File:Radon detector setup.jpg
![File:Radon detector setup.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/Radon_detector_setup.jpg/800px-Radon_detector_setup.jpg?20200416154221)
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Summary
[edit]DescriptionRadon detector setup.jpg |
English: USGS physical scientist Cordell Johnson installs a special buoy in the waters of the National Park of American Samoa on Ofu in the Manuʻa Islands Group, American Samoa. The special buoy, developed by USGS scientists, measures radon on the reef. Radon is a marker of submarine groundwater discharge that brings low-salinity waters, and sometimes nutrient- and contaminant-laden waters, to the coral reefs. |
Date | |
Source | U.S. Geological Survey |
Author | Curt Storlazzi, USGS Pacific Coastal and Marine Science Center. Public domain. |
Licensing
[edit]Public domainPublic domainfalsefalse |
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This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 15:42, 16 April 2020 | ![]() | 1,500 × 1,125 (377 KB) | MartinB29 (talk | contribs) | Uploaded a work by Curt Storlazzi, USGS Pacific Coastal and Marine Science Center. Public domain. from [https://www.usgs.gov/media/images/radon-detector-setup U.S. Geological Survey] with UploadWizard |
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Metadata
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ISO speed rating | 125 |
Date and time of data generation | 12:20, 1 February 2020 |
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Bits per component |
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Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop 21.0 (Macintosh) |
File change date and time | 03:45, 6 February 2020 |
Y and C positioning | Centered |
Exposure Program | Normal program |
Exif version | 2.3 |
Date and time of digitizing | 12:20, 1 February 2020 |
Meaning of each component |
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APEX aperture | 6.071248 |
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Color space | sRGB |
File source | Digital still camera |
Scene type | A directly photographed image |
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White balance | Auto white balance |
Digital zoom ratio | 0 |
Focal length in 35 mm film | 24 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Reference for direction of image | Magnetic direction |
Direction of image | 265.04 |
GPS tag version | 0.0.3.2 |
Date metadata was last modified | 03:45, 6 February 2020 |
Unique ID of original document | 99DB4AA5BC1FF1E9E3444273199759ED |