ERA-Interim/Land: a global land surface reanalysis data set
ERA-Interim/Land: a global land surface reanalysis data set
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DOI：
10.5194/hess-19-389-2015
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发表时间：
2015-01-01
影响因子：
6.3
通讯作者：
Vitart, F.
中科院分区：
文献类型：
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作者：
Balsamo, G.;Albergel, C.;Vitart, F.
ERA-TIMAL/LAND是一个涵盖1979-2010年期间的全球陆面再分析数据集。它描述了土壤水分、土壤温度和积雪的演变。ERA-中期/陆地是用最新的ECMWF(欧洲中期天气预报中心)陆地表面模式进行的为期32年的单一模拟的结果，该模式是由ERA-中期大气再分析的气象强迫和基于GPCP v2.1(全球降水气候学项目)的降水量调整驱动的。水平分辨率约为80公里，时频为3小时一次。相对于原始的ERA-临时数据集，ERA-TIMAL/LAND对陆面方案进行了一些参数化改进，使其更适合于涉及陆地水资源的气候研究。通过与地面和遥感观测进行比较，对ERA-临时/土地的质量进行了评估。特别是，对土壤水分、雪深、地表反照率、湍流潜通量和显性通量以及河流流量的估计与大量现场测量结果进行了验证。ERA-TIMAL/LAND提供了对土壤水分和雪水当量的全球综合和连贯估计，也可用于数值天气预报和气候模式的初始化。
ERA-Interim/Land is a global land surface reanalysis data set covering the period 1979-2010. It describes the evolution of soil moisture, soil temperature and snowpack. ERA-Interim/Land is the result of a single 32-year simulation with the latest ECMWF (European Centre for Medium-Range Weather Forecasts) land surface model driven by meteorological forcing from the ERA-Interim atmospheric reanalysis and precipitation adjustments based on monthly GPCP v2.1 (Global Precipitation Climatology Project). The horizontal resolution is about 80 km and the time frequency is 3-hourly. ERA-Interim/Land includes a number of parameterization improvements in the land surface scheme with respect to the original ERA-Interim data set, which makes it more suitable for climate studies involving land water resources. The quality of ERA-Interim/Land is assessed by comparing with ground-based and remote sensing observations. In particular, estimates of soil moisture, snow depth, surface albedo, turbulent latent and sensible fluxes, and river discharges are verified against a large number of site measurements. ERA-Interim/Land provides a global integrated and coherent estimate of soil moisture and snow water equivalent, which can also be used for the initialization of numerical weather prediction and climate models.