A novel ArcGIS toolbox that applies the Mapping Evapotranspiration with Internalized Calibration model was developed and tested in a semi-arid environment. The tool, named METRIC-GIS, facilitates the pre-processing operations and the automatic identification of potential calibration and pixels review. The energy balance components obtained from METRIC-GIS were contrasted with those from the original METRIC version (R² = 1; RMSE = 0 W m⁻² or mm day⁻¹ for ET_c) Additionally, an irrigated scheme located at southern Spain was considered for assessing K_c variability in the maize fields with METRIC-GIS. The identified spatial variability was mainly due to differences in irrigation regimes, crop management practices, and planting and harvesting dates. This information is critical for developing irrigation advisory strategies that contribute to the area sustainability. The developed tool facilitates data input introduction and reduces computational time by up to 50%, providing a more user-friendly alternative to other existing platforms that use METRIC.

开发了一种新颖的ArcGIS工具箱，该工具箱将“蒸发蒸腾量与内部化校准”模型应用了起来，并在半干旱环境中进行了测试。名为METRIC-GIS的工具可简化预处理操作，并自动识别潜在的校准和像素检查。从METRIC-GIS获得的能量平衡成分与原始METRIC版本的能量平衡成分进行了对比（R ²  = 1； RMSE = 0 W m ^-2或ET _c的毫米天^-1）。另外，位于西班牙南部的灌溉计划是考虑评估K _cMETRIC-GIS在玉米田中的变异性。确定的空间变异性主要是由于灌溉制度，作物管理实践以及播种和收获日期的差异。这些信息对于制定有助于该地区可持续发展的灌溉咨询策略至关重要。开发的工具可促进数据输入的引入并将计算时间减少多达50％，从而为使用METRIC的其他现有平台提供了更加用户友好的替代方法。