Metadata: Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 20221222 Title: Multispectral aerial imagery collected during uncrewed aircraft systems (UAS) operations: Plum Island Estuary and Parker River NWR (PIEPR), Massachusetts, November 14, 2017 and March 28, 2019 Edition: 1.0 Geospatial_Data_Presentation_Form: remote-sensing image Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9PP35F4 Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts Publisher: U.S. Geological Survey, Coastal and Marine Hazards and Resources Program Online_Linkage: https://doi.org/10.5066/P9PP35F4 Online_Linkage: https://www.sciencebase.gov/catalog/item/62a62a1dd34ec53d2770c25d Larger_Work_Citation: Citation_Information: Originator: Jennifer M. Cramer Originator: Emily C. Huntley Originator: Sandra M. Brosnahan Originator: Neil K. Ganju Originator: Emily J. Sturdivant Originator: Elizabeth A. Pendleton Originator: Seth D. Ackerman Originator: Jonathan Borden Publication_Date: 2022 Title: Aerial imagery and ground control points collected during an uncrewed aerial systems (UAS) survey at Plum Island Estuary and Parker River NWR (PIEPR), November 14, 2017 and March 28, 2019 Edition: 1.0 Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9PP35F4 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: Suggested citation: Cramer, J.M., Huntley, E.C., Brosnahan, S.M., Ganju, N.K., Sturdivant, E.J., Pendleton, E.A., Ackerman, S.D., and Borden, J., 2022, Aerial imagery and ground control points collected during an uncrewed aerial systems (UAS) survey at Plum Island Estuary and Parker River NWR (PIEPR), November 14, 2017 and March 28, 2019: U.S. Geological Survey data release, https://doi.org/10.5066/P9PP35F4. Online_Linkage: https://doi.org/10.5066/P9PP35F4 Online_Linkage: https://www.sciencebase.gov/catalog/item/62718655d34e76103cd586a1 Description: Abstract: Low-altitude (80 and 100 meters above ground level) digital images were collected by the USGS Woods Hole Coastal and Marine Science Center (WHCMSC) Aerial Imaging and Mapping Group (AIMG) over an area of the Plum Island Estuary and Parker River National Wildlife Refuge (NWR) in Massachusetts on November 14, 2017 and March 28, 2019 to document marsh stability over time and quantify sediment movement. A 3DR Solo uncrewed aircraft systems (UAS) was equipped with either a Ricoh GR II digital camera for true color photos, which can be used to produce digital elevation models and ortho images, or a MicaSense RedEdge multispectral camera for five-banded imagery (blue, green, red, red edge, and near-infrared spectral bands), which can be used to classify vegetation. The MicaSense camera covered a smaller subsection of the same polygonal area of the marsh that the Ricoh imaged. Some photographs contain black and white targets used as ground control points (GCPs), which were surveyed by a field crew with a high-precision Real-Time Kinematic Global Positioning System. This data release includes the original images from both cameras, as well as a CSV file containing the latitude and longitude coordinates, in Universal Transverse Mercator Zone 19N referenced to the North American Datum of 1983, of the ground control points needed to complete any photogrammetry projects using the original photographs, and GPS transect points used to evaluate the photogrammetry products created. Purpose: These multispectral images were collected with the appropriate resolution and overlap to permit high-quality photogrammetry and generation of reflectance imagery and multispectral indices. Supplemental_Information: These data were collected by the U.S. Geological Survey (USGS) Coastal and Marine Hazards and Resources Program (CMHRP) during USGS field activities 2017-057-FA and 2019-009-FA. For more information about these field activities, see the field activity webpages at https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-057-FA and https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-009-FA. Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 20171114 Single_Date/Time: Calendar_Date: 20190328 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -70.816458 East_Bounding_Coordinate: -70.805353 North_Bounding_Coordinate: 42.776738 South_Bounding_Coordinate: 42.771010 Keywords: 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: Woods Hole Coastal and Marine Science Center Theme_Keyword: WHCMSC Theme_Keyword: 3DR Solo Quadcopter Theme_Keyword: MicaSense RedEdge Theme_Keyword: photographs Theme_Keyword: photos Theme_Keyword: geotagged photos Theme_Keyword: images Theme_Keyword: geotagged images Theme_Keyword: low-altitude aerial imagery Theme_Keyword: aerial imagery Theme_Keyword: UAS Theme_Keyword: uncrewed aircraft systems Theme_Keyword: unoccupied aircraft system Theme_Keyword: unmanned aerial system Theme_Keyword: drone Theme_Keyword: multispectral Theme_Keyword: near-infrared Theme_Keyword: marsh Theme_Keyword: TIFF Theme_Keyword: field activity 2017-057-FA Theme_Keyword: field activity 2019-009-FA Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: remote sensing Theme_Keyword: image collections Theme_Keyword: aerial photography Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme_Keyword: location Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:62a62a1dd34ec53d2770c25d Place: Place_Keyword_Thesaurus: None Place_Keyword: North America Place_Keyword: United States Place_Keyword: Massachusetts Place_Keyword: Parker River Place_Keyword: Plum Island Place_Keyword: Parker River National Wildlife Refuge Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: 2017 Temporal_Keyword: 2019 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 as the originator of the dataset. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Woods Hole Coastal and Marine Science Center Contact_Person: Sandra Brosnahan Contact_Position: Physical Scientist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2265 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: sbrosnahan@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: https://www.sciencebase.gov/catalog/file/get/62a62a1dd34ec53d2770c25d?name=2017057FA_2019009FA_multispectral_imagery_browse.jpg Browse_Graphic_File_Description: Example near-infrared band image of Plum Island, Massachusetts, taken in March 2019. Browse_Graphic_File_Type: JPEG Cross_Reference: Citation_Information: Originator: Neil K. Ganju Originator: Sandra M. Brosnahan Originator: Emily J. Sturdivant Originator: Elizabeth A. Pendleton Originator: Seth D. Ackerman Publication_Date: 20190529 Title: Aerial imagery from unmanned aerial systems (UAS) flights and ground control points-Plum Island Estuary and Parker River NWR (PIEPR), February 27th, 2018 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Other_Citation_Details: This publication represents data collected in the same way and in the same place in 2018 Online_Linkage: https://doi.org/10.5066/P9O9NSRK Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The GPS used on the UAS has theoretical accuracies of 3 meters horizontally and 10 meters vertically. The location values are stored in the metadata embedded in the header of each image. Two multispectral images (2019009FA_m01f03_20190328T165938Z_IMG_0294_* and 2019009FA_m01f03_20190328T165938Z_IMG_0295_*) have the same timestamp, but the second image (2019009FA_m01f03_20190328T165938Z_IMG_0295_*) was likely collected two seconds later. Logical_Consistency_Report: The metadata embedded in the image file headers was modified to incorporate standard USGS tags and additional survey information. The images were renamed to append the field activity ID, camera ID, flight ID, and date and time in Coordinated Universal Time (UTC) to the beginning of each filename. The MicaSense camera stores images in folders of 200 multispectral images; if more than 200 multispectral images were captured during a flight, then the camera would restart the file numbers in a new folder. A flight may therefore have multiple images with the same original filename (e.g., flight 5 in 2017 has two images with an original filename of IMG_0026_1.tif). Five images were captured every 2 seconds, one for each different wavelength (blue, green, red, red edge, and near infrared). Each image is a single wavelength and will appear grayscale when viewed independently. During the 2019 survey, the camera would sometimes temporarily stop collecting images during a flight, so there may be time gaps up to 55 seconds between sequential images. During the 2017 survey, flights 1 and 6 were test flights, so the images collected during these flights are not included in this data release. Ground control point (GCP) targets are visible in some of the images; for more information about GCPs, see the ground control metadata available from the larger work citation. Completeness_Report: This dataset includes geotagged images in TIFF format collected with a multispectral camera during field activities 2017-057-FA and 2019-009-FA. A total of 19 flights (13 flights in 2017, two of which were test flights, and six flights in 2019) were conducted with the multispectral camera over the two surveys. Five images were captured every 2 seconds, one for each different wavelength (blue, green, red, red edge, and near infrared). During the 2019 survey, the camera would sometimes temporarily stop collecting images during a flight, so there may be time gaps up to 55 seconds between sequential images. For the 2017 images, images of the launch pad at the beginning and end of the flights, as well as the images collected during the two test flights (flights 1 and 6), were removed from this dataset. Radiometric calibration images are included for post-processing purposes. A total of 20,525 images collected over the two surveys (12,430 in 2017 and 8,095 in 2019) are included in this dataset. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Horizontal positions recorded in the metadata embedded in the header of each image were derived from a 3DR u-blox NEO-7 GPS, which receives signals from GPS and GLONASS satellites in WGS 84 (G1150) EPSG:7660 but is otherwise uncorrected. Horizontal locations are considered accurate to approximately 3 meters, but they may have inaccuracies greater than 10 meters due to the UAS flight path and uncertainty associated with the geotagging process. During the 2019 survey, the calibration images taken at the start of flights 4 and 6 (2019009FA_m01CAL_20190328T170520Z_IMG_0000_* and 2019009FA_m01CAL_20190328T184445Z_IMG_0000_*) were missing coordinates, so the coordinates from the first calibration image taken at the start of the survey (2019009FA_m01CAL_20190328T155036Z_IMG_0000_1.tif) were used to populate these missing coordinates. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Vertical positions were recorded in the metadata embedded in the header of each image. Vertical positions are ellipsoidal heights derived from a 3DR u-blox NEO-7 GPS, which receives signals from GPS and GLONASS satellites but is otherwise uncorrected. Vertical locations are less accurate than horizontal positions with inaccuracies greater than 10 meters. Lineage: Process_Step: Process_Description: Step 1: Set up equipment. A MicaSense RedEdge multispectral camera was mounted on a 3DR Solo Quadcopter UAS. The MicaSense RedEdge acquires images at 1.2 megapixels with image dimensions of 1280 X 960 pixels in 12-bit DNG format. The lens focal length is 5.5 mm, and the camera has global shutters for all five bands (blue, green, red, red edge, and near infrared) with an aperture of f2.8. File sizes are generally 1.8 MB on disc. The camera is generally down-looking, so the imaged area was dependent on the tilt of the quadcopter during flight. For flight, the camera was set to record images at 2-second intervals, activated before takeoff and deactivated after landing. A 3DR GPS module and MicaSense Downwelling Light Sensor were connected to the camera with 6-pin cables and secured on top of the aircraft with velcro. The camera received power from a connection to the UAS. The 3DR GPS module was a pre-configured u-blox NEO-7 that used a 25 x 25 x 4 mm ceramic patch antenna with a 5 Hz update rate. It recorded telemetry information including latitude, longitude, altitude, dilution of precision, date and time, roll, pitch, and yaw. The downwelling light sensor measured ambient light for each of the five spectral bands captured by the camera. For each camera shutter trigger, it recorded spectral data including spectral irradiance, roll, pitch, yaw, gain, and exposure time. Data from the downwelling light sensor and GPS module were automatically incorporated into the metadata embedded in the header of each image. Process_Date: 2019 Process_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Woods Hole Coastal and Marine Science Center Contact_Person: Sandra Brosnahan Contact_Position: Physical Scientist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2265 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: sbrosnahan@usgs.gov Process_Step: Process_Description: Step 2: Collected images. The images were collected during field activity 2017-057-FA on November 14, 2017, and field activity 2019-009-FA on March 28, 2019. During each field activity, flights were flown approximately 80 meters above ground level along pre-planned lines and lasted the duration of the UAS battery life (approximately 15 minutes) or until the flight was completed or aborted. During a flight, five images were captured every 2 seconds, one for each of the five wavelengths (blue [475 nm], green [560 nm], red [668 nm], red edge [717 nm], and near infrared [840 nm]). The ending number of the image filenames corresponds to the band number: _1 corresponds to blue, _2 corresponds to green, _3 corresponds to red, _4 corresponds to near infrared, and _5 corresponds to red edge. After a flight, the SD card was removed from the camera, and all files related to the flight were downloaded and organized by flight number. At the start of the field activity and throughout the day, calibration images were taken of a MicaSense Calibrated Reflectance Panel by manually triggering the camera shutter with the UAS held over the panel. Before the images can be used to create photogrammetry products, they need to be radiometrically calibrated to account for changing light conditions during flight. The standardized reflectance values provided by MicaSense for this panel are 0.61 for near infrared, 0.63 for blue, and 0.64 for green, red, and red edge. Calibration images should be chosen to temporally match the UAS images as closely as possible. Process_Date: 2019 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Sandra Brosnahan Contact_Organization: U.S. Geological Survey Contact_Position: Physical Scientist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 x2265 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: sbrosnahan@usgs.gov Process_Step: Process_Description: Step 3: Renamed the 2019 images and incorporated survey information into the 2019 images' metadata. A Python script (image_RenameTagFilter.py) was run to rename the 2019 images and incorporate standard USGS tags and additional survey information into the 2019 images using ExifTool by Phil Harvey. The images were renamed to append the field activity ID, camera ID, flight ID, and UTC date and time to the beginning of each filename. For example, IMG_0003_1.tif was renamed to 2019009FA_m01f01_20190328T155433Z_IMG_0003_1.tif where 2019009FA refers to the field activity, m01 refers to the camera (MicaSense sensor 1), f01 refers to the flight number, 20190328T155433Z refers to the image date and time in the ISO 8601 standard (YYYYMMDD T [time separator] HHMMSS Z [Zulu/UTC time]), and IMG_0003_1 refers to the original filename assigned to the image by the camera. The Python script also incorporated standard USGS tags into the metadata embedded in the header of each image using ExifTool. Images may have different metadata formats embedded in their headers, and the script incorporated survey information into the following three image metadata formats: Exchangeable image file format (Exif), International Press Telecommunications Council (IPTC), and Extensible Metadata Platform (XMP). The standard USGS tags at the time have since changed and were subsequently updated in a process step below. The following tags were populated and were not subsequently updated because they are no longer part of the standard USGS tags. Please note that the Exif UserComment tag was populated for all the 2019 images, while the remaining IPTC and XMP tags were only populated in the calibration images collected at the start of the 2019 survey and in the images collected during flight 6. Exif tag and the information used to populate the tag (for all 2019 images): UserComment (for calibration images): Flight CAL UserComment (for images collected during flights): Flight [ID] ; target altitude 80 m IPTC tags and the information used to populate the tags (for 2019 calibration and flight 6 images): Caption-Abstract: One band of a multispectral image from a low-altitude aerial survey in Plum Island, MA. Captured with a MicaSense RedEdge at a target altitude of 80 m. WHCMSC field activity number 2019-009-FA (https://cmgds.marine.usgs.gov/fan_info.php?fa=2019-009-FA). CopyrightNotice: Public Domain. Please credit U.S. Geological Survey Keywords: Plum Island, MA, Massachusetts, 2019-009-FA, UAS, nadir, multispectral, USGS XMP tag and the information used to populate the tag (for 2019 calibration and flight 6 images): Caption: One band of a multispectral image from a low-altitude aerial survey in Plum Island, MA. Captured with a MicaSense RedEdge at a target altitude of 80 m. WHCMSC field activity number 2019-009-FA (https://cmgds.marine.usgs.gov/fan_info.php?fa=2019-009-FA). Process_Date: 20190419 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Emily Sturdivant Contact_Organization: U.S. Geological Survey Contact_Position: Geographer Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 Contact_Facsimile_Telephone: 508-457-2310 Process_Step: Process_Description: Step 4: Renamed the 2017 images. The images collected during the 2017 survey were renamed to append the field activity ID, camera ID, flight ID, and UTC date and time to the beginning of each filename. The MicaSense camera recorded the GPS date and time from the GPS connected to the camera to the Exif CreateDate tag. Before renaming the images, the Exif CreateDate tag was copied to the Exif GPSDateStamp and GPSTimeStamp tags using the following ExifTool (version 11.86) command: exiftool -P "-GPSTimeStamp out.csv The "-csv" option writes the information to a CSV file. The "-n" option formats the latitude and longitude as signed decimal degrees. Please note that the above command was tested on macOS; Windows users may need to use "exiftool.exe" instead of "exiftool." Process_Date: 20220610 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Emily Huntley Contact_Organization: U.S. Geological Survey Contact_Position: Geographer/Database Specialist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: ehuntley@contractor.usgs.gov Process_Step: Process_Description: Step 6: Added the missing coordinates for the calibration images collected in 2019 during flights 4 and 6. During the 2019 survey, the calibration images collected at the start of flights 4 and 6 (2019009FA_m01CAL_20190328T170520Z_IMG_0000_* and 2019009FA_m01CAL_20190328T184445Z_IMG_0000_*) were missing coordinates, so the coordinates from the first calibration image taken at the start of the survey (2019009FA_m01CAL_20190328T155036Z_IMG_0000_1.tif) were used to populate these missing coordinates. The following ExifTool (version 11.86) command was run to populate the missing coordinates in the calibration images: exiftool -TagsFromFile 2019009FA_m01CAL_20190328T155036Z_IMG_0000_1.tif "-EXIF:GPSLatitude out.csv The "-csv" option writes the information to a CSV file. The "-n" option formats the latitude and longitude as signed decimal degrees. Please note that the above command was tested on macOS; Windows users may need to use "exiftool.exe" instead of "exiftool." Entity_and_Attribute_Detail_Citation: U.S. Geological Survey Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey - ScienceBase Contact_Address: Address_Type: mailing and physical address Address: Denver Federal Center, Building 810, Mail Stop 302 City: Denver State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: 1-888-275-8747 Contact_Electronic_Mail_Address: sciencebase@usgs.gov Resource_Description: This dataset includes geotagged multispectral aerial images and calibration images in TIFF format collected during UAS operations over Plum Island Estuary and Parker River National Wildlife Refuge, Massachusetts, on November 14, 2017, and March 28, 2019, by the U.S. Geological Survey during field activities 2017-057-FA and 2019-009-FA. This dataset contains the following files: 20,525 geotagged images collected over the two surveys (12,430 in 2017 and 8,095 in 2019), a CSV file with the location of each image (2017057FA_2019009FA_multispectral_imageryNav.csv), a browse graphic of an example near-infrared band image (2017057FA_2019009FA_multispectral_imagery_browse.jpg), and a Federal Geographic Data Committee (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM) metadata file (2017057FA_2019009FA_multispectral_imagery.xml). The images themselves are distributed through the Imagery Data System and are available through the Network Resource Name link below, while the browse graphic and metadata file are available through ScienceBase. Distribution_Liability: Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: TIFF Format_Information_Content: This dataset contains geotagged multispectral aerial images in TIFF format collected by the U.S. Geological Survey over Plum Island Estuary and Parker River National Wildlife Refuge, Massachusetts, on November 14, 2017, and March 28, 2019. The transfer size of all the images in a zip file is 36.2 GB. The images are available through the Imagery Data System (see the Network Resource Name link below), while the metadata and browse graphic are available from the ScienceBase dataset landing page. Transfer_Size: 36181 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://cmgds.marine.usgs.gov/idsviewer/data_release/10.5066-P9PP35F4 Network_Resource_Name: https://www.sciencebase.gov/catalog/item/62a62a1dd34ec53d2770c25d Network_Resource_Name: https://doi.org/10.5066/P9PP35F4 Access_Instructions: The data can be downloaded using the Network Resource Name links. The first link is to the landing page of the images in the Imagery Data System. The second link is to the ScienceBase dataset landing page where the metadata and browse graphic can be downloaded. The third link is to the main landing page of the entire data release. Digital_Form: Digital_Transfer_Information: Format_Name: CSV Format_Information_Content: This dataset contains the location data of geotagged multispectral aerial images in CSV format. The images were collected by the U.S. Geological Survey over Plum Island Estuary and Parker River National Wildlife Refuge, Massachusetts, on November 14, 2017, and March 28, 2019. Transfer_Size: 2 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/62a62a1dd34ec53d2770c25d Network_Resource_Name: https://www.sciencebase.gov/catalog/item/62a62a1dd34ec53d2770c25d Network_Resource_Name: https://doi.org/10.5066/P9PP35F4 Access_Instructions: The data can be downloaded using the Network Resource Name links. The first link downloads the files that are available from the dataset landing page as a zip file. The second link is to the ScienceBase dataset landing page where the metadata and browse graphic can be downloaded. The third link is to the main landing page of the entire data release. Fees: None Technical_Prerequisites: These files require software capable of opening TIFF images and, if desired, capable of viewing metadata embedded in the headers of the images. Metadata_Reference_Information: Metadata_Date: 20221222 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Emily Huntley Contact_Organization: U.S. Geological Survey, Woods Hole Coastal and Marine Science Center Contact_Position: Geographer/Database Specialist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: 508-548-8700 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: whsc_data_contact@usgs.gov Contact_Instructions: The metadata contact email address is a generic address in the event the person is no longer with USGS. Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time