InSAR constraints on soil moisture evolution after the March 2015 extreme precipitation event in Chile

Abstarct Constraints on soil moisture can guide agricultural practices, act as input into weather, flooding and climate models and inform water resource policies. Space-based interferometric synthetic aperture radar (InSAR) observations provide near-global coverage, even in the presence of clouds, o...

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Autores principales:	C. P. Scott, R. B. Lohman, T. E. Jordan
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c6f80365c645459ca6d18cdab2c9600b
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spelling	oai:doaj.org-article:c6f80365c645459ca6d18cdab2c9600b2021-12-02T12:30:54ZInSAR constraints on soil moisture evolution after the March 2015 extreme precipitation event in Chile10.1038/s41598-017-05123-42045-2322https://doaj.org/article/c6f80365c645459ca6d18cdab2c9600b2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-05123-4https://doaj.org/toc/2045-2322Abstarct Constraints on soil moisture can guide agricultural practices, act as input into weather, flooding and climate models and inform water resource policies. Space-based interferometric synthetic aperture radar (InSAR) observations provide near-global coverage, even in the presence of clouds, of proxies for soil moisture derived from the amplitude and phase content of radar imagery. We describe results from a 1.5 year-long InSAR time series spanning the March, 2015 extreme precipitation event in the hyperarid Atacama desert of Chile, constraining the immediate increase in soil moisture and drying out over the following months, as well as the response to a later, smaller precipitation event. The inferred temporal evolution of soil moisture is remarkably consistent between independent, overlapping SAR tracks covering a region ~100 km in extent. The unusually large rain event, combined with the extensive spatial and temporal coverage of the SAR dataset, present an unprecedented opportunity to image the time-evolution of soil characteristics over different surface types. Constraints on the timescale of shallow water storage after precipitation events are increasingly valuable as global water resources continue to be stretched to their limits and communities continue to develop in flood-prone areas.C. P. ScottR. B. LohmanT. E. JordanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q C. P. Scott R. B. Lohman T. E. Jordan InSAR constraints on soil moisture evolution after the March 2015 extreme precipitation event in Chile
description	Abstarct Constraints on soil moisture can guide agricultural practices, act as input into weather, flooding and climate models and inform water resource policies. Space-based interferometric synthetic aperture radar (InSAR) observations provide near-global coverage, even in the presence of clouds, of proxies for soil moisture derived from the amplitude and phase content of radar imagery. We describe results from a 1.5 year-long InSAR time series spanning the March, 2015 extreme precipitation event in the hyperarid Atacama desert of Chile, constraining the immediate increase in soil moisture and drying out over the following months, as well as the response to a later, smaller precipitation event. The inferred temporal evolution of soil moisture is remarkably consistent between independent, overlapping SAR tracks covering a region ~100 km in extent. The unusually large rain event, combined with the extensive spatial and temporal coverage of the SAR dataset, present an unprecedented opportunity to image the time-evolution of soil characteristics over different surface types. Constraints on the timescale of shallow water storage after precipitation events are increasingly valuable as global water resources continue to be stretched to their limits and communities continue to develop in flood-prone areas.
format	article
author	C. P. Scott R. B. Lohman T. E. Jordan
author_facet	C. P. Scott R. B. Lohman T. E. Jordan
author_sort	C. P. Scott
title	InSAR constraints on soil moisture evolution after the March 2015 extreme precipitation event in Chile
title_short	InSAR constraints on soil moisture evolution after the March 2015 extreme precipitation event in Chile
title_full	InSAR constraints on soil moisture evolution after the March 2015 extreme precipitation event in Chile
title_fullStr	InSAR constraints on soil moisture evolution after the March 2015 extreme precipitation event in Chile
title_full_unstemmed	InSAR constraints on soil moisture evolution after the March 2015 extreme precipitation event in Chile
title_sort	insar constraints on soil moisture evolution after the march 2015 extreme precipitation event in chile
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/c6f80365c645459ca6d18cdab2c9600b
work_keys_str_mv	AT cpscott insarconstraintsonsoilmoistureevolutionafterthemarch2015extremeprecipitationeventinchile AT rblohman insarconstraintsonsoilmoistureevolutionafterthemarch2015extremeprecipitationeventinchile AT tejordan insarconstraintsonsoilmoistureevolutionafterthemarch2015extremeprecipitationeventinchile
_version_	1718394305159102464

InSAR constraints on soil moisture evolution after the March 2015 extreme precipitation event in Chile

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