Research Announcement

ALOS Operation Concept [APPENDIX A-4]

1. Priority of Sensor Observation Mode

1.1 PRISM Observation Mode

The priorities of observation over land areas (including coastal zones) and polar regions in the day light zone are as follows.

1.1.1 Observation in three-line mode with 35 km swath width
  • All Japanese land areas
  • Parts of the Asia-Pacific region
  • Other areas
1.1.2 Nadir viewing mode with 70 km swath width
  • Global land area

1.2 AVNIR-2 Observation Mode

The priorities of observation over land areas (including coastal zones) and polar regions in the day light zone are as follows.

1.2.1 Nadir viewing mode with 70 km swath width
  • All Japanese land areas
  • Parts of the Asia-Pacific region
  • Other areas
1.2.2 Pointing mode along cross-track direction
  • Compensation of 1.2.1(1)
  • Simultaneous regional observation with PALSAR is required
  • Other areas

1.3 PALSAR Observation Mode

The priorities of observation over land areas (including coastal zones) and polar regions are as the follows.

1.3.1 High resolution mode with off-nadir angle 35 degree, HH polarization, in night zone
  • Global land area
1.3.2 Other modes
  • Specified area
  • Simultaneous regional observation with AVNIR-2 is required
  • Other areas

Specified areas will be determined based on requirements presented by the appropriate organizations.