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publications > open file report > OFR 2007-1200
U.S. Department of the Interior
U.S. Geological Survey
OFR 2007-1200
The Everglades Depth Estimation Network (EDEN) offers a consistent and documented dataset that can
be used to guide large-scale field operations, to integrate hydrologic and
ecological responses, and to support biological and ecological assessments that
measure ecosystem responses to the Comprehensive Everglades Restoration Plan (Telis,
2006). Ground elevation data for the greater Everglades and the digital ground elevation
models derived from them form the foundation for all EDEN water depth and
associated ecologic/hydrologic modeling (Jones, 2004, Jones and Price, 2007).
To use EDEN water depth and duration information most effectively, it is
important to be able to view and manipulate information on elevation data
quality and other land cover and habitat characteristics across the Everglades
region. These requirements led to the development of the geographic data layer
described in this techniques and methods report. Relying on extensive
experience in GIS data development, distribution, and analysis, a great deal of
forethought went into the design of the geographic data layer used to index
elevation and other surface characteristics for the Greater Everglades region.
To allow for simplicity of design and use, the EDEN area was broken into a
large number of equal-sized rectangles ("Cells") that in total are referred to
here as the "grid". Some characteristics of this grid, such as the size of its
cells, its origin, the area of Florida it is designed to represent, and
individual grid cell identifiers, could not be changed once the grid database
was developed. Therefore, these characteristics were selected to design as
robust a grid as possible and to ensure the grid's long-term utility. It is desirable to include all
pertinent information known about elevation and elevation data collection as
grid attributes. Also, it is very important to allow for efficient grid
post-processing, sub-setting, analysis, and distribution. This document details
the conceptual design of the EDEN grid spatial parameters and cell
attribute-table content.
Conversion Factors >
U.S. Department of the Interior
Dirk Kempthorne, Secretary
U.S. Geological Survey
Mark Myers, Director
U.S. Geological Survey, Reston, Virginia 2007
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Suggested citation:
Jones, John. W. and Susan D. Price, 2007, Conceptual design of the Everglades Depth Estimation Network (EDEN) grid: U.S. Geological Survey Open-File Report 2007-1200, Reston, VA, USGS, 20 pgs.
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Although this report is in the public domain, permission must be secured from the individual copyright owners to reproduce any copyrighted material contained within this report.
For more information:
Please visit the Everglades Depth Estimation Network (EDEN) website
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