PRISM_DATASET_FILENAME: adj_best_ppt_us_us_30s_202401.bil, adj_best_ppt_us_us_30s_202402.bil, adj_best_ppt_us_us_30s_202403.bil, adj_best_ppt_us_us_30s_202404.bil, adj_best_ppt_us_us_30s_202405.bil, adj_best_ppt_us_us_30s_202406.bil, adj_best_ppt_us_us_30s_202407.bil, adj_best_ppt_us_us_30s_202408.bil, adj_best_ppt_us_us_30s_202409.bil, adj_best_ppt_us_us_30s_202410.bil, adj_best_ppt_us_us_30s_202411.bil, adj_best_ppt_us_us_30s_202412.bil
PRISM_DATASET_CREATE_DATE: 20240716, 20240810, 20240915, 20241018, 20241119, 20241216, 20250117, 20250216, 20250318, 20250416, 20250516, 20250614
PRISM_DATASET_TYPE: an91/r2112
PRISM_DATASET_VERSION: M3
PRISM_CODE_VERSION: 16.1-20230816-1307
PRISM_DATASET_REMARKS: This grid was developed in four steps:  (1) precipitation was initially modeled with PRISM at 30-arc-second (~800-m) resolution for each month of the year to produce the source grids listed under PRISM_DATASET_FILENAME, on the date(s) listed under PRISM_DATASET_CREATE_DATE; (2) the source grids were modified as needed to ensure that the sum of the daily grids equaled the monthly modeled grid; (3) these twelve 800-m grids were upscaled to 2.5-arc-minute (~4-km) resolution with a Gaussian filter; and (4) the resulting twelve 4-km grids were summed to obtain a 4-km annual precipitation grid.
