Meteorology

Meteorology

A database of terms pertaining to the scientific study of the atmosphere.

Contributors in Meteorology

Meteorology

One of the western boundary currents of the Atlantic Ocean and part of the pathway for water from the Southern into the Northern Hemisphere in the global ocean conveyor belt. Flowing northward along ...

North Atlantic Deep Water (NADW)

Weather; Meteorology

A water mass found in the Atlantic at depths between 1000 and 4000 m that can be traced from there into most other ocean basins. It is formed in the North Atlantic from some 5 Sv (5 × 10 6 m 3 s −1 ...

North Atlantic Current

Weather; Meteorology

The eastward flowing current that originates from the Gulf Stream Extension east of the Grand Banks (about 40°N, 50°W). It initially forms part of the Atlantic subtropical gyre but separates from it ...

North American high

Weather; Meteorology

The relatively weak general area of high pressure that, as shown on mean charts of sea level pressure, covers most of North America during winter. This pressure system is not nearly as well-defined ...

Normand's theorem

Weather; Meteorology

A theorem in psychrometry that states that the dewpoint temperature is always less than or equal to the wet-bulb temperature, which is always less than or equal to the dry-bulb temperature. It is ...

Nordenskjöld line

Weather; Meteorology

The line connecting all places at which the mean temperature (°C) of the warmest month is equal to 9 − 0. 1''k'', where ''k'' is the mean temperature of the coldest month. (In degrees Fahrenheit the ...

Nipher shield

Weather; Meteorology

A conically shaped, copper, rain-gauge shield. It is used to prevent the formation of vertical wind eddies in the vicinity of the mouth of the gauge, thereby making the rainfall catch a ...