Ramesh P. Singh Center for Earth Observing and Space Research, - PowerPoint PPT Presentation

Ramesh P. Singh Center for Earth Observing and Space Research, College of Science, George Mason University, Fairfax VA rsingh3@gmu.edu Indian Institute of Technology Kanpur, India

Contributions from • Anup K. Prasad • Dongliang Sun • Ritesh Gautam and C. Hsu (NASA) • Partha S. Bhattacharjee • Menas Kafatos

(April 3-12, 2005, MODIS Terra images) Ground based CIMEL Sun- photometer

West-East AOD profile South-North AOD profile

AERONET

Dust storm and AIRS – Water Vapor Mixing Ratio (g/Kg) Ascending - Day

Descending - AIRS – Water Vapor Mixing Ratio (g/Kg) Night

Ascending - AIRS – Relative Humidity (%) Day

Descending - AIRS – Relative Humidity (%) Night

Ascending - AIRS – Temperature (Kelvin) Day

Descending - AIRS – Temperature (Kelvin) Night

Dust storms (May 7-8-9, 2005) • Contributions from Himalayas Middle East • Anup K. Prasad IG plains • Ritesh Gautam Sahara • Dongliang Sun Desert • Partha S. Bhattacharjee • Menas Kafatos Arabian Sea Sources

IG plains METEOSAT Path of Dust storm May 8, 2005 Arabian Sea Arabian Sea Arabian Sea

8 May 2005 9 May 2005

AIRS profile over ocean AIRS Water vapor (day) AIRS RH (day)

Instantaneous shortwave top of the atmosphere forcing for 8th May 2005 based on CERES SSF Edition 2 data. High negative forcing in the regions of dust loading is quite evident.

AIRS

Dust storms: Association of water vapor with high AOD (Dust) Maximum AOD (550nm Maximum AOD (550nm) Mean Water vapor (cm) NIR-CC Mean Water vapor (cm) NIR-CC

AIRS over Himalayas during dust storm Delhi Kanpur

Vertical Distribution of Aerosols Blues correspond to molecular scattering and weak aerosol scattering, aerosols generally show up as yellow/red/orange. Stronger cloud signals are plotted in gray scales, while weaker cloud returns are similar in strength to strong aerosol returns and coded in yellows and reds. Just above the surface, in a layer several kilometers deep, a layer of aerosol particles is shown in shades of orange and red.

Jan 6, 2001 Jan 21, 2001 MODIS IR THERMAL IMAGES Jan 28 NASA findings about the Thermal anomaly associated with Gujarat earthquake

New AIRS products OZONE CARBON MONOXIDE METHANE SULFUR DIOXIDE DUST AND AEROSOLS VALIDATION AND COMPARISION WITH OTHER SENSOR RETRIEVALS! - OMI, TOMS, MOPITT - GPS water vapor

dust storm (April 2007) over the IG plains MOPITT CO profile AIRS WV profile Delhi 1-Apr Delhi 100 26-Mar 100 2-Apr 28-Mar 5-Apr 30-Mar 250 7-Apr 250 2-Apr 9-Apr 4-Apr 10-Apr 400 6-Apr 400 Pressure (Hpa) Pressure (Hpa) 11-Apr 550 550 700 700 850 850 1000 1000 50 75 100 125 150 175 200 225 250 275 300 0 3 6 9 12 CO (ppbv) Water Vapour (g/kg) Kanpur Kanpur 100 1-Apr 28-Mar 100 3-Apr 30-Mar 1-Apr 5-Apr 250 250 7-Apr 6-Apr 8-Apr 8-Apr 400 400 9-Apr 13-Apr Pressure (Hpa) Pressure (Hpa) 10-Apr 11-Apr 550 550 700 700 850 850 1000 1000 50 75 100 125 150 175 200 225 250 275 300 0 3 6 9 12 Water Vapor (g/kg) CO (ppbv) AIRS CO ?

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