Share Email Print

Proceedings Paper

Preliminary assessment of several parameters to measure and compare usefulness of the CEOS reference pseudo-invariant calibration sites
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Test sites are central to any future quality assurance and quality control (QA/QC) strategy. The Committee on Earth Observation Satellites (CEOS) Working Group for Calibration and Validation (WGCV) Infrared Visible Optical Sensors (IVOS) worked with collaborators around the world to establish a core set of CEOS-endorsed, globally distributed, reference standard test sites (both instrumented and pseudo-invariant) for the post-launch calibration of space-based optical imaging sensors. The pseudo-invariant calibration sites (PICS) have high reflectance and are usually made up of sand dunes with low aerosol loading and practically no vegetation. The goal of this paper is to provide preliminary assessment of "several parameters" than can be used on an operational basis to compare and measure usefulness of reference sites all over the world. The data from Landsat 7 (L7) Enhanced Thematic Mapper Plus (ETM+) and the Earth Observing-1 (EO-1) Hyperion sensors over the CEOS PICS were used to perform a preliminary assessment of several parameters, such as usable area, data availability, top-of-atmosphere (TOA) reflectance, at-sensor brightness temperature, spatial uniformity, temporal stability, spectral stability, and typical spectrum observed over the sites.

Paper Details

Date Published: 13 October 2010
PDF: 12 pages
Proc. SPIE 7826, Sensors, Systems, and Next-Generation Satellites XIV, 78262L (13 October 2010); doi: 10.1117/12.865166
Show Author Affiliations
Gyanesh Chander, U.S. Geological Survey (United States)
Amit Angal, Science Systems and Applications, Inc. (United States)
Xiaoxiong (Jack) Xiong, NASA Goddard Space Flight Ctr . (United States)
Dennis L. Helder, South Dakota State Univ. (United States)
Nischal Mishra, South Dakota State Univ. (United States)
Taeyoung (Jason) Choi, Sigma Space Corp. (United States)
Aisheng Wu, Sigma Space Corp. (United States)

Published in SPIE Proceedings Vol. 7826:
Sensors, Systems, and Next-Generation Satellites XIV
Roland Meynart; Steven P. Neeck; Haruhisa Shimoda, Editor(s)

© SPIE. Terms of Use
Back to Top