TY - CONF AU - Angal, A. AU - Xiong, X. AU - Choi, T.J. AU - Chander, Gyanesh AU - Wu, A. A2 - San Diego, Calif. ED - Goldberg, M.D. ED - Bloom, H.J. ED - in PY - 2009// TI - Using the Sonoran Desert test site to monitor the long-term radiometric stability of the Landsat TM/ETM+ and Terra MODIS sensors T2 - article number 745601 BT - Atmospheric and Environmental Remote Sensing Data Processing and Utilization V-Readiness for GEOSS III VL - Proceedings of SPIE Vol. 7456 PB - Society of Photo-Optical Instrumentation Engineers (SPIE) CY - Bellingham, Wash. KW - band KW - bands KW - bidirectional reflectance KW - bidirectional reflectance distribution function KW - BRDF KW - calibration KW - characterization KW - collaboration KW - conference papers KW - data KW - data processing KW - desert KW - distribution function KW - Earth KW - earth resources KW - Earth Resources Observation and Science KW - Enhanced Thematic Mapper Plus KW - EROS KW - geometry KW - impact KW - instrument KW - Landsat KW - Landsat 5 KW - Landsat 7 KW - Moderate Resolution Imaging Spectroradiometer (MODIS) KW - MODIS KW - monitoring KW - NASA KW - National Aeronautics and Space Administration (NASA) KW - pseudo-invariant KW - radiometric KW - radiometric calibration KW - reflectance KW - remote sensing KW - resources KW - sensor KW - spectral band KW - temporal KW - Terra KW - Terra MODIS KW - test site KW - Thematic Mapper (TM) KW - Thematic Mapper/Enhanced Thematic Mapper Plus KW - TM KW - TOA KW - U.S.Geological Survey (USGS) KW - USGS KW - viewing geometry N2 - Pseudo-invariant ground targets have been extensively used to monitor the long-term radiometric calibration stability of remote sensing instruments. The NASA MODIS Characterization Support Team (MCST), in collaboration with members from the U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center, has previously demonstrated the use of pseudo-invariant ground sites for the long-term stability monitoring of Terra MODIS and Landsat 7 ETM+ sensors. This paper focuses on the results derived from observations made over the Sonoran Desert. Additionally, Landsat 5 TM data over the Sonoran Desert site were used to evaluate the temporal stability of this site. Top-ofatmosphere (TOA) reflectances were computed for the closely matched TM, ETM+, and MODIS spectral bands over selected regions of interest. The impacts due to different viewing geometries, or the effect of test site Bi-directional Reflectance Distribution Function (BRDF), are also presented. SN - http://dx.doi.org/10.1117/12.825075 UR - http://dx.doi.org/10.1117/12.825075 N1 - exported from refbase (http://eros.usgs.gov/refbase/show.php?record=23869), last updated on Fri, 21 Sep 2012 12:00:11 -0500 ID - Angal_etal2009 ER -