File:Moon jellyfishes disturbing the top water layer of Gullmarn fjord 1.jpg
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Summary
| Description |
English: Moon jellyfishes (Aurelia aurita) disturbing the top water layer of Gullmarn fjord at Sämstad, Lysekil Municipality, Sweden. The photo was taken on a calm, sunny morning after a rain, so it's likely that the layer is warmer water with some freshwater added. In this case that would make a thermocline coincide with a halocline and resulting in a very thin but visible pycnocline. This difference in density and the altered refractive index is what makes the water look "oily". The jellies are quite small and young, about 5–6 cm (2.0–2.4 in) in diameter, and since they are just below the surface and stirring up the pycnocline beneath them, that would make the layer of warmer freshwater on the fjord about 6–8 cm (2.4–3.1 in) thick at the time. |
| Date | |
| Source | Own work |
| Author | W.carter |
| Camera location |  | View this and other nearby images on: OpenStreetMap |  |
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This is a retouched picture, which means that it has been digitally altered from its original version. Modifications: Some debris in the water, mostly flies, seeds and plant parts, have been removed.
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Licensing
I, the copyright holder of this work, hereby publish it under the following license:
 
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This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. |
| The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:13, 14 July 2020 | | 4,384 × 3,283 (5.89 MB) | W.carter | Uploaded own work with UploadWizard |
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