File:Wrecks of the Semi Deep 5.jpg
Original file (7,008 × 4,672 pixels, file size: 30.14 MB, MIME type: image/jpeg)
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Summary
[edit]DescriptionWrecks of the Semi Deep 5.jpg |
English: Wrecks of the Semi-Deep
Archaeologists and biologists from BOEM and Woods Hole Oceanographic Institution ventured 100 miles offshore to survey and 3D map a series of shipwrecks and rocky outcroppings to learn more about the wrecks and explore what life is growing on them. Much of the seafloor of the Gulf of Mexico is in the mesophotic (meaning “middle light”) zone, depths at which sunlight just barely reaches and is too dim to support most photosynthesis. This zone between 30-150 meters (~100-500 feet) is deeper and darker than the well-lit shallows that are easy for divers to access but not as deep as the pitch-black depths that is the domain of most Remotely Operated Vehicles (ROVs). Because of that, the mesophotic is not well-known, and we are still learning what life lives in this zone of low light and what wrecks can be found at these depths. This expedition sent an ROV down to map several wrecks, including the C.P. Baker, an early floating oil platform that sank in 1964, and the Hamlet, a motor tanker sunk by a U-boat in 1942. The team used an ROV outfitted with 4K video cameras to document the ecosystem and to create 3D models of the ships similar to those found on BOEM's Virtual Archaeology Museum. The science was supported by a collective effort from the University of Rhode Island, Marine Imaging Technology, Reliant Robotics, and Aqueos. (Photos by Patrick Flanagan, Inner Space Center, University of Rhode Island) Visit BOEM’s Virtual Archaeology Museum: boem.gov/environment/virtual-archaeology-museum |
Date | |
Source | https://www.flickr.com/photos/109896362@N04/52358164284/ |
Author | BOEM-OPA |
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This image was originally posted to Flickr by BOEM-OPA at https://flickr.com/photos/109896362@N04/52358164284. It was reviewed on 15 November 2022 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-sa-2.0. |
15 November 2022
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 21:17, 14 November 2022 | 7,008 × 4,672 (30.14 MB) | Ser Amantio di Nicolao (talk | contribs) | Uploaded a work by BOEM-OPA from https://www.flickr.com/photos/109896362@N04/52358164284/ with UploadWizard |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | SONY |
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Camera model | ILCE-7M4 |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/2.8 |
ISO speed rating | 12,800 |
Date and time of data generation | 17:24, 19 June 2022 |
Lens focal length | 23 mm |
Width | 7,008 px |
Height | 4,672 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 240 dpi |
Vertical resolution | 240 dpi |
Software used | Adobe Photoshop 23.5 (Windows) |
File change date and time | 10:25, 14 September 2022 |
Exposure Program | Manual |
Exif version | 2.32 |
Date and time of digitizing | 17:24, 19 June 2022 |
APEX shutter speed | 5.906891 |
APEX aperture | 2.970854 |
APEX brightness | −2.75625 |
APEX exposure bias | 1 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
DateTimeOriginal subseconds | 194 |
DateTimeDigitized subseconds | 194 |
Color space | sRGB |
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Focal plane resolution unit | 3 |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Manual white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 23 mm |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Lens used | E 17-28mm F2.8-2.8 |
Date metadata was last modified | 03:25, 14 September 2022 |
Unique ID of original document | 86526FF066C185E7F45D45653E64C57C |
IIM version | 4 |