Station Information
Network Overview
The observatory is an enhanced weather station located near the center of the Utah State University campus in Logan, Utah. Built in 2011, it is operated by the Department of Plants, Soils and Climate. The observatory provides continuous real-time weather data for the campus and is an educational resource for students in the environmental sciences. It also serves as the department’s test platform for new, innovative measurement sensors. The station measures more than 20 weather components, including atmospheric visibility and carbon dioxide in the air. Campbell Scientific and Apogee Instruments generously provided much of the technology necessary to make these measurements. See weather.usu.edu for additional station information, links to related resources and real time and graphical data. Please contact us for additional data needs: https://climate.usu.edu/contact.php.
Hourly
| Variable | Units | Statistic Type | Description |
| datint | observation interval | ||
| netname | character | UCC network name | |
| site | character | station location | |
| siteID | numeric | station ID | |
| timestamp | datetime | date and time | |
| Batt_volt_Min | volts | minimum | battery voltage |
| AirT_Avg | °C | average | air temperature |
| AirT_Max | °C | maximum | air temperature |
| AirT_TMx | time | time of maximum | time of maximum air temperature |
| AirT_Min | °C | minimum | air temperature |
| AirT_TMn | time | time of minimum | time of mininum air temperature |
| SolarMJ | MJ/m2 | total | short wave solar radiation |
| WindS_Max | ms | maximum | wind speed |
| WindS_TMx | time | time of maximum | time of wind speed maximum |
| WindS_Avg | ms | average | wind speed |
| WindD_Avg | degrees | average | wind direction |
| WindD_SD | degrees | average | wind direction |
| EA_Avg | kPa | average | vapor pressure |
| RH | % | relative humidity | |
| RH_Max | % | maximum | relative humidity |
| RH_TMx | time | time of maximum | time of maximum relative humidity |
| RH_Min | % | minimum | relative humidity |
| RH_TMn | time | time of mininum | time of mininum relative humidity |
| Td_Avg | °C | average | dew point temperature |
| Td_Max | °C | maximum | dew point temperature |
| Td_TMx | time | time of maximum | time of maximum dew point temperature |
| Td_Min | °C | minimum | dew point temperature |
| Td_TMn | time | time of mininum | time of mininum dew point temperature |
| ETo | mm | total | grass reference evapotranspiration |
| ETr | mm | total | alfalfa refrence evapotranspiration |
| wet_pct | % | total | surface wetness replicate 1 |
| Precip | mm | total | precipitation |
| Rso | MJ | total | Clear sky solar radiation |
| NetRad_Avg | w/m2 | total | net radiation |
| PPF_Avg | unmol m-2 | average | photosynthetically active radiation |
| SWUp_Avg | w/m2 | average | incoming shortwave radiation |
| SWDn_Avg | w/m2 | average | reflected shortwave radiation |
| LWUp_Avg | w/m2 | average | incoming longwave radiation |
| LWDn_Avg | w/m2 | average | reflected longwave radiation |
| pressure | kPa | sampled | atmospheric pressure |
| pressurekPasealevel | kPa | sampled | atmospheric pressure corrected to sea level |
| CO2_Avg | ppm | average | atmospheric CO2 concentration |
| SurfaceT1_Avg | °C | average | canopy temperature replicate 1 |
| SurfaceT2_Avg | °C | average | canopy temperature replicate 2 |
| visibilitykm | km | sampled | atmospheric visibility |
| visibilitykm_Avg | km | average | mean atmospheric visibility |
| fan_RMP_Avg | rpm | average | aspirated fan speed |
Daily
| Variable | Units | Statistic Type | Description |
| datint | observation interval | ||
| netname | character | UCC network name | |
| site | character | station location | |
| siteID | numeric | station ID | |
| timestamp | datetime | date and time | |
| AirT_Avg | °C | average | air temperature |
| AirT_Max | °C | maximum | air temperature |
| AirT_TMx | time | time of maximum | time of maximum air temperature |
| AirT_Min | °C | minimum | air temperature |
| AirT_TMn | time | time of minimum | time of mininum air temperature |
| SolarMJ | MJ/m2 | total | short wave solar radiation |
| WindS_Max | ms | maximum | wind speed |
| WindS_TMx | time | time of maximum | time of wind speed maximum |
| WindS_Avg | ms | average | wind speed |
| WindD_Avg | degrees | average | wind direction |
| WindD_SD | degrees | average | wind direction |
| EA_Avg | kPa | average | vapor pressure |
| RH_Max | % | maximum | relative humidity |
| RH_TMx | time | time of maximum | time of maximum relative humidity |
| RH_Min | % | minimum | relative humidity |
| RH_TMn | time | time of mininum | time of mininum relative humidity |
| Td_Avg | °C | average | dew point temperature |
| Td_Max | °C | maximum | dew point temperature |
| Td_TMx | time | time of maximum | time of maximum dew point temperature |
| Td_Min | °C | minimum | dew point temperature |
| Td_TMn | time | time of mininum | time of mininum dew point temperature |
| ETo | mm | total | grass reference evapotranspiration |
| ETr | mm | total | alfalfa refrence evapotranspiration |
| wet_pct | % | total | surface wetness replicate 1 |
| Precip | mm | total | precipitation |
| NetRad_Avg | w/m2 | total | net radiation |
| PPF_Avg | unmol m-2 | average | photosynthetically active radiation |
| SWUp_Avg | w/m2 | average | incoming shortwave radiation |
| SWDn_Avg | w/m2 | average | reflected shortwave radiation |
| LWUp_Avg | w/m2 | average | incoming longwave radiation |
| LWDn_Avg | w/m2 | average | reflected longwave radiation |
| pressure | kPa | sampled | atmospheric pressure |
| pressurekPasealevel | kPa | sampled | atmospheric pressure corrected to sea level |
| CO2_Avg | ppm | average | atmospheric CO2 concentration |
| SurfaceT1_Avg | °C | average | canopy temperature replicate 1 |
| SurfaceT2_Avg | °C | average | canopy temperature replicate 2 |
| visibilitykm | km | sampled | atmospheric visibility |
| visibilitykm_Avg | km | average | mean atmospheric visibility |