Momentum and Turbulent Kinetic Energy Budgets Within the Park Avenue Street Canyon During the Joint Urban 2003 Field Campaign

被引：18

作者：

Nelson, Matthew A. ^{[1
]}

Pardyjak, Eric R. ^{[2
]}

Klein, Petra ^{[3
]}

机构：

[1] Los Alamos Natl Lab, Grp D 3, Los Alamos, NM 87545 USA

[2] Univ Utah, Dept Mech Engn, Salt Lake City, UT 84112 USA

[3] Univ Oklahoma, Sch Meteorol, Norman, OK 73072 USA

来源：

BOUNDARY-LAYER METEOROLOGY | 2011年 / 140卷 / 01期

关键词：

Momentum budget; Street canyon; Turbulent kinetic energy budget; Urban turbulence; ANEMOMETER (CO)SINE RESPONSE; SONIC ANEMOMETER; FLUX MEASUREMENT; WIND-FIELD; FLOW; TEMPERATURE; STATISTICS; ROUGHNESS; STABILITY; SPECTRA;

D O I：

10.1007/s10546-011-9610-8

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

Very few attempts have so far been made to quantify the momentum and turbulent kinetic energy (TKE) budgets within real urban canopies. In this study, sonic anemometer data obtained during the Joint Urban 2003 field campaign in Oklahoma City, U.S.A. were used for calculating the momentum and TKE budgets within a real-world urban street canyon. Sonic anemometers were deployed on multiple towers in the lower half of the canyon. Gradients in all three principal directions were included in the analyses. The storage and buoyancy terms were found to have negligible contributions to both the momentum and TKE budgets. The momentum budgets were generally found to be more complex than a simple balance of two physical processes. The horizontal terms were found to have significant and sometimes dominant contributions to the momentum and TKE budgets.

引用

页码：143 / 162

页数：20