17 October 2007 Accuracy assessments of standard products of ALOS optical instruments and their high level products
Author Affiliations +
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.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Takeo Tadono, Takeo Tadono, Masanobu Shimada, Masanobu Shimada, Junichi Takaku, Junichi Takaku, Sachi Kawamoto, Sachi Kawamoto, "Accuracy assessments of standard products of ALOS optical instruments and their high level products", Proc. SPIE 6744, Sensors, Systems, and Next-Generation Satellites XI, 67440D (17 October 2007); doi: 10.1117/12.739891; https://doi.org/10.1117/12.739891


Diurnal changes in ocean color in coastal waters
Proceedings of SPIE (May 16 2016)
Overview of ALOS research and science program
Proceedings of SPIE (November 03 2004)
Advanced visible and near-IR radiometer for ADEOS
Proceedings of SPIE (July 31 1991)
DSM from ALOS data: the case of Andritsena, Greece
Proceedings of SPIE (October 25 2010)

Back to Top