NLDAS VIC Land Surface Model L4 Monthly Climatology 0.125 x 0.125 degree V002 (NLDAS_VIC0125_MC) at GES DISC

Abstract: This data set contains a series of land surface parameters simulated from the VIC land-surface model (LSM) for Phase 2 of the North American Land Data Assimilation System (NLDAS-2). The data are in 1/8th degree grid spacing. The temporal resolution is monthly, ranging from January to December. The file format is WMO GRIB-1. The NLDAS-2 monthly climatology data are the monthly data averaged over the thirty years (1980-2009) of the NLDAS-2 monthly data.

A brief description about the NLDAS-2 hourly and monthly VIC LSM data can be found from the GCMD DIFs for GES_DISC_NLDAS_VIC0125_H_V002 and GES_DISC_NLDAS_VIC0125_M_V002.

Details about the NLDAS-2 configuration of the VIC LSM can be found in Xia et al. (2012). The version of the VIC model for the NLDAS-2 VIC data available from the NASA GES DISC is VIC-4.0.3; this version of the VIC model is the same as used in Sheffield et al. (2003).

The NLDAS-2 VIC monthly climatology data contain forty-three fields. The data set applies a user-defined parameter table to indicate the contents and parameter number. The GRIBTAB file shows a list of parameters for this data set, along with their Product Definition Section (PDS) IDs and units.

For information about the vertical layers of the Soil Moisture Content (PDS 086), Soil Temperature (PDS 085), and Liquid Soil Moisture Content (PDS 151), please see the README Document or the GrADS ctl file.

摘要：本数据集包含了由北美洲陆地数据同化系统第二阶段（NLDAS-2）的VIC陆地表面模型（LSM）模拟的一系列陆地表面参数。数据以八分之一度网格间距呈现。时间分辨率为月度，涵盖从一月至十二月的全年数据。文件格式为WMO GRIB-1。NLDAS-2月度气候数据为NLDAS-2月度数据在三十年（1980-2009年）期间的平均值。关于NLDAS-2小时和月度VIC LSM数据的简要描述，可从GCMD DIFs中的GES_DISC_NLDAS_VIC0125_H_V002和GES_DISC_NLDAS_VIC0125_M_V002获取。关于VIC LSM的NLDAS-2配置详情，可参考Xia等人（2012）的研究。可供NASA GES DISC获取的NLDAS-2 VIC数据所采用的VIC模型版本为VIC-4.0.3；此版本的VIC模型与Sheffield等人（2003）所使用的一致。NLDAS-2 VIC月度气候数据包含四十三项字段。数据集应用用户定义的参数表来指示内容及其参数编号。GRIBTAB文件显示了该数据集的参数列表，以及它们的定义部分（PDS）标识符和单位。有关土壤水分含量（PDS 086）、土壤温度（PDS 085）和液态土壤水分含量（PDS 151）的垂直层信息，请参阅README文档或GrADS ctl文件。