Study of a Method for Extracting LAI Time-Series Patterns for the Estimation of Crop Phenology

Naoyuki HASHIMOTO; Masayasu MAKI; Kenji TANAKA; Masayuki TAMURA

doi:10.11440/rssj.29.381

Papers

Study of a Method for Extracting LAI Time-Series Patterns for the Estimation of Crop Phenology

Naoyuki HASHIMOTO, Masayasu MAKI, Kenji TANAKA, Masayuki TAMURA

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Keywords: leaf area index, crop phenology, radiative transfer model, vegetation index, matched-filter method

JOURNAL FREE ACCESS

2009 Volume 29 Issue 2 Pages 381-391

DOI https://doi.org/10.11440/rssj.29.381

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Abstract

The estimation of crop phenology is necessary to grasp the water use of irrigated farmlands. To estimate the crop phenology, time-series patterns of Leaf Area Index (LAI) are considered effective. A method is proposed for extracting LAI time-series patterns by calculating the difference between vegetation coverage estimated in visible bands and visible + near-infrared bands. The method proved to be more suitable for the estimation of LAI time-series patterns than conventional vegetation indices.

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