Allen Chu & MODIS Aerosol Team MODIS Atmosphere Retreat Meeting St. Michaels, Maryland March 17,...
22
Allen Chu & MODIS Aerosol Team MODIS Atmosphere Retreat Meeting St. Michaels, Maryland March 17, 2003 Evaluation of MODIS Aerosol Products in ACE-Asia
-
Upload
kerry-gibson -
Category
Documents
-
view
215 -
download
0
Transcript of Allen Chu & MODIS Aerosol Team MODIS Atmosphere Retreat Meeting St. Michaels, Maryland March 17,...
Allen Chu&
MODIS Aerosol Team
MODIS Atmosphere Retreat MeetingSt. Michaels, Maryland
March 17, 2003
Evaluation of MODIS Aerosol Products in ACE-Asia
Allen Chu/NASA GSFC
Courtesy: NSF
March 24- May 10, 2001 ACE-Asia
Taklimakan
Desert
Tibetan Plateau
Himalaya
EOS/MODLAND Product
Beijing
Sun et al. 2001, JGR, 10,325-33
Seoul
100
20
30
40%
200
40
60
%
Gobi DesertDun-Huang
abc
cba
1
1
2
3
3
2
1 2
3
The birth of “perfect dust storm” captured by GMS-5 geosatationary satellite
“The Perfect Dust Storm” captured byMODIS on April 7, 2001
“Perfect dust storm”
AfterApproaching
A few centimeter accumulation of dust on the surface is very common in areas under storm paths. It is estimated that 200-300 million tons of sand are being removed every year.
Courtesy: Dr. Zev Levin
Arizona Grand Canyon
April 14, 2001
California Coast
Dusty weather from perfect dust storm
Arriving at California
/Moving out of US
April 22, 2001
New Jersey/New York Coast
Dust Layer
4/14/01NASA/GSFC
Dust Layer
4/9/01Sea of Japan
Trails of “perfect dust storm” captured by Micropulse Lidar
Dust/Pollution/Biomass burning in East Asia
spring summer
autumn winter
Jan.
Feb.
Mar.
Apr.
May
June
July
Aug.
Sep.
Oct.
Nov.
Dec.
Comparison between MODIS and AERONET derived AOD in Korea - ACE-Asia
Comparison between MODIS and AERONET derived AOD in Japan - ACE-Asia
Flight paths of C-130 and Twin Otter in ACE-Asia
MODIS Validation with AATS onboard C-130 and Twin-Otter in ACE-Asia
: MODIS
: AATS
L L
L
°
°°
°
° °
°
°
(2.5,7.5)
(1,8)(1.5,6)(2,8)
(3,9)(1,9)(3,9)
(3.3,8)
MODIS Validation with Sunphotometer/shadowband radiometer onboard RV Ron Brown in ACE-Asia
° ° °
° ° °
° ° °
(2,7.5) (3.5,8) (2,6)
(2.3,8.6) (2.6,8.6)
(3,9)
(1,9) (1.2,8.2) (2,8)
MODIS Validation in ACE-Asia
April 13, 2001
Dust and Biomass Burning Aerosols
Dust
Biomass Burnning
Dust
Biomass Burnning
MODIS True Color
MODIS Aerosol Optical Depth
TOMS Aerosol Index
AOD & fine-mode fraction
Correlations by US EPA Region for June PM event (Region 5-IL, IN, MI, MN, OH, WI & Region 3-DC, DE, MD, PA, VA, WV)
Initial Time Series Analysis of Hourly PM2.5 Concentrations and Coincident MODIS pixel
PM25 24 hr. average
Initial Time Series Analysis of Hourly PM2.5 Concentrations and Coincident MODIS pixel
PM25 24 hr. average
