U.S. Geological Survey
20171222
Shallow Along Reef Track Imaging System (sATRIS) Images – Dry Tortugas, Florida, 2009
first
remote-sensing image
U.S. Geological Survey Data Release
doi:10.5066/F7CZ35CT
St. Petersburg, FL
U.S. Geological Survey
https://doi.org/10.5066/F7CZ35CT
Underwater digital images, single-beam bathymetry, and global positioning system (GPS) data were collected June 13-14, 2009 at Pulaski Shoal within Dry Tortugas National Park, Florida, USA. A total of 195,406 images of the seafloor and water column were collected along pre-defined transect lines and organized into 3 sets: track1, track2, and track3. This data release contains a subset of those images (32,135 images), all of which were used for benthic habitat classification, and contain GPS data. The data were collected using the U.S. Geological Survey (USGS) shallow Along Track Reef Imaging System (sATRIS), a boat-based, pole-mounted sensor package for mapping shallow-water benthic environments. Two other implementations exist: A towed system called Deep ATRIS and a profiling system called Drift ATRIS. All three ATRIS implementations incorporate a digital still camera and an acoustic depth sounder.
These data were collected to support the Benthic Habitat Mapping & Monitoring task of the USGS Coral Reef Ecosystem Studies project (http://coastal.er.usgs.gov/crest/). Benthic community composition, topographic relief, areal extent, and temporal stability are critical factors that contribute to the value of a given marine habitat. With the emergence of Marine Protected Areas (MPAs) as a priority management tool for protecting coral reef resources, knowledge of these essential habitat components is paramount for designing effective strategies for the management of marine reserves. This dataset was acquired during USGS field activity number 09DAF01, additional survey and data details are available at https://cmgds.marine.usgs.gov/fan_info.php?fan=09DAF01.
sATRIS images were saved in the Joint Photographic Experts Group (JPEG) format using a quality factor of 1000 (highest quality/minimal compression). Since the camera and depth sounder are co-located, sounding data corresponds to the distance of the camera above the seafloor. Because the camera and depth sounder are separated from the GPS antenna (Ashtech Marine antenna, Model 111661, S/N 6655) by a fixed distance (408.94 cm), water depth can be estimated from these distance measurements. GPS position, collection date and time, and camera distance-above-seafloor are stored in the Exchangable Image File format (Exif) header of most images. More information on ATRIS can be found in Lidz and Zawada, 2013.
20090613
20090614
ground condition
None planned
-82.84604733
-82.79510833
24.71867934
24.67856574
USGS Metadata Identifier
USGS:9f4a5961-c7e6-4db3-8fcd-d4bdd6a8c161
ISO 19115 Topic Category
geoscientificInformation
imageryBaseMapsEarthCover
oceans
USGS Thesaurus
aquatic biology
marine geology
remote sensing
None
sATRIS
shallow Along Track Reef Imaging System
remote sensing
seafloor imagery
habitat mapping
benthic surveys
digital imagery
shallow marine habitat mapping
Global Change Master Science Directory
OCEAN > BATHYMETRY/SEAFLOOR TOPOGRAPHY > BATHYMETRY
OCEAN > COASTAL PROCESSES > CORAL REEFS
DOI/USGS/CMG > COASTAL AND MARINE GEOLOGY, U.S. GEOLOGICAL SURVEY, U.S. DEPARTMENT OF INTERIOR
GCMD Instrument
EARTH REMOTE SENSING INSTRUMENTS > PASSIVE REMOTE SENSING > PHOTON/OPTICAL DETECTORS > CAMERAS > CAMERAS
Geographic Names Information System
Pulaski Shoal
Dry Tortugas
Florida
Oregon Geospatial Enterprise Office (GEO) Stratum Keyword
epipelagic
None
2009
None
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. The U.S. Geological Survey requests to be acknowledged as originator of these data in future products or derivative research.
David Zawada
U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL
Research Oceanographer
mailing and physical address
600 4th Street South
St. Petersburg
FL
33701
USA
727 502-8132
727 502-8181
dzawada@usgs.gov
M-F, 9:00-5:00 ET
Acknowledgment of the U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, as a data source would be appreciated in products developed from these data, and such acknowledgment as is standard for citation and legal practices for data source is expected. Sharing of new data layers developed directly from these data would also be appreciated by the U.S. Geological Survey staff. Users should be aware that comparisons with other datasets for the same area from other periods may be inaccurate because of inconsistencies resulting from changes in photointerpretation, mapping conventions, and digital processes over time. These data are not legal documents and are not to be used as such.
Unclassified
Unclassified
None
Microsoft Windows 7 Enterprise Service Pack 1; Esri ArcCatalog 10.4.1
Lidz, BH and Zawada, DG
2013
Possible Return of Acropora cervicornis at Pulaski Shoal, Dry Tortugas National Park, Florida
Journal of Coastal Research
v. 29, p. 256-271
https://doi.org/10.2112/JCOASTRES-D-12-00078.1
Zawada D.G.
2003
Image processing of underwater multispectral imagery
IEEE Journal. of Oceanic Engineering
v. 28 (4), p. 583-594
10.1109/JOE.2003.819157
All soundings were collected with an Airmar EchoRange SS510 Smart Sonar Depth Sensor. Manufacturer specifications state a 9-degree beam angle; a Depth Reading Range of 0.4 m to 200 m; a Depth Resolution of 0.01 m; a Depth Precision of 0.25% at full range; and a Frequency of 200 kHz.
Data cover the area specified for this project without any known issues.
Some of the sATRIS images collected during this survey did not have GPS and/or depth sounder data, due to drop-outs or recording errors. Images without GPS data could not be differentially corrected, and no water depths were computed for them, so they were excluded from this data release. Images without depth sounder data are included in this data release, but the depth and camera height information is missing from those images.
Sub-decimeter in horizontal accuracy.
Typically, sub-decimeter vertical elevation accuracies for these data are based on analysis of survey-line crossings. Vertical accuracies may differ based on the type of terrain and the accuracy of the GPS measurements.
High-resolution, geo-located images of the seafloor were captured between June 13 and 14, 2009, to characterize the seafloor and ground truth benthic habitat mapping efforts. The sATRIS was deployed from the USGS research vessel (R/V) Halimeda, running at a nominal speed of 2 knots and following pre-determined survey tracklines. GPS data were simultaneously collected at a fixed land-based location (24 37 46.70015 N, 82 52 22.29828 W) and on the R/V Halimeda during image and bathymetry acquisition using Ashtech Z-Xtreme GPS receivers. In this study, sATRIS images were collected at a rate of 5 hertz (Hz), the single-beam depth soundings at 10 Hz, and the GPS data at 1 Hz. The GPS data were differentially corrected using GrafNav Version 8.40.5121, converted to the North American Datum of 1983 (2011) and the North American Vertical Datum of 1988 (using the GEOID12A model), and have sub-decimeter accuracy. Please note that these data are not suitable for navigational use, nor for determining absolute elevation measurements.
20091211
BJ Reynolds
U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL
Engineering Technician
mailing and physical address
600 4th Street South
St. Petersburg
FL
33701
USA
727 502-8067
breynolds@usgs.gov
M-F, 8:00-4:00 ET
Water depths were computed for each sATRIS image with valid, differentially-corrected GPS and depth-sounder data using USGS-developed software. Not all images have valid GPS and/or sounder data. These images could not be differentially-corrected, and no water depths were computed for them, so they were excluded from this data release. All the data collected during this survey are stored on hard drives and archived at the U.S. Geological Survey office in St. Petersburg, Florida.
20110610
Dave Zawada
U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL
Research Oceanographer
mailing and physical address
600 4th Street South
St. Petersburg
FL
33701
USA
727 502-8132
dzawada@usgs.gov
M-F, 9-5 ET
Raw sATRIS images exhibit barrel distortion due to the wide-angle camera lens. The images in this data release were corrected using an in-house image de-warping algorithm (Zawada, 2003).
20161215
Dave Zawada
U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL
Research Oceanographer
mailing and physical address
600 4th Street South
St. Petersburg
FL
33701
USA
727 502-8132
dzawada@usgs.gov
M-F, 9-5 ET
Additional Exif header information was added to the images using ExifTool by Phil Harvey (https://www.sno.phy.queensu.ca/~phil/Exiftool/). A Java program was developed by USGS staff to make the Exif header editing process faster and more automated. The tags populated in the headers are: Caption, Artist, Credit, Copyright, CopyrightNotice, Comment, Keywords, Contact, Caption-Abstract, GPSLatitude, GPSLatitudeRef, GPSLongitude, GPSLongitudeRef, GPSAltitude, GPSAltitudeRef, SubjectDistance, GPSTimeStamp, GPSDateStamp.
20161215
Dave Zawada
U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL
Research Oceanographer
mailing and physical address
600 4th Street South
St. Petersburg
FL
33701
USA
727 502-8132
dzawada@usgs.gov
M-F, 9:00-5:00 ET
A Java program was developed to extract only the images that were both used for the habitat classification, and contained valid GPS and depth data. This subset of images is provided in this data release.
20161215
Dave Zawada
U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL
Research Oceanographer
mailing and physical address
600 4th Street South
St. Petersburg
FL
33701
USA
727 502-8132
dzawada@usgs.gov
M-F, 9:00-5:00 ET
Metadata created in Notepad++.
20161219
Dave Zawada
U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL
Research Oceanographer
mailing and physical address
600 4th Street South
St. Petersburg
FL
33701
USA
727 502-8132
dzawada@usgs.gov
M-F, 9:00-5:00 ET
Added keywords section with USGS persistent identifier as theme keyword.
20201013
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
Mailing and Physical
384 Woods Hole Road
Woods Hole
MA
02543-1598
508-548-8700 x2251
508-457-2310
vatnipp@usgs.gov
Image
Raster
0.000001
0.000001
Decimal degrees
North American Datum of 1983 (2011)
Geodetic Reference System 80
6378137.000000
298.25722210100002
North American Vertical Datum of 1988 (GEOID12A)
0.20
meters
Explicit elevation coordinate included with horizontal coordinates
All Exif headers contain: Caption, Artist, Credit, Copyright, CopyrightNotice, Comment, Keywords, Contact, Caption-Abstract, GPSLatitude, GPSLatitudeRef, GPSLongitude, GPSLongitudeRef, water depth (labeled as GPSAltitude), GPSAltitudeRef, camera distance to seafloor (labeled as SubjectDistance), GPSTimeStamp, GPSDateStamp. Information is duplicated in some tags, this was done because different software packages access different tags.
To extract the information from the image headers using ExifTool, the following command can be used (tested with ExifTool version 10.2.5.0): Exiftool -csv -f -filename -GPSTimeStamp -GPSDateStamp -GPSLongitude -GPSLatitude -GPSAltitude -GPSAltitudeRef -n -SubjectDistance -Artist -Credit -Comment -Keywords -Caption -Caption-Abstract -Copyright -CopyrightNotice -Contact -ImageDescription directoryname/*.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.
U.S. Geological Survey
Dave Zawada
Research Oceanographer
mailing and physical address
600 4th Street South
St. Petersburg
FL
33701
USA
727 502-8132
M-F, 9:00-5:00 ET
DRTO2009_ATRIS_track1, DRTO2009_ATRIS_track2, DRTO2009_ATRIS_track3
Although these data have been processed successfully on a computer system at the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. The USGS shall not be held liable for improper or incorrect use of the data described or contained herein. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
JPEG
1
JPEG
https://coastal.er.usgs.gov/data-release/doi-F7CZ35CT/data/DRTO2009_ATRIS_track1.zip
https://coastal.er.usgs.gov/data-release/doi-F7CZ35CT/data/DRTO2009_ATRIS_track2.zip
https://coastal.er.usgs.gov/data-release/doi-F7CZ35CT/data/DRTO2009_ATRIS_track3.zip
None
Contact U.S. Geological Survey.
Vary
Contact U.S. Geological Survey for details.
20201013
Dave Zawada
U.S. Geological Survey, St. Petersburg Coastal and Marine Science Center, St. Petersburg, FL
Research Oceanographer
mailing and physical address
600 4th Street South
St. Petersburg
FL
33701
USA
727 502-8132
dzawada@usgs.gov
M-F, 9:00-5:00 ET
Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998
local time