Location of bottom photographs along with images collected in 2012 by the U.S. Geological Survey in the Connecticut River during field activity 2012-024-FA (point shapefile and JPEG images).

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 2017
Title:
Location of bottom photographs along with images collected in 2012 by the U.S. Geological Survey in the Connecticut River during field activity 2012-024-FA (point shapefile and JPEG images).
Edition: 1.0
Geospatial_Data_Presentation_Form: vector data, raster digital data
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F7PG1Q7V
Publication_Information:
Publication_Place:
Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: https://doi.org/10.5066/F7PG1Q7V
Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: Seth D. Ackerman
Originator: David S. Foster
Originator: Eric M. Moore
Originator: Barry J. Irwin
Originator: Dann S. Blackwood
Originator: Christopher R. Sherwood
Publication_Date: 2017
Title:
High-Resolution Geophysical and Sampling Data Collected at the Mouth of the Connecticut River, Old Saybrook to Essex, Connecticut, 2012
Edition: 1.0
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F7PG1Q7V
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
Suggested citation: Ackerman S.D., Foster D.S., Moore E.M., Irwin B.J., Blackwood D.S., and Sherwood, C.R., 2017, High-resolution geophysical and sampling data collected at the mouth of the Connecticut River, Old Saybrook to Essex, Connecticut, 2012: U.S. Geological Survey data release, https://doi.org/10.5066/F7PG1Q7V.
Online_Linkage: https://doi.org/10.5066/F7PG1Q7V
Description:
Abstract:
A geophysical and geological survey was conducted at the mouth of the Connecticut River from Old Saybrook to Essex, Connecticut, in September 2012. Approximately 230 linear kilometers of digital Chirp subbottom (seismic-reflection) and 234-kilohertz interferometric sonar (bathymetric and backscatter) data were collected along with sediment samples, riverbed photographs, and (or) video at 88 sites within the geophysical survey area. Sediment grab samples were collected at 72 of the 88 sampling sites, video was acquired at 68 sites, and photographs of the river bottom were taken at 38 sites. These survey data are used to characterize the riverbed by identifying sediment-texture and riverbed morphology. More information can be found on the web page for the Woods Hole Coastal and Marine Science Center field activity: https://cmgds.marine.usgs.gov/fan_info.php?fan=2012-024-FA. Data collected during the 2012 survey can be obtained here: https://doi.org/10.5066/F7PG1Q7V.
Purpose:
This dataset is used to display the images and locations of bottom photographs acquired with a GoPro HD Hero2 on a modified SEABed Observation and Sampling System (SEABOSS) collected during a 2012 USGS survey in the Connecticut River. The information contained within the bottom photographs is used to validate geophysical data collected in the same survey area. The photos also help provide the basis for determining sediment texture where a physical sediment sample was not collected.
Supplemental_Information:
This dataset contains 38 riverbed images from a sampling survey that also acquired 68 video files and 72 sediment samples at 88 sampling sites. See logical consistency report for a note about using these photos in conjunction with the video and sediment sample data. More information about this survey can be found on the WHCMSC Field Activity webpage: https://cmgds.marine.usgs.gov/fan_info.php?fan=2012-024-FA. Data collected during the 2012 survey can be obtained here: https://doi.org/10.5066/F7PG1Q7V.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20120921
Ending_Date: 20120923
Currentness_Reference: ground condition of survey dates: 20120921-20120923
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -72.413500
East_Bounding_Coordinate: -72.337200
North_Bounding_Coordinate: 41.388900
South_Bounding_Coordinate: 41.269800
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: Woods Hole Coastal and Marine Science Center
Theme_Keyword: WHCMSC
Theme_Keyword: field activity 2012-024-FA
Theme_Keyword: field activity number 12024
Theme_Keyword: ground-truth
Theme_Keyword: bottom photographs
Theme_Keyword: seabed photographs
Theme_Keyword: photos
Theme_Keyword: stations
Theme_Keyword: seafloor
Theme_Keyword: sea floor
Theme_Keyword: riverbed
Theme_Keyword: marine geology
Theme_Keyword: sampling navigation
Theme_Keyword: SEABOSS
Theme_Keyword: SEABed Observation and Sampling System
Theme_Keyword: Van Veen grab sampler
Theme_Keyword: GoPro
Theme_Keyword: GoPro HD Hero2
Theme_Keyword: JPG
Theme_Keyword: JPEG
Theme_Keyword: image
Theme_Keyword: R/V Rafael
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: underwater photography
Theme_Keyword: photographs
Theme_Keyword: navigational data
Theme_Keyword: grain-size analysis
Theme_Keyword: marine geology
Theme_Keyword: image collection
Theme_Keyword: sea-floor characteristics
Theme_Keyword: remote sensing
Theme:
Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: marine geology
Theme_Keyword: photographic sampling
Theme_Keyword: sediment analysis
Theme_Keyword: estuary
Theme_Keyword: river
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: location
Theme_Keyword: geoscientificInformation
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: North America
Place_Keyword: United States
Place_Keyword: Atlantic Ocean
Place_Keyword: Connecticut
Place_Keyword: Connecticut River
Place_Keyword: Long Island Sound
Place_Keyword: Old Saybrook
Place_Keyword: Essex
Stratum:
Stratum_Keyword_Thesaurus: None
Stratum_Keyword: Seafloor
Stratum_Keyword: Sea floor
Stratum_Keyword: Riverbed
Stratum_Keyword: River bed
Temporal:
Temporal_Keyword_Thesaurus: None
Temporal_Keyword: 2012
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_Person_Primary:
Contact_Person: Seth Ackerman
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
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 x2315
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: sackerman@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: Browse_Graphic_File_Description:
Thumbnail image showing the location of river bed photographs collected by the U.S. Geological Survey in the Connecticut River, 2012.
Browse_Graphic_File_Type: JPEG
Cross_Reference:
Citation_Information:
Originator: D. Blackwood
Originator: K. Parolski
Publication_Date: 2001
Title: Seabed observation and sampling system
Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: Sea Technology
Issue_Identification: v.42, no.2, p. 29-43
Publication_Information:
Publication_Place: Arlington, VA
Publisher: Compass Publications, Inc.
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The GoPro HD Hero2 camera, deployed on a modified SEABOSS, acquired photos at 11 Megapixels in JPEG quality of 98 percent. Image file sizes are generally between 3 and 7 MB on disc, depending on the complexity of the riverbed image. Position offsets between the location of the sampler and the DGPS antenna were not corrected so the location of these images are probably 2-4 meter horizontal accuracy.
Logical_Consistency_Report:
All riverbed photographs were acquired with the same camera; a GoPro HD Hero2. The camera was mounted on a modified SEABOSS. Gaps in sequential photo numbers exist because only the best photo per station was selected for publication (See source contribution for more information on camera settings and photograph timing; see completeness report for other process and dataset completeness information).
Sediment sample data can be used in conjunction with the riverbed photographs and videos to help classify sediment texture. Beginning with sampling site 31, where the sediment sampler and the imagery frame were teathered to each other, the location of sediment samples, photographs and videos are often coincident as they were collected during the same deployment of the modified SEABOSS. A notable exceptions to this are at sample sites 31 and 36, where the sampler did not collect a successful sample during the original deployment so a sample was taken approximately 100 meter south (sample 31) and 30 meters west (sample 36) of where video and photos were collected.
Completeness_Report:
This dataset includes bottom photographs in JPEG format and a shapefile of the locations of photographs collected during USGS survey 2012-024-FA aboard the R/V Rafael in the Connecticut River. Eighty-eight sampling sites were occupied within the study area using a modified SEABOSS. Bottom photographs taken in water column and on deck or were otherwise not usable were deleted. Every attempt was taken to keep at least one photograph for each site however, the unsettled and turbulent nature of the river made this very difficult. Of 88 sampling sites, the Hero2 camera provided only 38 usable photos. For some sampling sites, only a blurry image or an image without a clear view of the sea floor but with significant suspended sediment was the only image available (in these cases it was kept and included in this dataset). Suspended sediment in a photograph may be used as a proxy to approximate surficial sediment size when used in conjunction with other data such as co-located video; especially in these cases when a physical sediment sample was not collected. For sampling sites 2-21 the visibility was so poor that the photograph and video portion of the survey was abandoned, and only sediment samples were collected. The photograph and video system was deployed again beginning with sampling station 22.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The original JPEG photographs alone do not represent spatial data, however the post-processing of the photographs with the navigation data and survey notes makes the link to spatially locate the imagery. Navigation for the sampling survey 2012-024-FA used the Differential Global Positioning System (DGPS) from the Hemisphere DGPS unit. The recorded position of each photo is actually the position of the GPS antenna on the survey vessel, located on the aft of the R/V Rafael's cabin just port of the centerline, not the location of the SEABOSS sampler. The SEABOSS was deployed approximately 2 meters to the starboard side of the DGPS antenna. No layback or offset was applied to the recorded position. In addition to the +/- 2 meters offset the SEABOSS may drift additionally away from the survey vessel when deployed to the riverbed. Based on the various sources for horizontal offsets, a conservative estimate the horizontal accuracy of the bottom photograph locations is 2-4 meters.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: Unpublished Material
Title: Bottom Photographs and Navigation
Geospatial_Data_Presentation_Form: raster and ASCII text digital data
Type_of_Source_Media: disc
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20120921
Ending_Date: 20120923
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: JPEG images and text data
Source_Contribution:
The SEABed Observation and Sampling System (SEABOSS) was designed by the U.S. Geological Survey (USGS) for rapid and effective collection of seabed images and sediment samples in coastal regions. The observations from video and still cameras and the sediment data are used to explore the nature of the riverbed/seafloor and, in conjunction with high-resolution geophysical data, to make interpretive maps of sedimentary environments and validate the acoustic remote sensing data. This particular setup of the SEABOSS was ultra simplified using only a GoPro HD Hero2 camera, a black and white drop video camera with topside feed, lights and a depth sensor attached to a ultra-lightweight square frame. At station 1 and stations 22-30, this small, simplified SEABOSS frame with the GoPro and video was hand deployed from the starboard side of the R/V Rafael. At these sites, no sediment sample was collected, however visual observations made from the video and photos at sites 22-30 were made and are included in this sediment sample dataset. Due to the poor visibility, the imagery portion of the sampling was halted and at stations 2-21 only the modified Van Veen sampler was used to collect sediment samples (without imagery). Beginning with station 31, through the end of the end of the sampling survey, the imagery frame (with the GoPro and video cameras) was attached to the modified Van Veen grab sampler and deployed together from the starboard side of the R/V Rafael. This sampler with the combined capability of collecting imagery and a sediment sample, a modified version of the original USGS SEABOSS, is known as the mircoSEABOSS or the SEABOSSpro or the GoProSEABOSS. At a typical sampling site, the vessel occupied one of the target stations and deployed this modified SEABOSS. Usually at the end of a short photograph/video survey at each sampling site the winch operator lowered the Van Veen sampler until it rested on the riverbed. When the system was then raised a sample was taken from the riverbed and the sampler recovered to the deck of the survey vessel where a subsample was taken for analysis at the USGS Sediment Laboratory in Wood Hole, MA. The camera time during this survey was set to UTC; calibration photographs with the navigation system indicate that the camera time was 23 seconds ahead of GPS times, therefore a time offset was applied during photo processing. The GoPro camera was set to take a photo every 2 seconds while deployed. The best photos were acquired when the sampler was briefly set down on the riverbed. Likewise, the best video was typically acquired when the sampler was briefly set down on the riverbed prior to taking a sediment sample.
Process_Step:
Process_Description:
Eighty-eight stations were occupied during USGS survey 2012-024-FA with a modified SEABOSS (Blackwood and Parolski, 2001), equipped with a GoPro HD Hero2 and a black and white dropcam video camera collecting photographs and video, respectively. A Van Veen grab sampler was deployed at each station. JPEG photographs were acquired at stations 1 and stations 22-88 (the photo/video system was not used at stations 2-21 due to extremely poor visibility). The digital photographs were downloaded from the camera and backed-up to a laptop and hard-drive periodically during the sampling survey. The original JPEG photographs alone do not represent spatial data, however, post-processing the photographs with the navigation data and survey notes makes the link to spatially locate the imagery. The link is possible because the JPEG photographs EXIF header records acquisition time which can be matched with corresponding time in the navigation logs. However, camera time drift and the precision with which the camera time can be set often results in an offset. In this case, the offset was 23 seconds for the duration of the sampling survey. This offset was corrected for during the post-processing describe below. This process step and all subsequent process steps were performed by the same person - Seth Ackerman
Process_Date: 2012
Source_Produced_Citation_Abbreviation: JPEG photographs
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Seth Ackerman
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
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 x2315
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: sackerman@usgs.gov
Process_Step:
Process_Description:
The GoPro HD Hero2 photographs were culled to remove photos during deployment and recovery of the SEABOSS including images of the water column and those on the deck of the survey vessel. Blurry or otherwise not clear images of the riverbed were removed (unless no other clear image of the riverbed was available). The raw navigation feed from the Hemisphere Differential Global Positioning System (DGPS) receiver was logged at a one-second interval using Microsoft HyperTerminal on a Dell Latitude D820 laptop computer during the sampling survey. Log files were recorded for each survey day (by Gregorian day). The navigation files were processed using an AWK script (no version) called awkseth.gpgga.12024.awk by survey day and concatenated in to a single navigation file. Then a series of PYTHON scripts (SEABOSStools) were run to match up the quality photos with the navigation log.
(1) JPEG_exifextract_gui_sort.py - PYTHON script that extracts the EXIF header information from each photograph including the JPEG filename, date and time.
(2) photo_locs_gui_5_4exif.py - PYTHON script that matches up the corresponding date and times from the formatted output of the previous two PYTHON scripts. A time offset of -23 seconds was applied in this step so that the navigation fix extracted was 23 seconds earlier than the image time.
The output of this is the location shapefile for the bottom photographs with the fields filename, UTC date, UTC time, latitude and longitude.
Source_Used_Citation_Abbreviation: Original JPEG photographs
Source_Used_Citation_Abbreviation: RAW Navigation log files
Source_Used_Citation_Abbreviation: survey notes
Process_Date: 201709
Source_Produced_Citation_Abbreviation: Bottom Photograph Location Shapefile
Process_Step:
Process_Description:
XTools Pro (version 12.0) for ArcGIS (version 10.3.1) was used to reorganize add new fields (TABLE OPERATIONS - TABLE RESTRUCTURE) to the point shapefile including an attribute for the survey ID (CRUISE_ID), device used to collect the photos and samples (DEVICE_ID), the survey vessel (VEHICLE_ID), the date of photo collection (DATE) and the Camera used (CAMERA).
Process_Date: 201709
Process_Step:
Process_Description:
A PYTHON script (UpdatePhotoEXIFv3b.py) was then run that incorporated the matched up location data, along with additional survey information, into the appropriate locations in the EXIF header of each JPEG image. The PYTHON script uses exiftool (version 10.47) to write the information to the image headers. The following tags were populated in the JPEG image headers. Information is duplicated in some tags. This was done because different software packages access different tags.
GPS tags: The values populated are unique for each image and based on the information from the process of pairing the photo with locations in the navigation logfiles.
GPSLatitudeRef
GPSLatitude
GPSLongitudeRef
GPSLongitude
GPSTimeStamp
GSPDateStamp
JPEG tags: The tag is listed along with the information used to populate it - which is the same for every image.
Comment: Photo from a down-looking GoPro HD Hero2 on the USGS modified SEABOSS deployed from the R/V Rafael during survey 2012-024-FA (https://cmgds.marine.usgs.gov/fan_info.php?fan=2012-024-FA)
EXIF tags: The tag is listed along with the information used to populate it - which is the same for every image.
ImageDescription: Photograph of the river-bed in the Connecticut River from USGS survey 2012-024-FA
Artist: Seth Ackerman
Copyright: Public Domain - please credit U.S. Geological Survey
IPTC tags: The tag is listed along with the information used to populate it - which is the same for every image.
Credit: U.S. Geological Survey
Contact: WHSC_data_contact@usgs.gov
Keywords: Connecticut River, Old Saybrook, Essex, Connecticut, 2012-024-FA, SEABOSS, river-bed, USGS
CopyrightNotice: Public Domain - please credit U.S. Geological Survey
Caption-Abstract: Photograph of the river-bed in the Connecticut River from USGS survey 2012-024-FA
XMP tags: The tag is listed along with the information used to populate it - which is the same for every image.
Caption: Photograph of the river-bed in the Connecticut River from USGS survey 2012-024-FA
To extract the information from the image headers using ExifTool, the following command can be used (tested with ExifTool version 10.47):
exiftool -csv -f -filename -GPSTimeStamp -GPSDateStamp -GPSLongitude -GPSLatitude -n -Artist -Credit -comment -keywords -Caption -Copyright -CopyrightNotice -Caption-Abstract -ImageDescription imgtest/*.jpg out.csv
The -csv flag writes the information out in a comma-delimited format. The -n option formats the latitude and longitude as signed decimal degrees.
Source_Used_Citation_Abbreviation: Original JPEG photographs
Process_Date: 201709
Source_Produced_Citation_Abbreviation: New (EXIF updated) JPEG photographs
Process_Step:
Process_Description:
Renamed the photos to include the ISO8601 standard for date and time in the filename and updated the shapefile field for PICNAME. Renaming the photos was done by creating a shell script with original photoname and the new photoname with date and time info parsed from the photo's EXIF metadata.
exiftool -csv *.JPG -GPSTimeStamp -GPSDateStamp | awk -F, '{split($1,a,"_"); split($2,t,":"); split($3,d,":");print "mv -v "$1" "a[1]"_"d[1]d[2]d[3]"T"t[1]t[2]t[3]"Z_"a[2]}'
Process_Date: 201710
Process_Step:
Process_Description:
Exported the shapefile attribute table as a comma-delimited text file (CSV) using QGIS (version 2.18.9). The exported CSV file had two additional columns (X and Y) that were duplicates of the LONG and LAT fields, so X and Y were deleted using MacVIM (version 8.0). The CSV and the shapefile included in the data release have identical data fields.
Process_Date: 20171222
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Entity point
Point_and_Vector_Object_Count: 38
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000001
Longitude_Resolution: 0.000001
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: 2012-024-FA_photos
Entity_Type_Definition: Bottom photographs and locations
Entity_Type_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: PICNAME
Attribute_Definition:
Name of bottom photograph used to uniquely identify between stations, cameras, and photographs: i.e. 2012-024-FA_20120922T150843Z_GOPR5517.JPG, where 2012-024-FA refers to the field activity identifier, 20120922T150843Z refers to the date and time in the ISO8601 standard (YYYYMMDD T= time separator HHMMSS Z= Zulu/UTC time) and GOPR5517.JPG refers to the sequential image number assigned to the image by the camera.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: String used to distinguish photographs.
Attribute:
Attribute_Label: CAMERA
Attribute_Definition: GoPro camera used to collect bottom photograph.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain:
String used to distinguish between different camera models mounted on the SEABOSS.
Attribute:
Attribute_Label: GPSTIME
Attribute_Definition:
UTC time of bottom photograph from GPS navigation file in format HH:MM:SS.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: UTC time of bottom photograph determined by the GPS.
Attribute:
Attribute_Label: CAMR_TIME
Attribute_Definition:
Camera time of bottom photograph from the camera in format HH:MM:SS.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain:
Camera time of bottom photograph determined from the camera's internal clock.
Attribute:
Attribute_Label: TIMEOFFSET
Attribute_Definition:
Offset applied, if any, to match the photograph up to the correct time determined by the GPS navigation. This field is the time difference between the camera time and the GPS time in UTC in the format HH:MM:SS. A value of "-00:00:23" indicates a 23 second offset was applied in processing.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Offset time of bottom photograph.
Attribute:
Attribute_Label: LONG
Attribute_Definition: Longitude in Geographic Coordinates, WGS 84.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -72.413455
Range_Domain_Maximum: -72.33719
Attribute_Units_of_Measure: decimal degrees
Attribute_Measurement_Resolution: 0.000001
Attribute:
Attribute_Label: LAT
Attribute_Definition: Latitude in Geographic Coordinates, WGS 84.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 41.269838
Range_Domain_Maximum: 41.388882
Attribute_Units_of_Measure: decimal degrees
Attribute_Measurement_Resolution: 0.000001
Attribute:
Attribute_Label: JD
Attribute_Definition:
Julian day; Julian day is the integer number representing the interval of time in days since January 1 of the year (265-267 for these data).
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 265
Range_Domain_Maximum: 267
Attribute_Units_of_Measure: days
Attribute_Measurement_Resolution: 1
Attribute:
Attribute_Label: DATE
Attribute_Definition:
Date that the bottom photograph was collected in the format: YYYYMMDD (20120921-20120923 for these data).
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 20120921
Range_Domain_Maximum: 20120923
Attribute_Units_of_Measure: date
Attribute_Measurement_Resolution: 1
Attribute:
Attribute_Label: YEAR
Attribute_Definition:
Year that the bottom photograph was collected (2012 for these data).
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2012
Range_Domain_Maximum: 2012
Attribute_Units_of_Measure: years
Attribute_Measurement_Resolution: 1
Attribute:
Attribute_Label: SURVEYID
Attribute_Definition:
WHCMSC field activity identifier (e.g. "2012-024-FA" where 2012 is the survey year, 024 is survey number of that year, and FA is Field Activity).
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: String used to distinguish cruises by year and ID number.
Attribute:
Attribute_Label: DEVICEID
Attribute_Definition: Device used to collect the sample and bottom photograph.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain:
String used to identify the SEABOSS configuration used during the survey.
Attribute:
Attribute_Label: VEHICLEID
Attribute_Definition: Vehicle (ship) used to collect data during survey 2012-024-FA.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: String used to identify the survey vessel.
Overview_Description:
Entity_and_Attribute_Overview:
The JPEG images can be hyperlinked to their shapefile location in ArcGIS. The CSV file and shapefile have the same attribute fields.
Entity_and_Attribute_Detail_Citation: U.S. Geological Survey
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Seth Ackerman
Contact_Organization: U.S. Geological Survey, Woods Hole Science Center
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Country: USA
Contact_Voice_Telephone: 508-548-8700 x2315
Contact_Electronic_Mail_Address: sackerman@usgs.gov
Resource_Description:
USGS data release 2012-024-FA contains bottom photograph locations and images (38 total images) of the riverbed collected from the Connecticut River (2012-024-FA_SEABOSSphotos.zip). The zip file contains the shapefile 2012-024-FA_photos.shp, a CSV version of the shapefile's attribute table (2012-024-FA_photos.csv) and the riverbed photographs for the GoPro HD Hero2 camera. Federal Geographic Data Committee (FGDC) Content Standards for Digital Geospatial Metadata (CSDGM) metadata files (2012-024-FA_photos.xml) in standard formats are also included in the zip file.
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: Shapefile
Format_Version_Number: ArcGIS 10.3.1
Format_Specification: Shapefile
Format_Information_Content:
The zip file contains bottom photograph locations (in shapefile/CSV formats) and images of the riverbed collected by the U.S. Geological Survey (Woods Hole Coastal and Marine Science Center) from the Connecticut River and the associated metadata.
File_Decompression_Technique: Use WinZip, 7zip, Peazip or pkUnzip
Transfer_Size: 217
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link is a direct link to download the zipped file of the backscatter imagery and metadata. The second and third links will both take you to the field activity data page containing all of the available data from this survey including this dataset.
Digital_Form:
Digital_Transfer_Information:
Format_Name: CSV
Format_Version_Number: QGIS exported CSV file
Format_Specification: Comma Separated Value
Format_Information_Content:
The zip file contains bottom photograph locations (in shapefile/CSV formats) and images of the riverbed collected by the U.S. Geological Survey (Woods Hole Coastal and Marine Science Center) from the Connecticut River and the associated metadata.
File_Decompression_Technique: Use WinZip, 7zip, Peazip or pkUnzip
Transfer_Size: 217
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link is a direct link to download the zipped file of the backscatter imagery and metadata. The second and third links will both take you to the field activity data page containing all of the available data from this survey including this dataset.
Digital_Form:
Digital_Transfer_Information:
Format_Name: JPEG
Format_Version_Number: GoPro HD Hero2
Format_Specification: Joint Photographic Experts Group (JPEG)
Format_Information_Content:
The zip file contains bottom photograph locations (in shapefile/CSV formats) and images of the riverbed collected by the U.S. Geological Survey (Woods Hole Coastal and Marine Science Center) from the Connecticut River and the associated metadata.
File_Decompression_Technique:
Use 7zip, WinZip, Peazip, pkUnzip, Keka or other uncompressing software
Transfer_Size: 217
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link is a direct link to download the zipped file of the backscatter imagery and metadata. The second and third links will both take you to the field activity data page containing all of the available data from this survey including this dataset.
Fees: none
Technical_Prerequisites:
This zip file contains data available in point shapefile and CSV format. The user must have software capable of reading shapefile or CSV format to use these data. An image viewer can be used to see the JPEG images.
Metadata_Reference_Information:
Metadata_Date: 20171222
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Seth Ackerman
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
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 x2315
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: sackerman@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

Generated by mp version 2.9.44 on Thu Dec 28 09:07:39 2017