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Ramesh P. SinghCenter for Earth Observing and Space Research,
College of Science, George Mason University, FairfaxVA
Indian Institute of TechnologyKanpur, India
Contributions from
• Anup K. Prasad• Dongliang Sun• Ritesh Gautam and C. Hsu (NASA)• Partha S. Bhattacharjee• Menas Kafatos
Ground basedCIMELSun-photometer
(April 3-12, 2005,MODIS Terra images)
West-East AOD profile
South-North AOD profile
AERONET
Ascending -Day
Dust storm andAIRS – Water
VaporMixing Ratio
(g/Kg)
Desce
nding -
Night
AIRS – Water Vapor Mixing Ratio (g/Kg)
AIRS – Relative Humidity (%)
Ascending -
Day
Descending -
Night
AIRS – Relative Humidity (%)
Ascending -
Day
AIRS – Temperature (Kelvin)
Descending -
Night
AIRS – Temperature (Kelvin)
Dust storms (May 7-8-9, 2005)
• Contributions from
• Anup K. Prasad• Ritesh Gautam• Dongliang Sun• Partha S. Bhattacharjee• Menas Kafatos
HimalayasIG plains
Arabian Sea
Middle East
Sahara Desert
Sources
Path of Duststorm
May 8, 2005
METEOSAT IG plains
Arabian Sea
Arabian Sea Arabian Sea
8 May 2005
9 May 2005
AIRS profileover ocean
AIRS Water vapor (day)
AIRS RH (day)
Instantaneousshortwave top of theatmosphere forcingfor 8th May 2005based on CERES SSFEdition 2 data. Highnegative forcing inthe regions of dustloading is quiteevident.
AIRS
Maximum AOD (550nmMaximum AOD (550nm) Mean Water vapor (cm) NIR-CC Mean Water vapor (cm) NIR-CC
Dust storms: Association of water vapor with high AOD (Dust)
AIRSover Himalayas during
dust storm
DelhiKanpur
Blues correspond tomolecular scattering andweak aerosol scattering,aerosols generally showup as yellow/red/orange.Stronger cloud signalsare plotted in grayscales, while weakercloud returns are similarin strength to strongaerosol returns andcoded in yellows andreds. Just above thesurface, in a layer severalkilometers deep, a layerof aerosol particles isshown in shades oforange and red.
Vertical Distribution of Aerosols
Jan 6, 2001 Jan 21, 2001
Jan 28
MODIS IR THERMALIMAGES
NASA findings about theThermal anomaly associatedwith Gujarat earthquake
New AIRSproducts
OZONECARBON MONOXIDEMETHANESULFUR DIOXIDEDUST AND AEROSOLS
VALIDATION ANDCOMPARISION WITH OTHERSENSOR RETRIEVALS!-OMI, TOMS, MOPITT- GPS water vapor
Delhi100
250
400
550
700
850
1000
50 75 100 125 150 175 200 225 250 275 300
CO (ppbv)
Pre
ssu
re (
Hp
a)
26-Mar
28-Mar
30-Mar
2-Apr
4-Apr
6-Apr
11-Apr
Kanpur100
250
400
550
700
850
1000
50 75 100 125 150 175 200 225 250 275 300
CO (ppbv)
Pre
ssu
re (
Hp
a)
28-Mar
30-Mar
1-Apr
6-Apr
8-Apr
13-Apr
dust storm (April 2007) over the IG plains
AIRS CO ?
Delhi100
250
400
550
700
850
1000
0 3 6 9 12Water Vapour (g/kg)
Pre
ssu
re (
Hp
a)
1-Apr
2-Apr
5-Apr
7-Apr
9-Apr
10-Apr
Kanpur100
250
400
550
700
850
1000
0 3 6 9 12
Water Vapor (g/kg)
Pre
ssu
re (
Hp
a)
1-Apr
3-Apr
5-Apr
7-Apr
8-Apr
9-Apr
10-Apr
11-Apr
MOPITT CO profile AIRS WV profile
Thank you for your attention