Observational evidence of irrigation influence on vegetation health and land surface temperature in India

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dc.contributor.author Ambika, Anukesh Krishnankutty
dc.contributor.author Mishra, Vimal
dc.date.accessioned 2019-11-01T12:49:19Z
dc.date.available 2019-11-01T12:49:19Z
dc.date.issued 2019-10
dc.identifier.citation Ambika, Anukesh Krishnankutty and Mishra, Vimal, �Observational evidence of irrigation influence on vegetation health and land surface temperature in India�, Geophysical Research Letters, DOI: 10.1029/2019GL084367, Oct. 2019. en_US
dc.identifier.issn 0094-8276
dc.identifier.issn 1944-8007
dc.identifier.uri https://doi.org/10.1029/2019GL084367
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/4921
dc.description.abstract Irrigated area in India has significantly increased after the green revolution. However, quantification of irrigation influence on vegetation health and land surface temperature (LST) remains limited. Here, we develop a high?resolution (250m) remotely sensed data of enhanced vegetation index (EVI) and LST from Moderate Resolution Imaging Spectroradiometer (MODIS) for 2000?2017 at the 8?day temporal resolution for India to quantify the role of irrigation in the modulation of EVI, LST, and vegetation health. We show that irrigation dominated regions have significantly (p?value < 0.05) higher EVI and cooler (1?2 K) LST during the crop?growing season in the Indo?Gangetic Plain. Vegetation health in highly irrigated areas is poorly correlated with meteorological drought primarily due to irrigation. Moreover, vegetation health is negatively correlated with groundwater storage anomalies in the highly irrigated Indo?Gangetic Plain. Irrigation in Indo?Gangetic Plain modulated EVI, LST, and vegetation health and resulted in groundwater depletion during 2002?2016.
dc.description.statementofresponsibility by Anukesh Krishnankutty Ambika and Vimal Mishra
dc.language.iso en_US en_US
dc.publisher Wiley en_US
dc.title Observational evidence of irrigation influence on vegetation health and land surface temperature in India en_US
dc.type Article en_US
dc.relation.journal Geophysical Research Letters


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