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Proceedings Paper

Accuracy assessments of standard products of ALOS optical instruments and their high level products
Author(s): Takeo Tadono; Masanobu Shimada; Junichi Takaku; Sachi Kawamoto
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Paper Abstract

This paper describes the updated results of calibration and validation for optical instruments onboard the Advanced Land Observing Satellite (ALOS, nicknamed "Daichi"), which was successfully launched on January 24th, 2006 and continuously works very well. ALOS has an L-band Synthetic Aperture Radar called PALSAR and two optical instruments i.e., the Panchromatic Remote-sensing Instrument for Stereo Mapping (PRISM) and the Advanced Visible and Near Infrared Radiometer type-2 (AVNIR-2). PRISM consists of three panchromatic radiometers, and is used to derive a digital surface model (DSM) with high spatial resolution that is an objective of the ALOS mission. The geometric calibration is important in generating a precise DSM by stereo pair image of PRISM. AVNIR-2 has four radiometric bands from blue to near infrared and uses for regional environment and disaster monitoring etc. The radiometric calibration is also important for AVNIR-2 as well as PRISM. This paper describes updated results of the radiometric calibration of AVNIR-2, and geolocation determination accuracy evaluation as a part of geometric calibration, and validation of generated DSM by PRISM. These works will be done during the ALOS mission life as operational calibration to keep absolute accuracies of the standard products.

Paper Details

Date Published: 17 October 2007
PDF: 8 pages
Proc. SPIE 6744, Sensors, Systems, and Next-Generation Satellites XI, 67440D (17 October 2007); doi: 10.1117/12.739891
Show Author Affiliations
Takeo Tadono, Japan Aerospace Exploration Agency (Japan)
Masanobu Shimada, Japan Aerospace Exploration Agency (Japan)
Junichi Takaku, Remote Sensing Technology Ctr. of Japan (Japan)
Sachi Kawamoto, Remote Sensing Technology Ctr. of Japan (Japan)

Published in SPIE Proceedings Vol. 6744:
Sensors, Systems, and Next-Generation Satellites XI
Shahid Habib; Roland Meynart; Steven P. Neeck; Haruhisa Shimoda, Editor(s)

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