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LTER Weather Station - Raw Hourly Weather
Raw hourly observations from the LTER weather station. These data are not checked.
The standard data use policy applies to the this datasetContext:
Meteorological data have been collected on the LTER main site since 1988.
Originally, wind direction and speed, total solar radiation, net solar radiation, rainfall, air temperature, and relative humidity were recorded hourly in connection with measurements of evapotranspiration and deep percolation from a 6 m2 in-ground weighing lysimeter. The lysimeter and fetch area were planted to continuous alfalfa.
Although the lysimeter is no longer in operation, weather data collection continues. Precipitation was measured with a tipping bucket rain gauge until fall of 1997, when it was replaced with a weighing bucket rain gauge. All other sensors are electronic, connected to a data logger that is polled remotely. Instruments to measure wind speed and direction are mounted on a tower at 10 m. Light sensors (net solar radiation and photosynthetically active radiation) a thermometer, and an RH probe (with a built-in thermometer) are mounted at about 3 m. Soil moisture and temperature are monitored near the base of the tower.
| Experiment: | Research Context |
| Temporal Coverage: | 1992-11-10 to 2010-03-06 |
| Dataset: | KBS002 |
| Datatable ID: | KBS002-007.23 |
| Related Tables: |
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| Personnel: |
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| Last Updated | 2011-11-18 |
| Metadata |
| Variate | Description | Units |
|---|---|---|
| Datetime | Date and hour of the observation | |
| PAR AVG | Photosynthetically active radiation | microeinstein/metersquared/second |
| SolRad AVG | Solar radiation | watts/squaremeter |
| WIND SPEED | Wind speed | meters/second |
| WIND DIRECTION | Wind direction (0-360 degrees) weighted by wind speed | degree |
| RH | Relative Humidity | number |
| AH | Absolute Humidity | number |
| AirTmp 107 avg | Air temperature at 2 meters | celsius |
| Barometer AVG | Barometer | millibar |
| Protocols |
|---|
| MCSE: Weather Station Sensors |
| Weather Station Annual Maintenance |
| Soil Temperature: Onset Dataloggers |
| MCSE: Weather Station Weekly Maintenance |
Data Excerpt
| Datetime | Par Avg | Solrad Avg | Wind Speed | Wind Direction | Rh | Ah | Airtmp 107 Avg | Barometer Avg |
|---|---|---|---|---|---|---|---|---|
| 2012-05-14 18:00:00+00 | 1504.75 | 983.93 | 1.91 | 252.08 | 26.5 | 0.7 | 21.9 | 985.0 |
| 2012-05-14 17:00:00+00 | 1458.33 | 939.74 | 2.13 | 339.68 | 28.7 | 0.7 | 21.7 | 985.6 |
| 2012-05-14 16:00:00+00 | 1288.58 | 849.91 | 2.2 | 259.81 | 34.6 | 0.8 | 20.6 | 986.0 |
| 2012-05-14 15:00:00+00 | 1056.58 | 698.51 | 1.81 | 249.56 | 40.6 | 0.9 | 19.8 | 986.0 |
| 2012-05-14 14:00:00+00 | 804.42 | 530.19 | 1.21 | 330.73 | 46.5 | 0.9 | 18.2 | 986.0 |