Meteorology

Meteorology

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

Industry: Weather

Add a new term

Contributors in Meteorology

Become a Contributors

Meteorology

nonlocal static stability

Weather; Meteorology

A term emphasizing that the whole vertical profile of virtual potential temperature θ ''v'' , not just the the local vertical gradient ∂θ ''v'' /∂''z'', must be used when determining whether flow ...

nonmethane hydrocarbons (NMHCs)

Collectively, all the hydrocarbons other than methane. Methane is fairly long-lived in the atmosphere and has a large and relatively constant mixing ratio in the troposphere. The other hydrocarbons ...

nonlocal mixing

Weather; Meteorology

The vertical movement and intermingling of fluid from all possible source locations (neighboring and nonneighboring), to produce a mixture at some other location. The fraction of air mixing into each ...

nonlocal closure

Weather; Meteorology

A method of approximating unknown turbulence quantities, such as covariances, by sums or integrals (over the whole domain of turbulence) of known quantities. This mimics the effects of a spectrum of ...

nonlinearity of the equation of state

Weather; Meteorology

The nonlinear dependence of seawater density on temperature, salinity, and pressure in the equation of state.

nonlinear instability

Weather; Meteorology

The instability of a physical or mathematical system that arises from the nonlinear nature of relevant variables and their interactions within the system.