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Evaluation of the MOD16A2 evapotranspiration product in an agricultural area of Argentina, the Pampas region

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Evaluation of the MOD16A2 evapotranspiration product in an agricultural area of Argentina, the Pampas region

dc.contributor.author	Degano, María Florencia
dc.contributor.author	Rivas, Raúl
dc.contributor.author	Carmona, Facundo
dc.contributor.author	Niclòs Corts, Raquel
dc.contributor.author	Sánchez Tomás, Juan Manuel
dc.date.accessioned	2021-04-21T13:59:09Z
dc.date.available	2021-04-21T13:59:09Z
dc.date.issued	2021
dc.identifier.citation	Degano, María Florencia Rivas, Raúl Carmona, Facundo Niclòs Corts, Raquel Sánchez Tomás, Juan Manuel 2021 Evaluation of the MOD16A2 evapotranspiration product in an agricultural area of Argentina, the Pampas region Egyptian Journal of Remote Sensing and Space Science 24 2 319 328
dc.identifier.uri	https://hdl.handle.net/10550/78870
dc.description.abstract	The Pampas Region is a big plain of approximately 520,000 km2 in Argentina. It is essential to estimate evapotranspiration (ET) in this region since the primary productivity is directly linked to water availability. Information provided by satellite missions allows monitoring the spatial and temporal variability of ET. In the current study, we evaluated the version 006 of MOD16A2 product (MOD16A2.006) of Potential Evapotranspiration (ETp) and Actual Evapotranspiration (ETa) in Argentinian Pampas Region (APR). MOD16A2.006 product was compared with Crop Evapotranspiration (ETc), calculated with local measurements from the Oficina de Riesgo Agropecuario (ORA), and Crop Coefficient (Kc) data (function of Normalized Difference Vegetation Index (NDVI)) in seven stations in the APR from 2009 to 2018. We evaluated ETa at two temporal scales: accumulated values (mm) per growth stages (soybean crop), and 8-day accumulated values (mm8d−1). The results showed a systematic overestimation around 65% for ETp(MOD16A2.006) (found and eliminated by means of a linear function) and underestimation (in most stations) for ETa(MOD16A2.006) in accumulated values per growth stages. Respect to mm8d−1, no systematic error was observed, but the relationship ETa(ORA) − ETa(MOD16A2.006) for soybean crop behaves similarly throughout APR.
dc.language.iso	eng
dc.relation.ispartof	Egyptian Journal of Remote Sensing and Space Science, 2021, vol. 24, num. 2, p. 319-328
dc.subject	Teledetecció
dc.subject	Hidrologia
dc.subject	Aigua
dc.title	Evaluation of the MOD16A2 evapotranspiration product in an agricultural area of Argentina, the Pampas region
dc.type	journal article	es_ES
dc.date.updated	2021-04-21T13:59:10Z
dc.identifier.doi	10.1016/j.ejrs.2020.08.004
dc.identifier.idgrec	145453
dc.rights.accessRights	open access	es_ES