Extent of northern Guam

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Publication_Date: 2013
Title: Extent of northern Guam
Edition: first
Geospatial_Data_Presentation_Form: vector digital data
Originator: Water & Environmental Research Institute, University of Guam
Online_Linkage: <http://north.hydroguam.net>
Description:
Abstract:
This dataset shows the extent of northern Guam, as defined by the shoreline (Source: NOAA Coastal Services Center in 2006) and the Pago-Adelup fault, which separates the northern from the southern half of the island (Source: Geologic Map of Guam by Siegrist, H.G. and Reagan, M. 2008).
Purpose: This dataset shows the extent of northern Guam.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20001017
Ending_Date: 20010602
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: 144.617946
East_Bounding_Coordinate: 144.956951
North_Bounding_Coordinate: 13.654423
South_Bounding_Coordinate: 13.233998
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Shoreline
Theme_Keyword: Shoreline vectorization
Theme_Keyword: northern Guam
Theme_Keyword: Pago-Adelup fault
Theme_Keyword: extent
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Guam
Place_Keyword: U.S. Territory
Place_Keyword: Mariana Islands
Place_Keyword: Micronesia
Place_Keyword: Western Pacific
Place_Keyword: Northwest Pacific
Place_Keyword: Pacific Islands
Access_Constraints: none
Use_Constraints:
This dataset is for general information and educational purposes only and not for use in litigation. It contains no authoritative positional or other data. The Water & Environmental Research Institute (WERI) cannot assume liability for any damages or misrepresentations caused by any inaccuracies in the data or as a result of the data to be in a particular system.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Water & Environmental Research Institute, University of Guam
Contact_Position: Staff Hydrologist
Contact_Voice_Telephone: (671) 735-2693
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.3.1.3000
Data_Set_Credit: Water & Environmental Research Institute, University of Guam
Data_Quality_Information:
Logical_Consistency_Report:
These data are believed to be logically consistent, though no tests were performed. All arcs were snapped by the nodes to create consistantly tied strings without node dangles. Line geometry is topologically clean.
Completeness_Report:
This shoreline dataset of Guam is dependent on the shoreline as delineated on 2001 IKONOS digital satellite imagery from Space Imaging, LLC. The position of the shoreline might change as the natural land changes or better maps and more current aerial photography become available.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Shoreline: the data were created by delineating the shoreline off of IKONOS panchromatic digital satellite imagery collected in 2000 - 2001. The horizontal resolution of the digital imagery is 1 meter. The original scale of the imagery was 1:3780. During orthorectification of the IKONOS imagery, 73 ground control points were used to determine the circular error (CE) at a 90% confidence level. For Pacific Islands, Guam, IKONOS data, 2002 the circular error is 8.5 meters for the Panchromatic data set.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: None
Lineage:
Process_Step:
Process_Description:
During the vectorization process, the satellite imagery was displayed on a computer screen using ESRI's ArcGIS 8.2 software. In order to obtain the highest degree of accuracy from the imagery, the one-meter panchromatic imagery was used as a base layer for digitizing. In an effort to better visualize the land-water interface, the one-meter imagery was overlaid on top of the four-meter multispectral imagery using a 35 % transparency value. The near-infrared band (Band 4) was used in the display of the multispectral imagery. The resultant base layer contained the one-meter resolution of the panchromatic imagery and the colorization of the four-meter imagery. The display was zoomed to the image resolution of the panchromatic imagery and the shoreline was manually digitized. Areas of the shoreline that were obscured by cloud cover were digitized from USGS DRGs. All lines are coded with length, ID, origin, and source. The areas of the shoreline obscured by cloud cover were corrected and digitized by utilizing USGS Digital Ortho Quad Photos.
Known problems: The USGS DRGs for Guam had to be adjusted in the x and y directions using ERDAS Imagine 8.5 to match the IKONOS imagery.
Process_Date: 20020905 - 20020923
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Coastal Services Center
Contact_Position: Pacific Islands GIS Specialist
Contact_Address:
Address_Type: mailing and physical address
Address: 2234 South Hobson Avenue
City: Charleston
State_or_Province: South Carolina
Postal_Code: 29405
Country: USA
Contact_Voice_Telephone: 843-740-1200
Contact_Facsimile_Telephone: 843-740-1224
Contact_Electronic_Mail_Address: csc@csc.noaa.gov
Hours_of_Service: Monday through Friday, 8 a.m to 5 p.m., Eastern Standard Time
Process_Step:
Process_Description:
Further modification of the Guam shoreline was conducted by staff within the Coastal Management Program. ArcView 3.2 was used to adjust shapefile vector vertices. Most alterations were done by combining the visual information available within the one-meter panchromatic imagery of Guam together with local knowledge of the coastline , and some DOQ data from NPS through USGS. Metadata was updated using ArcGIS 8.2 software.
Process_Date: 20011113
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: James Byrne
Contact_Organization: Guam Coastal Management Program
Contact_Address:
Address_Type: mailing address
Address: P.O Box 2950
City: Hagatna
State_or_Province: Guam
Postal_Code: 96932
Country: USA
Contact_Voice_Telephone: 671-472-4201
Contact_Facsimile_Telephone: 671-477-1812
Contact_Electronic_Mail_Address: jbyrne@mail.gov.gu
Process_Step:
Process_Description:
Clip shoreline of Guam using the Pago Adelup fault line. Delete Southern Guam.
Process_Contact:
Contact_Information:
Contact_Position: Research Assistant III
Contact_Electronic_Mail_Address: mariakottermair@uguamlive.uog.edu
Contact_Person_Primary:
Contact_Person: Maria Kottermair
Contact_Organization: Water & Environmental Research Institute, University of Guam
Process_Date: 20130830
Source_Information:
Source_Citation:
Citation_Information:
Title: Vectorized Shoreline of Guam, Derived from IKONOS, 2002
Originator:
United States Department of Commerce, National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC)
Publication_Date: 20021202
Other_Citation_Details:
The vectorized shoreline data was derived from the one-meter panchromatic IKONOS imagery. Those areas of the coastline that were obscured by cloud cover were derived from United States Geological Survey (USGS) Digital Raster Graphics (DRGs).
Source_Information:
Source_Citation:
Citation_Information:
Title: Pago-Adelup fault
Originator: Water & Environmental Research Institute, University of Guam
Publication_Date: 2012
Cloud_Cover: < 10 %
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000000
Ordinate_Resolution: 0.000000
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: northern_guam_extent
Attribute:
Attribute_Label: OBJECTID
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: Name
Attribute:
Attribute_Label: Area_m2
Attribute:
Attribute_Label: Area_km2
Attribute:
Attribute_Label: Area_ac
Attribute:
Attribute_Label: Area_mi
Attribute:
Attribute_Label: Perimtr_m
Attribute:
Attribute_Label: Perimtr_km
Attribute:
Attribute_Label: Perimtr_mi
Attribute:
Attribute_Label: Shape_Length
Attribute_Definition: Length of feature in internal units.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain: Positive real numbers that are automatically generated.
Attribute:
Attribute_Label: Shape_Area
Attribute_Definition: Area of feature in internal units squared.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain: Positive real numbers that are automatically generated.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NOAA Coastal Services Center
Contact_Position: Clearinghouse Manager
Contact_Address:
Address_Type: mailing and physical address
Address: 2234 South Hobson Avenue
City: Charleston
State_or_Province: SC
Postal_Code: 29405
Country: USA
Contact_Voice_Telephone: 843-740-1200
Contact_Facsimile_Telephone: 843-740-1224
Contact_Electronic_Mail_Address: clearinghouse@csc.noaa.gov
Hours_of_Service: Monday through Friday, 8 a.m. to 5 p.m., Eastern Standard Time
Resource_Description: Special Purpose Dataset
Distribution_Liability:
Users must assume responsibility to determine the appropriate use fo these data.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_Size: 0.281
Fees: none
Ordering_Instructions: Data is not available for purchase
Turnaround: none
Custom_Order_Process: none
Technical_Prerequisites: none
Metadata_Reference_Information:
Metadata_Date: 20130830
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Water & Environmental Research Institute, University of Guam
Contact_Person: Maria Kottermair
Contact_Position: Research Assitant
Contact_Electronic_Mail_Address: mariakottermair@uguamlive.uog.edu
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Lineage:
Generated by mp version 2.9.3 on Sun Oct 20 21:31:27 2013