Studying recent hydroclimatic variability in Madagascar despite deficient measurement networks: use of CHIRPS and GRACE data at the scale of the Mahajunga province

<p>Given the lack of in situ hydroclimatic measurements and networks in Madagascar, the GRACE (2003–2016) spatial gravimetry data, combined with other satellite data such as CHIRPS rainfall estimates or fire monitoring using GFED products, make it possible to establish an interannual assessmen...

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Autores principales:	S. Bigot, D. Dumas, T. Y. Brou, R. Ramboarison, S. Razanaka, N. Philippon
Formato:	article
Lenguaje:	EN
Publicado:	Copernicus Publications 2021
Materias:	Environmental sciences GE1-350 Geology QE1-996.5
Acceso en línea:	https://doaj.org/article/dbea3127c415437d96e8623f5f46919f
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spelling	oai:doaj.org-article:dbea3127c415437d96e8623f5f46919f2021-11-16T06:50:14ZStudying recent hydroclimatic variability in Madagascar despite deficient measurement networks: use of CHIRPS and GRACE data at the scale of the Mahajunga province10.5194/piahs-384-43-20212199-89812199-899Xhttps://doaj.org/article/dbea3127c415437d96e8623f5f46919f2021-11-01T00:00:00Zhttps://piahs.copernicus.org/articles/384/43/2021/piahs-384-43-2021.pdfhttps://doaj.org/toc/2199-8981https://doaj.org/toc/2199-899X<p>Given the lack of in situ hydroclimatic measurements and networks in Madagascar, the GRACE (2003–2016) spatial gravimetry data, combined with other satellite data such as CHIRPS rainfall estimates or fire monitoring using GFED products, make it possible to establish an interannual assessment of certain climatic and environmental covariations at the northwest scale of the country. The results show a negative trend in continental rainfall and water content, especially after 2007, but also a time lag in the linear variations and trends of the Water Equivalent Height as well as the number of detected fires (variable indirectly measuring the pressure of deforestation by slash and burn agriculture).</p>S. BigotD. DumasT. Y. BrouR. RamboarisonS. RazanakaN. PhilipponCopernicus PublicationsarticleEnvironmental sciencesGE1-350GeologyQE1-996.5ENProceedings of the International Association of Hydrological Sciences, Vol 384, Pp 43-48 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Environmental sciences GE1-350 Geology QE1-996.5
spellingShingle	Environmental sciences GE1-350 Geology QE1-996.5 S. Bigot D. Dumas T. Y. Brou R. Ramboarison S. Razanaka N. Philippon Studying recent hydroclimatic variability in Madagascar despite deficient measurement networks: use of CHIRPS and GRACE data at the scale of the Mahajunga province
description	<p>Given the lack of in situ hydroclimatic measurements and networks in Madagascar, the GRACE (2003–2016) spatial gravimetry data, combined with other satellite data such as CHIRPS rainfall estimates or fire monitoring using GFED products, make it possible to establish an interannual assessment of certain climatic and environmental covariations at the northwest scale of the country. The results show a negative trend in continental rainfall and water content, especially after 2007, but also a time lag in the linear variations and trends of the Water Equivalent Height as well as the number of detected fires (variable indirectly measuring the pressure of deforestation by slash and burn agriculture).</p>
format	article
author	S. Bigot D. Dumas T. Y. Brou R. Ramboarison S. Razanaka N. Philippon
author_facet	S. Bigot D. Dumas T. Y. Brou R. Ramboarison S. Razanaka N. Philippon
author_sort	S. Bigot
title	Studying recent hydroclimatic variability in Madagascar despite deficient measurement networks: use of CHIRPS and GRACE data at the scale of the Mahajunga province
title_short	Studying recent hydroclimatic variability in Madagascar despite deficient measurement networks: use of CHIRPS and GRACE data at the scale of the Mahajunga province
title_full	Studying recent hydroclimatic variability in Madagascar despite deficient measurement networks: use of CHIRPS and GRACE data at the scale of the Mahajunga province
title_fullStr	Studying recent hydroclimatic variability in Madagascar despite deficient measurement networks: use of CHIRPS and GRACE data at the scale of the Mahajunga province
title_full_unstemmed	Studying recent hydroclimatic variability in Madagascar despite deficient measurement networks: use of CHIRPS and GRACE data at the scale of the Mahajunga province
title_sort	studying recent hydroclimatic variability in madagascar despite deficient measurement networks: use of chirps and grace data at the scale of the mahajunga province
publisher	Copernicus Publications
publishDate	2021
url	https://doaj.org/article/dbea3127c415437d96e8623f5f46919f
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Studying recent hydroclimatic variability in Madagascar despite deficient measurement networks: use of CHIRPS and GRACE data at the scale of the Mahajunga province

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