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TERRAIN ROUGHNESS [1 record]
Record 1 - internal organization data 2007-09-28
Record 1, English
Record 1, Subject field(s)
- Geomorphology and Geomorphogeny
- Atmospheric, Climatic and Meteorological Phenomena
Record 1, Main entry term, English
- ground roughness
1, record 1, English, ground%20roughness
correct, officially approved
Record 1, Abbreviations, English
Record 1, Synonyms, English
- roughness of ground 2, record 1, English, roughness%20of%20ground
correct
- surface roughness 2, record 1, English, surface%20roughness
correct
- roughness of surface 2, record 1, English, roughness%20of%20surface
correct
- terrain roughness 3, record 1, English, terrain%20roughness
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Surface Roughness. The surface of the ground has a major influence on early season avalanching. Roughness of surface determines the snow depth needed to fill irregularities, controls the amount of creep and significantly affects the ability of the snow to avalanche to the ground in many regions. Generally, the rougher the ground surface the more snow depth is required before avalanching will take place; broken terrain and boulder fields won't become avalanche slopes until sufficient snow has fallen to cover most of the rocks. ... Professional hazard evaluators are using a figure of 30 to 60 cm, depending on location, as the minimum snow depth necessary to cover roughness of ground before natural avalanching occurs. This figure applies to many areas but should not be taken as an infallible rule of thumb. 2, record 1, English, - ground%20roughness
Record number: 1, Textual support number: 2 CONT
A 1-metre snowpack will typically cover all of the ground roughness. [Example approved by the Avalanche Bulletin Terminology Standardization Committee.] 1, record 1, English, - ground%20roughness
Record number: 1, Textual support number: 1 OBS
Rough ground will anchor the snowpack until it is deep enough to form a relatively smooth surface. Bedrock, boulders (about 2 or 3 m apart), stumps, logs, short stiff shrubs, and benches are all surface features that provide good anchors to hold the snowpack. 4, record 1, English, - ground%20roughness
Record number: 1, Textual support number: 2 OBS
ground roughness: term officially approved by the Avalanche Bulletin Terminology Standardization Committee. 5, record 1, English, - ground%20roughness
Record 1, Key term(s)
- ground surface roughness
Record 1, French
Record 1, Domaine(s)
- Géomorphologie et géomorphogénie
- Phénomènes météorologiques, climatiques et atmosphériques
Record 1, Main entry term, French
- rugosité du sol
1, record 1, French, rugosit%C3%A9%20du%20sol
correct, feminine noun, officially approved
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Un manteau neigeux d'une épaisseur de 1 m est généralement suffisant pour recouvrir la rugosité du sol. [Exemple entériné par le Comité d'uniformisation de la terminologie des bulletins d'avalanche.] 2, record 1, French, - rugosit%C3%A9%20du%20sol
Record number: 1, Textual support number: 1 OBS
rugosité du sol : terme uniformisé par le Comité d'uniformisation de la terminologie des bulletins d'avalanche. 3, record 1, French, - rugosit%C3%A9%20du%20sol
Record 1, Spanish
Record 1, Textual support, Spanish
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