GLI workshop summary

JAXA/EORC
Hiroshi MurakamiJan. 31 2007

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GLI workshop (FY18 GLI PI report) Agenda
09:30~10:45 (75m) Atmosphere 1 (Chaired by Kikuchi)• T. Nakajima: Aerosol and cloud studies with use of remote sensing and modeling• T. Y. Nakajima: Estimation of cloud vertical inhomogeneity by multi-wavelength technique• Takamura: Radiative forcing of aerosol and cloud based on SKYNET observations
10:45-11:00 (15m) break
11:00~11:50 (50m) Atmosphere 2 (Chaired by Hori)• Kuji: Analysis of aerosol, cloud, and water vapor using GLI NUV, O2 absorption, and IR channels• Sano: Aerosol retrieval based on combination use of POLDER and GLI data
11:50~12:15 (25m) Cryosphere (Chaired by Hori)• Aoki: Estimation of snow/ice parameters and those effects on climate
12:30~14:00 Lunch
14:00~15:15 (75m) Ocean 1 (Chaired by Hosoda)• Ishizaka: Estimation of Primary Production in the Coastal Region• Fukushima: Improvement of the GLI ocean color algorithm and monitoring of the trend in the east Asian aerosolcharacteristics
15:35~15:40 (5m) break
15:40~16:30 (50m) Ocean 2 (Chaired by Hosoda)• Frouin: Inversion of ocean color• Kawamura (presented by Sakaida): Improvement of the microwave and infrared SSTs merging method• 16:30~17:25 (50m) Land (Chaired by Ono)
• Honda: Development of database and simulation of vegetation• Muramatsu: Net primary production and Land cover mapping from GLI data
17:25~17:35 (10m) break
17:35~18:50 (75m) Discussion (Chaired by Murakami)• GLI final products/results• Lessons of the GLI mission (instrument, science and applications) and what we can improve for the next mission
18:50~19:05 (15m) Summary and Closing

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FY18 Important items(1) Finalize results (papers and new products using the GLI merits) about radiationbudget and vegetation production as soon as possible(2) Concentrate to works which need for GCOM/SGLI algorithm and applications• Develop new methods and new products using GLI, POLDER and MODIS.
• Obtain basic in-situ data for development and validation of the SGLI
algorithm using existing ground observation instruments

The ADEOS-II Science Plan
~ GLI mission has the important purpose of developing and providing the following
higher order processed products ~(1) Biomass and Primary Productivity Related to Ocean and Its Annual Change on aGlobal Scale.
(2) Biomass and Primary Productivity Related to Land and Its Seasonally and Annual
Changes on a Global Scale.
(3) Clouds, Water Vapor, and Aerosols.
(4) Full Monitoring of Processes Near the Surface of the Earth.
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FY18 PI report
Efforts to reduce uncertainty of radiation budget• Cloud process and properties– Estimation of vertical structure of cloud particle size (Cloud convection process)– Estimation of cloud bottom height by O2 absorption band (763nm)• Aerosol– Evaluation of radiative forcing by aerosols using the ground observation system (SKYNET)– Estimation of aerosol properties by GLI NUV (380nm) and combination with POLDER Polarimetry– Evaluation long term trend of particle size of Asian ocean aerosols• Snow/ ice– Estimation and process of snow surface albedo considering snow grain size and impurities (dust andblack carbon)• Water vapor– Improvement of column water vapor accuracy over the land
Estimation of primary production and carbon cycle• Ocean Primary Production– Evaluation and improvement of OPP algorithms by in-situ OPP observations in each ocean areas• Land Net Primary Production– Construction of the of vegetation surface model database for multiangle satellite observation which
improve biomass estimation– Estimation and evaluation of global land NPPContribution to numerical models– The structure of interactive development between the numerical models and satellite observations
Application possibilities– Improvement (accuracy and temporal and spatial resolution) of microwave-TIR SST merging– An new quick technique of ocean color atmospheric correction
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Discussion (1) GLI final products/results
Time table for the final report
End of March 2007 Submit FY18 PI report to JAXA
Apr. 26

GCOM-C/EarhCARE symposium

Middle of August

Submit publication list, and 1-page report +PPT (each PI)
to JAXA including recommendations to the next mission,
GCOM-C

Middle of Sep.

EORC makes interim report (PPT) for the evaluation of theJAXA 5-year plan.

Middle of Oct

Submit GLI final dataset (Standard, research, and newproducts) to EORC

End of Jan. 2008
End of Mar.

Submit to JAXA
Final report published5Discussion (1) GLI final products/results
Examples of Final standard products and results
0. Radiance
Global mapped radiance (DVD)
1.Atmosphere• Aerosol and cloud standard products• Cloud amount and solar irradiance for radiation budget and vegetation production
2.Ocean• Ocean standard products (SST, Ocean color..)• Ocean color consistent to SeaWiFS and Aqua/MODIS• Current by MGDSST and the linear combination CHL• 250m demonstrate products• OPP
3.Land• Mosaic• NDVI/EVI• NPP• 250m products
4.Cryosphere• Polar region mosaic• Snow /ice standard products
5. Combination• All monthly products• Radiation budget• Vegetation Production• Assimilation and contribution to the numerical model• Combination with AMSR and POLDER, SeaWinds, and ILAS
• Summary of new findings• Summary of the experience and proposal to the next mission

6Discussion (2)Lessons of the GLI mission (instrument, science andapplications) and what we can improve for the next mission
1.Instrument• GLI and SGLI channels• 380nm was very useful• 250m resolution is useful for both the ocean and land
• We have to evaluate importance of every GLI channel• Calibration• Leave recommendation in terms of the next sensor• Validation• Validation data was very limited• We have to make feasible validation system for the next mission
2.Science and applications• Progress of model research
3. What we can /should improve for the next mission?
• We will summarize the experience and proposal to the next mission with the final
GLI report7