Data analysis of snow water equivalent for test watershed in the Colorado River Basin in 2009

This resource includes the data analysis code and results using a subset of the model simulation of snow water equivalent for the watershed of Dolores River above McPhee reservoir in the Colorado River Basin from 1988 to 2010. The model used is the Utah Energy Balance model which is a physically based snow melt model.

The data analysis code used NetCDF Operator commands (http://nco.sourceforge.net). It first subsets the data from January to May, 2009 to identify the maximum snow water equivalent for each grid cell within this period and write the result to a new NetCDF file (max.nc). It then subsets the data for April 1st and 15th, 2009 (april_1.nc, april_15.nc) and evaluates the snow water equivalent difference between the two dates to create a new NetCDF file (diff.nc). This provides the analysis result for accumulation (increase) or ablation (decrease) during this period. Water managers often track such snow water equivalent changes in water supply forecasts

本资源包含了利用科罗拉多河流域麦克皮湖以上多洛雷斯河流域的1988年至2010年间积雪水量等效模型子集进行数据分析和结果的数据分析代码。所采用的模型为犹他能量平衡模型，该模型是一种基于物理的雪融模型。数据分析代码使用了NetCDF操作命令（http://nco.sourceforge.net）。首先，从2009年1月至5月对数据进行子集处理，以识别该期间每个网格单元的最大积雪水量等效值，并将结果写入新的NetCDF文件（max.nc）。随后，对2009年4月1日和15日的数据进行子集处理（april_1.nc、april_15.nc），并评估两个日期之间的积雪水量等效差值，以创建新的NetCDF文件（diff.nc）。这为该期间积雪水量（积累）或消融（减少）的分析结果提供了依据。水资源管理者通常在供水预测中追踪此类积雪水量等效变化。