{{{image}}}
This template is part of series of templates, which are used as building blocks of Wikipedia:Picture of the day display templates. They are used to indirectly extract information from parameters, which are saved in subpages of Template:POTD.
| Template | Via parameter | Value | Description |
|---|---|---|---|
| {{POTD image}} | |image= |
Draining the Oceans video by NASA.webm |
Filename of the picture. |
| {{POTD size}} | |size= |
700 |
Preferred size of the picture. It is 300 by default.
|
| {{POTD title}} | |title= |
Bathymetry | A short text, describing the picture, often a wikilink. |
| {{POTD texttitle}} | |texttitle= |
Bathymetry | A short text, describing the picture without wikilinks. |
| {{POTD caption}} | |caption= |
Bathymetry is the study of the underwater depth of sea and ocean floors, lake floors, and river floors. It has been carried out for more than 3,000 years, with the first recorded evidence of measurements of water depth occurring in ancient Egypt. Bathymetric measurements are conducted with various methods, including depth sounding, sonar and lidar techniques, buoys, and satellite altimetry. However, despite modern computer-based research, the depth of the seabed of Earth remains less well measured in many locations than the topography of Mars. Bathymetry has various uses, including the production of bathymetric charts to guide vessels and identify underwater hazards, the study of marine life near the bottom of bodies of water, coastline analysis, and ocean dynamics, including predicting currents and tides. This video, created by the Scientific Visualization Studio at NASA's Goddard Space Flight Center, simulates the effect on a satellite world map of a gradual decrease in worldwide sea levels. As the sea level drops, more seabed is exposed in shades of brown, producing a bathymetric map of the world. Continental shelves appear mostly by a depth of 140 meters (460 ft), mid-ocean ridges by 3,000 meters (9,800 ft), and oceanic trenches at depths beyond 6,000 meters (20,000 ft). The video ends at a depth of 10,190 meters (33,430 ft) below sea level – the approximate depth of the Challenger Deep, the deepest known point of the seabed. | A long text, describing the picture. Usually it is a blurb from the linked Wikipedia article. |
| {{POTD credit}} | |credit= |
Video credit: NASA / Goddard Space Flight Center / Horace Mitchell, and James O'Donoghue | Credit for the picture. |
| {{POTD thumb}} | |thumb= |
None | Thumbnail for the picture. Used for animations. |
See also
- For examples of usage of these parts, see Category:POTD display templates and Category:POTD layout templates.
- For more detailed description of the parameters used by POTD templates, see Wikipedia:Picture of the day/Guidelines § Template parameters and Template:POTD/doc.