Identification_Information: Citation: Citation_Information: Originator: United States Department of Commerce, National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC) Publication_Date: 20020807 Title: Vectorized Shoreline of Tutuila,Ofu, Olosega, Rose, Swains, and Ta'u American Samoa, Derived from IKONOS Imagery, 2002 Edition: first Geospatial_Data_Presentation_Form: vector digital data Publication_Information: Publication_Place: Charleston, SC Publisher: United States Department of Commerce, National Oceanic and Atmospheric Administration, National Ocean Service, Coastal Services Center 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) Online_Linkage: Description: Abstract: IKONOS imagery was purchased to support the Pacific Islands Geographic Information System (GIS) project and the National Ocean Service's (NOS) coral mapping activities. One-meter panchromatic and four-meter multi-spectral data were purchased for each study area. A digital vector shoreline was manually digitized from the one-meter panchromatic imagery to provide accurate, up-to-date shoreline data. Purpose: The Pacific Islands Geographic Information System (GIS) project is a multiyear initiative designed to increase the use of GIS and related spatial technology in the coastal resource management programs of the Terrorities of American Samoa and Guam, the Commonwealth of the Northern Mariana Islands (CNMI), and the State of Hawaii. The project will focus on personnel, training, equipment, software, data, and applications. Where appropriate, other related activities in the region will be incorporated into the effort. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20010101 Ending_Date: 20011202 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: 490166.000 East_Bounding_Coordinate: 807865.375 North_Bounding_Coordinate: 8778729.000 South_Bounding_Coordinate: 8389662.000 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Shoreline Theme_Keyword: Vectorization Theme_Keyword: Shoreline vectorization Theme_Keyword: Shoreline data Theme_Keyword: Pacific Islands GIS Theme_Keyword: IKONOS Place: Place_Keyword_Thesaurus: None Place_Keyword: Pacific Islands Place_Keyword: Coastal Zone Place_Keyword: Tutuila Place_Keyword: Ofu Place_Keyword: Olosega Place_Keyword: Swains Place_Keyword: Rose Place_Keyword: Ta'u Place_Keyword: American Samoa Place_Keyword: Oceana Place_Keyword: United States Access_Constraints: none Use_Constraints: Data set is not for use in litigation. While efforts have been made to ensure that these data are accurate and reliable within the state of the art, NOAA, cannot assume liability for any damages, or misrepresentations, caused by any inaccuracies in the data, or as a result of the data to be used on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. Point_of_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 Native_Data_Set_Environment: Microsoft Windows NT Version 4.0 (Build 1381) Service Pack 6; ESRI ArcCatalog 8.2.0.700 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 Tutuila 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: The data were created by delineating the shoreline off of IKONOS panchromatic digital satellite imagery collected in 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, 60 ground control points were used to determine the circular error (CE) at a 90% confidence level. For Pacific Islands, Tutuila, American Samoa, IKONOS data, 2001 the circular error is 2.7 meters for the Panchromatic data set. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: None Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Space Imaging Incorporated Publication_Date: 20010101, 20010101, 20010101, 20011107, 20011202, and 20011202 Title: IKONOS Panchromatic Satellite Imagery Geospatial_Data_Presentation_Form: remote-sensing image Publication_Information: Publication_Place: Thornton, CO Publisher: Space Imaging Online_Linkage: http://www.spaceimaging.com Source_Scale_Denominator: 3780 Type_of_Source_Media: CD-ROM Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20010101 Ending_Date: 20011202 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: IKONOS Source_Contribution: CSC Pacific Islands GIS Program Source_Information: Source_Citation: Citation_Information: Originator: United States Geological Survey Publication_Date: 19980226 Title: Manua Islands Digital Raster Graphic (DRG) Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Reston, VA Publisher: USGS Online_Linkage: http://mapping.usgs.gov Source_Scale_Denominator: 24000 Type_of_Source_Media: CD-ROM Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 19980226 Source_Currentness_Reference: ground condition Source_Contribution: CSC Pacific Islands GIS Program 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 Known problems: The USGS DRG for Manua had to be adjusted in the x and y directions using ERDAS Imagine 8.5 to match the IKONOS imagery. Process_Date: 20020715 - 20020802 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: The completed shoreline dataset was sent to the on-island technical assistant in American Samoa for review and adjustment. Using the same IKONOS imagery and DRG datasets, as well as GPS data and personal knowledge of the subject area, the technical assistant was able to make adjustments to the shoreline. These adjustments were needed in areas where the land-water interface was unable to be determined clearly due to cloud cover or shadow. Process_Date: 20020809 - 20020827 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Kevin Cronk Contact_Organization: Territory of American Samoa, Department of Commerce, Coastal Zone Management Program Contact_Position: GIS Assistant Contact_Address: Address_Type: mailing address Address: P.O. Box 4609 City: Pago Pago State_or_Province: American Samoa Postal_Code: 96799 Country: USA Contact_Voice_Telephone: 011-684-633-5155 Contact_Facsimile_Telephone: 011-684-633-4195 Contact_Electronic_Mail_Address: kcronk@doc.asg.as Cloud_Cover: < 10 % Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 219 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Transverse Mercator Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -171.000000 Latitude_of_Projection_Origin: 0.000000 False_Easting: 500000.000000 False_Northing: 10000000.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000064 Ordinate_Resolution: 0.000064 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: D_North_American_1983_HARN 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: tutu_final_nad83harn Entity_Type_Definition: Polyline shapefile Entity_Type_Definition_Source: NOAA Coastal Service Center 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: Id Attribute_Definition: Feature identification number Attribute_Definition_Source: NOAA Coastal Services Center Attribute_Domain_Values: Unrepresentable_Domain: Software generated Attribute: Attribute_Label: Length Attribute_Definition: Length of shoreline polyline segments Attribute_Definition_Source: NOAA Coastal Services Center Attribute_Domain_Values: Unrepresentable_Domain: Software generated Attribute: Attribute_Label: Origin Attribute_Definition: Origin of shoreline data Attribute_Definition_Source: NOAA Coastal Services Center Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: NOAA Coastal Services Center Enumerated_Domain_Value_Definition_Source: NOAA Coastal Services Center Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: American Samoa Coastal Zone Management Program Enumerated_Domain_Value_Definition_Source: NOAA Coastal Services Center Attribute: Attribute_Label: Source Attribute_Definition: Source of shoreline data Attribute_Definition_Source: NOAA Coastal Services Center Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: 1 Enumerated_Domain_Value_Definition: One meter panchromatic IKONOS digital satellite imagery Enumerated_Domain_Value_Definition_Source: NOAA Coastal Services Center Enumerated_Domain: Enumerated_Domain_Value: 2 Enumerated_Domain_Value_Definition: USGS Digital Raster Graphics (DRG) Enumerated_Domain_Value_Definition_Source: NOAA Coastal Services Center Enumerated_Domain: Enumerated_Domain_Value: 3 Enumerated_Domain_Value_Definition: Other source (GPS, local knowledge of ground condition) Enumerated_Domain_Value_Definition_Source: NOAA Coastal Services Center 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: 0.448 Fees: none Ordering_Instructions: Data is not available for purchase Turnaround: none Custom_Order_Process: none Technical_Prerequisites: none Metadata_Reference_Information: Metadata_Date: 20021122 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: NOAA Coastal Services Center Contact_Person: Metadata Specialist Contact_Position: Metadata 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 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