ROUGHNESS LENGTHS FOR TEMPERATURE AND MOMENTUM OVER HETEROGENEOUS TERRAIN

被引:23
作者
HIGNETT, P
机构
[1] Meteorological Office, Meteorological Research Flight, Y 46, DRA (Aerospace), Farnborough, GU 14 6TD, Hampshire
关键词
D O I
10.1007/BF00705598
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
Measurements are presented describing the behaviour of roughness lengths for momentum and temperature for heterogenous terrain of low fractional rough cover. The momentum roughness lenghts were found to be up to several orders of magnitude larger than that for temperature, behaviour which is characteristic of a bluff-rough type surface and which is consistent with previous experimental and theoretical studies. This contrasts with observations over uniform, vegetated surfaces, which show only an order-of-magnitude increase of momentum roughness length over that for temperature.
引用
收藏
页码:225 / 236
页数:12
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