Turkey Creek Watershed, Half-Hourly Weather Data, 2005-2017.

Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: Amatya, Devendra M. and Trettin, Carl C.
Publication_Date: 2018
Title:
Turkey Creek Watershed, Half-Hourly Weather Data, 2005-2017.
Geospatial_Data_Presentation_Form: database
Description:
Abstract:
A suite of climatic variables were measured and recorded (30-minute interval recording interval) by the Campbell Scientific CR10X datalogger and associated sensors installed in October 2005 on the Turkey Creek Watershed (the boundary of which partially overlaps the Santee Experimental Forest).
Purpose:
The purpose of the data set is to provide researchers with half-hourly measurements of a suite of climatic variables at the Turkey Creek weather station, located on the third-order Watershed 78 (also known as the Turkey Creek Watershed) that is adjacent to and partially overlaps the boundaries of the Santee Experimental Forest in the Francis Marion National Forest.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 2005
Ending_Date: 2017
Currentness_Reference:
ground condition
Status:
Progress: In work
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
The geographic area covered by the dataset is the Turkey Creek weather station, located on Watershed 78 (also known as the Turkey Creek Watershed), which is adjacent to and partially overlaps the Santee Experimental Forest in the Francis Marion National Forest.
Bounding_Coordinates:
West_Bounding_Coordinate: -79.78698
East_Bounding_Coordinate: -79.65885
North_Bounding_Coordinate: 33.15307
South_Bounding_Coordinate: 33.08453
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Forested watersheds
Theme_Keyword: Solar radiation
Theme_Keyword: Wind speed
Theme_Keyword: Wind direction
Theme_Keyword: Air Temperature
Theme_Keyword: Soil Temperature
Theme_Keyword: Vapor pressure
Theme_Keyword: Relative humidity
Theme_Keyword: Precipitation
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: South Carolina
Place_Keyword: Coastal Plain
Place_Keyword: Santee Experimental Forest
Place_Keyword: Francis Marion National Forest
Place_Keyword: Watershed 78
Place_Keyword: Turkey Creek
Access_Constraints: None
Use_Constraints:
These data were collected by USDA Forest Service researchers. In order to use the data in a publication, presentation or other research product you must agree to acknowledge its source. Please use the reference below when citing this work:

(Data name) courtesy of the USDA Forest Service Center for Forested Wetlands Research.

The following statement may be added after an acknowledgement or credit:

The USDA Forest Service Center for Forested Wetlands Research homepage is http://www.srs.fs.usda.gov/charleston/.
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Manual rainfall measurements were made using a 0.10 m (4-inch) diameter, 279.4 mm (11-inch) capacity All Weather Rain Gauge (Productive Alternatives, Inc., Fergus Falls, MN) with its opening at a height of 0.89 m from the ground.

A suite of climatic variables were recorded electronically on a half-hourly interval by sensors linked to a Campbell Scientific CR10X datalogger. Rainfall event data recorded by a Texas Electronics, Inc. Model TR-525USW or Sierra-Misco Environment Ltd. Model 2501 tipping bucket gauge were calibrated to the total rainfall collected by the manual gauge between download intervals.
Logical_Consistency_Report:
Visual inspection of electronically plotted data and comparison with data from various SEF stations were employed to expose anomalous values.
Completeness_Report:
Periods of missing data include the following:

All data unavailable from 1/1/05 0:30 to 10/3/05 14:30, when the station was installed.

All data missing from 6/30/06 10:30 to 6/30/06 11:00.

Solar radiation data missing from 6/17/09 9:30 to 7/30/09 13:30 while LI-COR LI-200X pyranometer was being recalibrated at Campbell Scientific.

Missing half-hourly TC tipping bucket rainfall totals from 8/1/10 8:30 to 8/13/10 8:30 (gauge clogged) were estimated based on Lotti Road event data (using total from TC manual gauge).

Missing half-hourly TC tipping bucket rainfall totals from 1/4/11 13:30 to 1/11/10 13:00 (gauge clogged), and also 1/24/11 14:30 to 2/9/11 11:30, were estimated based on Lotti Road event data (using totals from TC manual gauge).

Windspeed and wind direction data missing from 1/13/11 15:30 to 2/9/11 11:30 while Met One 34B sensor was being refurbished at Campbell Scientific.

All data missing from 1/24/11 14:30 to 2/9/11 11:30 because of problem with CR10X datalogger operating system.

Solar radiation data missing from 5/3/11 12:00 to 6/1/11 10:00 while LI-COR LI-200X sensor was being recalibrated at Campbell Scientific.

Air temperature, relative humidity and vapor pressure data missing from 6/19/12 10:30 to 7/17/12 10:00.

Windspeed data missing from 1/29/13 13:00 to 2/20/13 12:30.

Air temperature, relative humidity, vapor pressure and solar radiation data missing from 7/9/13 10:30 to 7/25/13 10:00.

Air temperature, relative humidity, and vapor pressure data missing from 10/1/14 9:30 to 10/28/14 10:00.

Windspeed data missing from 3/12/15 18:30 to 4/8/15 13:00.

Rainfall data missing from 7/24/15 10:00 to 8/7/15 12:00.

Because the manual rain gauge overflowed during the extreme rain event, the manual/tipping bucket ratio from 9/28/15 to 10/2/15 was used to estimate rainfall totals from 10/2/15 to 10/8/15.

Air temperature, relative humidity, and vapor pressure data missing from 11/18/15 12:30 to 1/6/16 12:30.

Windspeed data missing from 3/7/17 12:30 to 3/8/17 11:30.
Lineage:
Methodology:
Methodology_Type: Field
Methodology_Description:
A suite of climatic variables were recorded electronically on a half-hourly interval by sensors within a height of 3 m or lower and linked to a Campbell Scientific CR10X datalogger. Data was downloaded directly to a laptop computer using PC208 software.

Sensors installed with the CR10X datalogger included: CS 500 temperature and relative humidity probe (1.91 m height from ground); Met One 34B windset (2.59 m height from ground); LI-COR LI-200X pyranometer (2.46 m height from ground); Texas Electronics TE525WS tipping bucket rain gauge (2.69 m height from ground); and a Campbell Scientific 107-L soil temperature sensor (at a depth of 0.30 m).

At the same time that the electronic data were collected, the manual rain gauge water level was recorded using a dipstick and then dumped.

The CS 500 temperature and relative humidity probe was replaced by an HMP45C temperature and relative humidity probe on 8/27/10.

The LI-200X sensor was removed and replaced by an Apogee SP-110 pyranometer on 10/28/14.

Because of a failing reed switch in the TE525WS tipping bucket rain gauge, a backup Sierra-Misco Environment Ltd. Model 2501 tipping bucket gauge was installed on 8/7/15.

The HMP45C temperature and relative humidity probe was replaced by an HMP60 temperature and relative humidity probe on 1/6/16.

The TE525WS tipping bucket rain gauge was reinstalled and field calibrated on 5/11/16; spurious tip amounts resulting from calibration during the 10:30 to 12:00 period were removed from the data.

The TE525WS tipping bucket rain gauge was field calibrated again on 11/30/17, and spurious tip amounts resulting from the calibration were removed from the data.
Process_Step:
Process_Description:
Electronic data were downloaded from the CR10X datalogger and plotted to check for outliers or anomalies. The tipping bucket gauge totals were calibrated against the amount of rainfall that had been collected in the manual gauge.
Process_Date: Unknown
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Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
Variables included in the datasets TurkeyCr_halfhourly_data_2005_2007_rev.xlsx, TurkeyCr_halfhourly_data_2008_2011.xlsx, TurkeyCr_halfhourly_data_2012.xlsx, TurkeyCr_halfhourly_data_2013.xlsx, TurkeyCr_halfhourly_data_2014.xlsx, TurkeyCr_halfhourly_data_2015.xlsx, TurkeyCr_halfhourly_data_2016.xlsx and TurkeyCr_halfhourly_data_2017.xlsx:

Location = weather station location (WS78 = Watershed 78);
Instr_ID = weather station name (TC Met = Turkey Creek weather station);
Date_time_ = instantaneous date and time that data were recorded (format MM/DD/YYYY HH:MM);
Date_instant = date associated with instantaneous data (format MM/DD/YYYY);
Time24_instant = nearest half hour associated with instantaneous data (0 to 23.5);
Solar_rad_ (alias 'AverageSolarRadiation') = 30 minute average solar radiation, in Watts per m2;
Windspeed_ (alias 'AverageWindspeed') = 30 minute average wind speed, in m per sec;
Wind_direc (alias 'AverageWindDirection') = 30 minute wind direction vector, in degrees;
Air_Temp_C (alias 'AverageAirTemperature') = 30 minute average air temperature, in degrees Celsius;
Soil_Temp (alias "AverageSoilTemperature') = 30 minute average soil temperature, in degrees Celsius;
Vapor_Kpa = (alias 'AverageVaporPressure') calculated 30 minute average vapor pressure, in kPa;
max_RH (alias 'MaximumRH') = 30 minute maximum relative humidity, as a fraction;
min_RH (alias 'MinimumRH') = 30 minute minimum relative humidity, as a fraction;
RH (alias 'RelativeHumidity') = 30 minute average relative humidity, as a fraction;
Date_ave = date associated with averaged/totalled/maximum/minimum data (format MM/DD/YYYY HH:MM);
Time24_ave = nearest half hour associated with averaged/totalled/maximum/minimum data (0.5 to 24);
Rainfall_m (alias 'Rainfall') = rainfall total for preceding half hour, in mm; and
Sample_Int = sample interval (in hours).

All missing data were originally assigned the value "-9999"; during database development this code was changed to "null"
Entity_and_Attribute_Detail_Citation:
None
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Metadata_Reference_Information:
Metadata_Date: 20180712
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: USDA Forest Service, Southern Research Station, Center for Forested Wetlands Research
Contact_Person: Andy Harrison
Contact_Position: Hydrology Technician
Contact_Address:
Address_Type: mailing and physical
Address: 3734 Hwy 402
City: Cordesville
State_or_Province: SC
Postal_Code: 29434
Country: USA
Contact_Voice_Telephone: 843 336-5603
Metadata_Standard_Name: FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001.1-1999
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