eng UTF8 dataset NOAA National Centers for Environmental Information (NCEI) NOAA National Centers for Environmental Information (NCEI) https://www.ncei.noaa.gov WWW:LINK web browser information pointOfContact 2026-05-20 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) 3 column 1385 0.0416666648291439 row 596 0.04166666880375197 temporal 31 86400.0 area nClimGrid-Daily Supplement: USACE Custom Uncertainty Indicator 2022-09-02T09:51:59.616297 creation 2022-09-02T09:51:59.617404 revision NOAA National Centers for Environmental Information (NCEI) NOAA National Centers for Environmental Information (NCEI) https://www.ncei.noaa.gov WWW:LINK web browser information originator This file is part of a custom-made supplement to NCEI's nClimGrid-Daily product and contains one month of daily gridded fields of observation counts for daily maximum and minimum temperature as well as daily precipitation. It is intended to be used in conjunction with the corresponding temperature and precipitation fields of nClimGrid-Daily. The count at each gridpoint is the number of input observations that were located within 30 miles of that gridpoint and represents a measure of observation density, one of the factors influencing the accuracy of the corresponding temperature and precipitation estimates in nClimGrid-Daily. Low observation density (a small count) frequently yields less accurate estimates than a dense set of observations (a high count), provided that other relevant factors such as topography and gradients in the variable itself are equal. This supplement was custom produced at NCEI for the U.S. Army Corps of Engineers (USACE) and has the same grid resolution and period of record, 1951-present, with one NetCDF file per month. The radius of 30 miles was chosen merely as a convenient proxy for the actual radius of influence around a gridpoint which varies among gridpoints, days, and variables. NOAA National Centers for Environmental Information (NCEI) NOAA National Centers for Environmental Information (NCEI) https://www.ncei.noaa.gov WWW:LINK web browser information pointOfContact Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Maximum/Minimum Temperature > 24 Hour Maximum Temperature Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Maximum/Minimum Temperature > 24 Hour Minimum Temperature Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature > Air Temperature Earth Science > Atmosphere > Precipitation > Precipitation Amount > 24 Hour Precipitation Amount> Sensor Counts theme NASA Global Change Master Directory (GCMD) Earth Science Keywords NOAA National Centers for Environmental Information (NCEI) dataCenter max_temp_obs_count min_temp_obs_count precip_obs_count time latitude longitude theme Standard Name Table v72 no restrictions eng climatologyMeteorologyAtmosphere 1 -124.6875 -67.02084 24.5625 49.35417 seconds 1976-12-01T00:00:00Z 1976-12-31T00:00:00Z cntx short Count of maximum temperature observations within 30 miles of each gridpoint (max_temp_obs_count) cntn short Count of minimum temperature observations within 30 miles of each gridpoint (min_temp_obs_count) cntp short Count of precipitation observations within 30 miles of each gridpoint (precip_obs_count) time int Time, in daily increments (time) lat float Latitude (latitude) lon float Longitude (longitude) NOAA National Centers for Environmental Information (NCEI) https://www.ncei.noaa.gov WWW:LINK web browser URL for the data publisher This URL provides contact information for the publisher of this dataset information publisher OPeNDAP This record was translated from NcML using UnidataDD2MI.xsl Version 2.3.4. (2026-05-20T04:17:51.518Z)