Multi-annual data products on turbulent heat fluxes at the local and continental scale using AATSR and fy-2 data

M. Menenti, H. Ghafarian, B. Tang, R. Faivre, J. Colin, L. Jia, L. Roupioz

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

This paper summarizes the results of studies carried in the framework of the Dragon 2 Program - Project 5322 Key Eco-Hydrological Parameters Retrieval and Land Data Assimilation System Development in a Typical Inland River Basin of Chinas Arid Region. The investigations were focused on monitoring the fluxes of energy and water at the land-atmosphere interface across a range of spatial scales, using multi-spectral radiometric data collected by space-borne imaging radiometers. At the local scale a new approach to parameterize heat and vapour fluxes was developed and applied using Computational Fluid Dynamics to describe state and dynamics of the boundary layer over the heterogeneous and 3D structured land surface. An airborne scanning LIDAR was used to capture in detail surface geometry. Over the large area of the Qinghai-Tibet Plateau a land-atmospheric model was used to characterize the atmospheric Planetary Boundary Layer. The effect of land surface heterogeneity and structure on the exchange of heat and water was captured using the bi-angular observations of brightness temperature provided by the AATSR imaging radiometer. The heat and water flux densities were calculated hourly with Feng-Yun C, D and E VISSR data over the Qinghai-Tibet Plateau and the headwaters of main rivers around it.

Original languageEnglish
JournalEuropean Space Agency, (Special Publication) ESA SP
Volume704 SP
Publication statusPublished - 2013
EventDragon 2 Final Results and Dragon 3 Kick-Off Symposium - Beijing, China
Duration: 25 Jun 201229 Jun 2012

Keywords

  • Aatsr
  • Land surface evaporation
  • Lidar
  • Mesoscale atmospheric model
  • Optical remote sensing
  • Surface energy balance

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