Pohnpei Elevation Contours at 50-meter Interval (derived from 10-meter DEM)

Metadata:

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

Identification_Information:

Citation:

Citation_Information:

Originator:

U.S. Department of Agriculture (USDA) Natural Resources Conservation Services, National Cartography & Geospatial Center

Originator: University of Guam - Pacific Islands Climate Science Center

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

Publication_Date: 20170717

Title:

Pohnpei Elevation Contours at 50-meter Interval (derived from 10-meter DEM)

Geospatial_Data_Presentation_Form: vector digital data

Description:

Abstract:

This dataset shows the elevation of Pohnpei and its lagoon islands at 50-meter intervals. It was derived from the Digital Elevation Model (DEM) with a resolution of 1/3 arc-second (approximately 10 meters), created by U.S. Geological Survey based on topography compiled in 1975. It is part of the National Elevation Dataset (NED) and also shown on the 2001 topographic map. The NED serves the elevation layer of The National Map, and provides basic elevation information for earth science studies and mapping applications in the United States. Scientists and resource managers use NED data for global change research, hydrologic modeling, resource monitoring, mapping and visualization, and many other applications. The NED is an elevation dataset that consists of seamless layers and a high resolution layer. Each of these layers are composed of the best available raster elevation data of the conterminous United States, Alaska, Hawaii, territorial islands, Mexico and Canada. The NED is updated continually as new data become available. All NED data are in the public domain. The NED are derived from diverse source data that are processed to a common coordinate system and unit of vertical measure.

Purpose: To show the elevation contour lines on Pohnpei.

Supplemental_Information:

The dataset is included the Digital Atlas of Micronesia, module Pohnpei, by Island Research & Education Initiative (iREi), in collaboration with Water and Environmental Research Institute of the Western Pacific (WERI) University of Guam and partial funding from United States Geological Survey (USGS), under WRRI 104-B Program, project # 2016GU302B.

Time_Period_of_Content:

Time_Period_Information:

Multiple_Dates/Times:

Single_Date/Time:

Calendar_Date: 19750101

Single_Date/Time:

Calendar_Date: 20161111

Currentness_Reference: Year topography was compiled

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: 158.103407

East_Bounding_Coordinate: 158.363952

North_Bounding_Coordinate: 7.011670

South_Bounding_Coordinate: 6.763298

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: contour

Theme_Keyword: isolines

Theme_Keyword: elevation

Theme_Keyword: terrain elevation

Theme_Keyword: topography

Theme_Keyword: topographic surface

Theme_Keyword: 1/3 arc-second DEM

Theme_Keyword: Grid

Theme_Keyword: Raster

Theme_Keyword: National Elevation Dataset

Theme_Keyword: NED

Theme_Keyword: Digital Elevation Model

Theme_Keyword: DEM

Theme_Keyword: U.S. Geological Survey

Theme_Keyword: USGS

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Categories

Theme_Keyword: elevation

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: Pohnpei

Place_Keyword: Federated States of Micronesia (FSM)

Place_Keyword: U.S. Affiliated Pacific Islands (USAPI)

Place_Keyword: Caroline Islands

Place_Keyword: Micronesia

Place_Keyword: Northwestern Pacific

Place_Keyword: Pacific Ocean

Access_Constraints: None

Use_Constraints:

There are no expressed warranties associated with the release of these databases. Specifically, no warranty is made that the GIS data or any subsequent updates will be error free and no warranty is made regarding the positional or thematic accuracy of the GIS data. The GIS data and any features it depicts do not represent or confer any legal rights, privileges, benefits, boundaries or claims of any kind.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

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

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USDA Natural Resources Conservation Service

Contact_Person: National Cartography & Geospatial Center

Contact_Address:

Address_Type: unknown

Address: 501 W. Felix St.

City: Fort Worth

Postal_Code: 76115

Country: US

Contact_Voice_Telephone: 817-509-3400

Contact_Facsimile_Telephone: 817-509-3469

Data_Set_Credit:

U.S. Geological Survey (USGS), EROS Data Center; U.S. Department of Agriculture (USDA) Natural Resources Conservation Services, National Cartography & Geospatial Center; University of Guam - Pacific Islands Climate Science Center.

Native_Data_Set_Environment: Version 6.2 (Build 9200) ; Esri ArcGIS 10.2.2.3552

Data_Quality_Information:

Lineage:

Process_Step:

Process_Description:

The data is acquired from USGS as Oracle Transportable Tablespaces. It is loaded to NCGC SDE servers and extracted in a UTM projection by gateway ArcObjects services.

Source_Used_Citation_Abbreviation: National Elevation Dataset

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USDA Natural Resources Conservation Service

Contact_Person: National Cartography & Geospatial Center

Contact_Address:

Address_Type: unknown

Address: 501 W. Felix St.

City: Fort Worth

Postal_Code: 76115

Country: US

Contact_Voice_Telephone: 817-509-3400

Contact_Facsimile_Telephone: 817-509-3469

Process_Step:

Process_Description:

1. Merged single .tif files (total of eight) into single file; 2. Clipped data; 3. Shifted data about 26 meters WNW to better match other updated base data; 4. Created metadata based on original metadata informtion supplied as html document.

Source_Used_Citation_Abbreviation: National Elevation Dataset 10 Meter 7.5x7.5 minute quadrangles

Process_Date: 20161222

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: University of Guam

Contact_Person: Maria Kottermair

Contact_Position: Geospatial Coordinator

Contact_Electronic_Mail_Address: mariakottermair@triton.uog.edu

Process_Step:

Process_Description:

1. Created contour lines from raster; 2. Replaced zero elevation contour with updated shoreline. 3. Formatted attribute table.

Process_Date: 20170125

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: University of Guam

Contact_Person: Maria Kottermair

Contact_Position: Geospatial Coordinator

Contact_Electronic_Mail_Address: mariakottermair@triton.uog.edu

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Complete chain

Point_and_Vector_Object_Count: 523

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: Complete chain

Point_and_Vector_Object_Count: 523

Raster_Object_Information:

Raster_Object_Type: Grid Cell

Row_Count: 3514

Column_Count: 3383

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: phn_contours_50m

Attribute:

Attribute_Label: Source

Attribute:

Attribute_Label: ID

Attribute:

Attribute_Label: FID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: Esri

Attribute_Domain_Values:

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Contour_m

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: Esri

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: Length_m

Overview_Description:

Entity_and_Attribute_Overview:

ArcInfo Grid - Cell Size: one arc-second Data type: floating point Number of Rows: varies Number of Lines: varies Projection: UTM Datum: NAD83 Horizontal Units: meters Zunits: meters ArcView Shapefile - Three File Types: .dbf. shp. shx, prj Enhanced Shaded Relief - tif and tfw files as geotiff ned30m_metadata.xml ned30m_metadata.html ned30m_readme.txt USGS_NED10m_factsheet.pdf

Entity_and_Attribute_Detail_Citation:

U.S. Department of the Interior, U.S. Geological Survey, 1998, Standards for Digital Elevation Models: Reston, VA. Softcopy in Adobe Acrobat Portable Document File (PDF) format: <http://rockyweb.cr.usgs.gov/nmpstds/demstds.html>

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Island Research & Education Initiative (iREi)

Contact_Address:

Address_Type: mailing

Address: P.O. Box PS 303

City: Palikir

State_or_Province: Pohnpei

Postal_Code: 96941

Country: FM

Contact_Voice_Telephone: 691.320.5212

Contact_Electronic_Mail_Address: irei@islandresearch.org

Distribution_Liability: See access and use constraints information.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: www.islands.fm/atlas/#/pohnpei-state

Metadata_Reference_Information:

Metadata_Date: 20170715

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: University of Guam

Contact_Person: Maria Kottermair

Contact_Position: Geospatial Coordinator

Contact_Electronic_Mail_Address: mariakottermair@triton.uog.edu

Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Use_Constraints: