ADEOS SERIES RESEARCH ANNOUNCEMENT 1997

Ryuji Matsuoka
ADEOS Science Program Coordinator
Earth Observation Research Center, National Space Development Agency of Japan

NASDA plans to publish a Research Announcement (RA) for ADEOS and ADEOS-II in the end of January 1997. This RA, provisionally named "ADEOS Series Research Announcement 1997 (ADEOS Series RA 97)," is for enhancing and demonstrating the potential of ADEOS and ADEOS-II in clarifying Earth system phenomena. It seeks to solicit a wide range of researchers and group participation.

ADEOS-II, the successor of ADEOS, is scheduled for launch in 1999. ADEOS-II will be placed in a sun-synchronous orbit at an altitude of 802.9 km, with an inclination of 99 degrees, and a recurrent period of 4 days. ADEOS-II will carry the Global Imager (GLI) and the Advanced Microwave Scanning Radiometer (AMSR) provided by NASDA, ILAS-II provided by EA, SeaWinds provided by NASA, and POLDER provided by CNES.

The following ADEOS and ADEOS-II science mission research areas will be encouraged in this ADEOS Series RA 97:

1. Algorithm Development
   A-1 ADEOS⁽¹⁾
   A-2 ADEOS-II⁽²⁾

2. Calibration and Validation
   B-1 ADEOS⁽³⁾
   B-2 ADEOS-II
   B-3 ADEOS & ADEOS-II⁽⁴⁾

3. Science⁽⁵⁾
   C-1 Stratospheric and Tropospheric Chemistry
   C-2 Clouds, Aerosols and Radiation
   C-3 Ocean Biology
   C-4 Ocean Physics
   C-5 Climate and Climate Change
   C-6 Weather
   C-7 Vegetation Biology
   C-8 Hydrological Processes
   C-9 Snow and Ice
   C-10 Geography

1. Only limited algorithms. Target algorithms will be specified in the RA.
2. Except algorithms of GLI and AMSR standard products.
3. Not recommended.
4. Cross calibration and validation of ADEOS and ADEOS-II.
5. Research activities will be conducted under the new ADEOS Series Science Program that will be reconstructed in the next summer. Each researcher is able to conduct his/her scientific research using only ADEOS data, only ADEOS-II data, or both ADEOS and ADEOS-II data.

The tentative schedule for this ADEOS Series RA 97 is as follows:

1. RA Issue: January 25, 1997
2. Proposal Deadline: April 25, 1997
3. Proposal Selection: June 25, 1997
4. Research Start: August 1997
5. Research Review: August 1999