Identification_Information: Citation: Citation_Information: Originator: Florence L. Wong Originator: James R. Hein Originator: Dan L. Mosier Publication_Date: 1999 Title: Gridded bathymetric data for the Republic of the Marshall Islands Edition: Version 1.3, April 30, 2007 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: USGS Miscellaneous Field Studies Map Issue_Identification: MF 2324 Publication_Information: Publication_Place: Menlo Park, CA Publisher: U.S. Geological Survey Online_Linkage: Description: Abstract: A bathymetric map of the Republic of the Marshall Islands and vicinity in the window latitude 3 to 17 degrees North, longitude 153 to 175 degrees East was compiled from surveys conducted by the U.S. Geological Survey (USGS), Korean Ocean Research and Development Institute (KORDI), and published gridded data. National jurisdictions and island and atoll coastlines are indicated. This bathymetric map of the Republic of the Marshall Islands was constructed from (1) unpublished data collected during recent surveys conducted by the USGS and KORDI (J.W. Moon and K.Y. Lee; Hein and others, in press), (2) the two-minute gridded satellite altimetry data from Smith and Sandwell (1997), and (3) coastline data from the Generic Mapping Tools (GMT) software (Wessel and Smith, 1995) and Chase and others (1984). The spellings of island, atoll, and seamount names follow the recommendation of the Republic of the Marshall Islands government and are consistent with those in the Marshallese-English dictionary, including the diacritical marks (Abo and others, 1976). We were provided a list of names for the seamounts by Alfred Capelle (Alele Museum and National Archives, now located at the College of the Marshall Islands), who solicited those traditional names from village leaders from the various islands. We applied the appropriate names to seamounts located within specifically defined sectors adjacent to the various atolls and islands. The names are primarily from Marshallese legends and the meaning of each is provided by Hein and others (1990). 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. Supplemental_Information: Files provided in zipped file- marsh200c.shp marshalls.txt marshalls.xyz marshallsg.asc marshallsg.prj Additional information about the field activities from which this data set was derived are available online at Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in ArcInfo format, this metadata file may include some ArcInfo-specific terminology. 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: 152.995 East_Bounding_Coordinate: 175.005 North_Bounding_Coordinate: 17.005 South_Bounding_Coordinate: 2.995 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: bathymetry Place: Place_Keyword_Thesaurus: None Place_Keyword: Republic of the Marshall Islands Place_Keyword: Adkup Atoll Place_Keyword: Aean-Kan Place_Keyword: Aelok Atoll Place_Keyword: Aeloninae Atoll Place_Keyword: Aelonlaplap Atoll Place_Keyword: Anewetak Atoll Place_Keyword: Arno Atoll Place_Keyword: Aur Atoll Place_Keyword: Bokak Atoll Place_Keyword: Butaritari Atoll Place_Keyword: Bwewa Kan Place_Keyword: Ellep Island Place_Keyword: Epoon Atoll Place_Keyword: Federated States of Micronesia Place_Keyword: Jalwoj Atoll Place_Keyword: Jebat Island Place_Keyword: Jebo Place_Keyword: Jebro Place_Keyword: Jemo Island Place_Keyword: Kiribati Place_Keyword: Kole Island Place_Keyword: Kosrae Island Place_Keyword: Kuwajleen Atoll Place_Keyword: Lae Atoll Place_Keyword: Lainjin Place_Keyword: Lajutokwa Place_Keyword: Lalibjet Place_Keyword: Lami Place_Keyword: Lawun-Pikaar Place_Keyword: Lemkein Place_Keyword: Lewa Place_Keyword: Lewonjoui Place_Keyword: Likelep Place_Keyword: Likiep Atoll Place_Keyword: Limalok Place_Keyword: Litakpooki Place_Keyword: Litormalu Place_Keyword: Lo-En (Hess) Place_Keyword: Lo-Wuliej Place_Keyword: Lobbadede Place_Keyword: Lojabon-Bar Place_Keyword: Lojemeja Place_Keyword: Lokkworkwor Place_Keyword: Lokoto-Nornor Place_Keyword: Lomilik Place_Keyword: Lomjenaelik Place_Keyword: Lomolka Place_Keyword: Lomtal Place_Keyword: Look Place_Keyword: Lotab Place_Keyword: Lukunor Atoll Place_Keyword: Maanjidep Place_Keyword: Majej Island Place_Keyword: Majro Atoll Place_Keyword: Maloelap Atoll Place_Keyword: Mij-Lep Place_Keyword: Mile Atoll Place_Keyword: Minto Reef Place_Keyword: Mwokil Atoll Place_Keyword: Nadikdik Atoll Place_Keyword: Namdik Atoll Place_Keyword: Namoluk Atoll Place_Keyword: Neen-Koiaak Place_Keyword: Ngtik Atoll Place_Keyword: North Laanmojanjan Place_Keyword: Nukuoro Atoll Place_Keyword: Olapahd Place_Keyword: Oroluk Atoll Place_Keyword: Pakin Atoll Place_Keyword: Pali Place_Keyword: Peto-En Place_Keyword: Pikaar Atoll Place_Keyword: Pikinni Atoll Place_Keyword: Pingelap Atoll Place_Keyword: Pohnpei Island Place_Keyword: Radik Place_Keyword: Rondik Atoll Place_Keyword: Ronlap Atoll Place_Keyword: Ruwituntun Place_Keyword: South Laanmojanjan Place_Keyword: Toke Atoll Place_Keyword: Ujae Atoll Place_Keyword: Ujlan Place_Keyword: Ujlan Atoll Place_Keyword: Utrok Atoll Place_Keyword: Wod-En Ion Place_Keyword: Wod-En Rok Place_Keyword: Wodejebato (Sylvania) Place_Keyword: Woden-Kopakut Place_Keyword: Wojja Atoll Place_Keyword: Wotto Atoll Access_Constraints: None Use_Constraints: These data are not to be used at scales greater than 1:1,000,000. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Florence L. Wong Contact_Organization: United States Geological Survey (USGS) Coastal and Marine Geology (CMG) 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 Native_Data_Set_Environment: SunOS, 5.8, sun4u UNIX ArcInfo version 8.0.2 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 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: Not applicable for raster data. Completeness_Report: Bathymetry was compiled from unpublished data collected during recent surveys conducted by the USGS and the Korean Ocean Research Development Institute of Hein and others (in press) and published two-minute gridded satellite altimetry data of Smith and Sandwell (1997). Coastline data was compiled from the Generic Mapping Tools software of Wessel and Smith (1995) and Chase and others (1984). Marshallese place names follow the recommendation of the Republic of the Marshall Islands government and are consistent with those in the Marshallese-English dictionary of Abo and others (1976). Seamount names were provided by Alred Capelle of Alele Museum and National Archives, who solicited those traditional names from village leaders from the various islands. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Not available. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Abo, Takaji Originator: Bender, Byron W. Originator: Capelle, Alfred Originator: Debrum, Tony Title: Marshallese-English Dictionary Publication_Date: 1976 Series_Information: Series_Name: Honolulu Issue_Identification: University of Hawaii Press Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1976 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Abo and others (1976) Source_Contribution: spelling of place names Source_Information: Source_Citation: Citation_Information: Originator: Chase, T.E. Originator: Seekins, B.A. Originator: Lund, K.E. Title: Marine physiography of the Marshall Islands Publication_Date: 1984 Series_Information: Series_Name: unpublished Issue_Identification: map Source_Scale_Denominator: 2500000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1984 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Chase and others (1984) Source_Contribution: coastline Source_Information: Source_Citation: Citation_Information: Originator: Hein, J.R. Originator: Kang, Jung-Keuk Originator: Schulz, M.S. Originator: Park, Byong-Kwon; Kirschenbaum, Herbert; Yoon, Suk-Hoon; Olson, R. L.; Smith, V. K.; Park, Dong-Won; Riddle, G. O.; Quinterno, P. J.; Lee, Yoon-Oh; Davis, A. S.; Kim, R. S.; Pringle, M. S.; Choi, Dong-Lim; Pickthorn, L. G.; Schlanger, S. O.; Duennebier, F. K.; Bergersen, D. D.; Lincoln, J. M. Title: Geological, geochemical, geophysical, and oceanographic data and interpretations of seamounts and co-rich ferromanganese crusts from the Marshall Islands, KORDI-USGS R.V. Farnella Cruise F10-89-CP Publication_Date: 1990 Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: 90-407 Other_Citation_Details: 246 p. :ill. (some col.), maps ;28 cm Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1990 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Hein and others (1990) Source_Contribution: bathymetry, tracklines Source_Information: Source_Citation: Citation_Information: Originator: Hein, J. R.; Moon, Jai-Woon; Lee, Kyeong-Yong Originator: Dowling, J. S.; Kim, Ki-Hyune; Burrows, Malia Originator: Park, S. H.; Choi, Youn-ji; Schuetze, A. A. Originator: Jung, H. S.; Kim, Hyun-Sub; Lee, G. C. Originator: Park, Cheong-Kee; Son, S. K.; Park, Chan-Young Publication_Date: 1999 Title: Co-rich Fe-Mn crusts from the Marshall Islands (Leg 1) and hydrothermal and hydrogenetic Fe-Mn deposits from Micronesia (Leg 2), KODOS 98-3 cruise, West Pacific Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: USGS Open-file Report Issue_Identification: 99-412 Other_Citation_Details: 63 p. :ill., maps (some col.) ;28 cm Publication_Information: Publication_Place: Menlo Park, CA Publisher: U.S. Geological Survey Type_of_Source_Media: paper report Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1999 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Hein and others (1999) Source_Contribution: bathymetry, tracklines Source_Information: Source_Citation: Citation_Information: Originator: Smith, W.H.F. Originator: Sandwell, D.T. Title: Global seafloor topography from satellite altimetry and ship depth soundings Publication_Date: 1997 Series_Information: Series_Name: Science Issue_Identification: v. 277, no. 5334, p. 1956-1962. Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1997 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Smith and Sandwell (1997) Source_Contribution: 2-minute gridded bathymetric data Source_Information: Source_Citation: Citation_Information: Originator: Wessel, Paul Originator: Smith, W.H.F. Title: The Generic Mapping Tools (GMT), version 3, technical reference and cookbook Publication_Date: 1995 Series_Information: Series_Name: Manoa, SOEST, University of Issue_Identification: Hawaii Other_Citation_Details: http://gmt.soest.hawaii.edu/ Type_of_Source_Media: digital Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1995 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Wessel and Smith (1995) Source_Contribution: coastline Process_Step: Process_Description: 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 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 ArcInfo. The data were gridded on 1000-m grid cells with a smoothing (quintic) option. Contours were extracted at 200-m intervals. Process_Date: 1998 Process_Step: Process_Description: Final map was compiled and edited in Adobe Illustrator, v. 8.0.1. Minor adjustments of contours and text. Place names were converted to Marshallees spellings. Margin text and explanation were added. Map plot layout and design. Source_Used_Citation_Abbreviation: Abo and others (1976), Chase and others (1984), Hein and others (1990), T.R. Alpha (written communication, 1998) Process_Date: 1998, 1999 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Dan L. Mosier Contact_Organization: U.S. Geological Survey, Coastal and Marine Geology Contact_Address: Address_Type: Mailing address Address: Mail Stop 999, 345 Middlefield Road City: Menlo Park State_or_Province: CA Postal_Code: 94025-3561 Country: USA Contact_Voice_Telephone: (650) 329-5050 Contact_Facsimile_Telephone: (650) 329-5190 Contact_Electronic_Mail_Address: dmosier@usgs.gov Process_Step: Process_Description: First draft of metadata created by curator using FGDCMETA.AML ver. 1.35 08/02/2000 on ArcInfo data set /arcdata/bathymetry/marshalls/marshallsg Process_Date: 20040213 Process_Step: Process_Description: Replaced grid export and xyz files (incorrect version submitted Feb 2004). Change grid format from Arcinfo grid to asciigrid. A 2006 version of the ETOPO2 data is currently available, but no update on the grid is planned at this time. Artifacts such as the "crater" in south Kwajalien remain in the grid. Process_Date: 20070426 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Grid Cell Row_Count: 1401 Column_Count: 2201 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.01 Longitude_Resolution: 0.01 Geographic_Coordinate_Units: Decimal Degrees Geodetic_Model: Horizontal_Datum_Name: WGS84 Ellipsoid_Name: WGS84 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.98 Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: >MARSHALLSG.STA: elevation statistics (meters) > > MIN MAX MEAN STDV > -6617.944 0.000 -4693.243 1049.956 > > Entity_and_Attribute_Detail_Citation: none Distribution_Information: Distributor: 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 Resource_Description: U.S. Geological Survey Miscellaneous Field Studies Map MF 2324 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: Compressed file including Arcinfo grid and metadata. Format_Version_Number: 7.2 Format_Specification: Arcinfo grid File_Decompression_Technique: windows winzip or unix gunzip Transfer_Size: 38 MB Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/mf/1999/2324/ Fees: none Metadata_Reference_Information: Metadata_Date: 20040213 Metadata_Review_Date: 200402 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 ("CSDGM version 2") Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: none Metadata_Use_Constraints: none