Metadata: Identification_Information: Citation: Citation_Information: Originator: Shawn R. Harrison Originator: Mark L. Buckley Originator: Cordell Johnson Originator: Daniel J. Nowacki Originator: Miguel Canals Originator: Colin Evans Originator: Joshua Logan Originator: Curt D. Storlazzi Originator: Justin J. Birchler Originator: Margaret L. Palmsten Originator: Eric Swanson Originator: Emily L. Johnson Publication_Date: 20240510 Title: USGS CoastCam at Tres Palmas, Rincón, Puerto Rico: Timestack Imagery and Coordinate Data Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital data Larger_Work_Citation: Citation_Information: Originator: Shawn R. Harrison Originator: Mark L. Buckley Originator: Cordell Johnson Originator: Daniel J. Nowacki Originator: Miguel Canals Originator: Colin Evans Originator: Joshua Logan Originator: Curt D. Storlazzi Originator: Justin J. Birchler Originator: Margaret L. Palmsten Originator: Eric Swanson Originator: Emily L. Johnson Publication_Date: 20240510 Title: USGS CoastCam at Tres Palmas, Rincón, Puerto Rico: Timestack Imagery and Coordinate Data Edition: 1.0 Series_Information: Series_Name: U.S. Geological Survey data release Issue_Identification: doi:10.5066/P13QYBXP Publication_Information: Publication_Place: St. Petersburg, Florida Publisher: U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center Online_Linkage: https://doi.org/10.5066/P13QYBXP Description: Abstract: A digital video camera was installed at Tres Palmas, Rincón, Puerto Rico (PR) and faced west along the beach. Every hour during daylight hours, daily from August 27, 2019, to March 10, 2020, the camera collected raw video and produced snapshots and time-averaged image products. One such product is a "runup timestack". Runup timestacks are images created by sampling a cross-shore array of pixels from an image through time as waves propagate towards and run up a beach. Runup timestacks store the red, green, and blue or monochrome pixel intensity as a function of the cross-shore position as imagery for the sampling period, typically around 10 minutes. The images included in this data release were collected from September 9, 2019, to March 10, 2020. The camera is part of a U.S. Geological Survey (USGS) research project to study the beach and nearshore environment. USGS researchers analyzed the timestack imagery collected from this camera to remotely sense information such as the elevation of wave runup. This camera is part of the USGS CoastCam network, supported by the Total Water Level/Coastal Change Project under the Coastal and Marine Hazards and Resources Program (CMHRP). To learn more about this specific camera visit https://www.usgs.gov/centers/pcmsc/science/using-video-imagery-study-wave-dynamics-tres-palmas. Purpose: Data were obtained to document changes in shoreline position and coastal morphology. These data are intended for science researchers, students, policy makers, and the public. These data can be further processed to calculate wave runup. To ensure that USGS CMHRP data management protocols were followed, USGS Field Activity Numbers were assigned (FAN) for this camera imagery collection: 2019-675-FA and 2020-653-FA. Additional information about these FAN are available on the Coastal and Marine Geoscience Data System (CMGDS): https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-675-FA and https://cmgds.marine.usgs.gov/services/activity.php?fan=2020-653-FA. Supplemental_Information: The bounding coordinates below represent the limits of the rectified images from the CoastCam that covers the entirety of the beach at low tide and approximately 300 meters (m) directly in line of the camera facing alongshore. This dataset represents the timestack images (in Network Common Data Form format (netCDF, .nc)) collected from the Rincón CoastCam from 2019 to 2020. More timestack images will be added to this release as they are processed. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20190909 Ending_Date: 20200310 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -67.263519 East_Bounding_Coordinate: -67.263263 North_Bounding_Coordinate: 18.348178 South_Bounding_Coordinate: 18.347966 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:45ca3f5c-b7a3-4aa6-9124-18c119898113 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme_Keyword: environment Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Hazards and Resources Program Theme_Keyword: CMHRP Theme_Keyword: Pacific Coastal and Marine Science Center Theme_Keyword: PCMSC Theme_Keyword: CoastCam Theme_Keyword: Total Water Level Theme_Keyword: runup Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: image analysis Theme_Keyword: field methods Theme_Keyword: video monitoring Theme_Keyword: optical methods Theme_Keyword: ecosystem management Theme_Keyword: photography Theme_Keyword: remote sensing Theme_Keyword: image collections Theme_Keyword: geomorphology Theme_Keyword: ocean sciences Theme_Keyword: coastal processes Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Island of Puerto Rico Place_Keyword: Commonwealth of Puerto Rico Place_Keyword: Las Tres Palmas Place_Keyword: Rincón Access_Constraints: None Use_Constraints: Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: USGS SPCMSC Data Management Group Contact_Organization: U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center Contact_Address: Address_Type: mailing address Address: 600 4th Street South City: St. Petersburg State_or_Province: Florida Postal_Code: 33701 Country: USA Contact_Voice_Telephone: 727-502-8000 Contact_Electronic_Mail_Address: gs-g-spcmsc_data_inquiries@usgs.gov Native_Data_Set_Environment: Environment as of metadata creation: Python 3.9.10 (https://www.python.org/downloads/release/python-3910/); Microsoft Windows 10 Enterprise Version 22H2; netCDF4 Python library (https://unidata.github.io/netcdf4-python/) version 1.6.2; SciPy Python library (https://scipy.org/) version 1.9.3; UTM Python library (https://pypi.org/project/utm/) version 0.7.0; MATLAB Compiler Runtime 8.3 (https://www.mathworks.com/products/compiler/matlab-runtime.html) Cross_Reference: Citation_Information: Originator: Brittany L. Bruder Originator: Katherine L. Brodie Publication_Date: 20200909 Title: CIRN Quantitative Coastal Imaging Toolbox Series_Information: Series_Name: SoftwareX Issue_Identification: Volume 12, 100582 Publication_Information: Publication_Place: Online Publisher: Elsevier Online_Linkage: https://doi.org/10.1016/j.softx.2020.100582 Cross_Reference: Citation_Information: Originator: K. Todd Holland Originator: Robert A. Holman Originator: Thomas C. Lippmann Originator: John Stanley Originator: Nathaniel Plant Publication_Date: 19970101 Title: Practical Use of Video Imagery in Nearshore Oceanographic Field Studies Series_Information: Series_Name: IEEE Journal of Oceanic Engineering Issue_Identification: Volume 22, Issue 1 Publication_Information: Publication_Place: Online Publisher: IEEE Online_Linkage: https://doi.org/10.1109/48.557542 Cross_Reference: Citation_Information: Originator: Robert A. Holman Originator: John Stanley Publication_Date: 20070416 Title: The History and Technical Capabilities of Argus Series_Information: Series_Name: Coastal Engineering Issue_Identification: Volume 54, Issues 6–7 Publication_Information: Publication_Place: Online Publisher: Elsevier Online_Linkage: https://doi.org/10.1016/j.coastaleng.2007.01.003 Cross_Reference: Citation_Information: Originator: Margaret L. Palmsten Originator: Katherine L. Brodie Publication_Date: 20220118 Title: The Coastal Imaging Research Network (CIRN) Series_Information: Series_Name: Remote Sensing Issue_Identification: Volume 14, Issues 3 Publication_Information: Publication_Place: Online Publisher: MDPI Online_Linkage: https://doi.org/10.3390/rs14030453 Cross_Reference: Citation_Information: Originator: Nathaniel G. Plant Originator: K.Todd Holland Originator: Jack A. Puleo Publication_Date: 20021005 Title: Analysis of the Scale of Errors in Nearshore Bathymetric Data Series_Information: Series_Name: Marine Geology Issue_Identification: Volume 191, Issues 1–2 Publication_Information: Publication_Place: Online Publisher: Elsevier Online_Linkage: https://doi.org/10.1016/S0025-3227(02)00497-8 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The video camera collected 5-megapixel images, with file sizes generally between 0.08 and 0.65 megabytes (MB) on disc. Images may be obscured by water droplets, insects, birds, salt, sand and dirt, poor visibility from adverse weather conditions or sun glare, and thus may not reflect the true state of the beach and ocean. Logical_Consistency_Report: The camera system installed (FLIR BFLY-PGE-50S5C-C) was programmed to collect three-band images every hour during daylight hours and take video for approximately 10 minutes. A timestack image for the 10-minute period was created by sampling a single transect on the beach. Completeness_Report: The imagery represents a fixed location at Rincón, PR. Images may not be available every hour of operation due to camera malfunction. Images may be obscured by water droplets, insects, birds, salt, sand and dirt, poor visibility from adverse weather conditions or sun glare, and thus may not reflect the true state of the beach and ocean. This product is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The post-processed kinematic (PPK) data collected in field activity 2019-675-FA were used to validate the extrinsic camera calibration using corrections referenced to a temporary base station located approximately 250 meters from the study area. The reference position of the base station was established using the mean position of four static occupations (each lasting between three and five hours, conducted during two days of surveying) derived using Precise Point Positioning (PPP). The standard deviation of the horizontal coordinates derived for the base station was 0.025 meters. The mean reported horizontal precision of the rover measurements was 0.008 meters (with a standard deviation of 0.004 meters). The magnitude of additional errors resulting from uncertainty in the base station reference position, errors in tripod centering, and antenna height measurement errors are unknown. The precise locations of the targets are used in the CIRN Quantitative Coastal Imaging Toolbox steps B and C (Bruder and Brodie, 2020). Horizontal coordinates are referenced to the North American Datum of 1983 (National Spatial Reference System 2011) Universal Transverse Mercator Zone 19 North (NAD83(2011)/UTM Zone 19N) coordinate system, with a resolution of 0.001 meters. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: The PPK data collected in field activity 2019-675-FA were used to validate the extrinsic camera calibration using corrections referenced to a temporary base station located approximately 250 meters from the study area. The reference position of the base station was established using the mean position of four static occupations (each lasting between three and five hours, conducted during two days of surveying) derived using Precise Point Positioning (PPP). The standard deviation of the vertical coordinates derived for the base station was 0.023 meters. The mean reported horizontal precision of the rover measurements was 0.018 meters (with a standard deviation of 0.010 meters). The magnitude of additional errors resulting from uncertainty in the base station reference position, errors in tripod centering, and antenna height measurement errors are unknown. The precise locations of the targets are used in the CIRN Quantitative Coastal Imaging Toolbox steps B and C (Bruder and Brodie, 2020). Vertical positions are referenced to the Puerto Rico Vertical Datum of 2002 (PRVD02; EPSG:1123), derived using GEOID12B with a resolution of 0.001 meters. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Shawn R. Harrison Originator: Mark L. Buckley Originator: Cordell Johnson Originator: Daniel J. Nowacki Originator: Miguel Canals Originator: Colin Evans Originator: Joshua Logan Originator: Curt D. Storlazzi Originator: Justin J. Birchler Originator: Margaret L. Palmsten Originator: Eric Swanson Originator: Emily L. Johnson Publication_Date: 20240510 Title: USGS CoastCam at Tres Palmas, Rincón, Puerto Rico: Calibration and GNSS Topography Survey Data Geospatial_Data_Presentation_Form: tabular digital data, raster digital data Publication_Information: Publication_Place: St. Petersburg, FL Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P142AXUJ Type_of_Source_Media: JPEG, YAML, comma-delimited-text Source_Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 20170719 Single_Date/Time: Calendar_Date: 20170721 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: TresPalmasPR_c2_20190719_IO, TresPalmasPR_c2_20190721_EO, TresPalmasPR_XYZ_20190721 Source_Contribution: Images to solve camera intrinsic and extrinsic orientation along with solved parameters during imagery and timestack data collection at Rincón, PR. Global navigation satellite system (GNSS) survey data collected within the field-of-view of the camera used to generate a topo-bathymetric surface. Process_Step: Process_Description: Before mounting the CoastCam (c2) at the beach, the camera (FLIR BFLY-PGE-50S5C-C) was used to take intrinsic camera calibration images. Please refer to the TresPalmasPR_c2_20190719_IO zip file and the TresPalmasPR_c2_calibration_metadata record included in Harrison and others (2024) for access to the intrinsic camera calibration data and more information on the calibration process. After calibration was complete, the camera was mounted on a pole. The computer and camera were powered by a solar panel and battery. Data was transferred via cellular. Source_Used_Citation_Abbreviation: TresPalmasPR_c2_20190719_IO Process_Date: 20190719 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Joshua Logan Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Country: USA Contact_Voice_Telephone: 831-460-7519 Contact_Electronic_Mail_Address: jlogan@usgs.gov Process_Step: Process_Description: The camera was programmed to collect three-band (RGB) images at 2 Hertz (Hz) for a total of approximately 10 minutes, every hour during daylight hours. The images included in this data release were collected from September 9, 2019, to March 10, 2020. Gaps exist in the dataset because not every image collected by the camera is being used in the dataset. Additionally, some images may have been obscured by water droplets, insects, birds, salt, sand and dirt, poor visibility from adverse weather conditions, or sun glare, and thus may not reflect the true state of the beach and ocean. Each hour the camera was activated, a timestack image product was produced by sampling intensity values at a single transect of pixels, defined by (U,V) pixel coordinates. The (U,V) sampling locations were determined by identifying a cross-shore transect of locations in local horizontal (X,Y) coordinate system, which aligned with the local shoreline orientation. The elevation of samples was chosen as Z = 0 m, which is an elevation assumed to be near the water line. The vertical reference frame was PRVD02 coordinate system. XYZ-sampling locations were projected into (U,V) image coordinates following established methods (Palmsten and Brodie, 2022; Bruder and Brodie, 2020) and using intrinsic (TresPalmasPR_c2_20190719_IO) and extrinsic (TresPalmasPR_c2_20190721_EO) camera calibration information from Harrison and others (2024). Source_Used_Citation_Abbreviation: TresPalmasPR_c2_20190719_IO, TresPalmasPR_c2_20190721_EO Process_Date: 2020 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Justin J. Birchler Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: FL Postal_Code: 33701 Country: US Contact_Voice_Telephone: 727-502-8019 Contact_Electronic_Mail_Address: jbirchler@usgs.gov Process_Step: Process_Description: The timestack images were converted to netCDF timestacks and processed to add additional information using the netCDF4 Python library version 1.6.2. The times of the collection, sampled at 2 Hz, were stored as a one-dimensional (1D) array, where each index of the array contained a time represented as epoch time, seconds elapsed since 00:00:00 UTC on January 1, 1970. The sampling locations, saved as local XYZ values, were stored as a two-dimensional array. Because pixels were stored assuming an elevation of Z = 0 m and the true beach surface may vary, an additional processing step was needed to project the sampling locations onto a topo-bathymetric surface representative of the beach at the time of the image data collection following previously described methods (Palmsten and Brodie, 2023; Holland and others, 1997). The topo-bathymetric surface was developed from GNSS survey data (TresPalmasPR_XYZ_20190721) collected within the field-of-view of the camera (Harrison and others, 2024). The point data was interpolated onto a grid using the method described by Plant and others (2002) with smoothing length scales of 1.5 m in the cross-shore direction and 3 m in the alongshore direction. The local (X,Y) coordinates were rotated and translated into UTM coordinates using information describing the local origin and rotation angle for the site. The (X,Y) coordinates were also translated from UTM to WGS84 latitude and longitude coordinates using the UTM Python library version 0.7.0. One netCDF (.nc) file was created for each timestack image using the netCDF Python library. The data included in each netCDF file includes the timestack image; the UV image coordinates, the XY coordinates in UTM; the XY local coordinates; the latitude and longitude coordinates; the Z-elevation coordinates projected onto the beach surface; and an array of the epoch times as previously described. Additional metadata was included in the netCDF files as global and variable attributes using the Climate and Forecast (CF)-compliant metadata convention (version CF-1.6). These attributes describe the data collection, as well as how the different coordinate systems are used within the data. Source_Used_Citation_Abbreviation: TresPalmasPR_XYZ_20190721 Process_Date: 2024 Source_Produced_Citation_Abbreviation: netCDF timestacks Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Mark L. Buckley Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center Contact_Position: Research 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: 727-502-8024 Contact_Electronic_Mail_Address: mbuckley@usgs.gov Process_Step: Process_Description: A total of 331 netCDF timestack files (*.nc) are included in this release and can be viewed and downloaded on the data release webpage. The netCDF files were renamed using the following convention, with ten period-separated elements: 1) the epoch time--seconds elapsed since 00:00:00 UTC on January 1 1970--the timestack was collected 2) The day of the week the timestack was collected, abbreviated to three letters 3) The month the timestack was collected, abbreviated to three letters 4) The date when the timestack was collected in the format dd_hh_mm_ss where 'dd' is the day of the month, 'hh' is the hour in 24-hour format, 'mm' is the minute, and 'ss' is the second 5) The timezone for date previously described 6) The year the timestack was collected 7) The site nickname where the timestack was collected 8) The camera the timestack was collected from, where 'cx' represents the timestack image 9) the name of the transect sampled to create the timestack 10) the file extension, .nc. An example of a filename formatted in this way would be 1568026800.Mon.Sep.09_11_00_00.GMT.2019.trespalm.cx.runup04.nc. Source_Used_Citation_Abbreviation: netCDF timestacks Process_Date: 2024 Source_Produced_Citation_Abbreviation: *.nc Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: USGS SPCMSC Data Management Group Contact_Organization: U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center 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: gs-g-spcmsc_data_inquiries@usgs.gov Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Raster Raster_Object_Information: Raster_Object_Type: Grid Cell Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 19 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -69.0 Latitude_of_Projection_Origin: 0.0 False_Easting: 500000.0 False_Northing: 0.0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: row and column Coordinate_Representation: Abscissa_Resolution: 1 Ordinate_Resolution: 1 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: NAD83 (National Spatial Reference System 2011) (EPSG:6318) Ellipsoid_Name: GRS 1980 (EPSG:7019) Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257222101 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: Puerto Rico Vertical Datum of 2002 Altitude_Resolution: 0.001 Altitude_Distance_Units: meters Altitude_Encoding_Method: Attribute values Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: The Climate and Forecast (CF)-compliant metadata (version CF-1.6) in the header of each of the netCDF files provides spatial information for projecting the data into a Geographic Information System (GIS). It also provides information about the conventions used for attributes in the dataset. The column and row count are variable between the data files. Entity_and_Attribute_Detail_Citation: The entity and attribute information were generated by the individual and/or agency identified as the originator of the dataset. Please review the rest of the metadata record for additional details and information. Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: USGS SPCMSC Data Management Group Contact_Organization: U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center Contact_Address: Address_Type: mailing and physical Address: 600 4th Street South City: St. Petersburg State_or_Province: Florida Postal_Code: 33701 Country: USA Contact_Voice_Telephone: 727-502-8000 Contact_Electronic_Mail_Address: gs-g-spcmsc_data_inquiries@usgs.gov Resource_Description: *.nc Distribution_Liability: This digital publication was prepared by an agency of the United States Government. Although these 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, nor shall the act of distribution imply 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. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: NetCDF Format_Version_Number: 4.3 Format_Specification: *.nc is a netCDF file that contains timsetack imagery; elevations, in meters; and, coordinate information, in Easting and Northing, longitude and latitude degrees, and local grid coordinates, measured in meters. The netCDF files can be downloaded in the zip files listed in the Network_Resource_Name link below. Format_Information_Content: The data download file is compressed and must be unzipped using software such as WinZip, 7zip, Peazip or pkUnzip before use. Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://coastal.er.usgs.gov/data-release/P13QYBXP/data/TresPalmas_c2_timestacks.zip Fees: None Metadata_Reference_Information: Metadata_Date: 20240510 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: USGS SPCMSC Data Management Group Contact_Organization: U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center Contact_Address: Address_Type: mailing and physical Address: 600 4th Street South City: Saint Petersburg State_or_Province: FL Postal_Code: 33701 Country: USA Contact_Voice_Telephone: 727-502-8000 Contact_Electronic_Mail_Address: gs-g-spcmsc_data_inquiries@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998