Identification_Information: Citation: Citation_Information: Originator: Robert B. Halley Originator: David C. Twichell Originator: VeeAnn A. Cross Publication_Date: 2005 Title: Sustainable Seas Expedition Points along Tracks: Years 2000 and 2001 Geospatial_Data_Presentation_Form: vector digital data Online_Linkage: http://pubs.usgs.gov/of/2005/1089/data/rov_sub/sse/sse_allpnts.zip Larger_Work_Citation: Citation_Information: Originator: VeeAnn A. Cross Originator: David C. Twichell Originator: Robert B. Halley Originator: Kate T. Ciembronowicz Originator: Bret D. Jarrett Originator: Erika S. Hammar-Klose Originator: Al C. Hine Originator: Stan D. Locker Originator: Dave F. Naar Publication_Date: 2005 Title: GIS Compilation of Data Collected from the Pulley Ridge Deep Coral Reef Region Series_Information: Series_Name: Open-File Report Issue_Identification: 2005-1089 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/2005/1089 Description: Abstract: Pulley Ridge is a series of drowned barrier islands that extends almost 200 km in 60-100 m water depths. This drowned ridge is located on the Florida Platform in the southeastern Gulf of Mexico about 250 km west of Cape Sable, Florida. This barrier island chain formed during the initial stage of the Holocene marine transgression. These islands were then submerged and left abandoned near the outer edge of the Florida Platform. The southern portion of Pulley Ridge hosts zooxanthellate scleractinian corals, green, red and brown macro algae, and a mix of deep and typically shallow-water tropical fishes. This reef community is in unusually deep water, and its extent and the controls on its distribution were unknown. To address these questions scientists from the U.S. Geological Survey Coastal and Marine Geology Program in cooperation with scientists from the University of South Florida Department of Marine Sciences have completed a detailed mapping of the southernmost 35 km of Pulley Ridge. The area was mapped using multibeam bathymetry, sidescan-sonar imagery, and high-resolution seismic-reflection profiling to define the geologic framework on which the reef is established. Submersible dives, remotely operated vehicle (ROV) transects, and transects of bottom photographs and video were collected to identify the corals and to map their distribution. This extensive suite of data has been compiled and preliminary analysis of the data suggests that the reefs are not tied to the ridge system, but instead are more broadly distributed. Whether reef distribution is controlled by oceanographic conditions or by subtle differences in the substrate that overlies the barrier island system is unclear, and are topics of continued research. Purpose: This polyline shapefile was generated to indicate the location of the Sustainable Seas Expedition dives in the Pulley Ridge area aboard the NOAA ship Gordon Gunter. Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 20000826 Single_Date/Time: Calendar_Date: 20000828 Single_Date/Time: Calendar_Date: 20000829 Single_Date/Time: Calendar_Date: 20010628 Single_Date/Time: Calendar_Date: 20010629 Single_Date/Time: Calendar_Date: 20010630 Single_Date/Time: Calendar_Date: 20010701 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -83.928788 East_Bounding_Coordinate: -83.630502 North_Bounding_Coordinate: 26.027587 South_Bounding_Coordinate: 24.703923 Keywords: Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: CMGP Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: coral Theme_Keyword: coral reef Theme_Keyword: navigation Theme_Keyword: OF 2005-1089 Theme_Keyword: Open-File Report Theme_Keyword: point Theme_Keyword: shapefile Theme_Keyword: submarine Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Woods Hole Science Center Place: Place_Keyword_Thesaurus: General Place_Keyword: Florida Place_Keyword: Florida Shelf Place_Keyword: Gulf of Mexico Place_Keyword: North America Place_Keyword: Pulley Ridge Place_Keyword: United States Access_Constraints: None. Use_Constraints: The U.S. Geological Survey must be referenced as the originator of the dataset in any future products or research derived from these data. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Robert B. Halley Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: USGS Center for Coastal and Watershed Studies Address: 600 Fourth Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701-4846 Contact_Voice_Telephone: (727) 803-8747 x3113 Contact_Facsimile_Telephone: (727) 803-2032 Contact_Electronic_Mail_Address: rhalley@usgs.gov Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535 Data_Quality_Information: Lineage: Process_Step: Process_Description: Converted the SSE navigation from excel spreadsheets to individual point shapefiles for each dive. This was accomplished by exporting the necessary records to a text file and then loading those as an event theme into ArcView and saving as a shapefile. Process_Step: Process_Description: A line shapefile was then generated connecting the points in the order of navigation acquisition. This was done to help more readily spot obvious outliers. Process_Step: Process_Description: In some cases, running a filter over the points helped remove outliers. (This is discussed in the next process step.) Some files had major outliers that needed to be deleted prior to the more automated filter process. This was done by visual inspection and usually just involved a few points. This modified shapefile was saved under a new name. Process_Step: Process_Description: The submarine typically travels very slowly to aid in seafloor observations. In fact, the submarine can't travel extremely fast. Because of this, I was able to write a filter that looked at distance traveled between each navigation point. I could vary the filter values and see which points were selected as acceptable based on the filter values. The visual inspection of what appeared sensible determined if the filter values were accepted. Process_Step: Process_Description: Once a reasonable filter was applied, those selected points were then saved into a new shapefile with the filter values used added as an attribute to the file. The filter works such that the first number is the distance accepted as movement between 2 adjacent points in time. The second number is the increment added to each subsequent time step. This value is smaller than the first otherwise before long very large error values would be accepted. Process_Step: Process_Description: Once the individual dives were processed, these files were then combined into one shapefile using the Geoprocessing wizard in ArcView 3.2a. Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Entity point Point_and_Vector_Object_Count: 22125 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000000 Longitude_Resolution: 0.000000 Geographic_Coordinate_Units: Decimal degrees 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: sse_allpnts 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: POINT Attribute_Definition: Number indicating the navigation acquisition point along a particular trackline. Attribute_Definition_Source: Software created. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 3818 Attribute: Attribute_Label: DATE_TIME Attribute_Definition: Data and time the point was acquired. Attribute_Definition_Source: Scientist. Attribute_Domain_Values: Unrepresentable_Domain: Character set with date M/DD/YR and time as HH:MIN:SEC. Attribute: Attribute_Label: LAT Attribute_Definition: Latitude of the point. Attribute_Definition_Source: Scientist. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 24.7039233 Range_Domain_Maximum: 26.02758667 Attribute: Attribute_Label: LONG Attribute_Definition: Longitude of the point. Attribute_Definition_Source: Scientist. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -83.92878833 Range_Domain_Maximum: -83.63050167 Attribute: Attribute_Label: DEPTH Attribute_Definition: Depth of the submarine at that point. Attribute_Definition_Source: Scientist. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -405.7 Range_Domain_Maximum: 1.4 Attribute: Attribute_Label: SUB Attribute_Definition: Text field indicating the submarine used. Attribute_Definition_Source: Scientist. Attribute_Domain_Values: Unrepresentable_Domain: Character set. Attribute: Attribute_Label: DISTTO Attribute_Definition: Distance (in meters) to the previously accepted valid point. Attribute_Definition_Source: Computer calculated. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 195.3677 Attribute: Attribute_Label: FILTERVALS Attribute_Definition: Values used in filtering the raw navigation points. Attribute_Definition_Source: Scientist. Attribute_Domain_Values: Unrepresentable_Domain: Character set. Attribute: Attribute_Label: SSE_ID Attribute_Definition: Identifies the SSE dive on which the point was collected. Attribute_Definition_Source: Scientist Attribute_Domain_Values: Unrepresentable_Domain: Character set. Overview_Description: Entity_and_Attribute_Overview: The navigation in sse_142 is suspect. There are large apparent jumps in navigation, then no change for an extended time. What appeared to be 2 major outliers bunches were deleted, and that was all the modifications on the original point navigation. Therefore, no actual filter was applied. Since this particular SSE dive falls outside the Pulley Ridge study area, this seemed acceptable. Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: David C. Twichell Contact_Organization: U.S. Geological Survey Contact_Position: Oceanographer 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 x2266 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: dtwichell@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: Format_Name: Shapefile Transfer_Size: 0.591 Metadata_Reference_Information: Metadata_Date: 20050513 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