On measuring and remote sensing surface energy partitioning over the Tibetan Plateau

Y. Ma, Z. Su, T. Koike, T. Yao, H. Ishikawa, K. Ueno, M. Menenti

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Abstract

The energy and water cycle over the Tibetan Plateau play an important role in the Asian monsoon system, which in turn is a major component of both the energy and water cycles of the global climate system. The intensive observation period and long-term observation of the GEWEX (global energy and water cycle experiment) Asian monsoon experiment on the Tibetan Plateau (GAME/Tibet) and CEOP (coordinated enhanced observing period) Asia¿Australia monsoon project (CAMP) on the Tibetan Plateau (CAMP/Tibet) have been done successfully in the past five years. A large amount of data has been collected, which is the best data set so far for the study of energy and water cycle over the Tibetan Plateau. The field experiments of GAME/Tibet and CAMP/Tibet are introduced and some results on the local surface energy partitioning (imbalance, diurnal variation, inter-monthly variation and inter-yearly variation etc.) are presented by using the field observational data in this study. The study on the regional surface energy partitioning is of paramount importance over heterogeneous landscape of the Tibetan Plateau and it is also one of the main scientific objectives of GAME/Tibet and CAMP/Tibet. Therefore, the regional distributions of surface variables (surface reflectance and surface temperature), vegetation variables (NDVI, MSAVI, vegetation coverage and LAI) and surface heat fluxes (net radiation flux, soil heat flux, sensible and latent heat flux) are also derived by combining NOAA-14 AVHRR data with field observations in this study.
Original languageEnglish
Pages (from-to)63-74
JournalPhysics and Chemistry of the Earth
Issue number1-3
DOIs
Publication statusPublished - 2003

Keywords

  • soil heat-flux
  • heterogeneous landscape
  • net-radiation
  • vegetation
  • parameters
  • emissivity
  • canopy
  • avhrr
  • heife
  • index

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