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针对集成生物圈模拟器IBIS未考虑高分辨率模拟情况下地表起伏对太阳辐射等参数影响的特点,改进了IBIS的地表太阳辐射计算模块、日气象数据读取模块,并增加了坡度、坡向数据读取模块。在土地利用覆被数据、DEM、坡度、坡向和降水、气温、云量、湿度、风速等气象数据的支持下,利用改进的IBIS分别对泾河及其子流域在0.0415°和0.001°空间尺度上的生态水文过程进行了模拟,并用二源遥感估算的蒸散发对模拟结果进行了空间比较分析。结果表明,改进的IBIS在日、月、年不同时间尺度和不同空间尺度上均具有很好的模拟适应性与模拟能力,模拟蒸散发与二源遥感估算蒸散发结果比较一致,总体空间分布形态和趋势具有相似特征。
In view of the IBIS simulator IBIS does not consider the impact of surface undulation on solar radiation and other parameters under high-resolution simulations, IBIS improved the surface solar radiation calculation module and daily meteorological data read module and added the slope and aspect data Read the module. With the support of meteorological data of land use cover data, DEM, slope, aspect and precipitation, temperature, cloud cover, humidity, wind speed and so on, the improved IBIS was applied to the Jinghe River and its subbasins in 0.0415 ° and 0.001 ° The scale of the eco-hydrological process was simulated, and the evapotranspiration estimated by two-source remote sensing was used to make a comparative analysis of the simulation results. The results show that the improved IBIS has good simulative adaptability and simulation ability on different timescales and different spatial scales of Japan, the month and the year. The evapotranspiration estimated by simulated evapotranspiration and two-source remote sensing are consistent, and the overall spatial distribution pattern And trends have similar characteristics.