Modelling forest decline using SMOS soil moisture and vegetation optical depth

D. Chaparro, M. Piles, J. Martínez-Vilalta, M. Vall-Llossera, J. Vayreda, M. Banqué-Casanovas, A. Camps

Research output: Contribution to journalArticleResearchpeer-review

1 Citation (Scopus)

Abstract

Global change is increasing the risk of forest decline worldwide, impacting carbon and water cycles. Hence, there is an urgent need for predicting forest decline occurrence. To that purpose, this study links forest decline events in Catalonia, detected by the DEBOSCAT forest monitoring program, with information from the Soil Moisture and Ocean Salinity (SMOS) satellite. Firstly, this study reviews the role of the SMOS soil moisture in a previous forest decline episode occurred in 2012, where the authors concluded that dry soils increased the probability of observing decline in broadleaved forests. Secondly, the present study detects that forest decline in 2012 and 2016 was linked to very dry soil conditions (generally with SM<0.06 m 3 ·m -3 ). A similar analysis is proposed using SMOS Vegetation Optical Depth (VOD) data, which is a proxy of vegetation hydric status. Results and preliminary models will be presented at IGARSS 2018.

Original languageEnglish
Pages (from-to)1459-1462
Number of pages4
JournalInternational Geoscience and Remote Sensing Symposium (IGARSS)
DOIs
Publication statusPublished - 31 Oct 2018

Keywords

  • Climate Change
  • Forest Decline
  • SMOS
  • Soil Moisture
  • Vegetation Optical Depth

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