The Advanced Visible and Near Infrared Radiometer type 2 (AVNIR-2) is a visible and near infrared radiometer for observing land and coastal zones. It provides better spatial land-coverage maps and land-use classification maps for monitoring regional environments. More information / documentation (e.g. the ALOS User Handbook) on the AVNIR-2 is available from the JAXA webpage.
Sensor Description | Sensor Modes | Mission Operations Overview
Mission Operations Overview
AVNIR-2 was programmed for repetitive, global-scale observations, and like PRISM and PALSAR, the observation strategy implemented aimed to maintain both spatial and temporal consistency over regional scales. The timing of the regional observations had been determined based on cloud statistics, seasonality and sun elevation, although cloud cover inevitably limited the amount of useful data acquired.
The default mode for AVNIR-2 was nadir view.
For any given region, AVNIR-2 was typically scheduled for "one acquisition during two consecutive cycles", meaning that if an acquisition is successfully programmed the first of the two cycles in question, it was not be included in the plan during the second (regardless of cloud cover).
For detailed views of which regions were scheduled for acquisitions by AVNIR-2, please refer to the AVNIR-2 Acquisition Plan.