Mark Hansen 2015 tabular digital data Archive of Bathymetry Data Collected in South Florida from 1995 to 2015 U.S. Geological Survey Data Series-1031 St. Petersburg, Florida U.S. Geological Survey https://pubs.usgs.gov/ds/1031/download/EsteroB/soundings/DS1031-EsteroB_WGS84_NAVD88-G99_SB_txt.xyz.zip 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. 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. 2003 Data assumed to be constant over time but may change due to geologic processes. Complete None planned -81.99882 -81.81545 26.69552 26.51291 USGS Metadata Identifier USGS:3457112e-d2f7-4ffc-ac66-0058808ca817 General bathymetry circulation model hydrology mapping SANDS sediment dynamics System for Accurate Nearshore Depth Surveying single beam echosounder erosion hydrography U.S. Geological Survey USGS Coastal and Marine Geology Program CMGP St. Petersburg Coastal and Marine Science Center SPCMSC lidar soundings elevation sea floor orthometric water depth EARRL Experimental Advanced Airborne Research Lidar ISO 19115 Topic Category environment inland waters elevation geoscientific information imagery Base MapsEarth Cover oceans 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 United States US 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 Florida FL 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 Estero Bay Matlacha Pass Ft. Myers Gulf of Mexico Lake Okeechobee Caloosahatchee River Everglades Charlotte Harbor Sanibel Island Captiva Island Fort Myers Beach 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. These data should not be used for navigational purposes. Mark Hansen U.S. Geological Survey Oceanographer mailing and physical address

600 Fourth Street South

St. Petersburg FL 33701 USA (727) 502-8000 mhansen@usgs.gov 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. Microsoft Windows 7 Enterprise, Service Pack 1; ESRI ArcGIS 10.2.1 Build 3497 Hansen, Mark Eduardo Patino 2002 multimedia presentation USGS South Florida Information Access (SOFIA) Web report St. Petersburg, FL U.S. Geological Survey http://sofia.usgs.gov/projects/index.php?project_url=hires_bathy 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. This dataset was acquired on single research cruise in 2003 with identical hardware and software systems. These are complete post-processed x,y,z bathymetric data points from acoustic single-beam system collected in 2003 on the Estero Bay, Florida. 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). 0.04 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 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). 0.08 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 U.S. Geological Survey Unpublished material digital tabular data 2003 ground condition USGS Estero Bay bathymetry 2003 Original processed single-beam bathymetric data 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. 2003 Raw sensor data files in ASCII text format and GPS Carrier-phase data in binary format. U.S. Geological Survey Mark Hansen Oceanographer mailing and physical

600 4th Street South

St. Petersburg FL 33701 USA (727) 502-8000 mhansen@usgs.gov 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. 2003 Boat trajectory data files in ASCII text format. Mark Hansen U.S. Geological Survey Oceanographer mailing and physical address

600 Fourth St. South

St. Petersburg FL 33701 727-502-8000 727-502-8032 mhansen@usgs.gov 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. Completely processed final XYZ files representing sea-floor elevations. 2003 Final processed bathymetry data files in ASCII text format. Mark Hansen U.S. Geological Survey (USGS) - St. Petersburg Coastal and Marine Science Center Oceanographer mailing and physical address

600 4th Street South

St. Petersburg FL 33701 USA 727-502-8000 727-502-8032 mhansen@usgs.gov The final processed bathymetry files were reformatted for publication. UTM coordinate were converted to latitude/longitude using NOAA/NGS UTMS v2.0 software. 2015 DS1031_EsteroB_WGS84_NAVD88-G99_SB.xyz.txt, DS1031_EsteroB_WGS84_NAVD88-G99_SB.xyz.shp U.S. Geological Survey Mark Hansen Oceanographer mailing and physical

600 4th Street South

St. Petersburg FL 33701 USA (727) 502-8000 (727) 502-8032 mhansen@usgs.gov Added keywords section with USGS persistent identifier as theme keyword. 20201013 U.S. Geological Survey VeeAnn A. Cross Marine Geologist Mailing and Physical

384 Woods Hole Road

Woods Hole MA 02543-1598 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov Point Point 479553 0.0000001 0.0000001 decimal degrees WGS84-G1150 WGS84 6378137.0 298.257223563 NAVD88 0.01 meters Explicit depth coordinate included with horizontal coordinates DS1031_EsteroB_WGS84_NAVD88-G99_SB.xyz.txt, DS1031_EsteroB_WGS84_NAVD88-G99_SB.xyz.shp, Post-processed, area-specific x,y,z attributed single-beam bathymetry data. USGS longitude WGS84(G1150) x-coordinate (easting) of sample point NOAA/NGS UTMS -82.15210 -81.82454 decimal degrees 0.00000001 latitude WGS84(G1150) y-coordinate (northing) of sample point NOAA/NGS UTMS 26.24279 26.79757 decimal degrees 0.00000001 z-ellipsoid height WGS84(G1150) ellipsoid height of sample point, in meters SANDS -32.812 -24.055 meters 0.001 z-NAVD88 Orthometric height of sample point, in meters. Relative to geoid model Geoid99. SANDS -9.32 -0.37 meters 0.001 Mark E. Hansen U.S. Geological Survey Oceanographer mailing and physical address

600 Fourth St. South

St. Petersburg FL 33701 (727) 502-8000 (727) 502-8032 mhansen@usgs.gov Single-beam bathymetry, vessel (R/V Streeterville) acquired, bathymetric data. 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. ASCII https://pubs.usgs.gov/ds/1031/download/EsteroB/soundings/DS1031-EsteroB_WGS84_NAVD88-G99_SB_txt.xyz.zip none 20201013 U.S. Geological Survey Mark Hansen Oceanographer mailing and physical

600 4th Street South

St. Petersburg FL 33701 USA (727) 502-8000 mhansen@usgs.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 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. None Unclassified None