Identification_Information: Citation: Citation_Information: Originator: Florence L. Wong Publication_Date: 2007 Title: marshallsc - 200-m contours extracted from gridded bathymetric data for the Republic of the Marshall Islands Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: USGS Miscellaneous Field Studies Map Issue_Identification: MF 2324 Online_Linkage: http://pubs.usgs.gov/mf/1999/2324/ Description: Abstract: 200-m contours extracted from gridded bathymetric data for the Republic of the Marshall Islands Purpose: These data are intended for science researchers, students, policy makers, and the general public. The data can be used with geographic information systems (GIS) software to display geologic and oceanographic information. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1998 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: 153.000003 East_Bounding_Coordinate: 174.999401 North_Bounding_Coordinate: 17.002898 South_Bounding_Coordinate: 2.999995 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: bathymetry Place: Place_Keyword_Thesaurus: None Place_Keyword: Republic of the Marshall Islands Access_Constraints: None. Use_Constraints: These data are not to be used at scales greater than 1:1,000,000. Not intended for navigation use. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Florence L. Wong Contact_Organization: U.S. Geological Survey (USGS) Coastal and Marine Geology (CMG) Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 345 Middlefield Road, MS 999 City: Menlo Park State_or_Province: California Postal_Code: 94025-3561 Country: USA Contact_Voice_Telephone: 650-329-5327 Contact_Facsimile_Telephone: 650-329-5190 Contact_Electronic_Mail_Address: fwong@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/mf/1999/2324/images/marshzoom.jpg Browse_Graphic_File_Description: preview image of report Browse_Graphic_File_Type: JPEG Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.2.1350 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The bathymetry and coastline data and other line data were merged and edited in ARC/INFO, which caused some edge-matching problems among the data sets. The new USGS-KORDI survey bathymetry data were desampled to a 250-m spacing. A buffer zone 4500 m to either side of the new data was used to mask out the underlying two-minute data. The resulting data sets were combined to construct a surface according to the triangular irregular network (TIN) model supported by ARC/INFO. The data were gridded on 1000-m grid cells with a smoothing (quintic) option. Contours were extracted at 200-m intervals. Final map was compiled and edited in Adobe Illustrator, v. 8.0.1. Logical_Consistency_Report: Chain-node topology present. Completeness_Report: Complete Lineage: Process_Step: Process_Description: Extracted shapefiles for 200-m contours extracted from Marshall Islands grid. Removed depression contours from southern Kwajalien per inspection of latest version of ETOPO2 data http://www.ngdc.noaa.gov/mgg/fliers/06mgg01.html. Parent grid unchanged. Process_Date: 20070426 Process_Step: Process_Description: Metadata imported. Process_Date: 20070427 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: 6976 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.001 Longitude_Resolution: 0.001 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: D_WGS_1984 Ellipsoid_Name: WGS_1984 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257224 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: > CONTOUR integer, water depth > HATCH flag for type of contours: > 0 unflagged > 1 contours around depressions > 2 contours around local maximum > 3 unknown, identifies long regional contours > 4 unknown, flags long contour in northwest Entity_and_Attribute_Detail_Citation: none Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey (USGS) and Coastal and Marine Geology (CMG) Contact_Person: Florence L. Wong Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 345 Middlefield Road, MS 999 City: Menlo Park State_or_Province: California Postal_Code: 94025-3561 Country: USA Contact_Voice_Telephone: 650-329-5327 Contact_Facsimile_Telephone: 650-329-5190 Contact_Electronic_Mail_Address: fwong@usgs.gov Resource_Description: Downloadable Data Distribution_Liability: Please recognize the U.S. Geological Survey (USGS) as the source of this information. Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of this data, software, or related materials. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ARCE Format_Version_Number: 9.2 Format_Specification: Arcinfo shapefile File_Decompression_Technique: unzip Transfer_Size: 3.491 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/mf/1999/2324/ Fees: None Ordering_Instructions: Download from http://pubs.usgs.gov/mf/1999/2324/ Metadata_Reference_Information: Metadata_Date: 20070427 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: United States Geological Survey (USGS) Coastal and Marine Geology (CMG) Contact_Person: Florence L. Wong Contact_Position: Geologist, GIS Coordinator Contact_Address: Address_Type: mailing and physical address Address: USGS, MailStop 999, 345 Middlefield Road City: Menlo Park State_or_Province: CA Postal_Code: 94025-3561 Country: USA Contact_Voice_Telephone: (650) 329-5327 Contact_Facsimile_Telephone: (650) 329-5190 Contact_Electronic_Mail_Address: fwong@usgs.gov 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 Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile