Julieta M. Gómez-Fragoso 20180504 Vector Digital Data Set (Point) https://doi.org/10.5066/F7WH2P6K Julieta M. Gómez-Fragoso José A. Santiago- Sáez 20180510 GIS Data Project/Collection Scientific Investigation Report 2018-5018 Guaynabo, Puerto Rico USGS https://dx.doi.org/10.3133/sir20185018 This dataset consists of a shapefile of points corresponding to water depth collected for the bathymetric survey of Puerto Mosquito, in Isla de Vieques, Puerto Rico, on August 11, 2015. The U.S. Geological Survey, in cooperation with the Puerto Rico Environmental Quality Board, conducted a limnological study at Puerto Mosquito in Vieques to assess the principal mechanisms affecting the hydrology and water quality characteristics. The study characterized hydrologic and physical-chemical properties, sediment deposition rates, bathymetry, and biological conditions. The bathymetric survey system used for the study consisted of coupling a global positioning system (GPS) device with a water depth sounder. Established navigation lines were used to simultaneously collect the water depth and geographic location data using a bathymetric system. A bathymetric map was generated by transferring collected data into a geographic information system (GIS). The purpose of the bathymetric survey is to determine water depth, which is necessary to contour the bottom of lagoon and calculate the water volume of the lagoon referenced to mean sea level. This dataset in shapefile format contains the generated water depth data points for Puerto Mosquito, in Isla de Vieques, Puerto Rico, during the bathymetric survey conducted on August 11, 2015. Puerto Mosquito is one of the biggest lagoons (with a surface-area of 64 ha) on Isla de Vieques and a major tourist attractions mainly because of the presence of bioluminescent dinoflagellates within its waters. The U.S. Geological Survey, Caribbean-Florida Water Science Center (USGS, CFWSC) in cooperation with the Puerto Rico Environmental Quality Board (PREQB) conducted a study from July 2015 to July 2016 to establish baseline water-quality conditions at Puerto Mosquito at Isla de Vieques and Caño Boquerón at Cabo Rojo, Pueto Rico. In addition to the water-quality characterization, a bathymetric survey was conducted to determine the storage volume of both lagoons. Suggested citation: Gómez-Fragoso, J. M., and Santiago-Saez, J. A., 2017, Data for the Hydrologic and Water-Quality Characterization of Caño Boquerón, Cabo Rojo, and Puerto Mosquito, Isla de Vieques, Puerto Rico, July 2015-July 2016: U.S. Geological Survey data release, https://doi.org/10.5066/F7WH2P6K. 20150811 observed Complete None planned -65.451119097 -65.439670371 18.104926911 18.098279567 USGS Thesaurus bathymetry limnology ocean sciences None Storage volume USGS Metadata Identifier USGS:5aeb3ae6e4b0860c0f7277bd Common geographic areas Vieques Puerto Rico None Puerto Mosquito None. Please see 'Distribution Info' for details. None. Users are advised to read the data set's metadata thoroughly to understand appropriate use and data limitations. U.S. Geological Survey, Southeast Region Julieta M. Gomez-Fragoso Hydrologist (Term) mailing address

GSA Center, 651 Federal Drive

Guaynabo PR 00965 United States 787-749-7479 787-749-7401 jgomez-fragoso@usgs.gov Dataset prepared in cooperation with the Puerto Rico Environmental Quality Board. Environment as of Metadata Creation: Microsoft [Unknown] Version 6.2 (Build 9200) ; Esri ArcGIS 10.5 (Build 6491) Service Pack N/A (Build N/A) No formal attribute accuracy tests were conducted. Attributes were reviewed on the display, values fall within expected range. A total of 63 established navigation lines were surveyed during field data collection. Data points where water depths were collected are processed and translated from bathymetric system to ESRI ArcGIS geographic information system (GIS) for further analysis Geographic position (accuracy to within 2 meters) were acquired simultaneously using the GPS interfaced to the depth sounder. A formal accuracy assessment of the vertical positional information in the data set has either not been conducted, or is not applicable. The bathymetric survey was conducted using a bathymetric system and established navigation lines which are simultaneously collecting the lagoon water depth and geographic location data. The bathymetric survey system used for the study consisted of coupling a global positioning system (GPS) device with a water depth sounder. Calibration of the water depth sounder (fathometer) was conducted prior to the beginning of data collection using the check-bar method. Post-processing of the collected data (raw data) included the adjustment of water depth data in order to provide mean sea level referenced-points. A time/elevation correction is applied to each raw data point using water level data from USGS gaging station 50231500. The adjustment process was conducted using the bathymetric system software and involved: (1) comparing the time at which water depth (raw data) was collected (through the echo sounder device) and water level data at the gaging station (gage height record referenced to mean sea level); (2) assigning a negative/positive sign to water level at gaging station (thereafter named as tide correction) based on whether gage height is above or below mean sea level, and (3) adding this tide correction to the raw data. Unknown Point Entity point 220114 State Plane Coordinate System 1983 5200 18.0333333333 18.4333333333 -66.4333333333 17.8333333333 200000.0 200000.0 coordinate pair 0.6096 0.6096 Meter D_North_American_1983 GRS_1980 6378137.0 298.257222101 Attribute Table Table containing attribute information associated with the data set. Producer defined ID_line Numeric identifier for the navigated line during bathymetric survey conducted on August 11, 2015. Producer defined 1847 4329 x_Coord X_Coord - the left/right edge coordinates of the point, in State Plane coordinates system, FIPS 5200, NAD 1983, Units: meters. Producer defined 303962.73 305170.59 meters y_Coord Y_ Coord - the top/bottom edge coordinates of the point, in State Plane coordinates system, FIPS 5200, NAD 1983, Units: meters Producer defined 229609.75 230338.98 meters raw_depth raw_depth - raw data points where water depth were collected during bathymetric survey conducted on August 11, 2015. Producer defined 0.16 4.26 meters corrected_ corrected_depth - raw data points (water depth) corrected when time/elevation (Tide_correction attribute) adjustment is applied to the raw data (raw_depth attribute field) to provide water depth data referenced to mean sea level. Producer defined 0 4.07 meters Tide_corre Tide_correction - adjustment added to raw data to provide data points of water depth referenced to mean sea level. The time/elevation correction is based on water level data from USGS gaging station 50129935 station, during the bathymetric survey conducted on August 21, 2015. Negative values in time_correction attribute indicate that the water level at gaging station is above mean sea level at the moment of survey. Producer defined -0.25 -0.16 meters The entity and attribute information provided here describes the tabular data associated with the dataset. Please review the detailed descriptions that are provided (the individual attribute descriptions) for information on the values that appear as fields/table entries of the data set. The entity and attribute information was generated by the individual and/or agency identified as the originator of the dataset. Please review the entire metadata record for additional details and information. U.S. Geological Survey- ScienceBase Mailing and Physical

Denver Federal Center,

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Denver CO 80225 1-888-275-8747 sciencebase@usgs.gov Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this information product, for the most part, is in the public domain, it also contains copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner whenever applicable. The data have been approved for release and publication by the U.S. Geological Survey (USGS). Although the data have been subjected to rigorous review and are substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review. Furthermore, the data are released on the condition that neither the USGS nor the U.S. Government may be held liable for any damages resulting from authorized or unauthorized use. Although the data have been processed successfully on a computer system at the U.S. Geological Survey, 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 U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein. Users of the data are advised to read all metadata and associated documentation thoroughly to understand appropriate use and data limitations ScienceBase catalog- Online Linkage: https://doi.org/10.5066/F7WH2P6K. 20200812 Julieta M. Gomez-Fragoso U.S. Geological Survey, Southeast Region Hydrologist (Term) mailing address

GSA Center, 651 Federal Drive

Guaynabo PR 00965 United States 787-749-7479 787-749-7401 jgomez-fragoso@usgs.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998