PRISM_DATASET_FILENAME: cai_vpdmin_us_us_30s_201701.bil, cai_vpdmin_us_us_30s_201702.bil, cai_vpdmin_us_us_30s_201703.bil, cai_vpdmin_us_us_30s_201704.bil, cai_vpdmin_us_us_30s_201705.bil, cai_vpdmin_us_us_30s_201706.bil, cai_vpdmin_us_us_30s_201707.bil, cai_vpdmin_us_us_30s_201708.bil, cai_vpdmin_us_us_30s_201709.bil, cai_vpdmin_us_us_30s_201710.bil, cai_vpdmin_us_us_30s_201711.bil, cai_vpdmin_us_us_30s_201712.bil
PRISM_DATASET_CREATE_DATE: 20170729, 20170816, 20170919, 20171021, 20171117, 20171218, 20180116, 20180215, 20180312, 20180416, 20180517, 20180614
PRISM_DATASET_TYPE: an81/r1503
PRISM_DATASET_VERSION: M1
PRISM_CODE_VERSION: 16.1-20170626-1650, 16.1-20170626-1650, 16.1-20170626-1650, 16.1-20171003-1653, 16.1-20171003-1653, 16.1-20171003-1653, 16.1-20171216-1839, 16.1-20171216-1839, 16.1-20171216-1839, 16.1-20171216-1839, 16.1-20171216-1839, 16.1-20171216-1839
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.
