PRISM_DATASET_FILENAME: cai_vpdmin_us_us_30s_200001.bil, cai_vpdmin_us_us_30s_200002.bil, cai_vpdmin_us_us_30s_200003.bil, cai_vpdmin_us_us_30s_200004.bil, cai_vpdmin_us_us_30s_200005.bil, cai_vpdmin_us_us_30s_200006.bil, cai_vpdmin_us_us_30s_200007.bil, cai_vpdmin_us_us_30s_200008.bil, cai_vpdmin_us_us_30s_200009.bil, cai_vpdmin_us_us_30s_200010.bil, cai_vpdmin_us_us_30s_200011.bil, cai_vpdmin_us_us_30s_200012.bil
PRISM_DATASET_CREATE_DATE: 20191006, 20191006, 20191006, 20191006, 20191006, 20191006, 20191006, 20191006, 20191006, 20191006, 20191006, 20190817
PRISM_DATASET_TYPE: an81/r1812
PRISM_DATASET_VERSION: M1
PRISM_CODE_VERSION: 16.1-20180525-1024
PRISM_DATASET_REMARKS: This grid was developed in three steps:  (1) vapor pressure deficit 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_FILENAME, on the date(s) listed under PRISM_CREATE_DATE; (2) these twelve 800-m grids were upscaled to 2.5-arc-minute (~4-km) resolution with a Gaussian filter; and (3) the resulting twelve 4-km grids were averaged to obtain a 4-km annual grid.
