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GI002: 30 meter digital elevation model (DEM) clipped to the Andrews Experimental Forest, 1996

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Status: notPlanned
Period: 1996-01-12 to 1996-08-01
Version: 4
Published: 2005-07-25
EDI Package ID: knb-lter-and.3230.4
Source XML: GI002_4.xml

Notice

"As Is" Basis: All content, including maps and forecasts, is provided without warranties. Users are advised to independently verify critical information.

Citation

2005. 30 meter digital elevation model (DEM) clipped to the Andrews Experimental Forest, 1996 Long-Term Ecological Research Andrews Forest LTER Site. [Database]. Available: https://andrewsforest-stage.forestry.oregonstate.edu/data/fsdb-data-catalog/GI002 Accessed 2026-05-10.

Abstract

Elevation Model for the HJ Andrews Experimental Forest (30 meter DEM). This dataset includes the raw DEM, and several value added products. The products are contour lines, aspect, percent slope, and a hill shade for relief mapping.

Coverage

Temporal coverage: 1996-01-12 to 1996-08-01

Geographic coverage: Andrews Experimental Forest within the Willamette National Forest, western Cascades, Oregon, USA.

Spatial coverage:

Bounds: W -122.26840800, E -122.09545100, N 44.28664300, S 44.19278000

Purpose
  • DEMs (Digital Elevation Model data) are used to support a wide range of geographic information system (GIS) applications, including: surface hydrologic modeling, slope and aspect determination, viewshed analysis, fire modeling, contouring, transportation route planning, and profile generation. DEMs are also used to rectify aerial photography in the production of Digital Orthophoto Quads (DOQs)
Project

Title: Long-Term Ecological Research

Personnel
  • Sherri L. Johnson - Principal Investigator
    US Forest Service ;Pacific NW Research Station ;3200 SW Jefferson Way, Corvallis, OR, 97331, USA
    Phone: 541-758-7771
    Email: sherri.johnson2@usda.gov, sherri.johnson@oregonstate.edu
  • Julia A. Jones - Principal Investigator
    Oregon State University;Department of Geosciences; Wilkinson Hall 104, Corvallis, OR, 97331-5506, USA
    Phone: (541) 737-1224
    Email: Julia.Jones@oregonstate.edu, geojulia@comcast.net
    ORCID: http://orcid.org/0000-0001-9429-8925
  • Matthew G Betts - Principal Investigator
    Department of Forest Ecosystems and Society; 201E Richardson Hall; College of Forestry; Oregon State University, Corvallis, OR, 97331
    Phone: (541) 737-3841
    Email: matt.betts@oregonstate.edu
  • Michael P. Nelson - Principal Investigator
    Department of Forest Ecosystems and Society; 201K Richarson Hall; College of Forestry; Oregon State University, Corvallis, OR, 97331
    Phone: 541-737-9221
    Email: mpnelson@oregonstate.edu
    ORCID: http://orcid.org/0000-0001-6917-4752
  • David Bell - Principal Investigator
    Email: david.bell@usda.gov, david.bell@oregonstate.edu
Abstract
  • The H.J. Andrews Experimental Forest is a living laboratory that provides unparalleled opportunities for the study of forest and stream ecosystems in the central Cascade Range of Oregon. Since 1980, as a part of the National Science Foundation Long Term Ecological Research (NSF-LTER) program, the Andrews Experimental Forest has become a leader in the analysis of forest and stream ecosystem dynamics.
  • Long-term field experiments and measurement programs have focused on climate dynamics, streamflow, water quality, and vegetation succession. Currently researchers are working to develop concepts and tools needed to predict effects of natural disturbance, land use, and climate change on ecosystem structure, function, and species composition.
  • The Andrews Experimental Forest is administered cooperatively by the USDA Forest Service Pacific Northwest Research Station, Oregon State University and the Willamette National Forest. Funding for the research program comes from the National Science Foundation (NSF), US Forest Service Pacific Northwest Research Station, Oregon State University, and other sources.
Funding

Data were provided by the HJ Andrews Experimental Forest research program, funded by the National Science Foundation's Long-Term Ecological Research Program (DEB 2025755), US Forest Service Pacific Northwest Research Station, and Oregon State University. National Science Foundation: DEB1440409

Study Area Description
  • Long-Term Ecological Research
    The Andrews Forest is situated in the western Cascade Range of Oregon, and covers the entire 15,800-acre (6400-ha) drainage basin of Lookout Creek. Elevation ranges from 1350 to 5340 feet (410 to 1630 m). Broadly representative of the rugged mountainous landscape of the Pacific Northwest, the Andrews Forest contains excellent examples of the region's conifer forests and associated wildlife and stream ecosystems. These forests are among the tallest and most productive in the world, with tree heights of often greater than 250 ft (75 m). Streams are steep, cold and clean, providing habitat for numerous aquatic organisms.
Associated Party
  • Theresa J. Valentine
    Role: Principal Investigator
    USDA Forest Service;Pacific NW Research Station;3200 SW Jefferson Way, Corvallis, OR, 97331, USA
    Phone: (541) 750-7333
    Email: theresa.valentine56@gmail.com
Contact
  • Information Manager
    Andrews Forest LTER Program, US Forest Service Pacific Northwest Research Station, 3200 SW Jefferson Way, Corvallis, OR, 97331
    Email: hjaweb@fsl.orst.edu
  • Theresa J. Valentine
    USDA Forest Service;Pacific NW Research Station;3200 SW Jefferson Way, Corvallis, OR, 97331, USA
    Phone: (541) 750-7333
    Email: theresa.valentine56@gmail.com
Publisher
  • Andrews Forest LTER Site
    Role: Publisher
    Forest Ecosystems and Society Department in Forestry, Oregon State University, 201K Richardson Hall, Corvallis, OR, 97331-5752
    Phone: (541) 737-8480
    Email: lterweb@fsl.orst.edu
Study Description

Elevation Model for the HJ Andrews Experimental Forest (30 meter DEM). This dataset includes the raw DEM, and several value added products. The products are contour lines, aspect, percent slope, and a hill shade for relief mapping. DEMs (Digital Elevation Model data) are used to support a wide range of geographic information system (GIS) applications, including: surface hydrologic modeling, slope and aspect determination, viewshed analysis, fire modeling, contouring, transportation route planning, and profile generation. DEMs are also used to rectify aerial photography in the production of Digital Orthophoto Quads (DOQs) Processing Procedures - GI002

Purpose: DEMs (Digital Elevation Model data) are used to support a wide range of geographic information system (GIS) applications, including: surface hydrologic modeling, slope and aspect determination, viewshed analysis, fire modeling, contouring, transportation route planning, and profile generation. DEMs are also used to rectify aerial photography in the production of Digital Orthophoto Quads (DOQs)

Methods

Method Steps

Processing Procedures - GI002
  • GI00201: The original dems for the 6 quads that cover the HJA were mismatched by method (2 USGS quads were done by analytical stereo plotter and 4 GSC quads were developed using scanned contour) and were not edgematched. New edgematched quads were delivered by Region 6 in late 1994 - all using the GSC method. 960801 - previous versions of this dem were incorrectly shifted due to confusion over the datum. This unshifted dem is based on the 1927 North American Datum.
Processing Procedures - GI002 (1)
  • GI00202: layer was derived from a 30-m DEM using the LATTICECONTOUR command in ArcGIS
Processing Procedures - GI002 (2)
  • GI00203: Geometronics Service Center created the Digital Elevation Models, that were edgematched by Region 6 Geometronics, they were then merged and this layer was created using the ArcGIS command LATTICECONTOUR.
Processing Procedures - GI002 (3)
  • GI00204: Digital Elevation Model files from the US Forest Service Geometronics Service Center were edgematched by Region 6 Geometronics. They were merged and this layer was created using the ARC/INFO command LATTICECONTOR
Processing Procedures - GI002 (4)
  • GI00205: The ArcGIS Grid function SLOPE was used on the HJA 30 meter DEM optained from USFS Geometronics Service Center. hjaslp = slope (lat_27,percentrise)
Processing Procedures - GI002 (5)
  • GI00206: The ArcGIS Grid function ASPECT was used on the HJA 30 meter DEM optained from USFS Geometronics Service Center.
Processing Procedures - GI002 (6)
  • GI00207: The ESRI GRID function HILLSHADE was applied to the HJ Andrews Experimental Forest 30 meter DEM (obtained from the USFS Geometronics Service Center)

Sampling

Software

No software entries listed in this EML file.

Keywords
  • LTER controlled vocabulary: topography (theme), digital elevation model (theme)
Taxonomic Hierarchy

No taxonomic hierarchy listed in this EML file.

Data Entities

No data tables listed in this EML file.

Metadata

No data tables listed in this EML file.

Units

No units listed in this EML file.

Related Datasets
Related Publications

No publication citations found in this EML file.

Related Files

No related files listed in this EML file.

Intellectual Rights

Data Use Agreement:

The re-use of scientific data has the potential to greatly increase communication, collaboration and synthesis within and among disciplines, and thus is fostered, supported and encouraged. This Data Set is released under the Creative Commons license CC BY "Attribution" (see: https://creativecommons.org/licenses/by/4.0/). Creative Commons license CC BY - Attribution is a license that allows others to distribute, remix, tweak, and build upon your work (even commercially), as long as you are credited for the original creation. This license accommodates maximum dissemination and use of licensed materials.

It is considered professional conduct and an ethical obligation to acknowledge the work of other scientists. The Data User is asked to provide attribution of the original work if this data package is shared in whole or by individual parts or used in the derivation of other products. A recommended citation is provided for each Data Set in the Andrews LTER data catalog (see: http://andlter.forestry.oregonstate.edu/data/catalog/datacatalog.aspx). A generic citation is also provided for this Data Set on the website https://portal.edirepository.org in the summary metadata page. Data Users are thus strongly encouraged to consider consultation, collaboration and/or co-authorship with the Data Set Creator.

While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed and all data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data.

General acknowledgement: Data were provided by the HJ Andrews Experimental Forest research program, funded by the National Science Foundation's Long-Term Ecological Research Program (DEB 2025755), US Forest Service Pacific Northwest Research Station, and Oregon State University.

Licensed

License: N/A

Maintenance

Maintenance update frequency: notPlanned

Description

  • An update history is logged and maintained with each new version of every dataset.

Change History

  • Version1 (1996-01-08)
    GIS coverage creation date.
  • Version2 (2004-01-16)
    Metadata files created in ARC/catalog as HTML format. ARC/Info Export files, shape files, or other data file on ftp.fsl.orst.edu.
  • Version3 (2005-06-08)
    Upper level gis metadata (catalog, databases, entity, sub_entity, catalog_component, cross_reference, update_history) restructured and moved into SQLServer metadata database LTERMETA.