Recent trends in land surface temperature on the Tibetan Plateau
Recent trends in land surface temperature on the Tibetan Plateau
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DOI：
10.1175/jcli3811.1
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发表时间：
2006-06
影响因子：
4.9
通讯作者：
Y. Oku;H. Ishikawa;S. Haginoya;Yaoming Ma
中科院分区：
文献类型：
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作者：
Y. Oku;H. Ishikawa;S. Haginoya;Yaoming Ma
利用日本静止气象卫星5号(GMS-5)观测的逐时地表温度资料，分析了青藏高原1996~2002年陆地表面温度(LST)的日变化、季节变化和年际变化。将GMS-5反演的LST与独立的降水量资料进行对比分析，发现两者之间存在着一致和互补的关系。结果表明，在这一时期，LST有所增加。日最小值上升的速度快于日最大值，导致LST的日变化范围收窄。这与观测到的全球和高原近地表气温的趋势是一致的。由于近地表气温主要受LST控制，这一结果保证了近地表气温有变暖的趋势。
The diurnal, seasonal, and interannual variations in land surface temperature (LST) on the Tibetan Plateau from 1996 to 2002 are analyzed using the hourly LST dataset obtained by Japanese Geostationary Meteorological Satellite 5 (GMS-5) observations. Comparing LST retrieved from GMS-5 with independent precipitation amount data demonstrates the consistent and complementary relationship between them. The results indicate an increase in the LST over this period. The daily minimum has risen faster than the daily maximum, resulting in a narrowing of the diurnal range of LST. This is in agreement with the observed trends in both global and plateau near-surface air temperature. Since the near-surface air temperature is mainly controlled by LST, this result ensures a warming trend in near-surface air temperature.