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The four line gauges of the station (two short ones, for lower water levels, are located in the ditch) The gauge is located at Rhine-kilometre 546.3 on the right side of the river (slightly downriver from Pfalzgrafenstein Castle), near the center of Kaub and adjacent to the Kaub ferry, signal mast and the former pilot station.
A chart datum is the water level surface serving as origin of depths displayed on a nautical chart and for reporting and predicting tide heights. A chart datum is generally derived from some tidal phase, in which case it is also known as a tidal datum. [1] Common chart datums are lowest astronomical tide (LAT) [1] and mean lower low water (MLLW).
The reference water levels are used on inland waterways to define a range of water levels allowing the full use of the waterway for navigation. [1] Ship passage can be limited by the water levels that are too low, when the fairway might become too shallow for large ("target", "design") ships, or too high, when it might become impossible for the target ships to pass under the bridges. [1]
The main factors affecting sea level are the amount and volume of available water and the shape and volume of the ocean basins. The primary influences on water volume are the temperature of the seawater, which affects density, and the amounts of water retained in other reservoirs like rivers, aquifers, lakes, glaciers, polar ice caps and sea ice.
Lake Champlain stayed at flood stage for 67 days from April to June, and on May 10, 2011, the lake broke its previous flood level set in 1869 by reaching 102.8 ft. at Rouses Point, New York. [ 3 ] [ 2 ] [ 4 ] The floods affected about 3,000 homes in Montérégie [ 5 ] [ 6 ] and caused an estimated six million U.S. dollars of damage in seven ...
The water level is kept high from May through September for recreation purposes. Throughout the summer, the water level is lowered by up to 3 feet (0.91 m) to provide for downstream irrigation needs, and is further lowered after September to provide necessary water storage capability to prevent possible downstream flood damage during the ...
The surface area, surface elevation, and water volume of the reservoir fluctuate based on inflow and local climatic conditions. [4] In terms of capacity, the Bureau of Reclamation vertically divides the reservoir into a set of pools based on volume and water level, and it considers the reservoir full when filled to the capacity of its active ...
In time, this resulted in major land subsidence by the 1970s with local areas having 0.30 to 8.5 m (1 to 28 ft) of subsidence. With the creation and use of the California Aqueduct along these regions, surface water being transported put a halt on significant compaction and a recovery in ground water levels now with less ground water pumping. [22]