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. 2022 Jun 17;9:326. doi: 10.1038/s41597-022-01405-3

Table 3.

Description of variables available in the heatmetrics database.

Variable Name (Short) Variable Name (Long) Description / Format Units
StCoFIPS State-county Federal Information Processing Standard (FIPS) Identifier Unique county identifier: concatenation of two-digit state identifier and three-digit county identifier N/A
Date Date Local day in the format YYYYMMDD N/A
Tmin_C Daily Minimum Ambient Temperature Lowest 2-meter ambient temperature observed from hourly data from 00 LST to 23 LST °C
Tmax_C Daily Maximum Ambient Temperature Highest 2-meter ambient temperature observed from hourly data from 00 LST to 23 LST °C
Tmean_C Daily Mean Ambient Temperature 2-meter ambient temperature averaged over hourly observations from 00 LST to 23 LST °C
TDmin_C Daily Minimum Dew Point Temperature Lowest dew point temperature observed from hourly data from 00 LST to 23 LST °C
TDmax_C Daily Maximum Dew Point Temperature Highest dew point temperature observed from hourly data from 00 LST to 23 LST °C
TDmean_C Daily Mean Dew Point Temperature Dew point temperature averaged over hourly observations from 00 LST to 23 LST °C
NETmin_C Daily Minimum Net Effective Temperature Lowest net effective temperature observed from hourly data from 00 LST to 23 LST °C
NETmax_C Daily Maximum Net Effective Temperature Highest net effective temperature observed from hourly data from 00 LST to 23 LST °C
NETmean_C Daily Mean Net Effective Temperature Net effective temperature averaged over hourly observations from 00 LST to 23 LST °C
HImin_C Daily Minimum Heat Index Lowest heat index observed from hourly data from 00 LST to 23 LST °C
HImax_C Daily Maximum Heat Index Highest heat index observed from hourly data from 00 LST to 23 LST °C
HImean_C Daily Mean Heat Index Heat index averaged over hourly observations from 00 LST to 23 LST °C
HXmin_C Daily Minimum Humidex Lowest humidex observed from hourly data from 00 LST to 23 LST °C
HXmax_C Daily Maximum Humidex Highest humidex observed from hourly data from 00 LST to 23 LST °C
HXmean_C Daily Mean Humidex Humidex averaged over hourly observations from 00 LST to 23 LST °C
WBGTmin_C Daily Minimum Wet-Bulb Globe Temperature Lowest wet-bulb globe temperature (WBGT) observed from hourly data from 00 LST to 23 LST °C
WBGTmax_C Daily Maximum Wet-Bulb Globe Temperature Highest wet-bulb globe temperature (WBGT) observed from hourly data from 00 LST to 23 LST °C
WBGTmean_C Daily Mean Wet-Bulb Globe Temperature Wet-bulb globe temperature (WBGT) averaged over hourly observations from 00 LST to 23 LST °C
UTCImin_C Daily Minimum Universal Thermal Climate Index Lowest Universal Thermal Climate Index (UTCI) observed from hourly data from 00 LST to 23 LST °C
UTCImax_C Daily Maximum Universal Thermal Climate Index Highest Universal Thermal Climate Index (UTCI) observed from hourly data from 00 LST to 23 LST °C
UTCImean_C Daily Mean Universal Thermal Climate Index Universal Thermal Climate Index (UTCI) averaged over hourly data from 00 LST to 23 LST °C
Flag_T Ambient temperature flag Indicator of the percent of county population represented by the county-day ambient temperature estimate. 0: ≥50%, 1: 10–49%, 2: <10%, 3: 0% (NA) N/A
Flag_TD Dew point temperature flag Indicator of the percent of county population represented by the county-day dew point temperature estimate. 0: ≥50%, 1: 10–49%, 2: <10%, 3: 0% (NA) N/A
Flag_NET Net effective temperature flag Indicator of the percent of county population represented by the county-day net effective temperature estimate. 0: ≥50%, 1: 10–49%, 2: <10%, 3: 0% (NA) N/A
Flag_HI Heat index flag Indicator of the percent of county population represented by the county-day heat index estimate. 0: ≥50%, 1: 10–49%, 2: <10%, 3: 0% (NA) N/A
Flag_HX Humidex flag Indicator of the percent of county population represented by the county-day humidex estimate. 0: ≥50%, 1: 10–49%, 2: <10%, 3: 0% (NA) N/A
Flag_WBGT Wet-bulb globe temperature flag Indicator of the percent of county population represented by the county-day WBGT estimate. 0: ≥50%, 1: 10–49%, 2: <10%, 3: 0% (NA) N/A
Flag_UTCI Universal Thermal Climate Index flag Indicator of the percent of county population represented by the county-day UTCI estimate. 0: ≥50%, 1: 10–49%, 2: <10%, 3: 0% (NA) N/A