DATA ASSIMILATION OF REMOTELY SENSED SOIL MOISTURE TO DETECT WATER STRESS PERIODS IN AGRICULTURAL AREAS

Héctor Ernesto Huerta-Batiz, Daniel Enrique Constantino-Recillas, Alejandro Monsiváis-Huertero, Ramón Sidonio Aparicio-García, Eduardo Arizmendi-Vasconcelos, José Carlos Jiménez-Escalona, Cira Francisca Zambrano-Gallardo, Jasmeet Judge

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this study, a data assimilation framework based on the Ensemble Kalman Filter was implemented including a soil-vegetation-atmosphere energy transfer (SVAT) model. The SVAT model has been calibrated with in-situ data in the central region of Mexico, with temperate subhumid climate. The soil moisture information from ten locations was scaled within a 36km satellite pixel. Both synthetic observations and SMAP SM retrieval were assimilated and they improved by 29% compared to open-loop simulations. Particularly, the assimilated soil moisture allows us to have a better characterization of periods of water stress for corn cultivation.

Original languageEnglish
Title of host publicationIGARSS 2021 - 2021 IEEE International Geoscience and Remote Sensing Symposium, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1331-1334
Number of pages4
ISBN (Electronic)9781665403696
DOIs
StatePublished - 2021
Event2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021 - Brussels, Belgium
Duration: 12 Jul 202116 Jul 2021

Publication series

NameInternational Geoscience and Remote Sensing Symposium (IGARSS)
Volume2021-July

Conference

Conference2021 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021
Country/TerritoryBelgium
CityBrussels
Period12/07/2116/07/21

Keywords

  • Data assimilation
  • EnKF
  • In-situ campaign
  • SMAP
  • SVAT
  • Soil moisture
  • THEx-Mex

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