Quantification of land-atmosphere exchanges of water, energy and carbon dioxide in space and time over the heterogeneous Barrax site

Z. Su, W. Timmermans, A. Gieske, L. Jia, J.A. Elbers, A. Olioso, J. Timmermans, R. van der Velde, X. Jin, H. van der Kwast, F. Nerry, D. Sabol, J.A. Sobrino, J. Moreno, R. Bianchi

Research output: Contribution to journalArticleAcademicpeer-review

32 Citations (Scopus)

Abstract

To advance our understanding of land-atmosphere exchanges of water, energy and carbon dioxide (CO2) in space and time over heterogeneous land surfaces, two intensive field campaigns were carried out at the Barrax agricultural test site in Spain during 12-21 July 2004 (SPARC 2004) and 8-14 July 2005 (SEN2FLEX 2005) involving multiple field, satellite and airborne instruments for characterizing the state of the atmosphere, the vegetation and the soil from the visible to the microwave range of the spectrum. Part of the experimental area is a core site of area 25 km2, within which numerous crops are grown, on both irrigated and dry land, alongside fields of bare soil. The campaigns were carried out in the framework of the Earth Observation Envelope Programme of the European Space Agency (ESA) with the aim of supporting geophysical algorithm development, calibration/validation and the simulation of future spaceborne Earth Observation missions. Both campaigns were also contributions to the EU 6FP EAGLE Project. The emphasis of this contribution is on the in situ measurements of land-atmosphere exchanges of water, energy and CO2 as well as the thermal dynamic states of the atmosphere, the soil and the vegetation. Preliminary analysis and interpretation of the measurements are presented. These two data sets are open to the scientific community for collaborative investigations.
Original languageEnglish
Pages (from-to)5215-5235
JournalInternational Journal of Remote Sensing
Volume29
Issue number17-18
DOIs
Publication statusPublished - 2008

Keywords

  • energy exchange
  • atmosphere
  • land surface
  • water
  • carbon dioxide
  • vegetation
  • measurement
  • atmospheric boundary-layer
  • remote sensing

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