Weather Data from Hull Springs Farm: 2019-09-10 to 2019-09-29

# General Metadata for Hull Springs Farm Atmospheric Sampling Station

## Files

Specific metadata for each deployment can be found as text files with the file format of:

    HSF_weather_YYYY-MM-DD_metadata.txt

Where YYYY-MM-DD is the date that the sampling period ended.

## File Created

  * 2019-10-27 by KF

## File Modified

## Description

These data are from a weather station installed at Hull Springs Farm near the "Yellow House" (38.121683, -76.666781) as part of the Longwood Environmental Observatory.

All data are CC-BY and should be cited using the DOI available at https://zenodo.org/communities/leo/

## Station Specifics

  The specific at each site are:

    * Barometric Pressure (mmHg) - Campbell Scientific CS100 Barometric Pressure Sensor
    * Light Flux Density (kW/m^2) - Campbell Scientific Pyranometer CS300
    * Light Total Flux (kJ/m^2) - Campbell Scientific Pyranometer CS300
    * Rainfall (mm) - Texas Electronics TE525 Tipping Bucket
    * Temperature (dC) - Campbell Scientific CS215 Temperature and Relative Humidity Sensor
    * Relative Humidity (%) - Campbell Scientific CS215 Temperature and Relative Humidity Sensor
    * Wind Speed (m/s) - RM Young 05103 Wind Speed and Direction Sensor
    * Wind Direction (degrees from true N) - RM Young 05103 Wind Speed and Direction Sensor
    * Data Collection - Campbell Scientific CR200 Data Logger
        * The sensors are sampled every 15 minutes

## Measurement Parameters, units, and Variable Names

    * DATE - the date that the record was collected (YYYY-MM-DD)
    * TIMESTAMP - the date and time that the datalogger assigned to the record that was collected (YYYY-MM-DD HH:MM:SS)

    * TIMESTAMP.corr - the date and time that the record was collected (YYYY-MM-DD HH:MM:SS). The date and time on the data logger was set incorrectly when the data collection began so the time stamps from the logger are incorrect.  We used the file download time to identify the last actual time that data logger collected a sample and then offset the TIMESTAMP values by the difference between the recorded and actual time of the last sample collection. 
    * RECORD.x - a unique identifying number provided from the data logger for table 1 from the original downloaded data. 
    * BattV_Avg - The average battery voltage (Volts)
    * BattV - The battery voltage at the time of the sampling (Volts)
    * BP_mmHg_Avg - The average barometric pressure over the sampling interval (mmHg)
    * BP_mmHg_Std - The standard deviation of the average barometric pressure (mmHg)
    * BP_mmHg - The barometric pressure at the time of the sampling (mmHg)
    * Rain_mm_Tot - The total rainfall during the sampling interval (mm)
    * AirTC_Avg - The average air temperature during the sampling interval (dC) 
    * AirTC_Std - The standard deviation of the average air temperature (dC) 
    * AirTC - the air temperature at the time of the sampling (dC)
    * RH - the relative humidity at the time of the sampling (%)
    * RH_Min - the minimum relative humidity recorded (%)
    * RH_TMn - the time that the minimum relative humidity measurement occurred (YYYY-MM-DD HH:MM:SS) 
    * RH_Max - the maximum relative humidity recorded (%)
    * RH_TMx - the time that the maximum relative humidity measurement occurred (YYYY-MM-DD HH:MM:SS)
    * RECORD.y - a unique identifying number provided from the data logger for table 1 from the original downloaded data.
    * BattV_Min - the minimum battery voltage (Volts)
    * SlrkW_Avg - the average light flux density during the sampling interval (kW/m^2) 
    * SlrkW_Std - the standard deviation of the average light flux density (kW/m^2)
    * SlrkW - the light flux density at the time of the sampling (kW/m^2)
    * SlrMJ_Tot - the total light flux (MJ/m^2) 
    * WS_ms_Avg - the average wind speed during the sampling interval (m/s) 
    * WS_ms_Std - the standard deviation of the average wind speed (m/s) 
    * WS_ms - the wind speed at the time of the sampling event (m/s)
    * WindDir - the wind direction at the time of the sampling event (degrees from true N)
    * WS_ms_S_WVT - the average wind speed over the previous 15 minutes (m/s)
    * WindDir_D1_WVT - the average wind direction over the previous 15 minutes (degrees from true N)
    * WindDir_SD1_WVT - the standard deviation of the average wind direction over the previous 15 minutes (degrees from true N)