| タイトル | Preliminary assessment of soil moisture over vegetation |
| 本文（外部サイト） | http://hdl.handle.net/2060/19860018232 |
| 著者（英） | Carlson, T. N. |
| 著者所属（英） | Pennsylvania State Univ. |
| 発行日 | 1986-07-01 |
| 言語 | eng |
| 内容記述 | Modeling of surface energy fluxes was combined with in-situ measurement of surface parameters, specifically the surface sensible heat flux and the substrate soil moisture. A vegetation component was incorporated in the atmospheric/substrate model and subsequently showed that fluxes over vegetation can be very much different than those over bare soil for a given surface-air temperature difference. The temperature signatures measured by a satellite or airborne radiometer should be interpreted in conjunction with surface measurements of modeled parameters. Paradoxically, analyses of the large-scale distribution of soil moisture availability shows that there is a very high correlation between antecedent precipitation and inferred surface moisture availability, even when no specific vegetation parameterization is used in the boundary layer model. Preparatory work was begun in streamlining the present boundary layer model, developing better algorithms for relating surface temperatures to substrate moisture, preparing for participation in the French HAPEX experiment, and analyzing aircraft microwave and radiometric surface temperature data for the 1983 French Beauce experiments. |
| NASA分類 | EARTH RESOURCES AND REMOTE SENSING |
| レポートNO | 86N27704
NASA-CR-177226
NAS 1.26:177226 |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/153869 |
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