National Elevation Dataset (Kosrae)

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

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

Publication_Date: 1999

Title: National Elevation Dataset (Kosrae)

Geospatial_Data_Presentation_Form: raster digital data

Publication_Information:

Publication_Place: Sioux Falls, SD

Publisher: U.S. Geological Survey

Online_Linkage: \\thunder\array\projects\pacisl\kosrae\raster\ppt_x100

Description:

Abstract:

The U.S. Geological Survey has developed a National Elevation Dataset (NED). The NED is a seamless mosaic of best-available elevation data. The 7.5-minute elevation data for the conterminous United States are the primary initial source data. In addition to the availability of complete 7.5-minute data, efficient processing methods were developed to filter production artifacts in the existing data, convert to the NAD83 datum, edge-match, and fill slivers of missing data at quadrangle seams. One of the effects of the NED processing steps is a much-improved base of elevation data for calculating slope and hydrologic derivatives. The specifications for the NED 1 arc second and 1/3 arc second data are: Geographic coordinate system Horizontal datum of NAD83, except for AK which is NAD27 Vertical datum of NAVD88, except for AK which is NAVD29 Z units of meters

The PRISM Group at Oregon State University first converted all elevation DEM values that were between zero and one to the whole integer value of one. Then we converted all values to the nearest whole integer, and last we applied a Gaussian filter (Barnes, S.L. 1964: A technique for maximizing details in numerical weather map analysis. J. Appl. Meteorol., 3, 396-409.) to the original NED 1 arc second DEM creating a 3 arc second version of the DEM that was used in our modeling process. Additionally the original NED dataset did not contain the airport, which is located west of the island just offshore. The airport was digitized by hand from geo-referenced aerial imagery (for greater detail on the aerial imagery see <http://ccma.nos.noaa.gov/products/biogeography/us_pac_terr/htm/data.htm> ). The airport field elevation was assigned using the same elevation as the weather observation station at that location.

Purpose:

Geospatial elevation data are utilized by the scientific and resource management communities for global change research, hydrologic modeling, resource monitoring, mapping, and visualization applications.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19990201

Beginning_Time: unknown

Currentness_Reference: publication date

Status:

Progress: In work

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: 163.1446

East_Bounding_Coordinate: 162.83972199999999

North_Bounding_Coordinate: 5.3960400000000002

South_Bounding_Coordinate: 5.2194440000000002

Keywords:

Theme:

Theme_Keyword_Thesaurus: GCMD Parameter Keywords

Theme_Keyword: EARTH SCIENCE

Access_Constraints: None

Use_Constraints: None

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Chris Daly or Mike Halbleib

Contact_Address:

Address_Type: mailing address

Address: Strand Ag Hall 326, PRISM Group, Oregon State University

City: Corvallis

State_or_Province: Oregon

Postal_Code: 97331-2209

Country: USA

Contact_Voice_Telephone: (541) 737-2531

Contact_Facsimile_Telephone: (541) 737-5710

Contact_Electronic_Mail_Address: halbleib@coas.oregonstate.edu

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.780

Data_Quality_Information:

Lineage:

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:

Raster_Object_Type: Grid Cell

Row_Count: 212

Column_Count: 366

Vertical_Count: 1

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Geographic_Coordinate_Units: Decimal degrees

Planar:

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: row and column

Coordinate_Representation:

Abscissa_Resolution: 0.000833

Ordinate_Resolution: 0.000833

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257222

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: Elevation (z value)

Entity_Type_Definition: Meters

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Chris Daly or Mike Halbleib

Contact_Organization: PRISM Group

Contact_Address:

Address_Type: mailing address

Address: Strand Ag Hall 326, PRISM Group, Oregon State University

City: Corvallis

State_or_Province: Oregon

Postal_Code: 97331

Country: USA

Contact_Voice_Telephone: 541-737-2531

Contact_Electronic_Mail_Address: halbleib@coas.oregonstate.edu

Resource_Description: Downloadable Data

Distribution_Liability:

This digital data set publication was prepared by the PRISM Group. Neither the PRISM Group nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or misuse of the data, or for damage, transmission of viruses or computer contamination through the distribution of these data sets or for the usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the PRISM Group or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the PRISM Group or any agency thereof.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Transfer_Size: 0.087

Metadata_Reference_Information:

Metadata_Date: 20061115

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: PRISM Group

Contact_Person: Mike Halbleib

Contact_Address:

Address_Type: Strand Ag Hall 326, PRISM Group, Oregon State University

City: Corvallis

State_or_Province: Oregon

Postal_Code: 97331-2209

Contact_Voice_Telephone: 541-737-2531

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile