Metadata: Identification_Information: Citation: Citation_Information: Originator: Mark Hansen Publication_Date: 2015 Title: Single-Beam Bathymetry Sounding Data of Estero Bay, Florida (2003) in XYZ format Geospatial_Data_Presentation_Form: tabular digital data Series_Information: Series_Name: Archive of Bathymetry Data Collected in South Florida from 1995 to 2015 Issue_Identification: U.S. Geological Survey Data Series-1031 Publication_Information: Publication_Place: St. Petersburg, Florida Publisher: U.S. Geological Survey Online_Linkage: https://pubs.usgs.gov/ds/1031/download/EsteroB/soundings/DS1031-EsteroB_WGS84_NAVD88-G99_SB_txt.xyz.zip Description: Abstract: The Estero Bay watershed is under significant development pressure with potential impacts on storm water runoff characteristics, and changes in salinity patterns, nutrient and turbidity levels. Environmental quality in the bay is particularly vulnerable to future degradation due to increasing urbanization and the Bay's limited volume. In recent years, the Caloosahatchee Estuary system has also been impacted due to development and water management activities. These impacts have prompted the development of Minimum Flows and Levels (MFLs) for the Caloosahatchee River by the South Florida Water Management District (SFWMD). A District revision of the MFLs for the Caloosahatchee River and Estero Bay regions required the development of hydrodynamic and water quality models. The U.S. Geological Survey (USGS), in cooperation with SFWMD, performed a bathymetric survey of lower Estero Bay using single-beam and aircraft-based lidar systems. High resolution, acoustic and lidar bathymetric surveying are proven methods to map sea and river floor elevations. Survey track-lines were spaced 250-meters apart orientated along long axis of the river, bays, and estuaries. Several perimeter survey lines were also collected. This report serves as an archive of processed lidar bathymetry data that were collected in Estero Bay, Florida in 2003. Geographic Information System (GIS) data products include XYZ data, bathymetric contours, and a USGS quadrangle map. Additional files include formal Federal Geographic Data Committee (FGDC) metadata. Purpose: This project addressed the collection and interpretation of data necessary to develop the present day bathymetry of the Estero Bay region. This project supports several SFWMD efforts including the proposed MFL development for Estero Bay, which was due in 2006, the revisit of the Estero Bay Estuary MFL and the Southwest Florida Feasibility Study all of which would utilize hydrodynamic model results. The project also supports other non-modeling efforts such as the determination of the oligolialine zone in the Estero Bay system. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2003 Currentness_Reference: Data assumed to be constant over time but may change due to geologic processes. Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -81.99882 East_Bounding_Coordinate: -81.81545 North_Bounding_Coordinate: 26.69552 South_Bounding_Coordinate: 26.51291 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:3457112e-d2f7-4ffc-ac66-0058808ca817 Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: bathymetry Theme_Keyword: circulation model Theme_Keyword: hydrology Theme_Keyword: mapping Theme_Keyword: SANDS Theme_Keyword: sediment dynamics Theme_Keyword: System for Accurate Nearshore Depth Surveying Theme_Keyword: single beam Theme_Keyword: echosounder Theme_Keyword: erosion Theme_Keyword: hydrography Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: St. Petersburg Coastal and Marine Science Center Theme_Keyword: SPCMSC Theme_Keyword: lidar Theme_Keyword: soundings Theme_Keyword: elevation Theme_Keyword: sea floor Theme_Keyword: orthometric Theme_Keyword: water depth Theme_Keyword: EARRL Theme_Keyword: Experimental Advanced Airborne Research Lidar Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: environment Theme_Keyword: inland waters Theme_Keyword: elevation Theme_Keyword: geoscientific information Theme_Keyword: imagery Base MapsEarth Cover Theme_Keyword: oceans Place: Place_Keyword_Thesaurus: Department of Commerce, 2001, Countries, Dependencies, Areas of Special Sovereignty, and Their Principal Administrative Divisions, Federal Information Processing Standard (FIPS) 10-4, Washington, D.C., National Institute of Standards and Technology Place_Keyword: United States Place_Keyword: US Place: Place_Keyword_Thesaurus: U.S. Department of Commerce, 1987, Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard 5-2): Washington, D. C., NIST Place_Keyword: Florida Place_Keyword: FL Place: Place_Keyword_Thesaurus: Department of Commerce, 1990, Counties and Equivalent Entities of the United States, Its Possessions, and Associated Areas, FIPS 6-3, Washington, DC, National Institute of Standards and Technology Place_Keyword: Estero Bay Place_Keyword: Matlacha Pass Place_Keyword: Ft. Myers Place_Keyword: Gulf of Mexico Place_Keyword: Lake Okeechobee Place_Keyword: Caloosahatchee River Place_Keyword: Everglades Place_Keyword: Charlotte Harbor Place_Keyword: Sanibel Island Place_Keyword: Captiva Island Place_Keyword: Fort Myers Beach Access_Constraints: The U.S. Geological Survey requests that it be referenced as the originator of this dataset in any future products or research derived from these data. Use_Constraints: These data should not be used for navigational purposes. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Mark Hansen Contact_Organization: U.S. Geological Survey Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical address Address: 600 Fourth Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: (727) 502-8000 Contact_Electronic_Mail_Address: mhansen@usgs.gov Data_Set_Credit: South Florida Water Management District (SFWMD) provided funding for the study. The project was conducted as a cooperative study by personnel from the USGS in St. Petersburg, FL and the SFWMD, in Fort Myers, FL. Mark Hansen was the USGS principal investigator. Gina Perry performed a significant portion of bathymetric survey data collection and processing. Native_Data_Set_Environment: Microsoft Windows 7 Enterprise, Service Pack 1; ESRI ArcGIS 10.2.1 Build 3497 Cross_Reference: Citation_Information: Originator: Hansen, Mark Eduardo Patino Publication_Date: 2002 Title: Hydrodynamic and Bathymetric Characteristics of South Florida Estuarine and Coastal Systems Geospatial_Data_Presentation_Form: multimedia presentation Series_Information: Series_Name: USGS South Florida Information Access (SOFIA) Issue_Identification: Web report Publication_Information: Publication_Place: St. Petersburg, FL Publisher: U.S. Geological Survey Online_Linkage: http://sofia.usgs.gov/projects/index.php?project_url=hires_bathy Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The accuracy of the data is determined during data collection. This dataset is derived from a single research cruise using identical equipment, set-ups, and staff; therefore, it is internally consistent. Methods are employed to maintain data collection consistency aboard the platform. During mobilization, each piece of equipment is isolated to obtain internal and external offset measurements with respect to the survey platform. All the critical measurements are recorded manually and digitally entered into their respective programs. Offsets between the single-beam transducers and the Ashtech antenna reference point (ARP) were measured and accounted for in post-processing. Bar checks were performed as calibration efforts and accounted for any drift in the Marimatech Echosounder. Differential Geographic Positioning System (DGPS) coordinates were obtained using post-processing software packages developed by the National Oceanic and Atmospheric Administration (NOAA)/National Geodetic Survey (NGS) Online Positioning User Service (OPUS), National Aeronautics and Space Administration (NASA)/Jet Propulsion Laboratory (JPL) Online Positioning User Service (GIPSY), and Scripps Orbit and Permanent Array Center Online Positioning User Service (SCOUT). Boat trajectories were computed with PNAV v2.0 software by ASHTECH, Inc. These bathymetric data have not been independently verified for accuracy. Logical_Consistency_Report: This dataset was acquired on single research cruise in 2003 with identical hardware and software systems. Completeness_Report: These are complete post-processed x,y,z bathymetric data points from acoustic single-beam system collected in 2003 on the Estero Bay, Florida. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The GPS antenna and receiver acquisition configuration used at the reference station was duplicated on the survey vessel (rover). The base receiver and the rover receiver record their positions concurrently at 1Hz recording intervals throughout the survey. All processed measurements are referenced to the base station coordinates. GPS base or differential reference stations were operated within approximately 15 to 20 km of the survey area. Ten new temporary ground-control points or benchmarks (surveyed to within 1 cm to 2 cm accuracy) were established throughout the study area for use as reference receiver sites using standard benchmarks procedures. The new benchmarks were surveyed using Ashtech Z-12, 12 channel dual-frequency GPS receivers. Full-phase carrier data were recorded on each occupied benchmark in Ashtech proprietary BIN format with daily occupations ranging from 6 to 12 hours. BIN files were then converted to RINEX-2 format for position processing. All static base station GPS sessions were submitted for processing to the online OPUS, GIPSY, and SCOUT system software. The computed base location results were entered into a spreadsheet to compute one final positional coordinate and error analysis for that base location. The final positional coordinate (latitude, longitude, and ellipsoid height) is the weighted average of all GPS sessions. For each GPS session, the weighted average was calculated from the total session time in seconds; therefore, longer GPS occupation times held more value than shorter occupation times. Results were computed relative to ITRF00 coordinate system. The established geodetic reference frame for the project was WGS84. Therefore, final reference coordinates used to process the rover data were transformed from ITRF00 to WGS84 using National Oceanic and Atmospheric Administration/National Geodetic Survey(NOAA/NGS) HTDP software v2.1. OPUS, GIPSY, and SCOUT results provide an error measurement for each daily solution. Applying these error measurements, the horizontal accuracy of the base station is estimated to be 0.04 (m) root mean squared (RMS). The kinematic (rover) trajectories were processed using PNAV v2.0, by ASHTECH, Inc. A horizontal error measurement, RMS is computed for each epoch. The horizontal trajectory errors for varied between 0 and 0.08(m). The combined horizontal error from base station coordinate solutions and rover trajectories range from 0 and 0.12 (m), with the average approximately 0.06 (m). Quantitative_Horizontal_Positional_Accuracy_Assessment: Horizontal_Positional_Accuracy_Value: 0.04 Horizontal_Positional_Accuracy_Explanation: Static GPS data was processed using OPUS, GIPSY, and SCOUT software and kinematic GPS data was processed with PNAV v2.0 software by ASHTECH, Inc. and SANDS v1.2 Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: The GPS antenna and receiver acquisition configuration used at the reference station was duplicated on the survey vessel (rover). The base receiver and the rover receiver record their positions concurrently at 1Hz recording intervals throughout the survey. All processed measurements are referenced to the base station coordinates. GPS base or differential reference stations were operated within approximately 15 to 20 km of the survey area. Ten new temporary ground-control points or benchmarks (surveyed to within 1 cm to 2 cm accuracy) were established throughout the study area for use as reference receiver sites using standard benchmarks procedures. The new benchmarks were surveyed using Ashtech Z-12, 12 channel dual-frequency GPS receivers. Full-phase carrier data were recorded on each occupied benchmark in Ashtech proprietary BIN format with daily occupations ranging from 6 to 12 hours. BIN files were then converted to RINEX-2 format for position processing. All static base station GPS sessions were submitted for processing to the online OPUS, GIPSY, and SCOUT system software. The computed base location results were entered into a spreadsheet to compute one final positional coordinate and error analysis for that base location. The final positional coordinate (latitude, longitude, and ellipsoid height) is the weighted average of all GPS sessions. For each GPS session, the weighted average was calculated from the total session time in seconds; therefore, longer GPS occupation times held more value than shorter occupation times. Results were computed relative to ITRF00 coordinate system. The established geodetic reference frame for the project was WGS84. Therefore, final reference coordinates used to process the rover data were transformed from ITRF00 to WGS84 using National Oceanic and Atmospheric Administration/National Geodetic Survey(NOAA/NGS) HTDP software v2.1. OPUS, GIPSY, and SCOUT results provide an error measurement for each daily solution. Applying these error measurements, the vertical accuracy of the base station is estimated to be 0.04 (m) root mean squared (RMS). The kinematic (rover) trajectories were processed using PNAV v2.0, by ASHTECH, Inc. A vertical error measurement, RMS is computed for each epoch. The vertical trajectory errors for varied between 0 and 0.08(m). The combined vertical error from base station coordinate solutions and rover trajectories range from 0 and 0.14 (m), with the average approximately 0.08 (m). Quantitative_Vertical_Positional_Accuracy_Assessment: Vertical_Positional_Accuracy_Value: 0.08 Vertical_Positional_Accuracy_Explanation: Static GPS data was processed using OPUS, GIPSY, and SCOUT software and kinematic GPS data was processed with PNAV v2.0 software by ASHTECH, Inc. and SANDS v1.2 Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: Unpublished material Title: 2003 Estero Bay, Florida single-beam bathymetry Type_of_Source_Media: digital tabular data Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2003 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: USGS Estero Bay bathymetry 2003 Source_Contribution: Original processed single-beam bathymetric data Process_Step: Process_Description: Data Acquisition - The sea-floor of the Estero Bay was mapped by using an outboard motor boat, equipped with a high-precision Global Positioning Systems (GPS) coupled with a high-precision depth sounder. To accomplish this task, the SANDS (System for Accurate Nearshore Depth Surveying) system was developed by Mark Hansen (SPCMSC) and Jeff List (WHSC) of the U.S. Geological Survey. SANDS consists of two components, hardware and processing software. Survey track lines were spaced 500-meters apart and orientated in a north/south orientation. Channels and inlets were surveyed in greater detail. Track lines collected parallel to the bay shoreline (intersecting track lines) functioned to serve as a cross-check and to assess the relative vertical accuracy of the survey. Crossing lines are critical because they serve as a check on the internal accuracy of the data. Soundings were collected along each track line at 3 m spacing. In shallow areas, data were collected in a minimum of 0.3 m water depth except where there was potential damage to the bottom environment or the boat/motors. Reference GPS reference stations were operated on an USGS benchmark, typically located within approximately 15 km of the farthest single-beam track line. Reference and rover GPS receivers recorded the 12-channel full-carrier-phase positioning signals (L1/L2) from satellites via ASHTECH choke-ring antennas. The reference and rover receivers record their positions concurrently at 1-second(s) recording intervals throughout the survey. Boat motion was recorded at 50-millisecond (ms) intervals using a TSS Dynamic Motion Sensor 05 (TSS DMS-05). Bathymetric soundings were recorded at 10-ms intervals using a Marimatech EC-100 survey grade echo-sounder. The single-beam data were acquired using the hydrographic software HYPACK version 5. All data strings from the instruments were streamed in real time and recorded through HYPACK software. Process_Date: 2003 Source_Produced_Citation_Abbreviation: Raw sensor data files in ASCII text format and GPS Carrier-phase data in binary format. Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Mark Hansen Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: (727) 502-8000 Contact_Electronic_Mail_Address: mhansen@usgs.gov Process_Step: Process_Description: Differentially Corrected Navigation Processing- The coordinate values of the reference GPS base stations obtained from OPUS were provided in the ITRF00 coordinate system. All survey data for the project was referenced to WGS84. Consequently, reference station coordinates were transformed to WGS84 coordinates using the NOAA/NGS software HTDP v1.3. The respective reference (base) station coordinates utilized as reference positions were imported into PNAV v2.0 software by ASHTECH, Inc. Differentially corrected rover trajectories were computed by merging the master and rover the GPS data. During processing, steps were taken to ensure that the trajectories between the base and rover were clean, resulting in fixed positions. By analyzing the graphs, trajectory maps, and processing logs that GrafNav produces for each GPS session, GPS data from satellites flagged by the program as having poor health or satellite time segments that had cycle slips could be excluded, or the satellite elevation mask angle could be adjusted to improve the position solutions. The final differentially corrected precise DGPS positions were computed for each rover GPS session and exported in ASCII text format. Process_Date: 2003 Source_Produced_Citation_Abbreviation: Boat trajectory data files in ASCII text format. Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Mark Hansen Contact_Organization: U.S. Geological Survey Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical address Address: 600 Fourth St. South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Contact_Voice_Telephone: 727-502-8000 Contact_Facsimile_Telephone: 727-502-8032 Contact_Electronic_Mail_Address: mhansen@usgs.gov Process_Step: Process_Description: Single-beam Bathymetry Processing- All data were processed using SANDS version 1.2. The primary purpose of SANDS is to time synchronize processed trajectories, soundings, and heave/pitch/roll, then merge all data strings. SANDS applies latency errors, applies geometric corrections for antenna staff pitch and roll, applies geometric corrections for antenna transducer pitch and roll (beam correction), time synchronizes the GPS trajectory and HYPACK files for each GPS epoch, and converts WGS84 latitude/longitude coordinates to North American Datum of 1983 NAD83/GRS80 UTM coordinates (m), and applies a geoid separation based upon NOAA/NGS the Geoid99 model. Latitude/longitude conversion to UTM coordinates was accomplished using NOAA/NGS UTM v2.0 software. Intermediate output files are comma delimited text files containing: time of day (seconds of day), UTM X coordinate (m), UTM Y coordinate (m), ellipsoid height, orthometric height, smoothed raw depths, PNAV RMS value, and HYPACK line number. A header line indicates the attributes entry for each column. Source_Used_Citation_Abbreviation: Completely processed final XYZ files representing sea-floor elevations. Process_Date: 2003 Source_Produced_Citation_Abbreviation: Final processed bathymetry data files in ASCII text format. Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Mark Hansen Contact_Organization: U.S. Geological Survey (USGS) - St. Petersburg Coastal and Marine Science Center Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical address Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: 727-502-8000 Contact_Facsimile_Telephone: 727-502-8032 Contact_Electronic_Mail_Address: mhansen@usgs.gov Process_Step: Process_Description: The final processed bathymetry files were reformatted for publication. UTM coordinate were converted to latitude/longitude using NOAA/NGS UTMS v2.0 software. Process_Date: 2015 Source_Produced_Citation_Abbreviation: DS1031_EsteroB_WGS84_NAVD88-G99_SB.xyz.txt, DS1031_EsteroB_WGS84_NAVD88-G99_SB.xyz.shp Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Mark Hansen Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: (727) 502-8000 Contact_Facsimile_Telephone: (727) 502-8032 Contact_Electronic_Mail_Address: mhansen@usgs.gov Process_Step: Process_Description: Added keywords section with USGS persistent identifier as theme keyword. Process_Date: 20201013 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: VeeAnn A. Cross Contact_Position: Marine Geologist Contact_Address: Address_Type: Mailing and Physical Address: 384 Woods Hole Road 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 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Point Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 479553 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.0000001 Longitude_Resolution: 0.0000001 Geographic_Coordinate_Units: decimal degrees Geodetic_Model: Horizontal_Datum_Name: WGS84-G1150 Ellipsoid_Name: WGS84 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257223563 Vertical_Coordinate_System_Definition: Depth_System_Definition: Depth_Datum_Name: NAVD88 Depth_Resolution: 0.01 Depth_Distance_Units: meters Depth_Encoding_Method: Explicit depth coordinate included with horizontal coordinates Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: DS1031_EsteroB_WGS84_NAVD88-G99_SB.xyz.txt, DS1031_EsteroB_WGS84_NAVD88-G99_SB.xyz.shp, Entity_Type_Definition: Post-processed, area-specific x,y,z attributed single-beam bathymetry data. Entity_Type_Definition_Source: USGS Attribute: Attribute_Label: longitude Attribute_Definition: WGS84(G1150) x-coordinate (easting) of sample point Attribute_Definition_Source: NOAA/NGS UTMS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -82.15210 Range_Domain_Maximum: -81.82454 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.00000001 Attribute: Attribute_Label: latitude Attribute_Definition: WGS84(G1150) y-coordinate (northing) of sample point Attribute_Definition_Source: NOAA/NGS UTMS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 26.24279 Range_Domain_Maximum: 26.79757 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.00000001 Attribute: Attribute_Label: z-ellipsoid height Attribute_Definition: WGS84(G1150) ellipsoid height of sample point, in meters Attribute_Definition_Source: SANDS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -32.812 Range_Domain_Maximum: -24.055 Attribute_Units_of_Measure: meters Attribute_Measurement_Resolution: 0.001 Attribute: Attribute_Label: z-NAVD88 Attribute_Definition: Orthometric height of sample point, in meters. Relative to geoid model Geoid99. Attribute_Definition_Source: SANDS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -9.32 Range_Domain_Maximum: -0.37 Attribute_Units_of_Measure: meters Attribute_Measurement_Resolution: 0.001 Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Mark E. Hansen Contact_Organization: U.S. Geological Survey Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical address Address: 600 Fourth St. South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Contact_Voice_Telephone: (727) 502-8000 Contact_Facsimile_Telephone: (727) 502-8032 Contact_Electronic_Mail_Address: mhansen@usgs.gov Resource_Description: Single-beam bathymetry, vessel (R/V Streeterville) acquired, bathymetric data. Distribution_Liability: The data have no explicit or implied guarantees. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although these data have been processed successfully on a computer system at the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The USGS or the U.S. Government shall not be held liable for improper or incorrect use of the data described and/or contained herein. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ASCII Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://pubs.usgs.gov/ds/1031/download/EsteroB/soundings/DS1031-EsteroB_WGS84_NAVD88-G99_SB_txt.xyz.zip Fees: none Metadata_Reference_Information: Metadata_Date: 20201013 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Mark Hansen Contact_Position: Oceanographer Contact_Address: Address_Type: mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: (727) 502-8000 Contact_Electronic_Mail_Address: mhansen@usgs.gov Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Use_Constraints: The U.S. Geological Survey requests that it be referenced as the originator of this dataset in any future products or research derived from these data. Metadata_Security_Information: Metadata_Security_Classification_System: None Metadata_Security_Classification: Unclassified Metadata_Security_Handling_Description: None