December 9, 1999 (15:30-17:30)

Room: E

• Dr. Teruyuki Nakajima will make a copy of Table 1 and distribute it to the participants later.
  The discussion includes quantity, level, accuracy and methods.
• CPR and Lidar SWSR and MCWR were added to CLRE
• ARM was added to FSSRF
• PR and Aircraft were added to PRCP
• CPR was added to CLHT and CLBH
• TBD issues in surface leaving radiance. A candidate in this category includes SIMBAD
• MISR/MISR airborne will be suggested for collaboration of high radiance items such as cloud reflectors.

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• Dr. Teruyuki Nakajima showed the thirteen candidate sites. However, the sites must be narrowed down to approximately six.
• Ship Mirai is decided.
• The lines to Australia and Persia are decided.
• Instead of Cheju Island, Fukuejima Island is being considered.
• Issue: Is Fukuejima a good site?
• One more site is needed in a clean environment. Perhaps one more site in Maritime clean air-condition to have a reference. Chichijima, Minami Torishima and Guam are some of the candidates. However, Guam may be too far. Lidar from Japan Environmental Agency will reach the Chichijima area. They are considering sites in neighboring Asian countries or aim sites in the equator area.
• Deletion of one of the three: Mandalgobi, Yinchuan, and DinHuang are suggested since they are close to each other. Hunan area is suggested as alternative.

• Table 3 shows validation sites useful for GLI-ATMOS.
• Two sites in Australia used in MODIS.
• EOS land validation points.
• Thailand (BRRAA)
• Dr. Teruyuki Nakajima will make a list of locations corresponding to the instruments and contact points.

• Table 4 shows the milestones for the GLI-ATMOS validation.
• The main issue here is how to conduct the field campaign when AVIRIS and HIS fly every six months.

• Table 7 shows the tentative schedule of intensive field experiments for the GLI validation effort.
• Conducting intensive field experiments every six months is too frequent due to the limitation of manpower.
• First: 6 months after launch: The Pacific Ocean off Japan, aerosol and vicarious calibrations are targets.
• Second: 12 months after launch: The ocean off Japan, and the land off Chiang-Mai, aerosol cloud validation (for air) and biomass burning and precipitation (for land).
• Third: 24 months after the launch: Ocean and Land, the same as above
• Forth: 36 months after the launch: Follow on aircraft experiments.

• Table 6 shows various airborne measurement facilities useful for GLI-ATMOS.
  GLI-ATMOS/Thailand/MODIS(MAS,HIS), MISR/LAMP/Nagoya University and Hokkaido
  University. Dr. Fischer will be the contact point for adding an European site.

1. Joint OCTS and POLDER Analysis (Dr. Mukai and CNES Scientists )
2. Reviewed GAIT Algorithms
   • Cloud Pressure as well as Height
   • Create generation routines of Ground Albedo. From discussion with land and ocean?
   • Cloud reflection algorithm, generate 1.6 and 2.2 µm analysis in addition 3.7µm.
   • ATSK5, limit by solar zenith angle, not by latitudes
   • Algorithm for future implement should be done for precipitation,. Oxygen SRB and NASA aerosol Algorithm.
3. Cal/Val
   ·Vicarious Calibration: Low Radiance (Sky Radiometer and upwelling radiance meter), Cloud Reflectance: (Radiometers and microphysics measure, water vapor). If the cloud Reflectances are conducted, the water vapor must be conducted as well.
4. AI: Which is better, sky radiometer or upwelling radiance meter for low radiance? Only SIMBAD does upwelling radiance meter.
5. For Cloud Reflectance, we might have to ask EOS's cloud variability help in combining radiometer and microphysics.
6. Polar region with low WV was suggested for water vapor.
7. For cloud validation, we use SR, Radiometer (VIS and NIR) and Microwave Radiometer.
   For this radiometer, shall we use sky radiometer or some new instrument?
8. Issue: 250m validation site must be chosen for land. Must be a site with wide variety of reflectance.
9. Comment from NASA: It is difficult because MISR has a special instrument on it.

• Dr.Marchand
  ·MISR project uses bright desert target for calibration. GLI could join in until AVIRIS is ready.
  ·There are many satellites that will be calculating a Broadband TOA fluxes and GLI should join.
  Q: SWSR, necessary for re-retrieval, is narrow field of view?
  A: Yes
  
• Dr. King
  · Jeff Privette (NASA) and Si Chee Tsay at (GSFC), are currently developing modified sky/sun radiometer that pivots down as well as looking up. It includes up to 15 channels including 1.6 and 2.2µm. There is one prototype but by time of GLI validation, there should be several of these at AERONET sites.
  · Aqua validation plans are currently under development. Once ADEOS-II launch is determined, it would be possible to validate ADEOS-II/GLI and Aqua/MODIS at the same time. This could utilize US aircraft and ground-based validation resources.