"本数据为中国科学院寒区旱区环境与工程研究所,那曲高寒气候环境观测研究站,BL边界层塔观测数据。站点经纬度:31.37N,91.90E。;海拔高度:4509米。观测时间间隔:10分钟。观测要素:3m的风速风向;红外地温;5cm、10cm的土壤温度、土壤体积含水量和土壤热通量。命名规则:风速(WS,m/s);风向(WD,);红外地温(Tg,℃);土壤温度(Ts,℃);土壤体积含水量(SWC,%);土壤热通量(SHF,W/m^2)。采集频率为10min。
采集时间 | 2011/03/17 - 2011/12/31 |
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采集地点 | 那曲 |
数据量 | 11.2 MiB |
坐标系 | WGS84 |
自动采集
数据完整,数据质量整体良好。
# | 标题 | 文件大小 |
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1 | desktop.ini | 83 Bytes |
2 | 西藏那曲2011年局地环流南站观测数据_10Min.xls | 11.2 MiB |
# | 时间 | 姓名 | 用途 |
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1 | 2020/08/31 01:03 | 文*航 |
论文题目:Comparative Analysis of water-energy cycle processes Based on HRADC data over Different Underlying Surfaces in Qinghai-Tibet Plateau
论文摘要:We used a High-Resolution Assimilation Dataset of the water-energy cycle in China (HRADC) to study the land-atmosphere interactions and meteorological characteristics in inhomogeneous underlying surface of the Qinghai-Tibet Plateau (QTP). Three different underlying surfaces (i.e., grassland, open shrubland, and barren or sparsely vegetated) of the QTP are selected and the meteorological elements on each underlying surface grid are averaged. We compared and analyzed the Green Vegetation Fraction (GVF), precipitation, soil moisture and soil temperature, and energy fluxes for three different land-use types in QTP. The results showed that the vegetation coverage of HRADC showed a gradual decrease trend from southeast to northwest throughout the Qinghai-Tibet Plateau. The GVF of the grassland in the southeast can reach more than 60% in summer, and only about 20% in sparse vegetation areas. HRADC can well reproduce the seasonal change trend of soil temperature and soil moisture in different underlying surfaces. The annual variation trend of soil temperature shows that the time of the deep soil temperature reaching the peak value lags behind the shallow layer. The annual averaged soil moisture over grassland is higher than that of open shrubland and barren land, which is consistent with the plateau precipitation distribution. The peak value of sensible heat flux over grassland is only 80 W·m-2 in April, and the latent heat flux can reach 90 W·m-2, and the net radiation of the barren land can reach 210 W·m-2 in July. This study is important to discover the water-energy cycle characteristics of QTP.
论文类型:期刊论文
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