Elevation Derivatives for National Applications (EDNA)
Entry ID: USGS_EDNA

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Summary
Abstract: The Elevation Derivatives for National Applications (EDNA) is a multi-layered database derived from a version of the National Elevation Dataset (NED), which has been hydrologically conditioned for improved hydrologic flow representation. The seamless EDNA database provides 30 meters resolution raster and vector data layers including:

-Aspect
-Contours
-Filled DEM
-Flow Accumulation
-Flow Direction
-Reach Catchment Seedpoints
-Reach Catchments
-Shaded Relief
-Sinks
-Slope
-Synthetic Streamlines

The recent completion of the National Elevation Dataset (NED) and the National Hydrography Dataset (NHD) has provided an avenue for nation-wide development of topographically derived hydrologic data layers at a scale of 1:24,000. Some of the benefits of a nation-wide development of hydrologic derivatives can be summarized as:

-The development of the EDNA database would be responsive to the need for better drainage basin boundaries for the country. The new Watershed Boundaries Dataset (WBD) strives to identify the "best-available" watersheds boundaries available on a national level. The development of the WBD is a joint project of the Advisory Committee of Water Information and the Federal Geographic Data Committee. The existing 1:250,000-scale Cataloging Unit delineations, currently, the "best-available" watershed boundaries for the country, have proven inadequate for many regional or local-level studies. Development of the EDNA derived Cataloging Unit, Watershed and Subwatershed boundaries can be used to provide high-resolution boundaries for the WBD.

-Along with development of improved, although static, Cataloging Unit boundaries and subsequent subdivision of these units into Watershed and Subwatershed units, the EDNA database will provide the capability of developing drainage basin boundaries above any point within the U.S. All locations downstream from any point in the U.S. can also be readily determined using the EDNA derivative data layers. With this information available on a national scale, impacts of pollutant spills can be easily traced through the network, drainage areas above any point (not just terminal points of pre-defined watersheds) can be determined and watershed units downstream of a point-source discharge can be easily be identified.

-Development of the EDNA database will serve to integrate two of the USGS' key national database, the NED and the NHD. Enhancements to both databases will be expected as the quality control procedures used in the development of the EDNA provide feedback to both NED and NHD. The NHD will be further enhanced by consistency with the EDNA. Elevation-derived streamline and basin parameters can be transferred onto the NHD following conflation with the EDNA. This will provide valuable attributes useful in model parameterization.

[Summary provided by the USGS.]

Related URL
Link: GET RELATED DATA SET METADATA (DIF)
Description: USGS National Elevation Dataset.


Link: GET RELATED DATA SET METADATA (DIF)
Description: The National Hydrography Dataset.


Geographic Coverage
 N: 76.63 S: 13.71  E: -61.48  W: -177.1

Data Set Citation
Dataset Originator/Creator: U.S. Geological Survey (USGS), EROS Center
Dataset Title: Elevation Derivatives for National Applications (EDNA)
Dataset Release Place: Sioux Falls, SD
Dataset Publisher: U.S. Geological Survey
Data Presentation Form: raster and vector digital data
Online Resource: http://edna.usgs.gov/


Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA


Science Keywords
AGRICULTURE >SOILS >CALCIUM    [Definition]
AGRICULTURE >SOILS >CARBON    [Definition]
AGRICULTURE >SOILS >CATION EXCHANGE CAPACITY    [Definition]
AGRICULTURE >SOILS >DENITRIFICATION RATE    [Definition]
AGRICULTURE >SOILS >ELECTRICAL CONDUCTIVITY    [Definition]
AGRICULTURE >SOILS >HYDRAULIC CONDUCTIVITY    [Definition]
AGRICULTURE >SOILS >MAGNESIUM    [Definition]
AGRICULTURE >SOILS >MICRONUTRIENTS/TRACE ELEMENTS    [Definition]
AGRICULTURE >SOILS >NITROGEN    [Definition]
AGRICULTURE >SOILS >ORGANIC MATTER    [Definition]
AGRICULTURE >SOILS >PERMAFROST    [Definition]
AGRICULTURE >SOILS >PHOSPHORUS    [Definition]
AGRICULTURE >SOILS >POTASSIUM    [Definition]
AGRICULTURE >SOILS >RECLAMATION/REVEGETATION/RESTORATION    [Definition]
AGRICULTURE >SOILS >SOIL SALINITY/SOIL SODICITY    [Definition]
AGRICULTURE >SOILS >SOIL ABSORPTION    [Definition]
AGRICULTURE >SOILS >SOIL BULK DENSITY    [Definition]
AGRICULTURE >SOILS >SOIL CHEMISTRY    [Definition]
AGRICULTURE >SOILS >SOIL CLASSIFICATION    [Definition]
AGRICULTURE >SOILS >SOIL COLOR    [Definition]
AGRICULTURE >SOILS >SOIL COMPACTION    [Definition]
AGRICULTURE >SOILS >SOIL CONSISTENCE    [Definition]
AGRICULTURE >SOILS >SOIL DEPTH    [Definition]
AGRICULTURE >SOILS >SOIL FERTILITY    [Definition]
AGRICULTURE >SOILS >SOIL GAS/AIR    [Definition]
AGRICULTURE >SOILS >SOIL HEAT BUDGET    [Definition]
AGRICULTURE >SOILS >SOIL HORIZONS/PROFILE    [Definition]
AGRICULTURE >SOILS >SOIL IMPEDANCE    [Definition]
AGRICULTURE >SOILS >SOIL MECHANICS    [Definition]
AGRICULTURE >SOILS >SOIL MOISTURE/WATER CONTENT    [Definition]
AGRICULTURE >SOILS >SOIL PH    [Definition]
AGRICULTURE >SOILS >SOIL PLASTICITY    [Definition]
AGRICULTURE >SOILS >SOIL POROSITY    [Definition]
AGRICULTURE >SOILS >SOIL PRODUCTIVITY    [Definition]
AGRICULTURE >SOILS >SOIL RESPIRATION    [Definition]
AGRICULTURE >SOILS >SOIL STRUCTURE    [Definition]
AGRICULTURE >SOILS >SOIL TEMPERATURE    [Definition]
AGRICULTURE >SOILS >SOIL TEXTURE    [Definition]
AGRICULTURE >SOILS >SOIL WATER HOLDING CAPACITY    [Definition]
AGRICULTURE >SOILS >SULFUR    [Definition]
AGRICULTURE >SOILS >THERMAL CONDUCTIVITY    [Definition]
AGRICULTURE >SOILS    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >AQUIFER RECHARGE    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >DISCHARGE/FLOW    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >DRAINAGE    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >FLOODS    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >HYDROPATTERN    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >HYDROPERIOD    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >INUNDATION    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >LAKES    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >RIVERS/STREAMS    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >RUNOFF    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >STAGE HEIGHT    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >TOTAL SURFACE WATER    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >WATER CHANNELS    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >WATER DEPTH    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >WATER PRESSURE    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >WATER YIELD    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >WATERSHED CHARACTERISTICS    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >WETLANDS    [Definition]
LAND SURFACE >EROSION/SEDIMENTATION    [Definition]
LAND SURFACE >GEOMORPHOLOGY >COASTAL LANDFORMS/PROCESSES    [Definition]
LAND SURFACE >GEOMORPHOLOGY >EOLIAN LANDFORMS/PROCESSES    [Definition]
LAND SURFACE >GEOMORPHOLOGY >FLUVIAL LANDFORMS/PROCESSES    [Definition]
LAND SURFACE >GEOMORPHOLOGY >GLACIAL LANDFORMS/PROCESSES    [Definition]
LAND SURFACE >GEOMORPHOLOGY >KARST LANDFORMS/PROCESSES    [Definition]
LAND SURFACE >GEOMORPHOLOGY >TECTONIC LANDFORMS/PROCESSES    [Definition]
LAND SURFACE >LANDSCAPE >LANDSCAPE MANAGEMENT    [Definition]
LAND SURFACE >LANDSCAPE >LANDSCAPE PATTERNS    [Definition]
LAND SURFACE >SOILS >CALCIUM    [Definition]
LAND SURFACE >SOILS >CARBON    [Definition]
LAND SURFACE >SOILS >CATION EXCHANGE CAPACITY    [Definition]
LAND SURFACE >SOILS >DENITRIFICATION RATE    [Definition]
LAND SURFACE >SOILS >ELECTRICAL CONDUCTIVITY    [Definition]
LAND SURFACE >SOILS >HYDRAULIC CONDUCTIVITY    [Definition]
LAND SURFACE >SOILS >MAGNESIUM    [Definition]
LAND SURFACE >SOILS >MICRONUTRIENTS/TRACE ELEMENTS    [Definition]
LAND SURFACE >SOILS >NITROGEN    [Definition]
LAND SURFACE >SOILS >ORGANIC MATTER    [Definition]
LAND SURFACE >SOILS >PERMAFROST    [Definition]
LAND SURFACE >SOILS >PHOSPHORUS    [Definition]
LAND SURFACE >SOILS >POTASSIUM    [Definition]
LAND SURFACE >SOILS >RECLAMATION/REVEGETATION/RESTORATION    [Definition]
LAND SURFACE >SOILS >SOIL SALINITY/SOIL SODICITY    [Definition]
LAND SURFACE >SOILS >SOIL ABSORPTION    [Definition]
LAND SURFACE >SOILS >SOIL BULK DENSITY    [Definition]
LAND SURFACE >SOILS >SOIL CHEMISTRY    [Definition]
LAND SURFACE >SOILS >SOIL CLASSIFICATION    [Definition]
LAND SURFACE >SOILS >SOIL COLOR    [Definition]
LAND SURFACE >SOILS >SOIL COMPACTION    [Definition]
LAND SURFACE >SOILS >SOIL CONSISTENCE    [Definition]
LAND SURFACE >SOILS >SOIL DEPTH    [Definition]
LAND SURFACE >SOILS >SOIL FERTILITY    [Definition]
LAND SURFACE >SOILS >SOIL GAS/AIR    [Definition]
LAND SURFACE >SOILS >SOIL HEAT BUDGET    [Definition]
LAND SURFACE >SOILS >SOIL HORIZONS/PROFILE    [Definition]
LAND SURFACE >SOILS >SOIL IMPEDANCE    [Definition]
LAND SURFACE >SOILS >SOIL MECHANICS    [Definition]
LAND SURFACE >SOILS >SOIL MOISTURE/WATER CONTENT    [Definition]
LAND SURFACE >SOILS >SOIL PH    [Definition]
LAND SURFACE >SOILS >SOIL PLASTICITY    [Definition]
LAND SURFACE >SOILS >SOIL POROSITY    [Definition]
LAND SURFACE >SOILS >SOIL PRODUCTIVITY    [Definition]
LAND SURFACE >SOILS >SOIL RESPIRATION    [Definition]
LAND SURFACE >SOILS >SOIL STRUCTURE    [Definition]
LAND SURFACE >SOILS >SOIL TEMPERATURE    [Definition]
LAND SURFACE >SOILS >SOIL TEXTURE    [Definition]
LAND SURFACE >SOILS >SOIL WATER HOLDING CAPACITY    [Definition]
LAND SURFACE >SOILS >SULFUR    [Definition]
LAND SURFACE >SOILS >THERMAL CONDUCTIVITY    [Definition]
LAND SURFACE >SOILS    [Definition]
LAND SURFACE >TOPOGRAPHY >CONTOURS    [Definition]
LAND SURFACE >TOPOGRAPHY >LANDFORMS    [Definition]
LAND SURFACE >TOPOGRAPHY >TOPOGRAPHICAL RELIEF    [Definition]
LAND SURFACE >TOPOGRAPHY >SURFACE ROUGHNESS    [Definition]
LAND SURFACE >TOPOGRAPHY >TERRAIN ELEVATION    [Definition]
LAND SURFACE >TOPOGRAPHY >TOPOGRAPHIC EFFECTS    [Definition]
TERRESTRIAL HYDROSPHERE >SURFACE WATER >SURFACE WATER CHEMISTRY    [Definition]
AGRICULTURE >SOILS >SOIL EROSION    [Definition]
AGRICULTURE >SOILS >HEAVY METALS    [Definition]
AGRICULTURE >SOILS >SOIL INFILTRATION    [Definition]
AGRICULTURE >SOILS >MACROFAUNA    [Definition]
AGRICULTURE >SOILS >MICROFAUNA    [Definition]
AGRICULTURE >SOILS >MICROFLORA    [Definition]
AGRICULTURE >SOILS >SOIL ROOTING DEPTH    [Definition]
LAND SURFACE >SOILS >SOIL EROSION    [Definition]
LAND SURFACE >SOILS >HEAVY METALS    [Definition]
LAND SURFACE >SOILS >SOIL INFILTRATION    [Definition]
LAND SURFACE >SOILS >MACROFAUNA    [Definition]
LAND SURFACE >SOILS >MICROFAUNA    [Definition]
LAND SURFACE >SOILS >MICROFLORA    [Definition]
LAND SURFACE >SOILS >SOIL ROOTING DEPTH    [Definition]


ISO Topic Category
FARMING
BIOTA


Platform
AERIAL PHOTOGRAPHS    [Information]
DEM >Digital Elevation Model    [Information]
MAPS    [Information]
STEREOGRAPHIC PHOTOGRAPHS    [Information]
FIELD INVESTIGATION    [Information]


Quality
Although these data have been processed successfully on a computer system at
the U.S. Geological Survey, EROS Data Center, no warranty expressed or implied
is made by either regarding the utility of the data on any system, nor shall
the act of distribution constitute any such warranty. The USGS will warrant the
delivery of this product in computer-readable format and will offer appropriate
adjustment of credit when the product is determined unreadable by correctly
adjusted computer peripherals, or when the physical medium is delivered in
damaged condition. Requests for adjustments of credit must be made within 90
days from the date of this shipment from the ordering site.


Access Constraints
None


Use Constraints
There is no guarantee of warranty concerning the accuracy of these data. Users should be aware that temporal changes may have occurred since the data was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of their limitations. Acknowledgement of the originating agencies would be appreciated in products derived from these data. Any user who modifies the data set is obligated to describe the types of modifications they perform. User specifically agrees not to misrepresent the data set, nor to imply that changes made were approved or endorsed by the U.S. Geological Survey. Please refer to http://www.usgs.gov/privacy.html for the USGS disclaimer.


Keywords
GIS
Geographic Information Systems
Vector Digital Data
Raster Digital Data
Hydrography
Topography
Aspect
Contours
Filled DEM
Flow Accumulation
Flow Direction
Reach Catchment Seedpoints
Reach Catchments
Shaded Relief
Sinks
Slope
Synthetic Streamlines
Cartography
Digital Mapping


Data Set Progress
IN WORK


Originating Center
USGS


Data Center
Earth Resources Observation and Science Center, U.S. Geological Survey, U.S. Department of the Interior    [Information]
Data Center URL: http://eros.usgs.gov/

Data Center Personnel
Name: EROS CENTER
Phone: 605-594-6151
Phone: 800-252-4547
Fax: 605-594-6589
Email: lta at usgs.gov
Contact Address:
LTA Customer Services
U.S. Geological Survey
EROS Center
47914 252nd Street
City: Sioux Falls
Province or State: SD
Postal Code: 57198-0001
Country: USA



Distribution
Distribution_Media: Online
Fees: No fees


Personnel
EROS CENTER
Role: TECHNICAL CONTACT
Phone: 605-594-6151
Phone: 800-252-4547
Fax: 605-594-6589
Email: lta at usgs.gov
Contact Address:
LTA Customer Services
U.S. Geological Survey
EROS Center
47914 252nd Street
City: Sioux Falls
Province or State: SD
Postal Code: 57198-0001
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



Creation and Review Dates
DIF Creation Date: 2006-01-11
Last DIF Revision Date: 2013-06-03

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