PRISM_CREATE_DATE: 20130810
PRISM_DATASET: an81/r1308
PRISM_VERSION: 13.1-20130717-1308
PRISM_REMARKS: This grid was developed in three 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_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 summed to obtain a 4-km annual precipitation grid.
PRISM_FILENAME: cai_ppt_us_us_30s_198401.bil, cai_ppt_us_us_30s_198402.bil, cai_ppt_us_us_30s_198403.bil, cai_ppt_us_us_30s_198404.bil, cai_ppt_us_us_30s_198405.bil, cai_ppt_us_us_30s_198406.bil, cai_ppt_us_us_30s_198407.bil, cai_ppt_us_us_30s_198408.bil, cai_ppt_us_us_30s_198409.bil, cai_ppt_us_us_30s_198410.bil, cai_ppt_us_us_30s_198411.bil, cai_ppt_us_us_30s_198412.bil
