Identification_Information: Citation: Citation_Information: Originator: VeeAnn A. Cross Publication_Date: 2005 Title: Color Shaded-relief TIFF Image of High-resolution Bathymetry, North Carolina, Pamlico Sound Area Geospatial_Data_Presentation_Form: remote-sensing image Publication_Information: Online_Linkage: http://pubs.usgs.gov/of/2005/1306/data/basemap/estuaryimg_geog.zip Larger_Work_Citation: Citation_Information: Originator: VeeAnn A. Cross Originator: John F. Bratton Originator: Emile Bergeron Originator: Jeff K. Meunier Originator: John Crusius Originator: Dirk Koopmans Publication_Date: 2005 Title: Continuous Resistivity Profiling Data from the Upper Neuse River Estuary, North Carolina, 2004-2005 Series_Information: Series_Name: Open-File Report Issue_Identification: 2005-1306 Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://pubs.usgs.gov/of/2005/1306 Description: Abstract: The Neuse River Estuary in North Carolina is a broad, V-shaped water body located on the southwestern end of Pamlico Sound. This estuary suffers from severe eutrophication for which several water quality models have recently been developed to aid in the management of nutrient loading to the estuary. In an effort to help constrain model estimates of the fraction of nutrients delivered by direct ground-water discharge, continuous resistivity profile (CRP) measurements were made during the spring of 2004 and 2005. CRP is used to measure electrical resistivity of sediments, a property that is sensitive to difference in salinity of submarine ground water. The 2004 and 2005 surveys used floating resistivity streamers of 100 m and 50 m respectively. The depth penetration of the streamers is approximately 20% of the streamer length which translates to approximately 20-25 m with the 100 m streamer and 12-14 m with the 50 m streamer. These data were processed using AGI's EarthImager 2D software. CRP data enables the mapping of the extent and depth of the fresher ground water within the estuary. Purpose: To provide high resolution bathymetry TIFF image for the Pamlico Sound area in North Carolina. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2005 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -77.098973 East_Bounding_Coordinate: -75.464678 North_Bounding_Coordinate: 35.857168 South_Bounding_Coordinate: 34.694708 Keywords: Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: bathymetry Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: image Theme_Keyword: OF 2005-1306 Theme_Keyword: Open-File Report Theme_Keyword: shaded-relief Theme_Keyword: TIFF Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Woods Hole Science Center Theme_Keyword: CMGP Place: Place_Keyword_Thesaurus: General Place_Keyword: Neuse River Place_Keyword: North America Place_Keyword: North Carolina Place_Keyword: Pamlico Sound Place_Keyword: United States Access_Constraints: None. Use_Constraints: These data should not be used for navigation purposes. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: VeeAnn A. Cross Contact_Organization: U.S. Geological Survey Contact_Position: Marine Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: (508) 548-8700 x2251 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Data_Set_Credit: This original grid dataset was acquired from the NOAA NOS Estuarine Bathymetry website: http://spo.nos.noaa.gov:16080/bathy/. Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535 Data_Quality_Information: Attribute_Accuracy: Positional_Accuracy: Horizontal_Positional_Accuracy: Quantitative_Horizontal_Positional_Accuracy_Assessment: Vertical_Positional_Accuracy: Lineage: Source_Information: Source_Citation: Citation_Information: Originator: NOAA National Ocean Service Publication_Date: 2000 Title: Estuarine Bathymetry Publication_Information: Publication_Place: Silver Spring, MD Publisher: National Oceanic and Atmospheric Administration Other_Citation_Details: website Online_Linkage: http://spo.nos.noaa.gov:16080/bathy/ Type_of_Source_Media: website Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2005 Source_Currentness_Reference: publication date Source_Contribution: A thorough metadata file generalized for the generic bathymetric digital elevation model is available from the website. What follows is the text supplied on the NOAA website regarding these data: The high resolution bathymetric data are gridded to 30m cells defined on a UTM projection where the locations of the value for each cell are at coordinates in UTM meter units evenly divisible by 30. The origin of these units is 500,000 meters west of the central meridian for the UTM projection and the equator. It should be noted that these UTM grids do NOT align with geographic parallels and meridians which define the extents of these DEM data sets. These 30m gridded data are equivalently referred to as UTM, 7.5 minute, or 30m data. In this context these terms are interchangeable. Null values (encoded -32767 within the DEMs) are used to represent all locations either above (outside) the local high water datum (the shoreline as defined by the National Ocean Service) or outside the extents of the estuary as delineated by the CAF. Bathymetric elevations within these data sets are referenced to the local tidal datum which typically is Mean Lowest Low Water (MLLW) averaged over a 19 year tidal epoch. Elevations above this datum (between the datum and the shoreline) have positive values (meters to centimeter resolution) while those below are negative. Note that this datum is different from that used by USGS for land elevation data that it distributes in DEM form which are referenced to Mean Sea Level (MSL). Process_Step: Process_Description: A hillshade relief grid was created from the estuary bathymetry grid using ArcGIS 9.0. The parameters were left at the default values, except vertical exaggeration was set to 25. Both the bathymetry grid and the resulting hillshade grid were UTM, Zone18, NAD83. Source_Used_Citation_Abbreviation: neuse_bathy (ESRI grid) Source_Produced_Citation_Abbreviation: est_hsh_v25 Process_Step: Process_Description: Both the bathymetry grid and the hillshade grid were loaded into ArcView 3.3. After creating the desired color table for the bathymetry grid, the two grids were combined using the ArcView 3.3 extension "grid-to-image converter tool" (downloaded from www.esri.com). This resulted in a color shaded-relief TIFF image and the corresponding world file. Source_Used_Citation_Abbreviation: neuse_bathy Source_Used_Citation_Abbreviation: est_hsh_v25 Source_Produced_Citation_Abbreviation: neuse_bathy_v25.tif Source_Produced_Citation_Abbreviation: neuse_bathy_v25.tfw Process_Step: Process_Description: The UTM, Zone18, NAD83 TIFF image was reprojected to geographic coordinates, NAD83 using BlueMarble Geographic Transformer version 5.1. The central latitude for the reprojection was 35.278313888888. Source_Used_Citation_Abbreviation: neuse_bathy_v25.tif Source_Used_Citation_Abbreviation: neuse_bathy_v25.tfw Source_Produced_Citation_Abbreviation: estuaryimg_geog.tif Source_Produced_Citation_Abbreviation: estuaryimg_geog.tfw Process_Step: Process_Description: The original 24-bit image was saved as a paletted 8-bit tiff image using Corel PhotoPaint version 11. Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Pixel Row_Count: 4299 Column_Count: 4934 Vertical_Count: 1 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000010 Longitude_Resolution: 0.000010 Geographic_Coordinate_Units: Decimal degrees Planar: Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: row and column Coordinate_Representation: Abscissa_Resolution: 0.000331 Ordinate_Resolution: 0.000270 Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 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: Band_1 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: Value Attribute: Attribute_Label: Red Attribute: Attribute_Label: Green Attribute: Attribute_Label: Blue Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: VeeAnn A. Cross Contact_Organization: U.S. Geological Survey Contact_Position: Marine Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: (508) 548-8700 x2251 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Resource_Description: Downloadable Data Distribution_Liability: These data were prepared by an agency of the United States Government. Neither the United States government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States government or any agency thereof. Although all data published in this report have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials and/or the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of this data, software, or related materials. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Transfer_Size: 20.242 Metadata_Reference_Information: Metadata_Date: 20051205 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: VeeAnn A. Cross Contact_Organization: U.S. Geological Survey Contact_Position: Marine Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: (508) 548-8700 x2251 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: vatnipp@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