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Soil Line Influences on Two-Band Vegetation Indices and Vegetation Isolines: A Numerical Study
Department of Information Science and Technology, Aichi Prefectural University, 1522-3 Kumabari, Nagakute, Aichi 480-1198, Japan
Department of Natural Resources and Environmental Management, College of Tropical Agriculture and Human Resources, University of Hawaii at Manoa, 1910 East-West Road, Honolulu, HI 96822, USA
Department of Soil Science, University of São Paulo, Av. Pádua Dias, 11, Piracicaba, São Paulo, Brazil
Natural Resources Conservation Service, USDA, 355 East Hancock Avenue, Athens, GA 30601, USA
Department of Soil, Water and Environmental Science, University of Arizona, 1177 East Fourth Street, Tucson, AZ 85721, USA
* Author to whom correspondence should be addressed.
Received: 16 December 2009; in revised form: 20 January 2010 / Accepted: 2 February 2010 / Published: 12 February 2010
Abstract: Influences of soil line variations on two-band vegetation indices (VIs) and their vegetation isolines in red and near-infrared (NIR) reflectance space are investigated based on recently derived relationships between the relative variations of VIs with variations of the soil line parameters in the accompanying paper by Yoshioka et al. . The soil line influences are first demonstrated numerically in terms of variations of vegetation isolines and VI values along with the isolines. A hypothetical case is then analyzed by assuming the discrepancies between the general and regional soil lines for a Southern Brazil area reported elsewhere. The results indicate the validity of our analytical approach for the evaluation of soil line influences and the applicability for adjustment of VI errors using external data sources of soil reflectance spectra.
Keywords: spectral vegetation index; soil noise; soil line; vegetation isoline
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Yoshioka, H.; Miura, T.; Demattê, J.A.M.; Batchily, K.; Huete, A.R. Soil Line Influences on Two-Band Vegetation Indices and Vegetation Isolines: A Numerical Study. Remote Sens. 2010, 2, 545-561.
Yoshioka H, Miura T, Demattê JAM, Batchily K, Huete AR. Soil Line Influences on Two-Band Vegetation Indices and Vegetation Isolines: A Numerical Study. Remote Sensing. 2010; 2(2):545-561.
Yoshioka, Hiroki; Miura, Tomoaki; Demattê, José A. M.; Batchily, Karim; Huete, Alfredo R. 2010. "Soil Line Influences on Two-Band Vegetation Indices and Vegetation Isolines: A Numerical Study." Remote Sens. 2, no. 2: 545-561.