Spectral compatibility of vegetation indices across sensors: band decomposition analysis with Hyperion data

Youngwook Kim; Alfredo R. Huete; Tomoaki Miura; Zhangyan Jiang

doi:10.1117/1.3400635

1 March 2010 Spectral compatibility of vegetation indices across sensors: band decomposition analysis with Hyperion data

Youngwook Kim, Alfredo R. Huete, Tomoaki Miura, Zhangyan Jiang

Author Affiliations +

Journal of Applied Remote Sensing, Vol. 4, Issue 1, 043520 (March 2010). https://doi.org/10.1117/1.3400635

Abstract

Vegetation indices (VIs) are widely used in long-term measurement studies of vegetation changes, including seasonal vegetation activity and interannual vegetation-climate interactions. There is much interest in developing cross-sensor/multi-mission vegetation products that can be extended to future sensors while maintaining continuity with present and past sensors. In this study we investigated multi-sensor spectral bandpass dependencies of the enhanced vegetation index (EVI), a 2-band EVI (EVI2), and the normalized difference vegetation index (NDVI) using spectrally convolved Earth Observing-1 (EO-1) Hyperion satellite images acquired over a range of vegetation conditions. Two types of analysis were carried out, including (1) empirical relationships among sensor reflectances and VIs and (2) decomposition of bandpass contributions to observed cross-sensor VI differences. VI differences were a function of cross-sensor bandpass disparities and the integrative manner in which bandpass differences in red, near-infrared (NIR), and blue reflectances combined to influence a VI. Disparities in blue bandpasses were the primary cause of EVI differences between the Moderate Resolution Imaging Spectroradiometer (MODIS) and other course resolution sensors, including the upcoming Visible Infrared Imager / Radiometer Suite (VIIRS). The highest compatibility was between VIIRS and MODIS EVI2 while AVHRR NDVI and EVI2 were the least compatible to MODIS.

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Youngwook Kim, Alfredo R. Huete, Tomoaki Miura, and Zhangyan Jiang "Spectral compatibility of vegetation indices across sensors: band decomposition analysis with Hyperion data," Journal of Applied Remote Sensing 4(1), 043520 (1 March 2010). https://doi.org/10.1117/1.3400635

Published: 1 March 2010

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