TY - JOUR
T1 - Radiometric calibration of earth-Observing sensors using an automated test site at Railroad Valley, Nevada
AU - Czapla-Myers, Jeffrey S.
AU - Thome, Kurtis J.
AU - Leisso, Nathan P.
N1 - Funding Information:
The authors would like to acknowledge the US Bureau of Land Management Tonopah, Nevada, office for their assistance in obtaining access to Railroad Valley. We would also like to thank the many participants who have worked on the instrumentation and data collection used in the RadCaTS work. This research is supported by NASA cooperative agreement NNX08AC55A.
PY - 2010/10
Y1 - 2010/10
N2 - The Remote Sensing Group (RSG) at the University of Arizona uses the reflectance-based approach to radiometrically calibrate airborne and spaceborne sensors in the solar-reflective regime. The Radiometric Calibration Test Site (RadCaTS) concept was developed in 2004 to increase the amount of ground-based data collected. RadCaTS provides a methodology to determine the surface reflectance for any arbitrary test site in the absence of ground personnel. It is founded on the reflectance-based approach and has successfully operated at Railroad Valley, Nevada, with a suite of instruments including nadir-viewing multispectral radiometers, a Cimel sun photometer, and a meteorological station. RadCaTS data are currently used by RSG to supplement those collected by on-site personnel. This work presents a description of the RadCaTS automated concept, including the process used to determine surface reflectance and top-ofatmosphere (TOA) spectral radiance. The instrumentation required to measure the surface and atmosphere is introduced, followed by discussions regarding their placement on the 1 km2 site at Railroad Valley and their calibration. Lastly, the RadCaTS results are compared with those obtained from the Landsat7 Enhanced ThematicMapper Plus (ETM+) and Terra Moderate Resolution Imaging Spectrometer (MODIS). The average percent difference in TOA spectral radiance is 4.1% between the six bands of ETM+ and RadCaTS and 3.6% between the seven land bands of Terra MODIS and RadCaTS.
AB - The Remote Sensing Group (RSG) at the University of Arizona uses the reflectance-based approach to radiometrically calibrate airborne and spaceborne sensors in the solar-reflective regime. The Radiometric Calibration Test Site (RadCaTS) concept was developed in 2004 to increase the amount of ground-based data collected. RadCaTS provides a methodology to determine the surface reflectance for any arbitrary test site in the absence of ground personnel. It is founded on the reflectance-based approach and has successfully operated at Railroad Valley, Nevada, with a suite of instruments including nadir-viewing multispectral radiometers, a Cimel sun photometer, and a meteorological station. RadCaTS data are currently used by RSG to supplement those collected by on-site personnel. This work presents a description of the RadCaTS automated concept, including the process used to determine surface reflectance and top-ofatmosphere (TOA) spectral radiance. The instrumentation required to measure the surface and atmosphere is introduced, followed by discussions regarding their placement on the 1 km2 site at Railroad Valley and their calibration. Lastly, the RadCaTS results are compared with those obtained from the Landsat7 Enhanced ThematicMapper Plus (ETM+) and Terra Moderate Resolution Imaging Spectrometer (MODIS). The average percent difference in TOA spectral radiance is 4.1% between the six bands of ETM+ and RadCaTS and 3.6% between the seven land bands of Terra MODIS and RadCaTS.
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U2 - 10.5589/m10-076
DO - 10.5589/m10-076
M3 - Article
AN - SCOPUS:79958851830
SN - 0703-8992
VL - 36
SP - 474
EP - 487
JO - Canadian Journal of Remote Sensing
JF - Canadian Journal of Remote Sensing
IS - 5
ER -