Santee Experimental Forest, Santee Headquarters Hourly Weather Data, 1996-2003

Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: Amatya, Devendra M. and Trettin, Carl C.
Publication_Date: 2012
Title:
Santee Experimental Forest, Santee Headquarters Hourly Weather Data, 1996-2003
Geospatial_Data_Presentation_Form: database
Description:
Abstract:
Electronic measurement of a suite of climatic variables (including hourly averages of air temperature, wind speed and direction, solar radiation, photosynthetically active radiation (PAR), relative humidity, and hourly total precipitation and maximum and minimum relative humidity) began in November 1992 at the Santee Headquarters weather station, located adjacent to the headquarters offices and laboratories of the Santee Experimental Forest in Cordesville, SC. However, hourly data for these variables are only available starting in January 1996.
Purpose:
The purpose of the data set is to provide researchers with hourly estimates of a suite of climatic variables at the Santee Headquarters weather station, located adjacent to the headquarters offices and laboratories of the Santee Experimental Forest.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1996
Ending_Date: 2003
Currentness_Reference:
ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Description_of_Geographic_Extent:
The geographic area covered by the dataset is the Santee Headquarters weather station, located adjacent to the headquarters office and laboratories of the Santee Experimental Forest.
Bounding_Coordinates:
West_Bounding_Coordinate: -79.78153
East_Bounding_Coordinate: -79.76300
North_Bounding_Coordinate: 33.15007
South_Bounding_Coordinate: 33.13284
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Forested watersheds
Theme_Keyword: Solar radiation
Theme_Keyword: Photosynthetically active radiation (PAR)
Theme_Keyword: Wind speed
Theme_Keyword: Wind direction
Theme_Keyword: Air 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: Santee Headquarters
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 0.20 m (8-inch) diameter National Weather Service (NWS) Standard Rain Gauge with its opening 0.8 m from the ground. Manual air temperature measurements were made using standart max/min and ambient thermometers (at 1.52 m inside a ventilated wooden enclosure).

A suite of climatic variables (air temperature, solar radiation, PAR, wind speed and direction, relative humidity and rainfall) were recorded electronically by sensors linked to an Omnidata 800 datalogger (replaced in August 2001 by a Campbell Scientific CR10X datalogger and sensors). Air temperature data were checked against the standard max/min and ambient thermometers.
Logical_Consistency_Report:
Visual inspection of electronically plotted data and comparison with data from other SEF stations were employed to expose anomalous values.
Completeness_Report:
Periods of missing or unreliable data are numerous and include the following:

No hourly data available until 1/12/96 7:00,

All data missing for the 5/3/96 7:00 to 1/1/97 0:00 period.
RH data unreliable (many values > 100%) for 1996.

All data missing for 1/1/97 1:09 to 9/22/97 13:09 period.
Solar radiation and RH data for 1997 unreliable.

All data missing for 2/9/98 16:09 to 4/7/98 10:09 and 10/19/98 11:09 to 1/1/99 0:09 periods.
Solar radiation and RH data for 1998 unreliable.
Rainfall data unreliable for 4/7/98 11:09 to 5/17/98 15:09 period.

All data missing for 1/1/99 0:27 to 1/6/99 7:27 period.
Solar radiation and RH data for 1999 unreliable.
Rainfall data missing or unreliable for 1/1/99 0:27 to 1/6/99 7:27 and 5/16/99 2:28 to 6/2/99 14:28 periods.

All data missing for 11/23/00 6:28 to 1/1/01 0:28 period.
Solar radiation and RH data for 2000 unreliable.
Rainfall data unreliable starting 1/31/00 0:28.
PAR data missing or unreliable for 1/31/00 0:28 to 1/31/00 23:28, 5/25/00 11:28 to 6/15/00 20:28 and 11/23/00 6:28 to 1/1/01 0:28 periods.

Ave windspeed data missing for 1/31/00 0:28 to 1/31/00 23:28 and 11/23/00 6:28 to 1/1/01 0:28 periods.

All data missing for the 1/1/02 1:00 to 1/24/02 14:00 and 9/21/02 12:00 to 12/16/02 12:00 periods.
Rainfall data unreliable for 2002.

Gap in data from 2/21/03 10:00 to 4/2/03 14:00.
Q7.1 net radiometer installed 4/2/03 13:00 (at which point half-hourly observations commenced).
Rainfall data unreliable or missing for the period 1/1/03 1:00 to 4/2/03 14:00.
Lineage:
Methodology:
Methodology_Type: Field
Methodology_Description:
Starting in November 1992 a suite of climatic variables were recorded electronically (hourly averages based on a 15-minute scan interval) by sensors linked to an Omnidata 800 datalogger and downloaded via data storage packs.

At the same time that filled data storage packs were collected (and replaced by new, empty packs), the manual rain gauge water level was recorded using a dipstick and then dumped. Max/min and current ambient air temperature were also recorded (at 1.52 m inside a ventilated wooden enclosure).

In August 2001 the Omnidata 800 datalogger and sensors were replaced by a Campbell Scientific CR10X datalogger and sensors. Data was directly downloaded to a laptop computer using PC208 software. Manual rain and air temperature measurements were performed as above.

Sensors installed with the CR10X datalogger included: CS500 temperature and relative humidity probe (1.96 m from ground); Met One 34A windset (2.87 m from ground); LI-COR LI200X pyranometer (2.93 m from ground); and a Texas Electronics TE525WS tipping bucket rain gauge (with its opening 0.6 m from the ground).
Process_Step:
Process_Description:
Starting in November 1992 electronic data were retrieved from a data storage pack and used with a SAS program to generate daily temperature and rainfall values. In August 2001 the Omnidata 800 datalogger and sensors were replaced by a Campbell Scientific CR10X datalogger and sensors, and data was directly downloaded from the datalogger to a laptop computer. These data were also plotted to check for outliers.
Process_Date: Unknown
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Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
Variables included in the dataset SanteeHQ_hourly_data_rev2.xlsx:

Location = weather station location (HQ Office = Santee Headquarters);
Instr_ID = weather station name (SEFHQ = Santee Headquarters 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 hour associated with instantaneous data (0 to 23);
Solar_rad_ (alias 'AverageSolarRadiation') = hourly average solar radiation, in Watts per m2;
PAR_umol_s (alias 'AveragePAR') = hourly average PAR, in micromol per sec;
Windspeed_ (alias 'AverageWindspeed') = hourly average wind speed, in m per sec;
Wind_direc (alias 'AverageWindDirection') = hourly wind direction vector, in degrees;
Air_Temp_C (alias 'AverageAirTemperature') = hourly average air temperature, in degrees Celsius;
max_RH (alias 'MaximumRH') = hourly maximum relative humidity, as a fraction;
min_RH (alias 'MinimumRH') = hourly minimum relative humidity, as a fraction;
RH = (alias 'RelativeHumidity') hourly 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 hour associated with averaged/totalled/maximum/minimum data (1 to 24);
Rainfall_m (alias 'Rainfall') = rainfall total for preceding 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: 20110614
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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