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Environmental Change and Environmental Change and Altered Marine Food Webs cont Altered Marine Food Webs cont Ozone Hole I. coastal Antactica (what is a problem?) can we solve anything? Eutrophication I. Easy Interpretation? II. Easy answers? Point and nonpoint Past Big changes? r Schofield ([email protected])

Environmental Change and Altered Marine Food Webs cont

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Environmental Change and Altered Marine Food Webs cont. Ozone Hole coastal Antactica (what is a problem?) can we solve anything? Eutrophication I.Easy Interpretation? II. Easy answers? Point and nonpoint Past Big changes?. Oscar Schofield ([email protected]). OZONE HOLE. - PowerPoint PPT Presentation

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  • Environmental Change and Altered Marine Food Webs cont.Ozone Hole coastal Antactica (what is a problem?)can we solve anything?EutrophicationI.Easy Interpretation? II. Easy answers? Point and nonpoint Past Big changes?Oscar Schofield ([email protected])

  • OZONE HOLE

  • 048123303500525456500.40.81.21.6Growth Rate (day -1) Production (mg C mg chl a-1 h-1)Julian Day stratificationadvectionstratification

  • 00.40.81.21.6345365254565020004000600080001000012000Chlorophyll a (mg m -3)Julian Day Growth Rate (day -1)

  • 19921993Large Scales ProcessesAntarctic Ozone Hole

  • 00.0020.0040.0060.0080.010.012wavelength (nm)Absorption spectrum for Antarctic Ice Algaeaph ( m2 mg chl a-1)

  • -2002040600.080.060.04 0.020% UVB Inhibition of PPAR by UVBO m5 m>5 m(Ein m-2)Smith et al., 1992 Science

  • 605040302010033035001503004506000.10.20.30.40.50.60.70.8Station B at Palmer Station Antarctica 1991-1992Depth (m)

  • Fmall RCII closed, probability of fluorescence is high Ftsome RCII closed, probability of fluorescence is variabledarknessbright light flashmedium light levelsFm - Fo = Fv FOall RCII open, probability of fluorescence is low

  • Impact of UV-radiation on the quantum yield of stable charge separations at photosystem II in Antarctic ice algae6:0010:0018:0014:00Local Daylight TimeUVB + UVA + PARUVA + PARPARfIIeo

  • Potential Photosystem II activity for Antarctica ice algae on 10/01/1993 Local Daylight Time6:008:0010:0016:0018:0014:0012:0020:00PARPAR + UVAPAR + UVA + UVBTime-integrated charge separations at PS II

  • PAR

  • Euthrophication

  • Eutrophication

    Point sources: sewage pipes, you can close the one point. Human Population centers

    Non point sources: Watershed, atmosphere, etc.

  • Warsh NOAA1989Hypoxia/Anoxia & Bottom Bathymetry

  • Modeled Effect of Bathymetric Variability on Upwelling 1 m/scurrentvelocitywindNorthAlong shoresubsurface deltascause upwelling to be 3d, not 2d. Barnegat deltaCape May deltaLEO delta

  • Glenn et al. Biogeochemistry of Upwelling in Mid-Atlantic Bight JGR submitted Chang et al. JGR 10.1029/2001JC001018.Chl a1.2 mg m-340NTemp (oC)1516171921222339N0.5 mg m-3Physical Forcing of Hypoxia in Mid-Atlantic Bight

  • Courtesy of Hans Graber, Rich Garvine, Bob Chant, Andreas Munchow, Scott Glenn and Mike Crowley

  • BarnegatCape May New Jersey Coastal Upwelling

  • Upwelling can account for the historical patterns of hypoxiaalong the NJ shore

  • Sybil SeitzingerJohn Harrison (Post-doc)

    AnthropogenicActivitiesHydrologyEffects on Coastal Ecosystems

    N, P, Sidissolved inorganicdissolved organicparticulateGLOBAL NEWSSpatially Explicit Global Models Of Nutrient Export To Coastal SystemsAverage DIN yield by watershed (kg N/km2/yr)MODEL INPUTSOTHER INPUTS:SlopeSoil C:NP Fertilizer Human PopulationAnimal ManureEtc.

    MODEL OUTPUTFunding Sources:UNESCO-IOCNSFNOAASEAGRANT

  • Model Calculation of NO3 Export by Rivers

    ( Modified from Caraco and Cote 1999; Seitzinger and Kroeze 1998)

  • Total N Fertilizer (kg/N/km^2/yr) 01 - 530531 - 931932 - 21512152 - 26722673 - 31333134 - 46644665 - 51385139 - 57955796 - 40023Model Input N Fertilizer Use (kg N/km^2/yr) Atmospheric Deposition (NOy) (kg N/km^2/Yr) NOy (kg N/km^2/Yr)56 - 135136 - 198199 - 252253 - 304305 - 342343 - 382383 - 439440 - 512513 - 651652 - 902Pop Density (indiv/km^2/ws)0 - 34 - 1819 - 2930 - 4243 -5960 - 8384 - 103104 - 138139 - 237238 - 965 Population Density (individual/km^2)Data Sources:Vorosmarty et al 2003RIVMDentener, pers. comm.

    STN Model Predicted Runoff (mm/yr) Mean Runoff (mm/yr) 01 - 6364 - 145146 - 185186 - 247248 - 304305 - 420421 - 541542 - 699700 - 2095

  • Modeled vs Measured DIN Export by Mediterranean Rivers RhoneEbroAxiosPoSeguraPiniosAdigeVarArnoData: European Envir. Agency

    Chart3

    8.2033466322

    8.2033466322

    8.2033466322

    8.2033466322

    8.2033466322

    8.2033466322

    8.1444796733

    7.5169255074

    7.5169255074

    6.9455723085

    6.0208709169

    6.0208709169

    6.6247605641

    6.6247605641

    6.6247605641

    6.8668625469

    6.7890742347

    6.7890742347

    5.6487058129

    Log Measured DIN Export (kgN/basin/yr)

    Log Modeled DIN Export (kgN/basin/yr)

    R2 = 0.81

    Reg_Summary

    SUMMARY OUTPUT

    Regression Statistics

    Multiple R0.9187200983

    R Square0.844046619

    Adjusted R Square0.8342995327

    Standard Error22704432.43503

    Observations18

    ANOVA

    dfSSMSFSignificance F

    Regression1446388422858588004463884228585880086.59476197830.000000074

    Residual168247860035149480515491252196843

    Total1752886702321008300

    CoefficientsStandard Errort StatP-valueLower 95%Upper 95%Lower 95.0%Upper 95.0%

    Intercept8370831.732630046954953.963979271.20357830920.2462584424-6373008.7024829723114672.167743-6373008.7024829723114672.167743

    159715340.7034050.71034393950.0763348529.30563065990.0000000740.54852131870.87216656030.54852131870.8721665603

    Log_reg_summary

    SUMMARY OUTPUT

    Regression Statistics

    Multiple R0.9016504661

    R Square0.8129735631

    Adjusted R Square0.8012844108

    Standard Error0.3869381918

    Observations18

    ANOVA

    dfSSMSFSignificance F

    Regression110.413017571710.413017571769.54940287010.000000322

    Residual162.39553862830.1497211643

    Total1712.8085562

    CoefficientsStandard Errort StatP-valueLower 95%Upper 95%Lower 95.0%Upper 95.0%

    Intercept6.54366535980.118529160355.207219431806.29239482166.7949358986.29239482166.794935898

    159715340.7034050.00000001080.00000000138.33962846120.0000003220.00000000810.00000001360.00000000810.0000000136

    Sheet1

    RecordnameYrLog(Modeled_DIN_export) (kgN/basin/yr)Log(Measured EEA DIN) (kgN/basin/yr)

    Rhone19978.20334663228.0582070415

    Rhone19988.20334663228.0761450566

    Rhone19998.20334663228.0199425414

    Rhone20008.20334663228.0112852219

    Rhone20018.20334663228.0024518092

    Rhone20028.20334663228.0860722198

    Po20018.14447967338.198927911

    Ebro20007.51692550747.8978738813

    Ebro20017.51692550747.8595852692

    Axios19986.94557230856.8809182886

    Segura20006.02087091696.3793960403

    Segura20016.02087091695.0668290957

    Arno19976.62476056416.8336173513

    Arno19986.62476056416.6777923421

    Arno19996.62476056416.6920753612

    Adige20016.86686254696.8448777112

    Var19976.78907423475.9279549218

    Var19996.78907423475.7885775437

    Pinios19985.64870581296.0699713689

    Data

    NumberRECORDNAMENew NameBasin_Area (ha)Basin_Area (km^2)N_Fert_cropN_Fert_GrassN_Fert_RiceAg_Area_ws(ha)Ag_Area_ws(km2)Total_N_Fert(kg_N_km2_yr)NOy_dep(kg-N/km2/yr)Mean_Basin_Runoff(m3/m2/yr)MEAN_Basin_Runoff (mm/yr)Basin_Runoff (km^3/yr)Pop_Dens(indiv/ws)Pop_Dens(indiv/km2)Proportion Urban (Seitzinger&Kroeze 1998)Urb_Pop_dens(indiv/ws)Urb_Pop_dens(indiv/km2)%Urban Pop%Urban Pop/100NO3_export(riv)(kg/km2/yr)NO3_export(riv)(kg/ha/yr)DIN_export (kgN/basin/yr)NO3-N from Pop (kg/ws/yr)NO3-N from N-Dep (kg-N/ws/yr)NO3-N from Fert (kg-N/ws/yr)DIN from Pop (kg/ws/yr)DIN from N-Dep (kg-N/ws/yr)DIN from Fert (kg-N/ws/yr)Total DIN (kg-N/ws/yr)(Check)%DIN_Point_Src%DIN_NOy_Dep%DIN_Fert_SrcDIP_Export_Nina_C(kg/ws)DIN:DIPModeled and Measured DINModeled and Measured runoffDischarge Calcluated by Zonal StatisticsNumberRiver NameBASINIDAccumulated Runoff (mm)CELLAREARunoff at the mouth Cell (mm)Discharge(km^3/yr-calculated from flow accumulation & zonal stats)Basin_Runoff (km^3/yr-calculated from mean runoff)

    1RhoneRhone992908099290.846.317923.08220367867036786.76940.01903.0150.539926539.92653.6096844808446700044.98906243080.17995624972275992.2922466135.09511976720.05095119771351.732204994513.5173220499159715340.703411041004.6149290815333079.8983798117840487.5063591238795.491765618246365.0790719140230180.132567159715340.7034050.775627116511.42430338887.800069495586078585.31938431.85545963741Rhone15724797.699218752233.0300292968838.911499023455.460897558753.6096844808

    2PoPo1021750010217549.11984.717417.6923653217065321.75383.721839.6210.56155561.5557.37637125992100097.09811597750.38839246392281692.23311964772.29985888520.02299858891147.065097929211.4706509793139469637.893294989947.9166136515138983.488071697072444.97622635938038.0207702518015390.3508052115516209.521709139469637.8932854.257584740612.917069709982.8253455495150588336.6894310.9261649405Measured values (from Ludwig and Meybeck)Modeled DIN transport (kg-N/ws/yr)Measured values (from Ludwig and Meybeck)Modeled runoff2Po15326354.4003906252195.3798828125038.421501159757.942270231957.37637125

    34EbroEbro828348082834.823.7765.18752552154055215.42896.35400.6470.278516278.51623.0708171568142800017.23913137960.06895652552347292.833700328816.4376050420.1643760504333.55366581153.335536658132879522.92414127518.5443798983342049.4681002424160283.1842797151747.0678120793977038.8670392828750736.989292932879522.92414420.461524542712.095792497487.442682959941655278.66113650.789324282134Ebro18110026.5996093752341.85009765625-0.00000523.480793262723.0708171568

    78AxiosAxios164619016461.929.91725.3280117583011758.33524.52373.7330.328073328.0735.400704918738500023.38733682020.0935493473000450.34504417334.50345044178822106.7483946641.3658204703706278.2455325596660615.4713242155503.2253263597840471.1121837457926132.410875818822106.748385920.62913799299.526875338989.84398666821474540.608778995.982952721678Axios7741900.81005859382359.3701171875091.80650329594.70131997115.4007049187

    108SeguraSegura218968021896.831.06576.916670170701017070.13798.237325.7390.011968711.96870.262076230279200036.16966862740.144678674531648.51.44534817873.99602272730.039960227340.26644639680.4026644641049230.52492148388.23572394157922.3304359206675395.757302441176582.0005114968927.5732187455803720.9511899051049230.5249201416.82966672416.569345018276.6009882577445900.6302116052.353059076108Segura587107.719001772427.63989257813-0.0000020.2615029410.2620762302

    27GHAASBasin1224Tevere9079189079.1848.09355.3246709095379095.375341.817625.3010.292827292.8272.658629041956800062.56071583560.2502428633599.250.06600265660.10550176060.0010550176645.75100649756.4575100656976838.65157184068.640560051595090.0316112865083730.95100073219041.68226646708157.1376174316049639.831690866976838.651574763.139554936110.150114872786.71033019121336784.968619525.219118119527GHAASBasin12241224796.97497558592288.21997070313374.33499145512.68021485852.6586290419

    42GHAASBasin1507Llobregat6918166918.1623.24002309682309.682324487.8460.096496496.49640.66757753461331000192.39219676910.769568787140026.35.78568578933.00723516150.0300723516313.00786014693.13007860152576871.764731326463.39200019145559.404721241693415.6610327091578491.43648022173215.691618276825164.6366289242576871.7647274261.25611130866.721936806832.0219518846101617.40951400225.358565791542GHAASBasin1507150702324.14990234375000.6675775346

    17GHAASBasin2255Arno4465754465.7551.27853.178504474764474.765445.7740.1810.33257332.571.4851744775538000120.47248502490.4818899401000793.08401357797.93084013584214640.77103335737.540166825383616.1014211252822361.29204751399527.672798522456503.1606911393358609.937536544214640.77102629.47951900310.831365838679.6891151584195014.59574668321.611924763317GHAASBasin22552258928.82800292972214.29003906250152.65699768072.39472146421.4851744775

    3GHAASBasin1553Adige6470586470.5838.8574.56404305384305.384342.1810.9290.556321556.3213.5997195362656000101.38194721340.40552778898481813.108253046912.92957317070.1292957317955.81177066269.55811770667359741.26715344503.967186867919061.2114133744921091.34841399409959.7209523721093682.841581915856098.704612657359741.267146945.570300722214.860343616579.5693556614618572.70739087911.8979404995COUNTRYRiversDIN_kg_yr(no_NO2)RiverQ(km^3/yr)Basin Area (km2)Modeled_avg_Basin_Runoff_(mm/yr)Modeled Q(km^3/yr)3GHAASBasin155315531557.71997070312176.31005859375111.24099731443.63217654213.5997195362

    15GHAASBasin2250Var4484324484.3232.47240.88702237382237.387335.9754.1770.426174426.1741.911100591717700039.47086737790.15788346950001153.003636638311.53003636646152820.3487436189.2594640882478627.3060467144655620.7023392343065.218762265569566.494195595540188.635783686152820.348741540.6999264789.256998610690.0430749114284172.7089669321.65169333515GHAASBasin2250424802233.03002929688256.6250.57305133131.9111005917

    103GHAASBasin2166Pinios4787404787.414.445004792024792.021444.5361.9330.092912892.91280.444810738710700022.35033629950.0894013452255125.328988595123.84299065420.238429906578.17342428830.7817342429445354.4672112387.897397334772501.3958295651289358.15821106914741.597902828386276.6610371825344336.208271172445354.4672111833.310081965819.372582378677.317335655767212.59901809886.6260563305103GHAASBasin21662166112.65200042722393.8701171875073.17340087890.44484187520.4448107387

    172Noname (GHAASBasin34)Algeria/ Tunisia842188008421881.241380017768200177682124.138101.9430.0001452450.1452450.122323596120850002.4756942630.009902777158127.50.06901962512.78788968820.02787889690.08558829340.000855882985776.9060826738.240749096420445.862841540324897.330090571531818.506491424724330.57678143329627.822807780185776.906080637837.094490749728.364950303234.540558947145661.86418817041.8785239632172Noname (GHAASBasin34)3446.18790054322555.21997070313-0.0000020.11802024080.1223235961

    228NileNile38258500038258508.61611019.58061534670001534670861.611168.5540.083866583.8665320.8606490254061100010.61489603620.042459584111679300.3052733382.87589569330.028758956940.2969307360.4029693074183462314.823222233002.3923520324859698.0040581127077312.0600792657272.8468989129583040.6248292151222001.351494183462314.8232221.448402550416.124859567782.42673788197816134590.484920.0234722564228Nile21076012642.770019531250.000001284.3646968742320.860649025

    228NileNile38258500038258508.61611019.58061534670001534670861.611168.5540.0000780.07841394720.3000004061100010.61489603620.042459584111679300.3052733382.87589569330.02875895690.73348511260.00733485113339382.781432233002.3923520393786.3612243021479415.2644305812657272.84689891111605.769856919570504.1646723913339382.7814282279.57377218563.342107723517.08412009097816134590.484920.0004272422228Nile21076012642.770019531250.000001284.3646968742320.860649025

    Only Rhone, Po, Ebro, Axios, Segura, Arno, Adige, Var, and Pinios

    RecordnameDIN_export (kgN/basin/yr)DIN ConcentrationLog(DIN_export) (kgN/basin/yr)Measured DIN Con(kg/km^3)Measured EEA DIN (kg N/ basin/yr)Log(Measured EEA DIN)Yr

    Rhone159715340.7034052318716.640496898.20334663221660000.00114342330.988.05820704151997

    Rhone159715340.7034052318716.640496898.20334663221730000.00119163995.548.07614505661998

    Rhone159715340.7034052318716.640496898.20334663221520000.00104699001.878.01994254141999

    Rhone159715340.7034052318716.640496898.20334663221490000.00102632574.208.01128522192000

    Rhone159715340.7034052318716.640496898.20334663221460000.00100566146.538.00245180922001

    Rhone159715340.7034052318716.640496898.20334663221770000.00121919232.448.08607221982002

    Po139469637.8932851676120.984479098.14447967331900000.00158098558.798.1989279112001

    Ebro32879522.9241442985825.3282662757.51692550742370000.0079044904.917.89787388132000

    Ebro32879522.9241442985825.3282662757.51692550742170000.0072374448.807.85958526922001

    Axios8822106.748385921125708.004210736.9455723085970000.007601832.376.88091828861998

    Segura1049230.524920142123918.30657356.02087091694849120.002395499.266.37939604032000

    Segura1049230.524920142123918.30657356.0208709169236100.00116635.055.06682909572001

    Arno4214640.77102622911817.286172786.62476056414710000.006817377.636.83361735131997

    Arno4214640.77102622911817.286172786.62476056413290000.004762032.366.67779234211998

    Arno4214640.77102622911817.286172786.62476056413400000.004921249.256.69207536121999

    Adige7359741.267146941157117.657227626.86686254691100000.006996449.626.84487771122001

    Var6152820.348741541910183.376916566.7890742347263000.00847139.485.92795492181997

    Var6152820.348741541910183.376916566.7890742347190800.00614578.765.78857754371999

    Pinios445354.467211183686140.4435396725.64870581291810000.001174820.106.06997136891998

    Data

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    Modeled DIN

    Measured DIN

    Modeled DIN: Measured DIN

    Sel Riv_Model&Measued DIN

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    Log Measured DIN Export (kgN/basin/yr)

    Log Modeled DIN Export (kgN/basin/yr)

    R2 = 0.81

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    Modeled DIN Concentration

    Measured DIN Concentration

    Modeled DIN Concentration: Measured DIN Concentration

    Measured DIN Concentration (mg/L)

    NumberRECORDNAMENew NameNO3_export(riv)(kg/km2/yr)DIN_export (kgN/basin/yr)Discharge (km^3)199719981999200020012002Average

    1RhoneRhone1351.7322049945159715340.70340568.880922281.661.731.521.491.461.771.605

    2PoPo1147.0650979292139469637.89328583.20976778211.91.9

    34EbroEbro333.553665811532879522.924144233.35228055252.372.172.27

    78AxiosAxios450.34504417338822106.748385927.8369405880.970.97

    108SeguraSegura40.26644639681049230.524920140.49400700664.849120.23612.54261

    27GHAASBasin1224Tevere645.75100649756976838.651574763.6197184586

    42GHAASBasin1507Llobregat313.00786014692576871.764727420.8656797365

    17GHAASBasin2255Arno793.08401357794214640.77102621.44742624864.713.293.43.8

    3GHAASBasin1553Adige955.81177066267359741.267146946.3604087461.11.1

    15GHAASBasin2250Var1153.00363663836152820.348741543.22106265980.2630.19080.2269

    103GHAASBasin2166Pinios78.1734242883445354.4672111830.64907187941.811.81

    172Noname (GHAASBasin34)Algeria/ Tunisia0.085588293485776.90608063780.1474647349

    228NileNile40.296930736183462314.823222332.3942981403

    weihan:Data from GEMS GLORI

    weihan:value of station 5925(waterbase ID) because it is the station that closest to the coastal zone on the atlas

  • DIN Export from Watersheds

    (kg N *10E6/basin/yr)

  • Chlorophyll a from SeaWiFS (mg/m3)2002

  • DIN Export vs Coastal Chl a for 6 Sub-regions of the Mediterranean

    Chart2

    0.1032576

    0.1072387097

    0.1305935484

    0.1211387097

    0.1133741935

    0.1165516129

    0.1433653333

    0.1364526316

    0.1270789474

    0.1278052632

    0.1384105263

    0.1423894737

    0.0840410256

    0.0773367089

    0.0769025641

    0.0750734177

    0.0626564103

    0.0685924051

    0.0530844444

    0.0439822222

    0.0448622222

    0.0447022222

    0.0424177778

    0.0434933333

    0.0554193548

    0.0432387097

    0.0438193548

    0.0465806452

    0.0435612903

    0.0422064516

    Composite DINexp VS Chl a

    DIN Export (kg/region/year)

    Chl a (mg/m3)

    (Without SW Region)

    R2 = 0.93

    1&2 Pixels

    SeaWIFS Chlorophyll a concentration (Regional Mean)

    NW Chl_aNW DINexpN Chl_aN DINexpNE Chl_aNE DINexpSW Chl_aSW DINexpS Chl_aS DINexpSE Chl_aSE DINexp

    19970.29365311925265.724300.63965309744604.921800.35954175850742.727300.5475210857590.043800.148161225464.355200.50457226608245.6401

    19980.32605311925265.724300.84517309744604.921800.28299175850742.727300.4962310857590.043800.125641225464.355200.52647226608245.6401

    19990.39220311925265.724300.67185309744604.921800.29440175850742.727300.6079910857590.043800.138011225464.355200.54131226608245.6401

    20000.36517311925265.724300.74725309744604.921800.23755175850742.727300.5114710857590.043800.126371225464.355200.56714226608245.6401

    20010.34023311925265.724300.82588309744604.921800.19400175850742.727300.7036910857590.043800.133481225464.355200.56157226608245.6401

    20020.35556311925265.724300.84986309744604.921800.24143175850742.727300.5463810857590.043800.122901225464.355200.57433226608245.6401

    Chl_a Concentration

    DINexp (Kg N/Basin/Yr)199719981999200020012002Mean Chl_a

    NW311925265.720.293650.326050.392200.365170.340230.355560.34548

    N309744604.920.639650.845170.671850.747250.825880.849860.76328

    NE175850742.730.359540.282990.294400.237550.194000.241430.26832

    S1225464.360.148160.125640.138010.126370.133480.122900.13242

    SE226608245.640.504570.526470.541310.567140.561570.574330.54590

    SW10857590.040.547520.496230.607990.511470.703690.546380.56888

    weihan:value of 2-3 pixels out from the coastal line

    1&2 Pixels

    000000

    000000

    000000

    000000

    000000

    000000

    1997

    1998

    1999

    2000

    2001

    2002

    Modeled DIN Export

    Chl a Concentration

    Modeled DINexp Vs. Chl a Concentration by Region in the Mediterranean

    1st Pixel

    0

    0

    0

    0

    0

    0

    Modeled DINexp

    Chl a Concentration

    Modeled DINexp Vs. 1997-2002 Chl a Concentration Mean by Region in the Mediterranean

    2nd Pixel

    0

    0

    0

    0

    0

    Modeled DINexpVs. 1997-2002 Chl a Concentration Mean by Region in the Mediterranean (Without SW Region)

    Modeled DIN Export

    Mean Chl a Concentration (mg/l)

    Modeled DINexp Vs. 1997-2002 Chl a Concentration Mean by Region in the Mediterranean (without SW Region)

    by river

    Only the first Pixels

    DINexp (Kg N/Basin/Yr)199719981999200020012002MeanChl_a

    NW311925265.724300.454580.542150.672240.618580.574420.602390.57739

    N309744604.921800.898271.338420.966051.122981.271241.341391.15639

    NE175850742.727300.508980.372630.396550.287410.231360.311380.35139

    S1225464.355200.157770.143180.166470.136280.158050.140280.15034

    SE226608245.64010.650720.711810.764920.814770.777120.792680.75200

    SW10857590.043800.836890.724360.889490.720081.123950.801390.84936

    by river

    000000

    000000

    000000

    000000

    000000

    000000

    1997

    1998

    1999

    2000

    2001

    2002

    Modeled DIN Export

    Chl a concentration

    Chl a Concentration of the First Pixel

    2nd Pixel with DIN_Edit

    0

    0

    0

    0

    0

    0

    Mean Chl A

    Modeled DIN Export

    Chl a concentration

    Chl_a VS. Composite DINexp

    Regional DINexp vs Chl_a Concentration (the second pixels from the coast line

    Chl_a Concentration

    DINexp199719981999200020012002Mean Chl_aDINexpChl_a

    SCentral1225464.360.132710.109960.112160.111760.106040.108730.11356NW311925265.724300.25814

    SW10857590.040.381030.351920.377650.371520.380520.358330.37016311925265.724300.26810

    NE175850742.730.210100.193340.192260.187680.156640.171480.18525311925265.724300.32648

    SE226608245.640.138550.108100.109550.116450.108900.105520.11451311925265.724300.30285

    Ncentral309744604.920.358410.341130.317700.319510.346030.355970.33979311925265.724300.28344

    NW311925265.720.258140.268100.326480.302850.283440.291380.28840311925265.724300.29138

    NC309744604.921800.35841

    309744604.921800.34113

    309744604.921800.31770

    309744604.921800.31951

    309744604.921800.34603

    309744604.921800.35597

    NE175850742.727300.21010

    175850742.727300.19334

    175850742.727300.19226

    175850742.727300.18768

    175850742.727300.15664

    175850742.727300.17148

    SC1225464.355200.13271

    1225464.355200.10996

    1225464.355200.11216

    1225464.355200.11176

    1225464.355200.10604

    1225464.355200.10873

    SE226608245.64010.13855

    226608245.64010.10810

    226608245.64010.10955

    226608245.64010.11645

    226608245.64010.10890

    226608245.64010.10552

    SW10857590.043800.38103

    10857590.043800.35192

    10857590.043800.37765

    10857590.043800.37152

    10857590.043800.38052

    10857590.043800.35833

    Chl_a VS. Composite DINexp

    000000

    000000

    000000

    000000

    000000

    000000

    1997

    1998

    1999

    2000

    2001

    2002

    Modeled DINexp VS. Chl a concentration (from 2nd pixel)

    Chl_a_concenVSModeledDINexp

    0

    0

    0

    0

    0

    Mean Chl_a

    Without SW region

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    Without SW

    NumberRECORDNAMENew NameDIN_export (kgN/basin/yr)Measured EEA DINLogMeasured DIN Con (mg/L)Chl_a

    1RhoneRhone159715340.703Rhone1997114342330.9847978.05820704151.660.440

    2PoPo139469637.8931998119163995.548.07614505661.730.691

    34EbroEbro32879522.9241999104699001.878.01994254141.520.724

    78AxiosAxios8822106.7482000102632574.208.01128522191.490.717

    108SeguraSegura1049230.5252001100566146.538.00245180921.460.807

    27GHAASBasin1224Tevere4214640.7712002121919232.448.08607221981.770.798

    42GHAASBasin1507Llobregat7359741.267Po2001158098558.798.1989279111.902.472

    17GHAASBasin2255Arno6152820.349Ebro200079044904.917.89787388132.370.425

    3GHAASBasin1553Adige445354.467200172374448.807.85958526922.170.485

    15GHAASBasin2250VarAxios19987601832.376.88091828860.970.617

    103GHAASBasin2166PiniosSegura20002395499.266.37939604034.850.361

    172Noname (GHAASBasin34)Algeria/ Tunisia2001116635.055.06682909570.240.321

    228NileNileArno19976817377.636.83361735134.710.285

    19984762032.366.67779234213.291.414

    19994921249.256.69207536123.401.215

    Adige20016996449.626.84487771121.102.960

    Rhone2002200120001999199819997MeanVar1997847139.485.92795492180.260.255

    Pixel value0.7000.5890.5890.5890.5500.4030.5701999614578.765.78857754370.190.394

    1.1351.0590.7500.9551.0230.8320.959Pinios19981174820.106.06997136891.810.284

    2.1882.0421.6031.7781.6600.6761.658

    0.7761.1351.0230.7760.7760.3760.810

    0.4950.4320.5130.4790.4470.3160.447

    0.5890.5690.5130.5690.4320.3890.510

    0.6760.7000.6760.6760.5690.3890.614

    0.3390.4170.4470.3890.4470.3050.391

    0.2850.3160.3390.3050.3160.2750.306

    Mean0.7980.8070.7170.7240.6910.4400.696

    Po1.3491.6031.1751.0961.8411.7780.539

    1.2161.3961.0960.7501.4451.4450.501

    6.6074.3654.8424.5194.3652.9850.508

    1.9052.0421.4962.1131.7181.7180.508

    5.3704.0742.4273.3113.1991.5490.493

    1.0231.3491.3960.7000.9891.6030.507

    Mean2.9122.4722.0722.0822.2601.8460.509

    Ebro0.5310.4790.5690.5310.4170.4950.504

    0.4470.8320.4950.4320.4790.4790.527

    0.3270.3050.3510.3390.2570.2850.311

    0.3890.5310.4320.3390.3630.3630.403

    0.3270.4470.3390.3050.3160.2850.337

    0.3050.3160.3630.2950.2480.2750.300

    Mean0.3880.4850.4250.3740.3470.3640.397

    Axios0.4790.4030.6530.8041.0590.4790.646

    1.0960.3050.3891.3490.6530.3760.695

    0.3760.2660.2950.4620.4030.4170.370

    0.2750.3760.3510.334

    Mean0.5570.3250.4460.7480.6170.4240.511

    Segura0.2480.2850.3050.2950.2480.3050.281

    0.2400.2750.2750.2660.2240.2850.261

    0.2850.3890.6310.3760.4170.3160.402

    0.2160.2660.2750.2660.2240.2750.254

    0.3270.4170.3510.3390.2750.2950.334

    0.2750.2950.3270.3050.2160.2950.286

    Mean0.2650.3210.3610.3080.2670.2950.303

    Tevere0.6530.5310.8910.9551.0230.6760.788

    0.1760.1700.2090.2240.2090.1760.194

    0.2400.2320.2950.3050.3160.2570.274

    0.1640.1580.1950.2160.2090.2090.192

    Mean0.3080.2730.3980.4250.4390.3300.362

    Llobregat0.5310.4790.5690.5310.4170.4950.504

    0.5690.4030.4950.4950.4030.4320.466

    0.3270.3050.3510.3390.2570.2850.311

    0.3050.3160.3760.3160.2400.2660.303

    Mean0.4330.3760.4480.4200.3290.3700.396

    Arno0.2660.2750.3160.3160.3160.2850.296

    5.0123.1991.6032.1132.5122.888

    Mean2.6391.7370.9601.2151.4140.2851.375

    Adige3.8024.3652.7862.8843.1992.6003.273

    1.3491.6031.1751.0961.8411.7781.474

    Mean2.5762.9841.9811.9902.5202.1892.373

    Var0.2570.2660.3050.2950.2660.2660.276

    0.2750.2570.3050.2750.2660.2400.270

    0.5130.3380.3890.6310.3510.2750.416

    0.5130.3270.3630.3760.3160.2400.356

    Mean0.38950.2970.34050.394250.299750.255250.329375

    Pinios0.5130.2850.5130.5690.3270.5500.460

    0.2750.2160.2750.4170.2400.4470.312

    Mean0.3940.25050.3940.4930.28350.49850.3855833333

    Nile0.1160.1160.1200.1240.1120.1700.126

    0.1160.1080.1160.1120.1160.1430.119

    2.5123.1992.5121.7182.7864.3652.849

    2.5121.5492.1881.5491.1751.4451.736

    Mean1.3141.2431.2340.8761.0471.5311.207

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    Regional DINexp vs Chl_a Concentration (the second pixels from the coast lineDINexpChl_a

    Chl_a Concentrationcorrected Chl a concentration by 40% ErrorNW298426320.564400.10326

    DINexp199719981999200020012002Mean Chl_a199719981999200020012002Mean Chl_a298426320.564400.10724

    SCentral1057081.810.132710.109960.112160.111760.106040.108730.113560.05308444440.04398222220.04486222220.04470222220.04241777780.04349333330.0454237037298426320.564400.13059

    SW10771813.140.381030.351920.377650.371520.380520.358330.370160.15241212120.1407696970.15106060610.14860606060.15220606060.14333333330.1480646465298426320.564400.12114

    SE46485305.290.138550.108100.109550.116450.108900.105520.114510.05541935480.04323870970.04381935480.04658064520.04356129030.04220645160.0458043011298426320.564400.11337

    NE175359933.980.210100.193340.192260.187680.156640.171480.185250.08404102560.07733670890.07690256410.07507341770.06265641030.06859240510.0741004219298426320.564400.11655

    NW298426320.560.258140.268100.326480.302850.283440.291380.288400.10325760.10723870970.13059354840.12113870970.11337419350.11655161290.1153590624NC327646942.521400.14337

    Ncentral327646942.520.358410.341130.317700.319510.346030.355970.339790.14336533330.13645263160.12707894740.12780526320.13841052630.14238947370.1359170292327646942.521400.13645

    327646942.521400.12708

    327646942.521400.12781

    327646942.521400.13841

    327646942.521400.14239

    NE175359933.983700.08404

    175359933.983700.07734

    175359933.983700.07690

    175359933.983700.07507

    175359933.983700.06266

    175359933.983700.06859

    SC1057081.810500.05308

    1057081.810500.04398

    1057081.810500.04486

    1057081.810500.04470

    1057081.810500.04242

    1057081.810500.04349

    SE46485305.290.05542

    46485305.290.04324

    46485305.290.04382

    46485305.290.04658

    46485305.290.04356

    46485305.290.04221

    SW10771813.137700.15241

    10771813.137700.14077

    10771813.137700.15106

    10771813.137700.14861

    10771813.137700.15221

    10771813.137700.14333

    1997

    1998

    1999

    2000

    2001

    2002

    DIN Export

    Chl a Concentration

    Composite DINexp VS. SeaWIFS Chl a Concentration

    Mean CHl a

    DIN Export

    Chal Concentration

    Composite DINexp VS. 1997-2002 Mean Chl a Concentration

    Composite DINexp VS Chl a

    DIN Export (kg/region/year)

    Chl a (mg/m3)

    (Without SW Region)

    R2 = 0.93

    DIN export

    Chl Concentration

    DIN Export VS Chl a Concentration

    y = 1E-10x + 0.0741R2 = 0.1979

    RegionComposite DINexpSeaWiFS Chl aYearMean Chl_aSeaWiFs Chl-a w/ 40%E

    NC327646942.521400.3584119970.339790.14337

    NC327646942.521400.3411319980.339790.13645

    NC327646942.521400.3177019990.339790.12708

    NC327646942.521400.3195120000.339790.12781

    NC327646942.521400.3460320010.339790.13841

    NC327646942.521400.3559720020.339790.14239

    NE175359933.983700.2101019970.185250.08404

    NE175359933.983700.1933419980.185250.07734

    NE175359933.983700.1922619990.185250.07690

    NE175359933.983700.1876820000.185250.07507

    NE175359933.983700.1566420010.185250.06266

    NE175359933.983700.1714820020.185250.06859

    NW298426320.564400.2581419970.288400.10326

    NW298426320.564400.2681019980.288400.10724

    NW298426320.564400.3264819990.288400.13059

    NW298426320.564400.3028520000.288400.12114

    NW298426320.564400.2834420010.288400.11337

    NW298426320.564400.2913820020.288400.11655

    SC1057081.810500.1327119970.113560.05308

    SC1057081.810500.1099619980.113560.04398

    SC1057081.810500.1121619990.113560.04486

    SC1057081.810500.1117620000.113560.04470

    SC1057081.810500.1060420010.113560.04242

    SC1057081.810500.1087320020.113560.04349

    SE46485305.290.1385519970.114510.05542

    SE46485305.290.1081019980.114510.04324

    SE46485305.290.1095519990.114510.04382

    SE46485305.290.1164520000.114510.04658

    SE46485305.290.1089020010.114510.04356

    SE46485305.290.1055220020.114510.04221

    SW10771813.137700.3810319970.370160.15241

    SW10771813.137700.3519219980.370160.14077

    SW10771813.137700.3776519990.370160.15106

    SW10771813.137700.3715220000.370160.14861

    SW10771813.137700.3805220010.370160.15221

    SW10771813.137700.3583320020.370160.14333

    RegionModeled DINexpSeaWiFS Chl aYearMean Chl_a

    Ncentral309744604.920.3584119970.33979

    Ncentral309744605.920.3411319980.33979

    Ncentral309744606.920.3177019990.33979

    Ncentral309744607.920.3195120000.33979

    Ncentral309744608.920.3460320010.33979

    Ncentral309744609.920.3559720020.33979

    NE175850742.730.2101019970.18525

    NE175850743.730.1933419980.18525

    NE175850744.730.1922619990.18525

    NE175850745.730.1876820000.18525

    NE175850746.730.1566420010.18525

    NE175850747.730.1714820020.18525

    NW311925265.720.2581419970.28840

    NW311925266.720.2681019980.28840

    NW311925267.720.3264819990.28840

    NW311925268.720.3028520000.28840

    NW311925269.720.2834420010.28840

    NW311925270.720.2913820020.28840

    SCentral1225464.360.1327119970.11356

    SCentral1225464.360.1099619980.11356

    SCentral1225464.360.1121619990.11356

    SCentral1225464.360.1117620000.11356

    SCentral1225464.360.1060420010.11356

    SCentral1225464.360.1087320020.11356

    SE226608245.640.1385519970.11451

    SE226608246.640.1081019980.11451

    SE226608247.640.1095519990.11451

    SE226608248.640.1164520000.11451

    SE226608249.640.1089020010.11451

    SE226608250.640.1055220020.11451

    SW10857590.040.3810319970.37016

    SW10857590.040.3519219980.37016

    SW10857590.040.3776519990.37016

    SW10857590.040.3715220000.37016

    SW10857590.040.3805220010.37016

    SW10857590.040.3583320020.37016

  • BIG CHANGES IN THE PAST?

  • Delwiche, C.F. (1999)Tracing the thread of plastid diversity through the tapestry of life. Am. Nat. 154: 5164-77.

  • Phytoplankton in the geological record PALEOZOIC MESOZOIC CENOZOICCarbon. Permian Triassic Jurassic Cretaceous TertiaryDinoflagellatesDiatomsPrymnesiophytesPrasinophytes & ChlorophytesGreen lineage

    Redlineage

    Species diversity/abundance (relative scale)?

  • Elemental composition of phytoplanktonIn 1934, Alfred Redfield recognized that there is a remarkable similarity between the N:P ratio in the organic matter of plankton and the corresponding ratio of NO3- and PO43- in seawater: C106 N16 P 1. N:P ratio > or < than 16 is used as an indicator of nitrogen or phosphate limitation. Macronutrients

  • Mean size of diatom community

    Chart4

    853.4173998236130.61472427521576.220075372

    804.5486492991198.72634566561410.3709529325

    826.1643239539154.66749935461497.6611485533

    1006.49862827114.49385129371898.5034052463

    1678.12525483261458.04485067191898.2056589934

    1999.06275192111677.13087470792320.9946291342

    1913.89830189781611.93947400162215.8571297941

    1879.83240492041541.44066008822218.2241497525

    2034.79352771961663.06787990012406.5191755392

    1910.69560240651469.69948192282351.6917228902

    1728.80583192521357.95952137562099.6521424748

    1919.01570590031398.56241690422439.4689948964

    Diatom cell size (area)

    se

    Age (My)

    Mean diatom area (mm2)

    Sheet1

    SUMMARY OUTPUTEtoc and trimmed mean of mean area

    Regression Statistics

    Multiple R0.8944413398

    R Square0.8000253103

    Adjusted R Square0.7800278413

    Standard Error238.8422519825

    Observations12

    ANOVA

    dfSSMSFSignificance F

    Regression12282185.859393452282185.8593934540.00632837550.0000862465

    Residual10570456.21332089357045.6213320893

    Total112852642.07271434

    CoefficientsStandard Errort StatP-valueLower 95%Upper 95%Lower 95.0%Upper 95.0%

    Intercept-3230.2117257533758.3043099203-4.25978289120.0016636037-4919.8193126967-1540.6041388098-4919.8193126967-1540.6041388098

    X Variable 1175.820242613227.79742245146.32505560260.0000862465113.8837149461237.7567702803113.8837149461237.7567702803

    zDataTable.hayes

    ageEtocdelta.orgsd.delta.org.delta.carbsd.delta.carb.epsilon.psd.epsilon.p.fosd.fo.PaleoLatdelta.org.hiLat.epsilon.p.hilat.fo.hilat.meanarea agemeanarea nmeanarea minmeanarea meanmeanarea medianmeanarea maxmeanarea trim meansesemeanarea semeandiam agemeandiam nmeandiam minmeandiam meanmeandiam medianmeandiam maxmeandiam trim meanmeandiam semeanlen agemeanlen nmeanlen minmeanlen meanmeanlen medianmeanlen maxmeanlen trim meanmeanlen semeanwidth agemeanwidth nmeanwidth minmeanwidth meanmeanwidth medianmeanwidth maxmeanwidth trim meanmeanwidth semeanmaxlindim agemeanmaxlindim nmeanmaxlindim minmeanmaxlindim meanmeanmaxlindim medianmeanmaxlindim maxmeanmaxlindim trim meanmeanmaxlindim seminarea ageminarea nminarea minminarea meanminarea medianminarea maxminarea trim meanminarea semindiam agemindiam nmindiam minmindiam meanmindiam medianmindiam maxmindiam trim meanmindiam seminlen ageminlen nminlen minminlen meanminlen medianminlen maxminlen trim meanminlen seminwidth ageminwidth nminwidth minminwidth meanminwidth medianminwidth maxminwidth trim meanminwidth semaxarea agemaxarea nmaxarea minmaxarea meanmaxarea medianmaxarea maxmaxarea trim meanmaxarea semaxdiam agemaxdiam nmaxdiam minmaxdiam meanmaxdiam medianmaxdiam maxmaxdiam trim meanmaxdiam semaxlen agemaxlen nmaxlen minmaxlen meanmaxlen medianmaxlen maxmaxlen trim meanmaxlen semaxwidth agemaxwidth nmaxwidth minmaxwidth meanmaxwidth medianmaxwidth maxmaxwidth trim meanmaxwidth se

    10.922.1-21.90.30.150.322.540.420.2340.06730.3-21.7522.380.2350.915449.7161757.2435662944578.14110833.758853.4173998236130.61472427521576.220075372722.80267554840.9891045.309095779734.5555373.2540.56452375794.4446979630.9657.4342.463156588437.357512540.38951997032.74099698160.9552.3358.28148427567.531.12857.89118892460.63897821070.91450.87630.491950825725.543666666737226.66070511243.04269964190.91547.2531461.2112245805291.8585110833.758542.88952561723.43559882430.989835.26395505622637230.10664197534.44724220130.9653.233.109015384627118.9530.76803389832.94642076030.9550.8765.53825190994.529.265.05015402040.63642179330.915459.1132261.5878828909743.8055110833.7581278.8861140371731.22363646150.9891057.377269662945374.551.98514814814.94447554210.968253.430352941249.27314052.24006451613.29756052390.9552.33511.17602328089.7225510.22822118511.0863134754

    23.523.4-22.50.40.850.423.890.570.2510.07238.83-22.5723.960.253.518449.7161597.7779657919531.1971666667110833.758804.5486492991198.72634566561410.3709529325605.82230363343.51021044.776868866634.77775373.2540.23777200433.99185519343.5807.4343.681212138837.4287512541.37894553122.68192402963.5692.3357.85484934827.00285504231.12857.44596198460.53114358393.51750.87629.891583854223.907555555637226.29742531122.65345870333.51847.2531330.4058781815295.829110833.758529.5067806349606.17268703613.5102835.650166666726.151537230.6449239134.00317568413.5803.234.801937528118.9532.14630555562.83995697923.5690.8765.21388195714.529.264.72444214350.52677654613.518459.1132051.3745650283674.137110833.7581180.5701262964613.48431031693.51021055.738323529445374.550.57096739134.43056037483.583255.26548192775019053.22113333333.38323289723.5692.33510.85329391949.29559.89208381650.9060868801

    38.325.2-23.70.41.50.125.810.410.2580.08244.38-23.4925.590.268.316649.7161700.524825769565.016110833.758826.1643239539154.66749935461497.6611485533671.49682459938.39010.126644.762072956234.17275373.2539.83559104954.4145561018.3757.4341.876199900436.0265118.9540.20083684832.65109866138.3652.3358.55720945036.8141.37057.53259515710.8342070698.31590.87630.928484473923.843237227.18271745762.89887289828.31667.2531370.714626506283.5175110833.758511.1481533333671.05069871638.390835.190166666724.568537229.82258536594.4657163178.3750.93234.1492429.52118.9532.10346376812.78229064568.3650.8766.03453846154.2141.1244.88262711860.87999501318.316659.1132218.9811232843686.598110833.7581261.0235831013680.62249481518.3901556.361011111144.5374.551.0183048784.85157668228.378252.203423076947.86319050.40856944443.42813697778.3652.33511.628591169.7225510.46880382031.1039796318

    413.825.5-23.50.61.950.226.060.630.2730.09537.26-23.3225.880.27513.812557.52852134.7912309755628.429625110833.7581006.49862827114.49385129371898.5034052463892.004776976313.86513.782552.447955405541.6457222222373.2546.69444663325.863383824713.8687.4343.059796178736.5681875163.1240.23650790573.232791563813.8573.221510.12714695936.76361.93366666678.8171360381.385927690113.81210.87632.644607371826.190666666737228.04233478883.688786977813.81257.2531622.554700868329.8110833.758540.0768018451889.15302516413.8651038.642861538526.9137231.76188135595.917723987913.8680.93235.209044117628.735136.232.44229032263.168308789913.8570.8766.62207017543.95341.1245.6094905661.122993127213.812569.6272955.416584976778.543110833.7581719.4359105044911.853199947313.86515.6368.493461538548.75374.562.56172881366.607348753513.8697.4355.573260869647.401219.651.91549206354.320385077413.8573.5415.266842105310100.713.19211320752.245664251

    520.126.9-24.40.82.450.327.520.850.2770.10536.9-24.0427.140.28120.18774.46091666671909.3039928941233.96310632.041678.12525483261458.04485067191898.2056589934220.080404160720.15610.554.258083073548.0035133.353.2282721563.681834624720.1377.4356.67963896447.764163.1255.04561833335.715491471420.1263.413519.376677930413.5587.941333333317.18494970243.937676525320.1821.341.827940395536.2622511040.65564791573.058633309820.18730.9791131.5032741782541.136669957.1713514114151.082958157620.1561038.696178571427.4145133.336.54203846153.712107999220.1377.4347.427189189240.222136.246.03365.415207139620.1261.313.80165384625.992575.22711.76316666673.404533379520.18789.0813104.68765565521619.37717194.642686.6806587595382.927836561220.15610.572.137178571466.83517570.86907692315.097084792620.1387.4368.377421052652.8175219.665.86977777787.635563769720.1264.8428.202769230816.5465104.79625.98483333335.3999309971

    626.227.3-25.21.22.10.328.011.240.260.09344.36-24.2627.010.26926.29583.2952408.64729789971357.48521575.983551999.06275192111677.13087470792320.9946291342321.931877213226.26210.561.005087490553.61975165.78758.00949865024.581624441726.2407.4357.738172708350.8190833333163.1255.21363402785.458107589826.2313.413520.630760147812.587.941333333318.90340452593.789378078526.2920.8345.451609170237.6858888889165.78742.52087551973.794416741826.29544.651626.0597466537715.76421575.983551208.0863147368294.578348222326.2624.246.604258064530.4765165.78742.34130357144.900946085526.2407.4350.87785312545.7795136.248.92594791674.949340500126.2310.8315.32654032266.8175.22713.7608879313.327203338226.29589.0813550.09708881471808.6421575.983553079.0529987058425.234461226426.26210.577.008008064570.718517575.36456255.350786202226.2417.4368.834713414657219.664.70792567577.229701743826.2313.9228.746225806517.55104.79626.97989655174.9662403033

    731.129.3-271.92.30.230.111.910.2490.09256.1-24.327.260.27431.19983.2952285.23782051551244.30621575.983551913.89830189781611.93947400162215.8571297941301.958827896331.16410.558.638821972351.7662371795165.78755.51295010744.58785272431.1397.4360.619250854751.67163.1259.28650765775.67748301131.1313.66812521.059443615612.587.941333333319.35287219833.785403874131.1970.8344.18529144435.33165.78741.32564488843.622077262331.19944.651577.422524698715.76421575.983551173.3554439022282.122481692231.1644.245.3070312529.5165.78741.05687931034.753603874731.1397.4353.39647435946.5136.252.40087837845.234144402131.1310.8316.11579435487.175.22714.60457327593.326665196331.19989.0813383.27193350911569.54421575.983552950.2799875538402.593378167931.16410.573.923851562568.5337517572.12837068975.430090405931.1407.4373.02156562566.4045219.669.24535069447.537573667931.1313.9227.99851612917.55104.79626.18062068974.8739838411

    835.328.7-26.512.150.229.431.020.250.08944.5-26.3629.280.25135.38583.2952299.81157249651157.154222222221575.983551879.83240492041541.44066008822218.2241497525338.391744832235.35510.558.815274658753.97165.78756.47625698485.125982265935.3307.4359.362485833352.7921875163.1257.51159196436.281462016635.3253.66812520.216322083311.5562575.651666666718.52557653993.719483567835.3830.8345.693091607235.33165.78742.46047637864.088429719135.38573.8541624.3336699424715.76421575.983551150.9669791571320.793937536935.3554.245.630781818229165.78742.43415686275.229376790535.3307.4352.499383333348.0195136.251.11969642865.800161793235.3250.8315.3262257.164.2813.82807065223.251564735335.38589.0813300.99132079291345.24121575.983552801.5888015247435.076290064835.35510.573.315818181872.55717571.92907843145.976194197135.3317.4371.706665322662.87219.668.82333189668.733620303635.3253.9227.20618.33100.725.02304347835.024381217

    94329-26.812.20.329.81.040.2480.0943.75-27.0930.10.246432883.2952169.87863288251425.7435257768.6752034.79352771961663.06787990012406.5191755392371.7256478195431613.782565.746889022460.56875165.56465.746889022410.06340588943127.4354.841770833335.12975163.1254.841770833313.65804799714399.5822.727638888919.3241.370522.72763888893.731306654443270.8352.412265271338.2165.56449.9494864937.5338353029432873.8541393.39830057141133.9955246.621295.9491698462248.7831517522431611.93553.135687536.1415165.56453.135687511.162235567143127.4351.074312538.421136.251.074312511.73079957364390.8317.452611111117.03541.12417.45261111114.6576625633432889.0813320.27656035711594.460510023.6653186.7306803846631.1675804861431615.6378.395312584.7745165.56478.39531259.947995980643127.4363.217062538.9885219.663.217062517.383608641243916.531.016777777831.16231.01677777785.1894041907

    1051.929.7-27.61.42.050.230.491.410.2380.08434.05-2931.980.22751.91683.2951910.69560240651296.28345338.7431910.69560240651469.69948192282351.6917228902440.996120483751.9913.782569.550722222280.078165.56469.550722222216.302794600951.9623.5661.7907553.447114.7661.7907515.636097208551.949.5823.54687521.618541.370523.5468757.563544970251.9150.8360.373420935764.7525165.56460.373420935711.690351321451.91673.8541450.1260441875871.6655246.621450.1260441875401.280866006751.9911.93564.014555555670.03165.56464.014555555616.805603544751.9613.156.607551.4145113.4556.607515.333062328951.940.8317.16913.36141.12417.1698.889164358951.91689.0812408.31692368751433.20756564.62408.3169236875557.21659554551.9915.6375.683333333382.859165.56475.683333333315.805747594751.9626.6766.99355.648116.0766.99316.386484634251.9416.529.516529.973541.61929.51656.9967829572

    1157.929.7-26.60.13.10.330.510.320.2730.11343.06-26.5530.460.27357.92283.2951818.09793811381024.44755338.7431728.80583192521357.95952137562099.6521424748370.846310549657.91113.782572.582954545580.078165.56472.582954545516.395119352557.9823.5667.356187553.447136.52567.356187515.575123743857.986.0518.621187515.45641.370518.62118754.363219838257.9210.8349.270205430230.737165.56445.69896389669.395436845257.92273.8541439.3352139546646.1255246.621317.24503535333.079236683457.91111.93567.935181818270.03165.56467.935181818216.856836968457.9813.157.65312551.4145113.4557.65312512.525525488657.980.8314.15112.641.12414.1514.678390092557.92289.0812245.13012631821216.1646564.62136.95908895461.556607193457.91115.6377.718727272782.859165.56477.718727272715.950511614557.9826.6774.1922555.64816074.1922517.700512186657.98822.763518.37141.61922.76354.537569236

    126329.2-270.92.20.230.010.920.2470.08927.66-26.9829.980.247631583.2951919.0157059003682.93855338.7431919.01570590031398.56241690422439.4689948964520.453288996163813.782564.618312555.9565156.85664.618312517.909342123963623.5654.204833333336.18475136.52554.204833333317.6137626266376.0518.102785714312.541.370518.10278571435.002525621563140.8335.370246240619.8199736842106.21835.37024624069.0397380773631573.8541487.8161138553.315246.621487.8161138475.974003494763811.93560.94087550.4915156.85660.94087518.134751367463613.144.029833333335.9019044.029833333311.38110084436370.8313.58685714297.141.12413.58685714295.3627202915631589.0812394.76478526671066.76564.62394.7647852667640.864989952763815.6368.315562.7445156.85668.315517.804749065563626.6760.524333333337.478516060.524333333320.8648355831637822.24418.3341.61922.2445.2050814046

    zDataTable.hayes

    00

    00

    00

    00

    00

    00

    00

    00

    00

    00

    00

    00

    Etoc

    meanarea trim mean

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    meanarea trim mean

    Etoc

    Mean area

    mean area as function of Etoc (Hayes)

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    0

    meanarea trim mean

    Etoc

    Mean area

    mean area as function of Etoc (Hayes)

    0000

    0000

    0000

    0000

    0000

    0000

    0000

    0000

    0000

    0000

    0000

    0000

    C-13org

    Diatom cell size (area)

    1 se

    Million years before present

    Diatom size (mean area, mm2)

    d13Corg

    00

    00

    00

    00

    00

    00

    00

    00

    00

    00

    00

    00

    delta org hi lat

    meanarea trim mean

    0000

    0000

    0000

    0000

    0000

    0000

    0000

    0000

    0000

    0000

    0000

    0000

    Etoc

    Diatom cell size (area)

    1 se

    Million years before present

    Diatom size (mean area, mm2)

    Etoc

    000

    000

    000

    000

    000

    000

    000

    000

    000

    000

    000

    000

    Diatom cell size (area)

    se

    Million years before present

    Diatom size (mean area, mm2)

  • Sea level and the size of diatomsR = 0.74

    Chart8

    -19.5492005447000

    22.3920370315853.41739982361576.220075372130.6147242752

    -8.6850366483813.48407511371422.5378456067204.4303046207

    108.5409558981842.71976761261537.1035181713148.336017054

    105.39332966851141.3180232071312.2471400963970.3889063178

    46.62652047291718.0447016431941.28431510321494.8050881829

    137.49290813731999.06275192112320.99462913421677.1308747079

    118.13789358981913.89830189782215.85712979411611.9394740016

    158.6412116042060.52229479142361.37245013421759.6721394486

    206.33820047841945.28355061542284.76922062621605.7978806045

    190.72410160772227.41280472772664.82735323911789.9982562163

    156.45568377411910.69560240652351.69172289021469.6994819228

    184.99482583441573.27955992131934.93623012081211.6228897218

    207.38310643831894.7491522652363.05285917311426.4454453568

    1919.01570590032439.46899489641398.5624169042

    Sea level

    Mean size

    se of mean

    se of mean

    Age (Ma)

    Mean diatom size (mm2)

    Sea level (m)

    Sheet1

    pd13CcSea levelshackSr87/86O-18meanarea.agemeanarea.nmeanarea.minmeanarea.meanmeanarea.medianmeanarea.maxDiatom size (mean area)sesemeanarea.semeandiam.agemeandiam.nmeandiam.minmeandiam.meanmeandiam.medianmeandiam.maxdiatom cell size (mean diameter)meandiam.semeanlen.agemeanlen.nmeanlen.minmeanlen.meanmeanlen.medianmeanlen.maxmeanlen.trim.meanmeanlen.semeanwidth.agemeanwidth.nmeanwidth.minmeanwidth.meanmeanwidth.medianmeanwidth.maxmeanwidth.trim.meanmeanwidth.semeanmaxlindim.agemeanmaxlindim.nmeanmaxlindim.minmeanmaxlindim.meanmeanmaxlindim.medianmeanmaxlindim.maxmeanmaxlindim.trim.meanmeanmaxlindim.seminarea.ageminarea.nminarea.minminarea.meanminarea.medianminarea.maxminarea.trim.meanminarea.semindiam.agemindiam.nmindiam.minmindiam.meanmindiam.medianmindiam.maxmindiam.trim.meanmindiam.seminlen.ageminlen.nminlen.minminlen.meanminlen.medianminlen.maxminlen.trim.meanminlen.seminwidth.ageminwidth.nminwidth.minminwidth.meanminwidth.medianminwidth.maxminwidth.trim.meanminwidth.semaxarea.agemaxarea.nmaxarea.minmaxarea.meanmaxarea.medianmaxarea.maxmaxarea.trim.meanmaxarea.semaxdiam.agemaxdiam.nmaxdiam.minmaxdiam.meanmaxdiam.medianmaxdiam.maxmaxdiam.trim.meanmaxdiam.semaxlen.agemaxlen.nmaxlen.minmaxlen.meanmaxlen.medianmaxlen.maxmaxlen.trim.meanmaxlen.semaxwidth.agemaxwidth.nmaxwidth.minmaxwidth.meanmaxwidth.medianmaxwidth.maxmaxwidth.trim.meanmaxwidth.setimemax/min arealog max/min area

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    360.76346948522.1311506501118.1378935898-0.31020385920.70776105130.66366783.2952310.26184053141244.30614202.452060.52229479142361.37245013421759.6721394486300.8501553428364410.559.672307678454.731165.56456.86293844635.496215063636217.4360.019051587363.645625163.1257.36053070188.499935264236183.8920.764542245414.767575.651666666720.76454224544.088649973136660.8346.796630492836.9665165.56444.15431229214.4550531901366773.8541589.3999402881799.85614202.451290.1084917918265.8064670828364410.546.626272727330165.56442.5314255.558314761936217.4355.415244047651.67136.253.68895394747.741531096936180.8316.40385416678.292564.2816.40385416674.0317843299366789.0813393.5762659941470.9137515197.243019.3406364197453.7355875967364410.574.017113636478.6517572.3247256.498031038336227.4367.627329545561.952219.663.038562510.437709854836186.3226.793888888918.8588.3826.79388888894.916802323136205.77409483582.3133907

    411.66448898732.5504299271158.6412116040.34236142960.70773795790.24413283.2952069.07739120191378.44367768.6751945.28355061542284.76922062621605.7978806045339.4856700108412013.782561.386858440252.5569038462165.56458.24392604468.383214403541117.4350.840068181829.47163.1250.840068181814.30504740214199.5822.727638888919.3241.370522.72763888893.731306654441310.8348.629305953237.433165.56446.24532705346.626759217413273.8541287.5339705625819.2285246.621196.0204352667227.8710174176412011.93547.6478529.1465165.56443.0819.235944236441117.4348.117795454536.62136.248.117795454512.43562618914190.8317.452611111117.03541.12417.45261111114.6576625633413289.0813217.21887271881481.32710023.6653094.6085975667573.6045757412412015.6374.16481.4295165.56472.33811111118.453392082241127.4354.606895833335.11219.654.606895833317.21397147941916.531.016777777831.16231.01677777785.189404190741135.72270967042.1326525216

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    630.26321118482.0460573446207.3831064383-0.4252155310.7078204669-0.1631583.2951919.0157059003682.93855338.7431919.01570590032439.46899489641398.5624169042520.453288996163813.782564.618312555.9565156.85664.618312517.909342123963623.5654.204833333336.18475136.52554.204833333317.6137626266376.0518.102785714312.541.370518.10278571435.002525621563140.8335.370246240619.8199736842106.21835.37024624069.0397380773631573.8541487.8161138553.315246.621487.8161138475.974003494763811.93560.94087550.4915156.85660.94087518.134751367463613.144.029833333335.9019044.029833333311.38110084436370.8313.58685714297.141.12413.58685714295.3627202915631589.0812394.76478526671066.76564.62394.7647852667640.864989952763815.6368.315562.7445156.85668.315517.804749065563626.6760.524333333337.478516060.524333333320.8648355831637822.24418.3341.61922.2445.20508140466388.88618084331.9488342463

    Sheet1

    Haq's sea level

    Mean size

    se of mean

    se of mean

    Age (Ma)

    Mean diatom size (mm2)

    Sea level (m)

    Sheet2

    O-18

    Mean size

    se of mean

    se of mean

    Age (Ma)

    Mean diatom size (mm2)

    d18O

    Sheet3

  • A potential climatic feedback:The evolution of large diatoms in a Hothouse worldIncrease the efficiency of the biological pumpSmall cells decrease efficiency of biological pumpRadiation of small diatoms in response to reduced shelf area and low CO2Drawdown of CO2 and climatic cooling, and decreased shelf areaDecreased drawdown of CO2, warming

  • Explain ekman, plume stratification death decay - hypoxiaSybil Seitzinger's nutrient biogeochemistry group addresses land and atmosphere interactions with the coastal ocean spatial scales range from molecular to global temporal scales from minutes to decades Two projects are highlighted here. 1. Development of spatially explicit global models of N, P, C and Si transport to coastal systems as a function of natural and anthropogenic watershed properties. Seitzinger chairs an international workgroup (20 scientists from 8 countries) that are developing this model-system Model system will be used for analysis of past, current and hypothetical future scenarios of land use/human activities to identify the major factors controlling nutrient transport globally to highlight differences in the spatial pattern of factors controlling N vs P vs C vs Si export to coastal systems to identify differences in factors controlling export of different forms of these nutrients (dissolved inorganic, dissolved organic, and particulate) guide environmentally sound economic development, particularly in less developed nations Model system will be interfaced with coastal ecosystem effects - through the use of global observations systems (remote sensing, etc.) Add global DIN export image as backgroundWhy chose Mediterranean?Dynamics (human activities, industrialized countries, desert regions)Add units

    SeaWiFS chlorophyll data, Spatial differencesMention the result with SW region

    The average of the distribution has also changed over 2-fold over the Cenozoic from a mean area of ~2000 um2 in the Paleocene to