Elevation Derivatives for National Applications (EDNA)

Federal Geographic Data Committee (FGDC) Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Reference_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: U.S. Geological Survey (USGS), EROS Data Center

Publication_Date: Unknown

Title: Elevation Derivatives for National Applications (EDNA)

Edition:

Geospatial_Data_Presentation_Form: raster and vector digital data

Series_Information:

Series_Name:

Issue_Identification:

Publication_Information:

Publication_Place: Sioux Falls, SD

Publisher: U.S. Geological Survey

Other_Citation_Details:

Online_Linkage: http://edna.usgs.gov/

Description:

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.]

Purpose:

Not Available

Supplemental_Information:

Not Available

Status:

Progress: In Work

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Description_of_Geographic_Extent:

Bounding_Coordinates:

West_Bounding_Coordinate: -177.1

East_Bounding_Coordinate: -61.48

North_Bounding_Coordinate: 76.63

South_Bounding_Coordinate: 13.71

Keywords:

Theme:

Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS

Theme_Keyword_Thesaurus: GCMD PLATFORM

Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS

Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY

Theme_Keyword_Thesaurus: DATA SET LANGUAGE

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > CALCIUM

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > CARBON

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > CATION EXCHANGE CAPACITY

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > DENITRIFICATION RATE

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > ELECTRICAL CONDUCTIVITY

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > HYDRAULIC CONDUCTIVITY

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > MAGNESIUM

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > MICRONUTRIENTS/TRACE ELEMENTS

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > NITROGEN

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > ORGANIC MATTER

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > PERMAFROST

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > PHOSPHORUS

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > POTASSIUM

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > RECLAMATION/REVEGETATION/RESTORATION

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL SALINITY/SOIL SODICITY

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL ABSORPTION

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL BULK DENSITY

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL CHEMISTRY

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL CLASSIFICATION

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL COLOR

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL COMPACTION

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL CONSISTENCE

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL DEPTH

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL FERTILITY

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL GAS/AIR

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL HEAT BUDGET

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL HORIZONS/PROFILE

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL IMPEDANCE

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL MECHANICS

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL MOISTURE/WATER CONTENT

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL PH

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL PLASTICITY

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL POROSITY

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL PRODUCTIVITY

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL RESPIRATION

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL STRUCTURE

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL TEMPERATURE

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL TEXTURE

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL WATER HOLDING CAPACITY

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SULFUR

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > THERMAL CONDUCTIVITY

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS

Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > AQUIFER RECHARGE

Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > DISCHARGE/FLOW

Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > DRAINAGE

Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > FLOODS

Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > HYDROPATTERN

Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > HYDROPERIOD

Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > INUNDATION

Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > LAKES

Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > RIVERS/STREAMS

Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > RUNOFF

Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > STAGE HEIGHT

Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > TOTAL SURFACE WATER

Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > WATER CHANNELS

Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > WATER DEPTH

Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > WATER PRESSURE

Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > WATER YIELD

Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > WATERSHED CHARACTERISTICS

Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > WETLANDS

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > GEOMORPHOLOGY > COASTAL LANDFORMS/PROCESSES

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > GEOMORPHOLOGY > EOLIAN LANDFORMS/PROCESSES

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > GEOMORPHOLOGY > FLUVIAL LANDFORMS/PROCESSES

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > GEOMORPHOLOGY > GLACIAL LANDFORMS/PROCESSES

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > GEOMORPHOLOGY > KARST LANDFORMS/PROCESSES

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > GEOMORPHOLOGY > TECTONIC LANDFORMS/PROCESSES

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > LANDSCAPE > LANDSCAPE MANAGEMENT

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > LANDSCAPE > LANDSCAPE PATTERNS

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > CALCIUM

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > CARBON

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > CATION EXCHANGE CAPACITY

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > DENITRIFICATION RATE

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > ELECTRICAL CONDUCTIVITY

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > HYDRAULIC CONDUCTIVITY

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > MAGNESIUM

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > MICRONUTRIENTS/TRACE ELEMENTS

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > NITROGEN

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > ORGANIC MATTER

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > PERMAFROST

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > PHOSPHORUS

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > POTASSIUM

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > RECLAMATION/REVEGETATION/RESTORATION

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL SALINITY/SOIL SODICITY

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL ABSORPTION

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL BULK DENSITY

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL CHEMISTRY

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL CLASSIFICATION

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL COLOR

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL COMPACTION

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL CONSISTENCE

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL DEPTH

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL FERTILITY

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL GAS/AIR

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL HEAT BUDGET

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL HORIZONS/PROFILE

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL IMPEDANCE

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL MECHANICS

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL MOISTURE/WATER CONTENT

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL PH

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL PLASTICITY

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL POROSITY

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL PRODUCTIVITY

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL RESPIRATION

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL STRUCTURE

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL TEMPERATURE

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL TEXTURE

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL WATER HOLDING CAPACITY

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SULFUR

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > THERMAL CONDUCTIVITY

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > CONTOURS

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > LANDFORMS

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TOPOGRAPHICAL RELIEF

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > SURFACE ROUGHNESS

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TOPOGRAPHIC EFFECTS

Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > SURFACE WATER CHEMISTRY

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL EROSION

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > HEAVY METALS

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL INFILTRATION

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > MACROFAUNA

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > MICROFAUNA

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > MICROFLORA

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > SOILS > SOIL ROOTING DEPTH

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL EROSION

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > HEAVY METALS

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL INFILTRATION

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > MACROFAUNA

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > MICROFAUNA

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > MICROFLORA

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > SOILS > SOIL ROOTING DEPTH

Theme_Keyword: AERIAL PHOTOGRAPHS

Theme_Keyword: DEM > DIGITAL ELEVATION MODEL

Theme_Keyword: MAPS

Theme_Keyword: STEREOGRAPHIC PHOTOGRAPHS

Theme_Keyword: FIELD INVESTIGATION

Theme_Keyword: Gis

Theme_Keyword: Geographic Information Systems

Theme_Keyword: Vector Digital Data

Theme_Keyword: Raster Digital Data

Theme_Keyword: Hydrography

Theme_Keyword: Topography

Theme_Keyword: Aspect

Theme_Keyword: Contours

Theme_Keyword: Filled Dem

Theme_Keyword: Flow Accumulation

Theme_Keyword: Flow Direction

Theme_Keyword: Reach Catchment Seedpoints

Theme_Keyword: Reach Catchments

Theme_Keyword: Shaded Relief

Theme_Keyword: Sinks

Theme_Keyword: Slope

Theme_Keyword: Synthetic Streamlines

Theme_Keyword: Cartography

Theme_Keyword: Digital Mapping

Theme_Keyword: FARMING

Theme_Keyword: BIOTA

Theme_Keyword: ELEVATION

Theme_Keyword: ENVIRONMENT

Theme_Keyword: GEOSCIENTIFIC INFORMATION

Theme_Keyword: IMAGERY/BASE MAPS/EARTH COVER

Theme_Keyword: INLAND WATERS

Theme_Keyword: PLANNING CADASTRE

Theme_Keyword: ENGLISH

Place:

Place_Keyword_Thesaurus: GCMD

Place_Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA

Access_Constraints: Not Available

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.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: EROS CENTER

Contact_Position: TECHNICAL CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Address: LTA Customer Services

Address: U.S. Geological Survey

Address: EROS Center

Address: 47914 252nd Street

City: Sioux Falls

State_or_Province: SD

Postal_Code: 57198-0001

Country: USA

Contact_Voice_Telephone: 605-594-6151

Contact_Voice_Telephone: 800-252-4547

Contact_Facsimile_Telephone: 605-594-6589

Contact_Electronic_Mail_Address: lta@usgs.gov

Browse_Graphic:

Browse_Graphic_File_Name: http://edna.usgs.gov/Edna/images/wash_fig4.gif

Browse_Graphic_File_Description:

Browse_Graphic_File_Type: GIF

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

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.

Logical_Consistency_Report:

Not Available

Completeness_Report:

Not Available

Lineage:

Process_Step:

Process_Description:

Not Available

Process_Date: Unknown

Spatial_Reference_Information:

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: DOI/USGS/EROS > Earth Resources Observation and Science Center, U.S. Geological Survey, U.S. Department of the Interior

Contact_Person: EROS CENTER

Contact_Position: DATA CENTER CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Address: LTA Customer Services

Address: U.S. Geological Survey

Address: EROS Center

Address: 47914 252nd Street

City: Sioux Falls

State_or_Province: SD

Postal_Code: 57198-0001

Country: USA

Contact_Voice_Telephone: 605-594-6151

Contact_Voice_Telephone: 800-252-4547

Contact_Facsimile_Telephone: 605-594-6589

Contact_Electronic_Mail_Address: lta@usgs.gov

Resource_Description: USGS_EDNA

Distribution_Liability:

Not Available

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://eros.usgs.gov/

Access_Instructions:

DATA CENTER URL

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://edna.usgs.gov/Edna/samples/washita.asp

Access_Instructions:

Sample Data: Elevation Derivatives for National Applications (EDNA) Upper Washita Cataloging Unit Processing Overview.

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://gcmd.nasa.gov/getdif.htm?USGS_NED

Access_Instructions:

USGS National Elevation Dataset.

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://gcmd.nasa.gov/getdif.htm?USGS_EPA_NHD

Access_Instructions:

The National Hydrography Dataset.

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://gisdata.usgs.net/website/EDNA/viewer.php

Access_Instructions:

Elevation Derivatives for National Applications (EDNA) interactive map service.

Fees: No Fees

Metadata_Reference_Information:

Metadata_Date: 20060111

Metadata_Review_Date: 20060410

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: TYLER B. STEVENS

Contact_Position: DIF AUTHOR

Contact_Address:

Address_Type: Mailing and Physical Address

Address: NASA Goddard Space Flight Center

Address: Global Change Master Directory

City: Greenbelt

State_or_Province: MD

Postal_Code: 20771

Country: USA

Contact_Voice_Telephone: (301) 614-6898

Contact_Facsimile_Telephone: 301-614-5268

Contact_Electronic_Mail_Address: Tyler.B.Stevens@nasa.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time