## adiabat Quick reference

### A Dictionary of Geography (5 ed.)

## age–sex pyramid Quick reference

### A Dictionary of Geography (5 ed.)

## angular momentum Quick reference

### A Dictionary of Geography (5 ed.)

The momentum of a body taking a curved path; for a rotating planet, angular momentum is defined as the moment of the linear momentum of a particle about a point, thus:...

## Area of Outstanding Natural Beauty Quick reference

### A Dictionary of Geography (5 ed.)

## aridity Quick reference

### A Dictionary of Geography (5 ed.)

Dryness; aridity is the most common criterion for the definition and classification of drylands, occurring when *evapotranspiration exceeds precipitation (...

## atmospheric cells Quick reference

### A Dictionary of Geography (5 ed.)

Air may move, with a circular motion, northwards or southwards in a vertical cell; see Trump et al. (1982) *Boundary-Layer Met....*

## base flow Quick reference

### A Dictionary of Geography (5 ed.)

## beach Quick reference

### A Dictionary of Geography (5 ed.)

## beach morphology Quick reference

### A Dictionary of Geography (5 ed.)

Beach form. The occurrence of different types of beach morphology can be parameterized by the dimensionless fall velocity *Ω*, The equation is:...

## beta index Quick reference

### A Dictionary of Geography (5 ed.)

A simple measure of connectivity which can be derived from the formulaβ=eυwhere *e* = number of edges (links), ...

## bid-rent theory Quick reference

### A Dictionary of Geography (5 ed.)

## bifurcation ratio Quick reference

### A Dictionary of Geography (5 ed.)

## biogeomorphology Quick reference

### A Dictionary of Geography (5 ed.)

## capture Quick reference

### A Dictionary of Geography (5 ed.)

## cartogram Quick reference

### A Dictionary of Human Geography

## catchment Quick reference

### A Dictionary of Geography (5 ed.)

The area drained by a river. Catchment shape can be expressed by its circularity ratio:Rc=AA...

## catena Quick reference

### A Dictionary of Geography (5 ed.)

A sequence of soil types arising from the same parent rock, but distinct from each other because of the variations—such as ...

## cellular automata Quick reference

### A Dictionary of Geography (5 ed.)

## central place Quick reference

### A Dictionary of Geography (5 ed.)

A settlement or nodal point which, by its functions, serves an area round about it for goods and services. Central place theory...