Schedule of the project

Bern, 31 Oct – 3 Nov 2007 ISSI 001

© EISCAT Scientific Association Tony van Eyken

Schedule of the project• Start of IPY observations and model runs: 1 March 2007• Publication of modeling challenge paper (‘Ionospheric Challenges

of the IPY’, Sojka et al, EOS, 88(15), 171, 10 April 2007)• Model-observation workshop at the CEDAR meeting,

June 24-29, 2007, in Santa Fe, NM. • First workshop at ISSI: 31 October - 3 November 2007. Goals:

– Review observations and model outputs– Refine observational modes and model parameters, – Outline of first paper and poster(s),– Abstract submissions for Fall AGU meeting, – Planning for follow on papers

• Second Workshop at ISSI: 13-17 May 2008. Goal: – Review first year of observations and model outputs, – Finalize first papers, – Prepare presentations for EGU meeting.

• Third Workshop at ISSI: 7-11 October 2008. Goal: – Finalize second round of papers, – Plan future model/observation projects



Draft Meeting plan

• This is a workshop so I suggest just an initial outline and some goals; both can change as we go along of course.

• We have four full days of peace and quiet to exploit the data and modelling efforts and really advance our joint project.

• We have lots of people, lots of expertise, lots of resources: I believe we could complete the first paper to a point ready to submit during the workshop.

• Reaching our goals from the first meeting by the end of this meeting would be both an entirely adequate goal and an entirely adequate outcome.



Tuesday 13 MayTuesday 13 May

• Morning break 1045-1115, Lunch 1300-1400, end Morning break 1045-1115, Lunch 1300-1400, end 1745 (wine)1745 (wine)

• Introduction (Team Leader: Tony van Eyken)Introduction (Team Leader: Tony van Eyken)• Review of work completed since the first Review of work completed since the first

workshop (30 October – 3 November 2007)workshop (30 October – 3 November 2007)– Presentations from each team memberPresentations from each team member

• Review of the first year of the International Polar Review of the first year of the International Polar Year operation with particular emphasis on the Year operation with particular emphasis on the incoherent scatter radars and modellingincoherent scatter radars and modelling

• Revision of the Workshop planRevision of the Workshop plan• Update website - Update website - http://http://www.issibern.chwww.issibern.ch

/teams/effective-physics/teams/effective-physics



Wednesday 14 MayWednesday 14 May• Morning break 1045-1115, Lunch 1300-1400, end 1800Morning break 1045-1115, Lunch 1300-1400, end 1800• MorningMorning

– Introduction (Team Leader) Introduction (Team Leader) – Review of work completed since the first workshop (30 October Review of work completed since the first workshop (30 October

– 3 November 2007)– 3 November 2007)– PresentationsPresentations

• Round table commentsRound table comments• Presentations: Jan, Pierre-Louis, John, …Presentations: Jan, Pierre-Louis, John, …

– Group discussions on developing publications as started at the Group discussions on developing publications as started at the first workshopfirst workshop

• What do we need GC/MC to do this week?What do we need GC/MC to do this week?– Selection of papers, leaders, groups for this workshopSelection of papers, leaders, groups for this workshop

• AfternoonAfternoon– Parallel working groups on specific papers and projectsParallel working groups on specific papers and projects– Date of next meetingDate of next meeting



Thursday 15 MayThursday 15 May

• MorningMorning– Group activityGroup activity– Identification of new publications/projectsIdentification of new publications/projects

• AfternoonAfternoon– Group discussions on developing projectsGroup discussions on developing projects

• 2 groups generally as yesterday with HC and JS2 groups generally as yesterday with HC and JS– Planning and distribution of tasks for the next meetingPlanning and distribution of tasks for the next meeting– Outline of Workshop ReportOutline of Workshop Report– ISSI forms for those leaving todayISSI forms for those leaving today– (Professor Lennart Bengtsson)(Professor Lennart Bengtsson)– First Team members depart (evening)First Team members depart (evening)



366 days ESR366 days ESR



Mihail Codrescu re CTIPe Mihail Codrescu re CTIPe runsruns

• ……• Right now I have results from June 2007 to the present. However, I Right now I have results from June 2007 to the present. However, I

have been playing with the code and the results are not have been playing with the code and the results are not consistent. I am in the process of re-tuning the model. This is consistent. I am in the process of re-tuning the model. This is necessary because I am using a new function of ACE data instead necessary because I am using a new function of ACE data instead of NOAA POES data to characterize particle precipitation at high-of NOAA POES data to characterize particle precipitation at high-latitudes. This is a critical input as it controls Joule Heating. NOAA latitudes. This is a critical input as it controls Joule Heating. NOAA POES data come 3 hours late and I want a real time run! POES data come 3 hours late and I want a real time run!

• Also, most of the older results are at one hour cadence. The Also, most of the older results are at one hour cadence. The present run (since March) is at 15 min cadence. present run (since March) is at 15 min cadence.

• I tried very hard to do a consistent run for the year but various I tried very hard to do a consistent run for the year but various things like my playing with the code, storage space, and machine things like my playing with the code, storage space, and machine differences slowed me down. I intend to have results for the whole differences slowed me down. I intend to have results for the whole year as soon as possible, hopefully by CEDAR. year as soon as possible, hopefully by CEDAR.

• I just received the CD with measurements from Jan. I did not look I just received the CD with measurements from Jan. I did not look at the numbers yet. at the numbers yet.

• Can you guys tell if the CTIPe is cold or hot at EISCAT and Poker?Can you guys tell if the CTIPe is cold or hot at EISCAT and Poker?• Wishing I were in Bern…Wishing I were in Bern…



Geof Crowley re Paper 3 Joule HeatingGeof Crowley re Paper 3 Joule Heating• Here is an outline and some thoughts about the Joule Heating paper, Sorry I couldn’t Here is an outline and some thoughts about the Joule Heating paper, Sorry I couldn’t

be with you.be with you.• Science Question: Is the fact that the 1st principles models have bigger Ti-Tn than Science Question: Is the fact that the 1st principles models have bigger Ti-Tn than

Jan’s model simply due to the fact that we have more variability in our convection Jan’s model simply due to the fact that we have more variability in our convection patterns?patterns?

• Figure 1: Difference between Ti -Tn for Svalbard radar, PFISR, Millstone. Probably Figure 1: Difference between Ti -Tn for Svalbard radar, PFISR, Millstone. Probably show the same altitude vs UTtime profiles for TN, TI and difference, so there’d be 3 show the same altitude vs UTtime profiles for TN, TI and difference, so there’d be 3 panels per radar. This could be altitude vs UTtime for 6-months, or for a year, or panels per radar. This could be altitude vs UTtime for 6-months, or for a year, or choose 1 month.choose 1 month.

• Figure 2: Difference between Ti -Tn for TIMEGCM, Mihail’s model, Jan’s model Same Figure 2: Difference between Ti -Tn for TIMEGCM, Mihail’s model, Jan’s model Same as above.as above.

• Figure 3 - Then focus on individual quiet and disturbed days, Te, Tn, etc to illustrateFigure 3 - Then focus on individual quiet and disturbed days, Te, Tn, etc to illustrate. . For the radars: What is relative magnitude of Ti – Tn for quiet times versus active For the radars: What is relative magnitude of Ti – Tn for quiet times versus active time? (add plot of Kp vs time)time? (add plot of Kp vs time)

• Figure 4: Geoff could do a scatter plot of Joule htg vs Ti-Tn for each radar location Figure 4: Geoff could do a scatter plot of Joule htg vs Ti-Tn for each radar location (fixed altitude) Winter versus summer, etc?(fixed altitude) Winter versus summer, etc?

• Figure 5: How does it vary with height? Figure 5: How does it vary with height? • Figure 6: What is difference between model and radars?Figure 6: What is difference between model and radars?• Figure 7: Will compare AMIE Joule Heating with that from TIMEGCM.Figure 7: Will compare AMIE Joule Heating with that from TIMEGCM.• During quiet times, do we find that Ti = Tn because the high latitude forcing is small. During quiet times, do we find that Ti = Tn because the high latitude forcing is small.

How much do we think the forcing from below will cause Ti increases. Generally How much do we think the forcing from below will cause Ti increases. Generally might expect it to be small.might expect it to be small.

• This is a follow-up from the mention in Paper-1 that Ti > Tn at higher latitudes. This is This is a follow-up from the mention in Paper-1 that Ti > Tn at higher latitudes. This is not the ‘common-sense’ of the community, who thinks that Ti=Tn below some not the ‘common-sense’ of the community, who thinks that Ti=Tn below some altitude. In fact what we find is a monotonic increase of Ti AND Tn, with Ti > Tn.altitude. In fact what we find is a monotonic increase of Ti AND Tn, with Ti > Tn.

• May include a discussion of exactly what is Joule and frictional heating (Herb see May include a discussion of exactly what is Joule and frictional heating (Herb see paper by Semeter and Thayer for excellent discussion) paper by Semeter and Thayer for excellent discussion)

• Discussion of charge exchange and whether it is an important part of collision Discussion of charge exchange and whether it is an important part of collision physics. Why is the neutral-neutral collision cross section different from the ion-physics. Why is the neutral-neutral collision cross section different from the ion-neutral collision cross-section?neutral collision cross-section?



Things from yesterdayThings from yesterday• Block diagram following P-L ideasBlock diagram following P-L ideas• More on conjugate paperMore on conjugate paper

– Composition: model from ionosonde F1 could be used as input for ISR Composition: model from ionosonde F1 could be used as input for ISR analysis to derive better temperaturesanalysis to derive better temperatures

• Much more on Paper 1Much more on Paper 1• Structuring of project in two general areas of ‘how to get Structuring of project in two general areas of ‘how to get

therosphere right’ and ‘reasons why not right’therosphere right’ and ‘reasons why not right’• Modelling based on PFISR and ESR datasets can be extended to Modelling based on PFISR and ESR datasets can be extended to

test if compatible with Sondrestrom, Millstone, Irkutsk, EISCAT test if compatible with Sondrestrom, Millstone, Irkutsk, EISCAT UHF, etcUHF, etc

• Radar data issuesRadar data issues– ‘‘Hairy’ temperatures (floor at ESR, ceiling at PFISR)Hairy’ temperatures (floor at ESR, ceiling at PFISR)– HHmmF2F2– ESR: geomagnetic parameters updatedESR: geomagnetic parameters updated– BinningBinning

• Web siteWeb site– Links from main ISSI and IPY pages to our groupLinks from main ISSI and IPY pages to our group– Names and contact detailsNames and contact details– French, Chinese and UK model linksFrench, Chinese and UK model links



Friday 16 MayFriday 16 May

• MorningMorning– Parallel working groups on specific Parallel working groups on specific

papers and projectspapers and projects

• AfternoonAfternoon– Parallel working groups on specific Parallel working groups on specific

papers and projectspapers and projects– More Team members depart (evening)More Team members depart (evening)



Saturday 17 MaySaturday 17 May

• Wrap up and departure of remaining Wrap up and departure of remaining Team membersTeam members



GoalsGoals• The goal of the proposed work, with the aid of three The goal of the proposed work, with the aid of three

workshops at ISSI, is to capitalise on the unique opportunity workshops at ISSI, is to capitalise on the unique opportunity represented by the huge increase in data availability during represented by the huge increase in data availability during the International Polar Year (IPY) of 2007-9 to dramatically the International Polar Year (IPY) of 2007-9 to dramatically improve the quality of models, and the underlying physical improve the quality of models, and the underlying physical understanding, and in particular to develop their understanding, and in particular to develop their capabilities in now- capabilities in now- and fore-castingand fore-casting. .

• We propose to concentrate on two main threads, the first We propose to concentrate on two main threads, the first related directly to the development of the model-data related directly to the development of the model-data comparison and model improvement, and the second comparison and model improvement, and the second related to understanding some of the important classes of related to understanding some of the important classes of phenomena revealed by the observational and modelling phenomena revealed by the observational and modelling programs.programs.

• The plan is to use the year-long ISR runs not just to validate The plan is to use the year-long ISR runs not just to validate the physics of high latitude ionospheric models, but also as the physics of high latitude ionospheric models, but also as input data for assimilation models. input data for assimilation models.



For the modelling work we will attempt to:For the modelling work we will attempt to:• Create model predictions for the year-long observationsCreate model predictions for the year-long observations• Compare these predictions with the observations and each other to identify model and Compare these predictions with the observations and each other to identify model and

theory challengestheory challenges• Upgrade and improve the models and refine the observations during a series of focused Upgrade and improve the models and refine the observations during a series of focused

ISSI workshops, allowing real improvements in repeats of the prediction-comparison cycleISSI workshops, allowing real improvements in repeats of the prediction-comparison cycleSpecific model related issues to be addressed include:Specific model related issues to be addressed include:• Improve the representation of tides in the modelsImprove the representation of tides in the models• Examine how global dynamics depends on gravity wave parameterizationsExamine how global dynamics depends on gravity wave parameterizations• Examine what middle and low latitude effects (dynamic and chemical) depend on high-latitude storm Examine what middle and low latitude effects (dynamic and chemical) depend on high-latitude storm

time inputstime inputs• Better evaluate the effective Joule heating from magnetospheric inputs and the role ion Better evaluate the effective Joule heating from magnetospheric inputs and the role ion

drag plays in modifying that heating.drag plays in modifying that heating.• Evaluate the importance of global electrodynamical coupling to the response of the neutral Evaluate the importance of global electrodynamical coupling to the response of the neutral

atmosphere to auroral events.atmosphere to auroral events.• Examine how well quantitatively current thermosphere-ionosphere models reproduce Examine how well quantitatively current thermosphere-ionosphere models reproduce

steady-state quiet time dynamics of the atmosphere globallysteady-state quiet time dynamics of the atmosphere globallyFor the related studies, we intend to develop improved understanding of:For the related studies, we intend to develop improved understanding of:• The relative importance of the sunlit, aurora precipitation ionization and ionospheric convection in The relative importance of the sunlit, aurora precipitation ionization and ionospheric convection in

the polar ionosphere, particularly with respect to the resulting variability in F2 region plasma the polar ionosphere, particularly with respect to the resulting variability in F2 region plasma dynamicsdynamics

• The day-to-day and seasonal variation of the polar ionosphere and the interaction The day-to-day and seasonal variation of the polar ionosphere and the interaction between the thermosphere and ionosphere. between the thermosphere and ionosphere.

• The role of cusp dynamics in the formation of polar cap patches.The role of cusp dynamics in the formation of polar cap patches.• The drivers and occurrence of polar cap patches in the northern and southern hemispheres, the The drivers and occurrence of polar cap patches in the northern and southern hemispheres, the

latter using ionosonde observations made at Zhongshan stationlatter using ionosonde observations made at Zhongshan station• The polar ionospheric response to Storms and SubstormsThe polar ionospheric response to Storms and Substorms• The role and importance of field-aligned currents in the high latitude ionosphere and The role and importance of field-aligned currents in the high latitude ionosphere and

magnetosphere. magnetosphere.



Paper 1Paper 1• TvE to leadTvE to lead• Target is JGRTarget is JGR• ESR/PFISR/Sondrestrom/Millstone Hill/Sondankyä(/Irkutsk?)ESR/PFISR/Sondrestrom/Millstone Hill/Sondankyä(/Irkutsk?)• Figure 1 with all NFigure 1 with all Nee data from four radars + Sodankylä data from four radars + Sodankylä

ionosonde (5 data sets)ionosonde (5 data sets)• 240-day data plots240-day data plots• Models: ASPEN, CTiPc, USU (3 data sets)Models: ASPEN, CTiPc, USU (3 data sets)• All work done and all components available All work done and all components available

– Jan to check/encourage workJan to check/encourage work– Set up to ingest data to MADRIGAL Set up to ingest data to MADRIGAL – Models to be run by AGU (takes ~1.5 months)Models to be run by AGU (takes ~1.5 months)– Calibrate altitudes (match E-layer altitude)Calibrate altitudes (match E-layer altitude)

• Components to be sent to Tony (Tony and Herb to write)Components to be sent to Tony (Tony and Herb to write)• Next version ready by AGUNext version ready by AGU



Common data viewsCommon data views• Models: Weekly filesModels: Weekly files• Vertical datasetsVertical datasets• Data format to be agreed between Millstone and model data Data format to be agreed between Millstone and model data

providersproviders• Coverage: 100-600kmCoverage: 100-600km

– 100(4)116km, 116(8)220km, 220(16)440km, 440(32)600km100(4)116km, 116(8)220km, 220(16)440km, 440(32)600km• Interval: 15 minutesInterval: 15 minutes• Parameters: NParameters: Nee, T, Tee, T, Tii, T, Tnn, O, O++/N/Nee, NO, NO++/N/Nee, O, O22

++/N/Nee, [N, [N22], [O], [O22], [O], ], [O], NNmaxmaxFF22, h, hmmFF22, TEC(100-600km), TEC(100-600km)

• Model runs to be generated for fixed set of stations (Tony to Model runs to be generated for fixed set of stations (Tony to check positions and confirm to everyone):check positions and confirm to everyone):

1.1. Longyearbyen (78.2N, 16.1E)Longyearbyen (78.2N, 16.1E)2.2. PFISR (65.1N, 147.4W)PFISR (65.1N, 147.4W)3.3. Sondrestrom (67.0N, 309.0E)Sondrestrom (67.0N, 309.0E)4.4. Millstone Hill (42.6N, 71.5W)Millstone Hill (42.6N, 71.5W)5.5. Sodankylä (67.3N, 26.6E)Sodankylä (67.3N, 26.6E)6.6. Tromsø (69.6N, 19.2E)Tromsø (69.6N, 19.2E)7.7. Irkutsk (52.9N, 103.2E)Irkutsk (52.9N, 103.2E)



Paper 2: Ionospheric variability Paper 2: Ionospheric variability over 240 Days over 240 Days

• Millstone/MC take leadMillstone/MC take lead• Statistics: weather v. climatology over 240 daysStatistics: weather v. climatology over 240 days• Variance of models v variance of data? Are the models Variance of models v variance of data? Are the models

producing variability which matches observation?inputs)producing variability which matches observation?inputs)• Exploits all ISR parametersExploits all ISR parameters• What needs to be done?What needs to be done?

– Uses same 15 minutes model data as paper 1Uses same 15 minutes model data as paper 1• Averages to be calculated?Averages to be calculated?

– MC to circulate some suggestionsMC to circulate some suggestions• Time scale?Time scale?

– Starts as model data sets become availableStarts as model data sets become available– Paper draft for consideration at the next meetingPaper draft for consideration at the next meeting

• Tasks?Tasks?– Proof of concept via MADRIGAL, John/Bill (with PFISR and Proof of concept via MADRIGAL, John/Bill (with PFISR and

EISCAT inputs)EISCAT inputs)



Paper 3: Role of Joule Paper 3: Role of Joule heating heating

• GC/HC/YR to leadGC/HC/YR to lead• Joule heating: comparison between models across the year – Joule heating: comparison between models across the year –

comparison with data comparison with data • Effect of high latitude heating drivers, ‘steady state’ and multiple Effect of high latitude heating drivers, ‘steady state’ and multiple

transient eventstransient events• Then focus on individual quiet and disturbed days, TThen focus on individual quiet and disturbed days, Tee, T, Tnn, etc to , etc to

illustrateillustrate• Difference of temperatures shown by the different models due to Difference of temperatures shown by the different models due to

inclusion of variability?inclusion of variability?• What needs to be done?What needs to be done?

– Models: need to save Joule heating information as height integrated Models: need to save Joule heating information as height integrated values plus detailed altitude profiles for selected (~week) intervals.values plus detailed altitude profiles for selected (~week) intervals.

• Time scale?Time scale?– Data available: FebruaryData available: February– Paper outline for next meetingPaper outline for next meeting

• Tasks?Tasks?– Herb: circulate comment on heating processesHerb: circulate comment on heating processes



Paper 4: next timePaper 4: next time

• Long quiet stretch (October 2007)Long quiet stretch (October 2007)• ESR, EISCAT UHF (Finnish campaign), ESR, EISCAT UHF (Finnish campaign),

Millstone, Sondrestrom, PFISRMillstone, Sondrestrom, PFISR• Magnetosphere not the primary Magnetosphere not the primary

sourcesource• What needs to be done?What needs to be done?• Time scale?Time scale?• Tasks?Tasks?


© EISCAT Scientific Association Tony van EykenPaper 5: Correlation between observed Paper 5: Correlation between observed

data and recorded geomagnetic data and recorded geomagnetic indicesindices

• Lead: YR/SZ/MN/TULead: YR/SZ/MN/TU• Study based on data available in MADRIGALStudy based on data available in MADRIGAL• Geomagnetic drivers: does data (ESR and PFISR) show Geomagnetic drivers: does data (ESR and PFISR) show

correlation with accepted geomagnetic drivers over correlation with accepted geomagnetic drivers over extended time intervals?extended time intervals?

• For example: does magnitude of Kp match the variability For example: does magnitude of Kp match the variability seen in the data?seen in the data?

• Continuity of the record over 240+ days is unique featureContinuity of the record over 240+ days is unique feature• Use integrated (weighted?) indices for comparisonsUse integrated (weighted?) indices for comparisons• Time constants/delays: differences between ESR and PFISR?Time constants/delays: differences between ESR and PFISR?• What needs to be done?What needs to be done?

– Get PFISR data into MADRIGALGet PFISR data into MADRIGAL• Time scale: first draft to be written at next meetingTime scale: first draft to be written at next meeting• Tasks?Tasks?



Field-aligned currents?Field-aligned currents?

• Lead: GC/UPLLead: GC/UPL• Event list from UPLEvent list from UPL• Run AMIE for those events (GC)Run AMIE for those events (GC)• Correlation?Correlation?



Web pageWeb page

• Pictures for other data providers Pictures for other data providers (with links to data in MADRIGAL(with links to data in MADRIGAL



Paper 6Paper 6

• Effects of solar input, plus tides and Effects of solar input, plus tides and waves in the E-region waves in the E-region

• Different illumination angles at the Different illumination angles at the different data providersdifferent data providers

• 30-day runs long enough to see 30-day runs long enough to see waves and tideswaves and tides

• Two-week data runs don’t work for Two-week data runs don’t work for day-night variationsday-night variations



Goals/changes for next Goals/changes for next workshopworkshop

• 13-17 May 2007: 0900 start, arrive evening 12 13-17 May 2007: 0900 start, arrive evening 12 May, depart 17 May May, depart 17 May

• Team and travel locked in earlierTeam and travel locked in earlier• Ban on network connections for some hours each Ban on network connections for some hours each

day?day?• First floor if possibleFirst floor if possible• Space for sightseeing: trip?Space for sightseeing: trip?• Evening sessions (early dinner as a group)Evening sessions (early dinner as a group)• Half days (not AGU style) on:Half days (not AGU style) on:

– patchespatches– field aligned currentsfield aligned currents

• Physics issues behind modelsPhysics issues behind models



Work before next meetingWork before next meeting

• Task allocationsTask allocations• Monthly nagging emails from TonyMonthly nagging emails from Tony



Other things to doOther things to do• NowNow

– Information and data to be distributed around the group?Information and data to be distributed around the group?– Review goals of the working groupReview goals of the working group– Keep the long run going Keep the long run going – Change observing modes for data providers now, for second year?Change observing modes for data providers now, for second year?

• Two week observations don’t provide enough for studies of long quiet Two week observations don’t provide enough for studies of long quiet periodsperiods

• Resolute Bay radar’s role?Resolute Bay radar’s role?– Too many papers/projects? Add more people?Too many papers/projects? Add more people?– Too many topics? Spin off other workshops/groups?Too many topics? Spin off other workshops/groups?

• After this meetingAfter this meeting– Tony: exploit publicity possibilities of this meetingTony: exploit publicity possibilities of this meeting– Tony: collect missing CVs and adjust the team compositionTony: collect missing CVs and adjust the team composition– GC: Ingest ESR (and other ISR) data into AMIE: MADRIGALGC: Ingest ESR (and other ISR) data into AMIE: MADRIGAL– All: send Tony summary view of this meeting and proposals for the All: send Tony summary view of this meeting and proposals for the

next workshopnext workshop– Tony: Summary of first meetingTony: Summary of first meeting– All: Material to Jan for AGU PFISR invited talk by 1 December All: Material to Jan for AGU PFISR invited talk by 1 December – All: MADRIGAL related material to John for AGU posterAll: MADRIGAL related material to John for AGU poster



YesterdayYesterday

• Most of the day catching up to where we Most of the day catching up to where we left off last timeleft off last time

• Papers 1, 2, 3, 5 seen as most important, Papers 1, 2, 3, 5 seen as most important, plus a new paper 7 addressing conjugate plus a new paper 7 addressing conjugate data (particularly ionosonde data)data (particularly ionosonde data)

• Importance of compositionImportance of composition• Field-aligned flows and outflowsField-aligned flows and outflows• Change all references to 240 days to 365Change all references to 240 days to 365• Discussion of possible future Antarctic ISR Discussion of possible future Antarctic ISR

locationslocations



Paper 1Paper 1• TvE to leadTvE to lead• Target is JGRTarget is JGR• ESR/PFISR/Sondrestrom/Millstone ESR/PFISR/Sondrestrom/Millstone

Hill/Sondankyä(/Irkutsk?)Hill/Sondankyä(/Irkutsk?)• Figure 1 with all NFigure 1 with all Nee data from four radars + data from four radars +

Sodankylä ionosonde (5 data sets)Sodankylä ionosonde (5 data sets)• 365-day data plots365-day data plots• Models: ASPEN, CTiPc, USU (3 data sets)Models: ASPEN, CTiPc, USU (3 data sets)• What needs to be done?What needs to be done?• Time scale?Time scale?

– Paper outline by end of this meetingPaper outline by end of this meeting• Tasks? Tasks?

– Components to be sent to Tony (Tony and Herb to write)Components to be sent to Tony (Tony and Herb to write)



Common data viewsCommon data views• Models: Weekly filesModels: Weekly files• Vertical datasetsVertical datasets• Data format to be agreed between Millstone and model data Data format to be agreed between Millstone and model data

providersproviders• Coverage: 100-600kmCoverage: 100-600km

– 100(4)116km, 116(8)220km, 220(16)440km, 440(32)600km100(4)116km, 116(8)220km, 220(16)440km, 440(32)600km• Interval: 15 minutesInterval: 15 minutes• Parameters: NParameters: Nee, T, Tee, T, Tii, T, Tnn, O, O++/N/Nee, NO, NO++/N/Nee, O, O22

++/N/Nee, [N, [N22], [O], [O22], [O], ], [O], NNmaxmaxFF22, h, hmmFF22, TEC(100-600km), TEC(100-600km)

• Model runs to be generated for fixed set of stations (Tony to Model runs to be generated for fixed set of stations (Tony to check positions and confirm to everyone):check positions and confirm to everyone):

1.1. Longyearbyen (78.2N, 16.1E)Longyearbyen (78.2N, 16.1E)2.2. PFISR (65.1N, 147.4W)PFISR (65.1N, 147.4W)3.3. Sondrestrom (67.0N, 309.0E)Sondrestrom (67.0N, 309.0E)4.4. Millstone Hill (42.6N, 71.5W)Millstone Hill (42.6N, 71.5W)5.5. Sodankylä (67.3N, 26.6E)Sodankylä (67.3N, 26.6E)6.6. Tromsø (69.6N, 19.2E)Tromsø (69.6N, 19.2E)7.7. Irkutsk (52.9N, 103.2E)Irkutsk (52.9N, 103.2E)



Paper 2: Ionospheric variability Paper 2: Ionospheric variability over 365 Days over 365 Days

• Statistics: weather v. climatology over 365 daysStatistics: weather v. climatology over 365 days• Variance of models v variance of data? Are the Variance of models v variance of data? Are the

models producing variability which matches models producing variability which matches observation?inputs)observation?inputs)

• Exploits all ISR parametersExploits all ISR parameters• Uses same 15 minutes model data as paper 1Uses same 15 minutes model data as paper 1• Averages to be calculated?Averages to be calculated?• What needs to be done?What needs to be done?• Time scale?Time scale?

– Paper outline by end of this meetingPaper outline by end of this meeting

• Tasks? Tasks?



Paper 3: Role of Joule Paper 3: Role of Joule heating heating

• Joule heating: comparison between models across Joule heating: comparison between models across the year – comparison with data the year – comparison with data

• Effect of high latitude heating drivers, ‘steady Effect of high latitude heating drivers, ‘steady state’ and multiple transient eventsstate’ and multiple transient events

• Then focus on individual quiet and disturbed Then focus on individual quiet and disturbed days, Tdays, Tee, T, Tnn, etc to illustrate, etc to illustrate

• Difference of temperatures shown by the different Difference of temperatures shown by the different models due to inclusion of variability?models due to inclusion of variability?

• What needs to be done?What needs to be done?• Time scale?Time scale?

– Paper outline by end of this meetingPaper outline by end of this meeting

• Tasks?Tasks?



Paper 4: next timePaper 4: next time

• Long quiet stretch (October 2007)Long quiet stretch (October 2007)• ESR, EISCAT UHF (Finnish campaign), ESR, EISCAT UHF (Finnish campaign),

Millstone, Sondrestrom, PFISRMillstone, Sondrestrom, PFISR• Magnetosphere not the primary Magnetosphere not the primary

sourcesource• What needs to be done?What needs to be done?• Time scale?Time scale?• Tasks?Tasks?


© EISCAT Scientific Association Tony van EykenPaper 5: Correlation between observed Paper 5: Correlation between observed

data and recorded geomagnetic data and recorded geomagnetic indicesindices

• Study based on data available in MADRIGALStudy based on data available in MADRIGAL• Geomagnetic drivers: does data (ESR and PFISR) show Geomagnetic drivers: does data (ESR and PFISR) show

correlation with accepted geomagnetic drivers over correlation with accepted geomagnetic drivers over extended time intervals?extended time intervals?

• For example: does magnitude of Kp match the variability For example: does magnitude of Kp match the variability seen in the data?seen in the data?

• Continuity of the record over 365 days is unique featureContinuity of the record over 365 days is unique feature• Use integrated (weighted?) indices for comparisonsUse integrated (weighted?) indices for comparisons• Time constants/delays: differences between ESR and PFISR?Time constants/delays: differences between ESR and PFISR?• What needs to be done?What needs to be done?

– Get PFISR data into MADRIGALGet PFISR data into MADRIGAL• Time scale: first draft to be written at this meetingTime scale: first draft to be written at this meeting• Tasks?Tasks?



Field-aligned currents?Field-aligned currents?

• Lead: GC/UPLLead: GC/UPL• Event list from UPLEvent list from UPL• Run AMIE for those events (GC)Run AMIE for those events (GC)• Correlation?Correlation?• What needs to be done?What needs to be done?• Time scale?Time scale?• Tasks?Tasks?



Web pageWeb page

• Update dailyUpdate daily• Yvonne ‘volunteered’Yvonne ‘volunteered’



Paper 6Paper 6

• Effects of solar input, plus tides and waves Effects of solar input, plus tides and waves in the E-region in the E-region

• Different illumination angles at the Different illumination angles at the different data providersdifferent data providers

• 30-day runs long enough to see waves and 30-day runs long enough to see waves and tidestides

• Two-week data runs don’t work for day-Two-week data runs don’t work for day-night variationsnight variations

• What needs to be done?What needs to be done?• Time scale?Time scale?• Tasks?Tasks?



Paper 7Paper 7

• Conjugate emphasisConjugate emphasis• Ionosonde data setsIonosonde data sets• What needs to be done?What needs to be done?• Time scale?Time scale?• Tasks?Tasks?



Goals/changes for next Goals/changes for next workshopworkshop



Work before next meetingWork before next meeting



Other things to doOther things to do

• NowNow• After this meetingAfter this meeting

Documents

Schedule of the project