Siberian Federal University

Issue

Journal of Siberian Federal University. Engineering & Technologies. 2018 11 (6)

Authors

Botvich, Irina Yu.; Shevyrnogov, Anatoly P.

Contact information

Botvich, Irina Yu.: Institute of Biophysics SB RAS FRC “Krasnoyarsk Science Center SB RAS” 50/50 Akademgorodok, Krasnoyarsk, 660036, Russia; Shevyrnogov, Anatoly P.: Institute of Biophysics SB RAS FRC “Krasnoyarsk Science Center SB RAS” 50/50 Akademgorodok, Krasnoyarsk, 660036, Russia;

Keywords

NDVI; LST; Modis; crop phenology; growing season; remote sensing; Modis data; NDVI; LST

Abstract

To date, many methods have been developed for assessing the state and phenological development of crops using time series of satellite data. Most of them are effective when used ground field measurements. The article presents a new method for determining of the beginning and the end dates of the crops vegetation period. This method is based on a complex analysis of reflective – Normalized Difference Vegetation Index (NDVI) and radiative – Land Surface Temperature (LST) characteristics of vegetation. The features of agrophytocenoses phase portraits in the twodimensional space LST and NDVI are studied. An analysis of the phenological variability of agrophytocenoses during the vegetation periods of 2006, 2016-2017 in the south of the Krasnoyarsk Territory and the Republic of Khakassia has been performed. The distinctive features of phase portraits in space (LST, NDVI) of agrophytocenosis from other vegetation species are revealed. The possibility of determining the time and duration of the phenological states of agrophytocenosis, the features of the transition from one state to another, is shown

Pages

624-634

Paper at repository of SibFU

https://elib.sfu-kras.ru/handle/2311/72113

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).