Optimal Spatial Resolution of Sentinel-1 Surface Soil Moisture Evaluated Using Intensive in Situ Observations

Theresa C. van Hateren, Marco Chini, Patrick Matgen, Luca Pulvirenti, Nazzareno Pierdicca, Adriaan J. Teuling

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

2 Citations (Scopus)

Abstract

Space-borne SAR instruments can provide backscatter on a high spatial resolution, and with the introduction of the Sentinel-1 satellites, these can co-exist with relatively high temporal resolutions. Here, we use a combination of active microwave Sentinel-1 and optical Sentinel-2 data in the MULESME algorithm to estimate soil moisture on a field in Southeastern Luxembourg. Satellite data were compared to data gathered in the field and semi-continuous measurements from a nearby permanent station. Our results indicate that the accuracy of MULESME soil moisture estimates increases with a decrease in spatial resolution, but that this increase stagnates rather soon after the first few spatial aggregations, thus confirming the value of high resolution data. Future endeavours will focus on the analysis of soil moisture variation in time, compared to soil moisture measurements from a nearby permanent station.
Original languageEnglish
Title of host publication2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS
PublisherIEEE
Pages6311-6314
Number of pages4
ISBN (Electronic)9781665403696
ISBN (Print)9781665447621
DOIs
Publication statusPublished - 12 Oct 2021
Event2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS - Brussels, Belgium
Duration: 11 Jul 202116 Jul 2021

Publication series

NameInternational Symposium on Geoscience and Remote Sensing
ISSN (Print)2153-6996
ISSN (Electronic)2153-7003

Conference

Conference2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS
Period11/07/2116/07/21

Keywords

  • Microwave measurement
  • Satellite constellations
  • Uncertainty
  • Satellites
  • Soil measurements
  • Moisture measurement
  • Soil moisture

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