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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 ]
Wilde Lake / w aɪ l d l eɪ k / is a human-made drainage reservoir dug in 1966 and the name of the surrounding "village" of neighborhoods located in Columbia, Maryland, just north and west of Columbia Town Center. The village was the first part of Columbia's "New Town" to be built in the late 1960s, James W. Rouse and Frazar B. Wilde formally ...
It superseded the National Geodetic Vertical Datum of 1929 (NGVD 29), [2] previously known as the Sea Level Datum of 1929. NAVD 88, along with North American Datum of 1983 (NAD 83), is set to be replaced in 2025 with a new geometric reference frame and geopotential datum, based on GPS and gravimetric geoid models.
A common and relatively straightforward mean sea-level standard is instead a long-term average of tide gauge readings at a particular reference location. [1] The term above sea level generally refers to the height above mean sea level (AMSL). The term APSL means above present sea level, comparing sea levels in the past with the level today.
The Glenelg River is a river in the Kimberley region of Western Australia. The headwaters of the river rise in the Elizabeth and Catherine Range. The river flows in a north-westerly direction past the Whately Range and discharges into Maitland Bay then through George Water, into Doubtful Bay and finally the Indian Ocean .
Standard sea-level conditions (SSL), [1] also known as sea-level standard (SLS), defines a set of atmospheric conditions for physical calculations. The term "standard sea level " is used to indicate that values of properties are to be taken to be the same as those standard at sea level, and is done to define values for use in general calculations.
Members of the Local Environmental Action Demanded (LEAD) Agency, an area advocacy group, worry that raising the water level will make flooding worse at the lake's upstream rivers. Over the years ...
For Slayton's contributions to the early planning of Columbia, the community center in the Wilde Lake village, Slayton House, was named for him. Wilde Lake was the first village area to be developed in Columbia; accordingly, the town's first high school was Wilde Lake High School, which opened in 1971 as a "model school for the nation ...