Search Results

Hillock original

notation	H
definition	compound landform element comprising a narrow crest and short adjoining slopes, the crest length being less than the width of the landform element.

Ridge original

notation	R
definition	compound landform element comprising a narrow crest and short adjoining slopes, the crest length being greater than the width of the landform element.

Height of landform element original

definition	difference in elevation between the upper and lower margins of the element, measured along any slope line. Height can mean quite different things and must be carefully defined. For crests, ridges and hillocks, define the upper margin as the point where the selected slope line coalesces with others to form the ridge line. For depressions, define the lower margin as the point where the selected slope line coalesces with others to form the course line.

Length of landform element original

definition	horizontal distance between the upper and lower margins of the element, measured down a slope line. For crests, the slope line to be used is the ridge line; for depressions, the course line (see Figure 2a). By this definition, many crests and open depressions become very long.

Width of landform element original

definition	horizontal distance between the lateral margins of the element, measured perpendicularly to the length.

Non-human biological agents original

notation	BI
definition	Non-human biological agents; coral (Biological agents).

Channelled stream flow original

notation	CH
definition	Channelled stream flow (Stream flow).

Diastrophism original

notation	DI
definition	Diastrophism; earth movements (Internal forces).

Eustasy original

notation	EU
definition	Eustasy; changes in sea level (Standing water).

Frost original

notation	FR
definition	Frost (Ice).