On the relation of vegetation and southwest monsoon rainfall over Western Ghats, India

被引：0

作者：

T. V. Lakshmi Kumar

Koteswara Rao

R. Uma

Humberto Barbosa

K. V. K. R. K. Patnaik

Emily Prabha Jothi

机构：

[1] SRM University,Atmospheric Science Research Laboratory, Department of Physics, Faculty of Engineering and Technology

[2] Civil Aviation Authority of Qatar,Climate Section, Department of Meteorology

[3] Laboratório de Análise e Processamento de Imagens de Satélites-LAPIS,undefined

[4] Instituto de Ciências Atmosféricas-ICAT,undefined

[5] Universidade Federal de Alagoas,undefined

[6] UFAL,undefined

[7] Indian Maritime University,undefined

[8] Karnataka State Natural Disaster Monitoring Centre,undefined

来源：

Natural Hazards | 2016年 / 84卷

关键词：

NDVI; API; Monsoon; Western Ghats; MODIS TERRA;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

This article presents the tendency of the normalized difference vegetation index (NDVI) and the dependence of vegetation on the rainfall and number of rainy and non-rainy days over Western Ghats. The study makes use of MODIS Terra NDVI data with 8-day intervals and 250-m resolution from 2000 to 2010 during the southwest monsoon (June to September) season. The results show an increasing tendency of the NDVI over different test sites in Western Ghats. The relation of the NDVI with the Antecedent Precipitation Index obtained from rainfall showed good agreement, and the relation of rainfall and the NDVI was mainly dependent on the available soil moisture levels and elevations of the test sites. Correlations were significant and positive with the number of rainy days and negative with the number of non-rainy days with a nearly 2-month lag.

引用

页码：425 / 436

页数：11

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