Pohnpei Shoreline

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. Geological Survey, Western Geographic Science Center

Originator: University of Guam

Publication_Date: 20050101

Title: Pohnpei Shoreline

Geospatial_Data_Presentation_Form: vector digital data

Online_Linkage: <http://www.islands.fm/atlas/#/pohnpei-state>

Description:

Abstract:

This dataset shows the shoreline of Pohnpei's main island and lagoon islands. The original data, so-called Digital Line Graphs (DLSs), were created by U.S. Geological Survey (USGS) for the 1:25,000-scale topographic maps (2001). The shoreline was modified by University of Guam (UOG) (2017) based on 2016 Worldview-3 satellite imagery from Digital Globe. It was slightly shifted and also updated (mainly around Kolonia and its vicinity).

Purpose: To show the shoreline of 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: 20010101

Single_Date/Time:

Calendar_Date: 20161111

Currentness_Reference: Publication date of original data.

Status:

Progress: Complete

Maintenance_and_Update_Frequency: Irregular

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: coastline

Theme_Keyword: shoreline

Theme_Keyword: hydrography

Theme_Keyword: Digital Line Graph

Theme_Keyword: DLG

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: University of Guam

Contact_Person: Maria Kottermair

Contact_Position: Geospatial Coordinator

Contact_Electronic_Mail_Address: mariakottermair@triton.uog.edu

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey

Contact_Person: Drew Decker

Contact_Position: National Map Liaison

Contact_Address:

Address_Type: unknown

Address: 4165 Spruance Road

City: San Diego

State_or_Province: CA

Postal_Code: 92101

Contact_Voice_Telephone: 619-225-6430

Contact_Electronic_Mail_Address: ddecker@usgs.gov

Data_Set_Credit:

Original dataset by U.S. Geological Survey (USGS) Partly updated by University of Guam (UOG)

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

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Attribute accuracy is tested by manual comparison of the source with hard copy plots and/or symbolized display of the digital line graph on an interactive computer graphic system. Through inspection and queries, attempts were made to ensure completeness and consistency of attribute values.

Logical_Consistency_Report:

Topological requirements include the following: lines must begin and end at nodes, lines must connect to each other at nodes, lines do not extend through nodes, left and right areas are defined for each line element and are consistent throughout the file, and lines representing the limits of the file (neatline) are free of gaps.

Completeness_Report:

The completeness of the data is unknown but should be consistent with the level of information normally shown on U.S. Geological Survey 1:24,000-scale topographic maps.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

The updated sections (mainly around Kolonia and Sokehs) are accurate within a few meters, the other areas are accurate within about 20-30 meters.

Quantitative_Horizontal_Positional_Accuracy_Assessment:

Horizontal_Positional_Accuracy_Explanation: Visual comparison with WorldView-3 satellite imagery.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey

Title: U.S. Geological Survey Digital Line Graph

Source_Scale_Denominator: 24000

Type_of_Source_Media: None

Source_Citation_Abbreviation: DLG

Process_Step:

Process_Description:

Delete neatlines and mosaic hydrography DLGs for the island. Data processed by Connie Hoong choong@usgs.gov, 808-587-2427 USGS, 677 Ala Moana Blvd., Suite 415, Honolulu, HI, 96816

Process_Step:

Process_Description:

1. Shifted dataset about 15.5 meters W to match WorldView-3 imagery (WV-3) better; 2. Updated shoreline around Kolonia, Sokehs and Nett based on WV-3 (Note: also updated selected areas where original shoreline went far inland but is covered with mangroves).

Process_Date: 20170121

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Maria Kottermair

Contact_Position: GIS Specialist

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: 319

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: phn_shoreline

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: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: Type

Attribute:

Attribute_Label: Source

Attribute_Definition: Source of original dataset.

Attribute:

Attribute_Label: Area_m2

Attribute_Definition: Area in square meters

Attribute:

Attribute_Label: Area_ac

Attribute_Definition: Area in acres

Attribute:

Attribute_Label: Perimtr_m

Attribute_Definition: Perimeter in meters

Attribute:

Attribute_Label: Perimtr_ft

Attribute_Definition: Perimeter in feet

Attribute:

Attribute_Label: Notes

Overview_Description:

Entity_and_Attribute_Detail_Citation:

The USGS document Standards for Digital Line Graphs, Part 3: Attribute Codes, contains a detailed description of each attribute code and a reference to the associated map symbols on the map source materials. The document is available at <http://rockyweb.cr.usgs.gov/nmpstds/acrodocs/dlg-3/3dlg0798.pdf>. Other DLG Standards are available from <http://rockyweb.cr.usgs.gov/nmpstds/dlgstds.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.

Metadata_Reference_Information:

Metadata_Date: 20170715

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey

Contact_Person: Henry Wolter

Contact_Position: Liaison, Hawaii and Pacific Basin Islands

Contact_Address:

Address_Type: mailing and physical

Address: 677 Ala Moana Blvd., Suite 415

City: Honolulu

State_or_Province: HI

Postal_Code: 96813

Country: US

Contact_Voice_Telephone: 808-587-2409

Contact_Facsimile_Telephone: 808-587-2401

Contact_Electronic_Mail_Address: hwolter@usgs.gov

Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time