LINCOLN – an algorithm for filtering daily NDVI MODIS data and deriving the start of the season

Logo poskytovatele

Varování

Publikace nespadá pod Pedagogickou fakultu, ale pod Přírodovědeckou fakultu. Oficiální stránka publikace je na webu muni.cz.
Autoři

BOHOVIC Roman BÁLEK Jan HLAVINKA Petr TADESSE Tsegaye SEMERÁDOVÁ Daniela BALEK J. TADESSE T. HAYES M. WARDLOW B. TRNKA M.

Rok publikování 2015
Druh Článek ve sborníku
Konference Global Change: A Complex Challenge
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www https://www.researchgate.net/publication/306012052_LINCOLN_-_an_algorithm_for_filtering_daily_NDVI_MODIS_data_and_deriving_the_start_of_the_season
Klíčová slova SATELLITE SENSOR DATA; TIME-SERIES
Popis Monitoring drought has become an important tool for farmers and agriculture decision makers. This has increased efforts to create a monitoring system using satellite data that could provide an independent and current source of real information on vegetation condition. The aim of this study was to develop an algorithm for processing Normalized Difference Vegetation Index (NDVI) data from the Moderate Resolution Imaging Spectroradiometer. A software utility called LINCOLN was developed for this purpose. Its filtering output was further processed to yield a start of the season (SOS) metric. Different settings of the utility were tested and correlated to such phenological ground observations as the emergence of spring barley and the beginning of leaf sheath elongation in winter wheat. There was higher correlation observed in the case of winter wheat, probably due to its weaker dependence on crop sowing date. The matrix of coefficients of determination was applied to determine the optimal settings for the LINCOLN filter. The optimal absolute threshold NDVI value for SOS was set to 4,500.
Související projekty:

Používáte starou verzi internetového prohlížeče. Doporučujeme aktualizovat Váš prohlížeč na nejnovější verzi.