Assessing the use of multiple constraints and ancillary data to support scope model inversion in a experimental grassland

Javier Pacheco-Labrador, Nuno Carvalhais, Oscar Perez-Priego, Tarek S. El-Madany, Micol Rossini, Tommaso Julitta, Gerardo Moreno, Rosario González-Cascón, M. Pilar Martín, Markus Reichstein, Arnaud Carrara, Luis Guanter, Mirco Migliavacca

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The SCOPE model embeds the state of art for coupling soil vegetation atmosphere transfer (SVAT) and radiative transfer models (RTM). For that reason the FLuorescence EXplorer (FLEX) mission selected this model to derive vegetation properties through inversion. However inverse problem is often ill-posed, providing equally likely solutions and hence inflating the uncertainty of the retrieved parameters. In this work we test the use of different priors based on ancillary measurements and literature to support multiple-constrain inversion of SCOPE. Results show that prior information on the relationships between variables such as leaf chlorophyll content (C ab ), leaf carotenoids content (C ca ), leaf water content (C w ) and/or maximum carboxylation rate (V cmax ) reduce inversion uncertainties and overfitting, and should be sampled/estimated together with optical data.

Original languageEnglish
Title of host publication2018 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages5975-5978
Number of pages4
ISBN (Electronic)9781538671504
DOIs
Publication statusPublished - 31 Oct 2018
Event38th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 - Valencia, Spain
Duration: 22 Jul 201827 Jul 2018

Publication series

NameInternational Geoscience and Remote Sensing Symposium (IGARSS)
PublisherInstitute of Electrical and Electronics Engineers Inc.
Volume2018-July
ISSN (Print)2153-6996

Conference

Conference38th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018
CountrySpain
CityValencia
Period22/07/1827/07/18

Keywords

  • Model inversion
  • Plant traits
  • Prior information
  • Radiative transfer
  • SCOPE

Fingerprint Dive into the research topics of 'Assessing the use of multiple constraints and ancillary data to support scope model inversion in a experimental grassland'. Together they form a unique fingerprint.

  • Cite this

    Pacheco-Labrador, J., Carvalhais, N., Perez-Priego, O., El-Madany, T. S., Rossini, M., Julitta, T., ... Migliavacca, M. (2018). Assessing the use of multiple constraints and ancillary data to support scope model inversion in a experimental grassland. In 2018 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018 - Proceedings (pp. 5975-5978). [8518487] (International Geoscience and Remote Sensing Symposium (IGARSS); Vol. 2018-July). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IGARSS.2018.8518487