Assessment of the short-term radiometric stability between Terra MODIS and Landsat 7 ETM+ sensors

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Abstract

Short-term radiometric stability was evaluated using continuous ETM+ scenes within a single orbit (contact period) and the corresponding MODIS scenes for the four matching solar reflective visible and near-infrared (VNIR) band pairs between the two sensors. The near-simultaneous earth observations were limited by the smaller swath size of ETM+ (183 km) compared to MODIS (2330 km). Two sets of continuous granules for Terra MODIS and Landsat 7 ETM+ were selected and mosaicked based on pixel geolocation information for noncloudy pixels over the African continent. The matching pixel pairs were resampled from a fine to a coarse pixel resolution, and the at-sensor spectral radiance values for a wide dynamic range of the sensors were compared and analyzed, covering various surface types. The following study focuses on radiometric stability analysis from the VNIR band-pairs of ETM+ and MODIS. The Libya-4 desert target was included in the path of this continuous orbit, which served as a verification point between the short-term and the long-term trending results from previous studies. MODTRAN at-sensor spectral radiance simulation is included for a representative desert surface type to evaluate the consistency of the results.

Additional publication details

Publication type Conference Paper
Publication Subtype Conference Paper
Title Assessment of the short-term radiometric stability between Terra MODIS and Landsat 7 ETM+ sensors
DOI 10.1109/IGARSS.2009.5417501
Volume 4
Year Published 2009
Language English
Publisher IEEE Xplore
Description 4 p.
Larger Work Type Conference Paper
Larger Work Title Geoscience and Remote Sensing Symposium, 2009 IEEE International, IGARSS 2009
First page 813
Last page 816
Conference Title Geoscience and Remote Sensing Symposium, 2009 IEEE International, IGARSS 2009
Conference Location Cape Town, South Africa
Conference Date July 12-17, 2009
Online Only (Y/N) N
Additional Online Files (Y/N) N