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Global Positioning System Ground Control Points Acquired 1995 for the Forest Ecosystem Dynamics Project Spatial Data Archive

Entry ID: FED_GPS_1095

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Summary

Abstract: Forest Ecosystem Dynamics (FED) Project Spatial Data Archive: Global Positioning System Ground Control Points and Field Site Locations from 1995

The Biospheric Sciences Branch (formerly Earth Resources Branch) within the Laboratory for Terrestrial Physics at NASA's Goddard Space Flight Center and associated University investigators are involved in a research program entitled Forest Ecosystem ... Dynamics (FED) which is fundamentally concerned with vegetation change of forest ecosystems at local to regional spatial scales (100 to 10,000 meters) and temporal scales ranging from monthly to decadal periods (10 to 100 years). The nature and extent of the impacts of these changes, as well as the feedbacks to global climate, may be addressed through modeling the interactions of the vegetation, soil, and energy components of the boreal ecosystem.

The Howland Forest research site lies within the Northern Experimental Forest of International Paper. The natural stands in this boreal-northern hardwood transitional forest consist of spruce-hemlock-fir, aspen-birch, and hemlock-hardwood mixtures. The topography of the region varies from flat to gently rolling, with a maximum elevation change of less than 68 m within 10 km. Due to the region's glacial history, soil drainage classes within a small area may vary widely, from well drained to poorly drained. Consequently, an elaborate patchwork of forest communities has developed, supporting exceptional local species diversity.

This data set is in ARC/INFO export format and contains Global Positioning Systems (GPS) ground control points in and around the International Paper Experimental Forest, Howland ME.

A Trimble roving receiver placed on the top of the cab of a pick-up truck and leveled was used to collect position information at selected sites (road intersections) across the FED project study area. The field collected data was differentially corrected using base files measured by a Trimble Community Base Station. The Community Base Station is run by the Forestry Department at the University of Maine, Orono (UMO). The base station was surveyed by the Surveying Engineering Department at UMO using classical geodetic methods. Trimble software was used to produce coordinates in Universal Transverse Mercator (UTM) WGS84. Coordinates were adjusted based on field notes. All points were collected during January 1995 and differentially corrected.

Related URL

Link: GET DATA

Description: Access GIS data.

Multimedia Sample

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Geographic Coverage

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Spatial coordinates

N: 45.0

S: 45.0

E: -68.0

W: -68.0

Data Set Citation

Dataset Originator/Creator: Darrel L. Williams

Dataset Title: Global Positioning System (GPS) Ground Control Points and Field Site Locations from 1995

Dataset Series Name: FED Project Home Page

Dataset Release Place: NASA/GSFC

Dataset Publisher: NASA/GSFC

Data Presentation Form: Map Image

Online Resource: http://fedwww.gsfc.nasa.gov/html/spatial-data223.html

Temporal Coverage

Start Date: 1995-01-01

Stop Date: 1995-01-30

Location Keywords

CONTINENT > NORTH AMERICA

CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MAINE

Science Keywords

HUMAN DIMENSIONS > ENVIRONMENTAL GOVERNANCE/MANAGEMENT > LAND MANAGEMENT > GROUND CONTROL POINT

ISO Topic Category

ENVIRONMENT

IMAGERY/BASE MAPS/EARTH COVER

PLANNING CADASTRE

Platform

SATELLITES

Instrument

GPS > Global Positioning System

Project

FED > Forest Ecosystem Dynamics

Ancillary Keywords

EASTING

FED

Originating Center

NASA/GSFC/FED

Data Center

Forest Ecosystem Dynamics Project, Biospheric Sciences Branch, Hydrospheric and Biospheric Sciences Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA

Data Center URL: http://forest.gsfc.nasa.gov/

Data Center Personnel
Name: BRUCE COOK Email: bruce.cook at nasa.gov Contact Address: NASA Goddard Space Flight Center Mailstop 614.4 City: Greenbelt Province or State: MD Postal Code: 20771 Country: USA

Distribution

Distribution Media: WWW

Distribution Format: ARC/INFO EXPORT, ASCII Table

Fees: Free

Personnel

STEVEN T. FIFER

Role: TECHNICAL CONTACT

DARREL L. WILLIAMS

Role: INVESTIGATOR

Email: Darrel.L.Williams at nasa.gov

Contact Address:

NASA

Goddard Space Flight Center

Mailstop 614.0

City: Greenbelt

Province or State: MD

Postal Code: 20771

Country: USA

TYLER B. STEVENS

Role: DIF AUTHOR

Phone: (301) 614-6898

Fax: 301-614-5268

Email: Tyler.B.Stevens at nasa.gov

Contact Address:

NASA Goddard Space Flight Center

Global Change Master Directory

City: Greenbelt

Province or State: MD

Postal Code: 20771

Country: USA

Publications/References

See: http://fedwww.gsfc.nasa.gov/html/fedmac/refs.html

Nel, E.M. and M.E. Jackson. 1993. An Independent Evaluation of the
Accuracy of Handheld GPS Receivers. Unpublished Report.

Levine, E., K.J. Ranson, J.A. Smith, D.L. Williams, R.G. Knox,
H.H. Shugart, D.L. Urban, and W.T. Lawrence. 1993. Forest
ecosystem dynamics: linking forest succession, soil process and
radiation models. Ecological Modelling 65: 199-219.

Creation and Review Dates

Last DIF Revision Date: 2011-04-06

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