Station Information
Network Overview
Utah's Climate Reference Network (UCRN) is a collection of 16 automated weather stations providing measurements of air temperature, relative humidity, solar radiation, wind and precipitation in near real time. The website also provides hourly and daily summary data tables and graphical displays.
UCRN was acquired from the National Oceanic and Atmospheric Administration's USRCRN program in 2015 https://www.ncdc.noaa.gov/crn/usrcrn/. These stations, commissioned from 2009 to 2011 were designed to measure highly accurate air temperatures and precipitation. Stations are in pristine locations that have stable land ownership and are geographically distributed to best determine decadal to centurial temperature and precipitation trends for Utah. Since the transfer of ownership to the Utah Climate Center, each station's sensor suite has been enhanced to include measurements of wind, solar radiation and water vapor. Cooperating partners in this retrofit endeavor include the National Weather Service in Salt Lake City and Apogee Instruments in Logan, UT.
UCRN temperature and precipitation data formats and integrity are consistent with USRCRN historical data. USRCRN data for these stations will be added in the near future.
Output Table Frequency
- Current condition (5-minutes)
- Hourly Summary
- Daily Summary
What is Measured
Air Temperature:
Four platinum resistance thermometers housed in an aspirated radiation shield
Relative Humidity:
Capacitive polymer chip sensor housed in an aspirated radiation shield
Solar Radiation:
Heated silicon chip pyranometer
Precipitation:
A 3-sensor heated inlet weighing precipitation gauge with a 2-row alter shield and heated wetness sensor.
Wind:
A 4-blade propeller and vane sensor
*see table for sensor specifics [use the sensor table from the metadata excel file]
Current Condition (5-minute)
| Variable | Units | Statistic Type | Description |
| datint | num | num | observation interval |
| netname | character | character | UCC network name |
| site | character | character | station location |
| siteID | num | num | station ID |
| timestamp | datetime | datetime | date and time (MST) |
| PRT1 | °C | Avg | average air temperature from PRT1 in MetOne aspirated shield |
| PRT2 | °C | Avg | average air temperature from PRT2 in MetOne aspirated shield |
| PRT3 | °C | Avg | average air temperature from PRT3 in MetOne aspirated shield |
| AirTPRT | °C | Avg | average air temperature from selected PRT in Met One shield |
| EE8 | °C | Avg | average air temperature from EE8 probe |
| RH | % | Smp | sampled relative humidity from EE probe |
| Td | °C | Avg | average dew point temperature from EE8 |
| VW_Avg1 | frequency | Avg | last 1-minute average of vibrating wire1 |
| VW_Avg2 | frequency | Avg | last 1-minute average of vibrating wire2 |
| VW_Avg3 | frequency | Avg | last 1-minute average of vibrating wire3 |
| mm1 | mm | Avg | last 1-minute average of accumulated precipitation from vibrating wire1 |
| mm2 | mm | Avg | last 1-minute average of accumulated precipitation from vibrating wire2 |
| mm3 | mm | Avg | last 1-minute average of accumulated precipitation from vibrating wire3 |
| Precip_accum | mm | Tot | accumulated precipitation (running total) |
| Precip5Min | mm | Tot | precip in last 5-minutes |
| wet1 | mV | Min | minimum measurement from wetness sensor output 1 (on/off) |
| precip inten | mV | Min | minimum measurement from wetness sensor output 2 (intensity) |
| wetness | % | Tot | percent of 5 minutes wetness sensor is wet |
| Solar | W/m^2 | Avg | average incoming (short wave) radiation from pyronometer |
| WindS | m/s | Avg | average wind speed |
| WindD | degrees | Avg | average wind direction |
| WindS_Max | m/s | Max | maximum wind speed |
| FANSP1 | rpm | Avg | average speed of MetOne fan 1 |
| FANSP2 | rpm | Avg | average speed of MetOne fan 2 |
| site_pressure | kPa | average | pressure |
| sealevel_pressure | kPa | average | sea level corrected pressure |
Hourly
| Variable | Units | Statistic Type | Description |
| datint | num | num | observation interval |
| netname | num | num | UCC network name |
| site | num | num | station location |
| siteID | num | num | station ID |
| timestamp | datetime | datetime | date and time (MST) |
| AirT | °C | Avg | average air temperature from PRTs in Met One shield |
| AirT_Mx | °C | Max | maximum 5 minute air temperature from PRTs in Met One shield |
| AirT_Mn | °C | Min | minimum 5 minute air temperature from PRTs in Met One shield |
| RH_Mx | % | Max | maximum relative humidity from RH sensor in Met One shield |
| RH_Mn | % | Min | mininum relative humidity from RH sensor in Met One shield |
| Td | °C | Avg | average dew point temperature from RH sensor in Met One shield |
| Td_Mx | °C | Max | maximum 5 minute dew point temperature from RH sensor in Met One shield |
| Td_Mn | °C | Min | minimum 5 minute dew point temperature from RH sensor in Met One shield |
| Solar | MJ/m^2 | Tot | total incoming (short wave) radiation from pyronometer |
| WindS | m/s | Avg | average wind speed |
| WindD | degrees | Avg | average wind direction |
| WindS_Mx | m/s | Max | maximum wind gust |
| wetness | % | Tot | percentage of the hour that wetness sensor detectected precipitation |
| Precip_accum | mm | Tot | accumulated precipitation |
| Precip | mm | Tot | hourly precipitation |
| ETo | mm | Tot | hourly short reference ET from Etsz function |
| ETr | mm | Tot | hourly tall reference ET from Etsz function |
| PRT1_Std | °C | Std | standard deviation from PRT1 |
| PRT2_Std | °C | Std | standard deviation from PRT2 |
| PRT3_Std | °C | Std | standard deviation from PRT3 |
| StdPRT_Avg | °C | Std | standard deviation from 3 PRTs |
| EE8T_Std | °C | Std | standard deviation from EE8 PRT |
| GeonorInletT | °C | Max | maximum temperature of Geonor inlet |
| HeaterTime | % | Tot | percent of time that the Geonor heater was on |
| RefRes | mV | Avg | Average reference resistance |
| DoorTime | % | Tot | percentage of time that the enclosure door was open |
| Rso | MJ/m^2 | Smp | clear sky solar radiation from Etsz utility |
| site_pressure | kPa | average | pressure |
| sealevel_pressure | kPa | average | sea level corrected pressure |
Daily
| Variable | Units | Statistic Type | Description |
| datint | num | num | observation interval |
| netname | num | num | UCC network name |
| site | num | num | station location |
| siteID | num | num | station ID |
| timestamp | datetime | datetime | date and time (MST) |
| AirT | °C | Avg | average air temperature from PRTs in Met One shield |
| AirT_Mx | °C | Max | maximum 5 minute air temperature from PRTs in Met One shield |
| AirT_Mn | °C | Min | minimum 5 minute air temperature from PRTs in Met One shield |
| RH_Mx | % | Max | maximum relative humidity from RH sensor in Met One shield |
| RH_Mn | % | Min | minimum relative humidity from RH sensor in Met One shield |
| Td | °C | Avg | average dew point temperature from RH sensor Met One shield |
| Td_Mx | °C | Max | maximum 5 minute dew point temperature from RH sensor in Met One shield |
| Td_Mn | °C | Min | minimum 5 minute dew point temperature from RH sensor in Met One shield |
| Solar | MJ/m^2 | Tot | total incoming (short wave) radiation from pyronometer |
| WindS | m/s | Avg | average wind speed |
| WindD | degrees | Avg | average wind direction |
| WindS_Mx | m/s | Max | maximum wind gust |
| wetness | % | Tot | percentage of the day that wetness sensor detected precipitation |
| Precip | mm | Tot | daily precipitation |
| ETo | mm | Tot | daily short reference ET from Etsz function |
| ETr | mm | Tot | daily tall reference ET from Etsz function |
| site_pressure | kPa | average | pressure |
| sealevel_pressure | kPa | average | sea level corrected pressure |