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黑河流域高分辨率地下水埋深、土壤湿度、蒸散发模拟数据(1981-2013)

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中国科技资源共享网2026-06-08 更新2026-02-07 收录
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https://escience.org.cn/metadata/detail?cstrId=CSTR:18406.11.Hydro.tpdc.270888&id=da0e21dd01bcbea6d33bd0c6ce9c2c33:Hydro.tpdc.270888
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该套数据是新发展的陆面生态水文模式CLM_LTF的模拟结果。该模式在NCAR发展的陆面过程模式CLM4.5之上,耦合了地下水侧向流动模块,并且考虑了人类灌溉作用。 模式运行时间是1981-2013年,空间分辨率为30弧秒(0.0083度),时间步长为1800秒,模拟范围为黑河流域。1981-2012年大气强迫使用的是由中国科学院青藏高原研究所青藏高原多圈层数据同化与模拟中心开发的中国区域高时空分辨率地面气象要素驱动数据集,2013年大气强迫使用的是国家气象信息中心制作的高分辨率的风压湿温降水辐射数据集。地表覆盖数据为MICLCover黑河流域1公里土地覆盖格网数据集,灌溉数据见寒区旱区科学数据中心“黑河流域1981-2013年30弧秒分辨率月尺度地表水及地下水灌溉量数据集”。模式输出为月平均数据。 文件说明如下: 地下水埋深数据:Heihe_ZWT.nc 2cm土壤湿度数据:Heihe_H2OSOI_2CM.nc 100cm 土壤湿度数据:Heihe_H2OSOI_100CM.nc 蒸散发数据:Heihe_evaptanspiration.nc 数据为netcdf格式。有3个维度,依次为month, lat, lon. 其中month为月份,数值为0-395,代表1981-2013年逐个月份,lat为网格纬度信息,lon为网格经度信息。 数据储存在data变量中,地下水埋深数据单位为m, 土壤湿度数据单位为m^3/m^3, 蒸散发数据单位为mm/month

This dataset is the simulation output of the newly developed land surface eco-hydrological model CLM_LTF. This model is built upon the Community Land Model CLM4.5 developed by the National Center for Atmospheric Research (NCAR), coupled with a groundwater lateral flow module and incorporating anthropogenic irrigation effects. The model was run from 1981 to 2013, with a spatial resolution of 30 arc-seconds (0.0083°), a time step of 1800 seconds, and the simulation domain covers the Heihe River Basin. For atmospheric forcing during 1981–2012, the high spatiotemporal resolution ground meteorological forcing dataset for China developed by the Tibetan Plateau Multi-sphere Data Assimilation and Simulation Center, Institute of Tibetan Plateau Research, Chinese Academy of Sciences was used; for 2013, the high-resolution wind, pressure, humidity, temperature, precipitation and radiation forcing dataset produced by the National Meteorological Information Center was adopted. Land cover data is the MICLCover 1 km land cover grid dataset for the Heihe River Basin. Irrigation data refers to the "Monthly-scale surface and groundwater irrigation dataset for the Heihe River Basin (1981–2013, 30 arc-seconds resolution)" from the Cold and Arid Regions Science Data Center. The model outputs are monthly averaged data. File descriptions are as follows: - Groundwater table depth data: Heihe_ZWT.nc - 2 cm soil moisture data: Heihe_H2OSOI_2CM.nc - 100 cm soil moisture data: Heihe_H2OSOI_100CM.nc - Evapotranspiration data: Heihe_evaptanspiration.nc All data are stored in NetCDF format, with three dimensions in order: month, lat, and lon. Specifically, the month dimension ranges from 0 to 395, corresponding to each individual month from 1981 to 2013; lat represents the grid latitude information, and lon represents the grid longitude information. The data are stored in the `data` variable. The unit of groundwater table depth data is m, the unit of soil moisture data is m³/m³, and the unit of evapotranspiration data is mm/month.
提供机构:
国家青藏高原科学数据中心
创建时间:
2021-04-07
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