Jonathan A. Warrick
Andrew C. Ritchie
Evan T. Dailey
Gerald A. Hatcher
Christine Kranenburg
David G. Zawada
Kimberly K. Yates
2020
Structure-from-Motion bathymetric maps from the Florida Keys, 2019
TIFF
data release
DOI:10.5066/P9V7K7EG
Pacific Coastal and Marine Science Center, Santa Cruz, California
U.S. Geological Survey
https://doi.org/10.5066/P9V7K7EG
https://cmgds.marine.usgs.gov/data-releases/datarelease/10.5066-P9V7K7EG/dataset/4/
Jonathan A. Warrick
Andrew C. Ritchie
Evan T. Dailey
Gerald A. Hatcher
Christine Kranenburg
David G. Zawada
Kimberly K. Yates
2020
SQUID-5 structure-from-motion point clouds, bathymetric maps, orthomosaics, and underwater photos of coral reefs in Florida, 2019
Digital
data release
doi:10.5066/P9V7K7EG
Pacific Coastal and Marine Science Center, Santa Cruz, California
U.S. Geological Survey
https://doi.org/10.5066/P9V7K7EG
Structure-from-Motion (SfM) bathymetric maps were created using seafloor images collected using the new 5-camera system SfM Quantitative Underwater Imaging Device with Five Cameras (SQUID-5). Images were collected during July 2019 by towing the SQUID-5 in 3 to 4 meters of water off of Islamorada in the Florida Keys during 3 days. The five cameras were synchronized together and with a survey-grade Global Positioning System (GPS). Images were collected over diverse benthic settings, including living and senile reefs, rubble, and sand. Bathymetric maps were created from the photos using SfM photogrammetric software.
These bathymetric maps were produced to assess the accuracy, precision, and effectiveness of the new SQUID-5 camera platform.
Additional information about the field activities from which these data were derived is available online at:
https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-630-FA
https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-323-FA
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
20190706
20190716
ground condition
None planned
-80.62214
-80.52600
24.91171
24.89666
USGS Metadata Identifier
USGS:3487ae28-8072-46a8-b179-78190aae6638
ISO 19115 Topic Category
elevation
oceans
Data Categories for Marine Planning
Bathymetry and Elevation
USGS Thesaurus
bathymetry
bathymetry measurement
geospatial datasets
Marine Realms Information Bank (MRIB) keywords
seabed
None
U.S. Geological Survey
USGS
Coastal and Marine Geology Program
CMGP
Coastal and Marine Hazards and Resources Program
CMHRP
Pacific Coastal and Marine Science Center
PCMSC
St. Petersburg Coastal and Marine Science Center
SPCMSC
Geographic Names Information System (GNIS)
Crocker Reef
Florida Keys
Straits of Florida
State of Florida
None
USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey as the originator of the dataset and in products derived from these data. This information is not intended for navigation purposes.
U.S. Geological Survey, Pacific Coastal and Marine Science Center
PCMSC Science Data Coordinator
mailing and physical
2885 Mission Street
Santa Cruz
CA
95060
831-460-4747
pcmsc_data@usgs.gov
https://cmgds.marine.usgs.gov/data-releases/media/2020/10.5066-P9V7K7EG/72423dd1d3cc492c8afb44c78d90ec8e/Bathy_browse.png
Image map showing an example SfM bathymetry model and orthomosaic
PNG
Data collection was funded by U.S. Geological Survey
Microsoft Windows 10
The horizontal and vertical accuracies of the surface models were compared against GPS survey data of known features covered by the survey.
All data fall within expected ranges.
Dataset 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.
SfM-based measurements of the Sediment Elevation Table (SET) stations were within 3 cm of the total uncertainty of the field-based GPS measurements. The average horizontal scaling of the models is between 0.016% and 0.024% of water depth.
SfM-based measurements of the Sediment Elevation Table (SET) stations were within 3 cm of the total uncertainty of the field-based GPS measurements. The average horizontal scaling of the models is between 0.016% and 0.024% of water depth.
Jonathan A. Warrick
Andrew C. Ritchie
Evan T. Dailey
Gerald A. Hatcher
Christine Kranenburg
David G. Zawada
Kimberly K. Yates
2020
Structure-from-Motion underwater photos from the Florida Keys, 2019
BMP
online
U.S. Geological Survey
https://doi.org/10.5066/P9V7K7EG
xyz point data
20190706
20190716
ground condition at time data were collected
digital images
used to generate bathymetric maps
Structure-from-Motion Processing: the complete photo sets of each study area were subsampled such that minimum GPS spacing between the center camera location per collection instance was at least 0.75 m. For each survey site, the subsampled photo quintets were combined with GPS positions and camera-to-GPS-antennae distance vectors (lever arm offsets) and aligned with independent lens models for each camera. The computed camera positions and lens models were then refined using three statistical tools (reconstruction uncertainty, projection accuracy, and reprojection error) in Metashape to eliminate poorly constructed tie points. With trial and error, we found that threshold values of 20, 8 and 0.4 for these statistical tools, respectively, resulted in good alignment and adequately dense tie point distributions in both complex reef settings and simple sandy areas. Once the photo alignment and lens models were optimized, dense point clouds were generated with Metashape using the high point density and moderate filtering settings. The dense point clouds were used in Metashape to generate digital surface models at 1 cm resolution of each study area in TIFF file format.
imagery
202001
Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed.
20201019
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
Corrected working URL links to cmgds data repository to the actual published links
20210317
U.S. Geological Survey
Susan A. Cochran
Geologist
Mailing and Physical
2885 Mission Street
Santa Cruz
CA
95060
831-460-7545
scochran@usgs.gov
Raster
Grid Cell
Universal Transverse Mercator
17N
0.9996
-81
0.0
500000.0
0.0
coordinate pair
0.01
0.01
METERS
NAD_1983_2011_UTM_Zone_17N
GRS 1980
6378137.0
298.257222101
MLLW
1.0E-4
Meters
Explicit elevation coordinate included with horizontal coordinates
Attribute table
Table containing attribute information associated with the dataset
U.S. Geological Survey
Value
Depth relative to mean lower low water (MLLW) in meters
U.S. Geological Survey
-2.26071
-5.05259
Meters
U.S. Geological Survey - ScienceBase
Mailing and Physical
Denver Federal Center, Building 810, Mail Stop 302
Denver
CO
80225
1-888-275-8747
sciencebase@usgs.gov
These data are available in TIFF format (JD192_SET1_DEM_1cm.tif, JD193_SET1_DEM_1cm.tif, JD193_SET2_DEM_1cm.tif, JD194_CheecaRx_DEM_1cm.tif) contained in a single zip file, along with CSDGM FGDC-compliant metadata, and a browse image map of the data (.png). The TIFF data files are named with the following convention: Julian Day number, area, "DEM" (digital elevation model), and resolution (1 centimeter).
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by 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.
TIFF
Agisoft Metashape Professional Version 1.5.2 build 8432 (64 bit)
The .zip file contains four TIFF rasters (.tif) with world files (.tfw).
No compression applied.
48
https://cmgds.marine.usgs.gov/data-releases/media/2020/10.5066-P9V7K7EG/d7a67fd5dd8648cf8663ffb6eef646fc/SQUID5_Florida_BathymetricMaps.zip
https://cmgds.marine.usgs.gov/data-releases/datarelease/10.5066-P9V7K7EG/dataset/4/
https://doi.org/10.5066/P9V7K7EG
Data can be downloaded using the Network_Resource_Name links. The first link is a direct link to download the zipped file of data. The second link points to a landing page with data, metadata, and a browse graphic. The third link points to the landing page for the entire data release.
None.
These data can be viewed with Esri ArcGIS software.
20210317
U.S. Geological Survey, Pacific Coastal and Marine Science Center
PCMSC Science Data Coordinator
mailing and physical
2885 Mission Street
Santa Cruz
CA
95060
831-460-4747
pcmsc_data@usgs.gov
Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998