Received date: 2006-10-23
Revised date: 2006-10-23
Online published: 2006-12-15
Sensible and latent heat fluxes from the plateau surface are of great importance in the Asian monsoon system. Since the plateau occupies a wide area and the environmental conditions are severe to perform surface observation, the satellite remote sensing is inevitably a practical tool to estimate these fluxes from whole plateau surface. The in situ flux estimation is, however, necessary as a ground truth for the satellite remote sensing. It also gives scientific information in constructing land surface-atmosphere model, which shares an important part of data assimilation system using satellite data. There are several different approaches in estimating in situ heat fluxes. The simplest method uses operational observation and experimental parameters, and it gives steady continuous estimation. The more sophisticated Bowen ratio or profile observation gives the more precise information. The estimation with turbulence measurement together with the measurement of radiation and soil heat fluxes give detailed description of land surfaceatmosphere interaction suitable to model development. Since 1998, a combination of these methods has been applied to the Tibetan plateau. The efforts of these in situ flux observation and the current understandings are summarized in this presentation.
H. Ishikawa , Y. Oku , MA Wei-qiang4 , LI Mao-shan4 , HU Ze-yong4 , MA Yao-ming , K. Tanaka . Surface Flux Estimation Using in Situ Measurement[J]. Advances in Earth Science, 2006 , 21(12) : 1237 -1243 . DOI: 10.11867/j.issn.1001-8166.2006.12.1237
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