This data file contains historical or archived. Wind and gust speeds reported at St Laurent Li Taan Aen Staansyoon indicate speeds that would be felt nearby on the lake only when the wind blows from SSW through W to NNW. The anemometer is sheltered from the full force of the wind by trees in other directions.
Archived data from St Laurent Li Taan Aen Staansyoon that covers data from:
- September 20 to October 13, 2021
- October 13 to 15, 2021
- October 15, 2021 to January 25, 2022
Updated 2022-03-11 with new QA/QC filters. QA/QC filters are described in Weather Station Codebook.
| Column | Type | Label | Description | Units | Media type | Result Value Type | Statistic Applied |
|---|---|---|---|---|---|---|---|
| UT_ISO8601 | text | Datetime | String corresponding to format 'YYYY-MM-DDThh:mm:ss.sssZ' or other valid ISO8601 string. |
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| air_pressure | text | Pressure | Measured using a barometer mounted inside the enclosure that houses the air temperature sensor. It is reported in millibars, where 1,000 millibars is the average air pressure at sea level. Changing pressure often indicates a coming change in the weather. Increasing pressure is associated with clearing skies. Decreasing pressure is associated with increasing cloudiness, and possibly an approaching storm. |
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| pressure_result_value_qualifier | text | Pressure result value qualifier | A result value qualifier is a code field to identify measurements outside of the sensor calibrated detection range. "ADL" is a measurement above the detection limit and "BDL" is below the detection limit. |
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| Photosynthetically.Active.Radiation | text | PAR | The intensity of the part of sunlight that plants can use to support new growth, and also the wavelengths of light that our eyes are sensitive to. It is measured on a small white disc that records the sum of light falling directly from the sun, and light scattered by the sky and clouds. It is reported in a unit called a micro-Einstein. |
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| PAR_result_value_qualifier | text | PAR result value qualifier | A result value qualifier is a code field to identify measurements outside of the sensor calibrated detection range. "ADL" is a measurement above the detection limit and "BDL" is below the detection limit. |
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| air_temperature | text | Temperature | We report temperature in the shade, in Centigrade degrees. It is measured using an electronic thermometer shielded from direct sunlight, mounted inside an enclosure with louvered walls to allow free air flow past the sensor. |
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| temperature_result_value_qualifier | text | Temperature result value qualifier | A result value qualifier is a code field to identify measurements outside of the sensor calibrated detection range. "ADL" is a measurement above the detection limit and "BDL" is below the detection limit. |
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| relative_humidity | text | RH | The amount of water vapour in the air reported as a percentage of the amount that would saturate it at the air temperature. Warmer air can hold more water vapour than cooler air. |
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| humidity_result_value_qualifier | text | RH result value qualifier | A result value qualifier is a code field to identify measurements outside of the sensor calibrated detection range. "ADL" is a measurement above the detection limit and "BDL" is below the detection limit. |
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| Precip | text | Rain | Reported in millimetres accumulated every 15 minutes in a gauge set about 1 m above the ground. Rain falling into a 6-inch diameter funnel drips onto a one of a pair of “buckets”, mounted on a teeter-totter. When one bucket is filled, the teeter-totter flips, the first bucket is emptied and rain then drips into the other “bucket” until it is filled, and so on. Each flip is equals 0.2 mm of rain. |
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| precip_result_value_qualifier | text | Rain result value qualifier | A result value qualifier is a code field to identify measurements outside of the sensor calibrated detection range. "ADL" is a measurement above the detection limit and "BDL" is below the detection limit. Additionally, winter months (December, January, and February) are given the code "prob_bad" to identify possible false measurements due to snow. Transitional seasons, fall and spring, are given this code when temperature below 1°C. |
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| wind_speed | text | Wind speed | Measured using a spinning anemometer mounted on the wind vane at the top of the tower, about 3 m above the ground. We report the average speed for every 15 minute period, in meters per second. |
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| wind_speed_result_value_qualifier | text | Wind speed result value qualifier | A result value qualifier is a code field to identify measurements outside of the sensor calibrated detection range. "ADL" is a measurement above the detection limit and "BDL" is below the detection limit. Additionally, wind speed is given the code "prob_bad" when equal to gust speed and measuring greater than 40 m/s. |
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| wind_speed_of_gust | text | Gust Speed | The highest wind speed recorded in each 15 minute period, and are also recorded in kilometres per hour. |
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| gust_speed_result_value_qualifier | text | Gust speed result value qualifier | A result value qualifier is a code field to identify measurements outside of the sensor calibrated detection range. "ADL" is a measurement above the detection limit and "BDL" is below the detection limit. Additionally, gust speed is given the code "prob_bad" when equal to wind speed and measuring greater than 40 m/s. |
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| wind_from_direction | text | Wind direction | Measured using a wind vane mounted at the top of the tower. As we do with wind speed, we report the average direction for every 15 minutes, in compass degrees from true north. |
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| wind_direction_result_value_qualifier | text | Wind direction result value qualifier | A result value qualifier is a code field to identify measurements outside of the sensor calibrated detection range. "ADL" is a measurement above the detection limit and "BDL" is below the detection limit. |
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| battery.output | text | Battery voltage | Power provided by an electric battery, in units of volts (V). Note, name is standardized as 'battery output'. |