Drying height
Encyclopedia
On a nautical chart
, the drying height is the vertical distance
of the seabed that is exposed by the tide
, above the level of the sea
at the lowest astronomical tide.
On admiralty chart
s a drying height is distinguished from a depth by being underlined.
Nautical chart
A nautical chart is a graphic representation of a maritime area and adjacent coastal regions. Depending on the scale of the chart, it may show depths of water and heights of land , natural features of the seabed, details of the coastline, navigational hazards, locations of natural and man-made aids...
, the drying height is the vertical distance
Distance
Distance is a numerical description of how far apart objects are. In physics or everyday discussion, distance may refer to a physical length, or an estimation based on other criteria . In mathematics, a distance function or metric is a generalization of the concept of physical distance...
of the seabed that is exposed by the tide
Tide
Tides are the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the moon and the sun and the rotation of the Earth....
, above the level of the sea
Sea
A sea generally refers to a large body of salt water, but the term is used in other contexts as well. Most commonly, it means a large expanse of saline water connected with an ocean, and is commonly used as a synonym for ocean...
at the lowest astronomical tide.
On admiralty chart
Admiralty chart
Admiralty charts are nautical charts issued by the United Kingdom Hydrographic Office and subject to Crown Copyright. Over 3,000 charts are available and cover virtually the entire world in various levels of detail depending on the density of traffic and hazards...
s a drying height is distinguished from a depth by being underlined.