AVNIR-2 (Advanced Visible and Near Infrared Radiometer type 2)

The AVNIR-2 is a successor to AVNIR sensor that was on board of ADEOS (Advanced Earth Observing Satellite) which was launched in August 1996.

The sensor is a visible and Near Infrared Radiometer, it is used for observing land and coastal zones. With a spatial resolution of 10m it provides better spatial land-coverage maps and land-use classification maps for monitoring regional environments.

Sensor Characteristics Number of Bands 4 Wavelength Band 1 : 0.42 to 0.50 micrometers Band 2 : 0.52 to 0.60 micrometers Band 3 : 0.61 to 0.69 micrometers Band 4 : 0.76 to 0.89 micrometers Spatial Resolution 10m (at Nadir) Swath Width 70km (at Nadir) S/N >200 MTF Band 1 through 3 : >0.25 Band 4 : >0.20 Number of Detectors 7000/band Pointing Angle - 44 to + 44 degree Bit Length 8 bits Note: AVNIR-2 cannot observe the areas beyond 88.4 degree north latitude and 88.5 degree south latitude.

The main improvements over its predecessor is its instantaneous field-of-vision (IFOV), it also provides a better spatial resolution images with 10m over the 16m spatial resolution fron AVNIR, be side that, the increase of its CCD detectors (7000 pixels per CCD over 5000 pixels per CCD in ALOS) and electronics enable this higher resolution.

Observation Mode