- visibility depth
- <ecol> (waters) ■ Sichttiefe f DIN 4049-2
English-german technical dictionary. 2013.
English-german technical dictionary. 2013.
depth perception — The ability to estimate depth or distance between points in the field of vision. Depth perception reduces progressively as visibility reduces and is totally absent in darkness … Aviation dictionary
visibility — the depth at which the black and white parts of a disk can just be distinguished; a measure of water clarity … Dictionary of ichthyology
Driver visibility — In transport, driver visibility is the maximum distance at which the driver of a vehicle can see and identify prominent objects around the vehicle.[1] Visibility is primarily determined by weather conditions (see visibility) and by a vehicle s… … Wikipedia
Optical depth — For other uses, see Optical depth (astrophysics). Optical depth, or optical thickness, is a measure of transparency. Optical depth is defined by the negative logarithm of the fraction of radiation (e.g., light) that is not scattered or absorbed… … Wikipedia
Trophic state index — The quantities of nitrogen, phosphorus, and other biologically useful nutrients are the primary determinants of a body of water s trophic state index (TSI). Nutrients such as nitrogen and phosphorus tend to be limiting resources in standing water … Wikipedia
Hypereutrophic — lakes are very nutrient rich lakes characterized by frequent and severe nuisance algal blooms and low transparency. Hypereutrophic lakes are the most biologically productive lakes, and support large amounts of plants, fish and other animals.… … Wikipedia
Technical diving — Technical diver during a decompression stop. Technical diving (sometimes referred to as Tec diving) is a form of scuba diving that exceeds the scope of recreational diving (although the vast majority of technical divers dive for recreation and… … Wikipedia
Underwater searches — are procedures carried out by divers in order to find a known or suspected target object or objects in a specified search area under water. There are a number of techniques in general use by Commercial, Scientific, Public service, Military, and… … Wikipedia
Blizzard of 1977 — Snow drifts made travel difficult in parts of New York (February 7, 1977), shown is the city of Buffalo … Wikipedia
Great Lakes Blizzard of 1977 — The Blizzard of ‘77 was a deadly blizzard that hit Buffalo, New York and the area around it in New York and Ontario (and to a lesser extent, surrounding regions) from January 28 to February 1, 1977. Daily peak gusts of 69, 51, 52, 58 and 46 miles … Wikipedia
Diving sites of Guam — Guam has some of the best dive sites in the world since there has been minimal[clarification needed] tourist impact compared to other better known dive locations. Piti Bomb Holes has been built up as a tourist attraction allowing tourists to… … Wikipedia