Study Number: 

1048

Project Title:

GPS Locations gradient plot corners.

Investigator(s):

Brian D. Kloeppel  E-Mail | Tel. 828.524.2128 x127 | Biographical Sketch
Barrie Collins  E-Mail | Tel. 706.542.5691
Ned Gardiner, Paige Carithers
Affiliated Institution(s): University of Georgia
Address: Coweeta Hydrologic Laboratory
3160 Coweeta Lab Road
Otto, North Carolina 28763  USA
Study Type: Terrestrial
Project Type: Type One.
Study Period:

10/2000 - 10/2003
Status/Notes:

GIS GPS Point Collection.  See also:  Terrestrial gradient plot physical descriptions.
Funding Sources:

National Science Foundation, Grants DEB-9632854 and DEB-0218001 to Coweeta LTER.
Abstract: The locations of all gradient plot corners in the basin collected. Includes the original plot corners and the expanded plot corners.
Location(s), Described: Gradient plots and expanded gradient plots. 

See also:  Terrestrial gradient plot physical descriptions.
Location(s), Download GPS: ArcView Shape Files (shp.): UTM, NAD83, Zone 17  |  Lat/Lon   
Location(s), Online Maps: USGS Topographic-based Maps of Research Sites (Printable for fieldwork)
Methods/Experimental Design: Use Trimble Pro-XRS 12-channel DGPS with differential correction and a filtered PDOP of less than 3 in 3D mode to fix the positions of each gradient plot and expanded gradient plot corner. This project will be completed by field  technicians as time permits between other sampling duties.

COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC
1 AREA 4 12 F 3 Not relevant; Arc/Info specific
5 PERIMETER 4 12 F 3 Not relevant; Arc/Info specific
9 PTS1048# 4 5 B - Internal id; Not relevant; Arc/Info specific
13 PTS1048-ID 4 5 B - Unique relational id; links GPS data to other online data
17 COMMENT 32 32 C - Note label of each corner, such as (0,0) or (20,40)
49 MAX_PDOP 8 5 F 1 Maximum PDOP allowed during collection and post-processing
57 CORR_TYPE 36 36 C - Flag for Correction type (Differential)
93 RCVR_TYPE 36 36 C - Flag for Pro-XRS
129 GPS_DATE 8 8 D - Date that first feature was collected
137 GPS_TIME 20 20 C - Time that first feature was collected
157 FEAT_NAME 20 20 C - Should be Point_generic
177 DATAFILE 20 20 C - Name of ascii file from which arc coverage was generated
197 UNFILT_POS 10 10 I - Number of unfiltered positions; should be 0
207 FILT_POS 10 10 I - Filtered Positions; number of positions meeting filtering requirements; ideally PDOP < 3 and Differential 3D mode
217 STD_DEV 8 16 F 6 Standard deviation of position
225 GPS_HEIGHT 8 16 F 3 Height of GPS coordinate; Elevation
233 HORZ_PREC 8 16 F 3 X-Y precision of a point
241 VERT_PREC 8 16 F 3 Z precision of a point
249 X-COORD 4 12 F 3 UTM easting, meters
253 Y-COORD 4 12 F 3 UTM northing, meters
Sampling Frequency: One collection per site.
Data Columns:

Not Applicable.

Missing Data Codes: blank field = missing data
Publications:

None.

Note:  Many of the links from Authors and/or Publications are external; if you experience a broken link, we would be grateful if you take the time to notify Coweeta LTER:  Broken Link Report.
Data Restrictions: Users must adhere to the Coweeta LTER Data Policy.
Metadata: EML Format (XML Schema) | Information about EML
 1048.TXT 
Data Downloads: None available.  (This is a GPS collection project. Please see "Locations" above for results of the data.)