LASER VELOCIMETRY FOR BENTHIC SEDIMENT TRANSPORT

被引：16

作者：

AGRAWAL, YC

BELTING, CJ

机构：

[1] Woods Hole Oceanographic Inst, Woods, Hole, MA, USA, Woods Hole Oceanographic Inst, Woods Hole, MA, USA

来源：

DEEP-SEA RESEARCH PART A-OCEANOGRAPHIC RESEARCH PAPERS | 1988年 / 35卷 / 06期

关键词：

FLOW OF WATER - Sediment Transport - VELOCIMETERS - Laser Doppler;

D O I：

10.1016/0198-0149(88)90076-3

中图分类号：

P7 [海洋学];

学科分类号：

0707 ;

摘要：

Two deep-sea laser Doppler velocimeter (LDV) systems are described. The first, a backscatter instrument, measures the two horizontal components of velocity at a programmable sequence of heights above the seafloor, from a few cm's to roughly 40 cm. The second instrument, a forward scatter system, measures the downstream and vertical velocities in an inverted bottom flume, SeaDuct, thereby also obtaining the Reynold's stress. Both instruments sample the velocity at 32 Hz although the actual velocity 'realization' rate for the backscatter instrument depends strongly on the suspended mass concentration in the water column. This paper describes the LDV instrumentation and present example data.

引用

页码：1047 / 1068

页数：22

共 34 条

[1]

ADRIAN RJ, 1980, T AM442 U ILL REP

[2] DIRECTIONAL LASER VELOCIMETRY WITHOUT FREQUENCY BIASING .2. [J].