Temporal variations of ventilation coefficient at a tropical Indian station using UHF wind profiler

被引：12

作者：

Krishnan, P ^{[1
]}

Kunhikrishnan, PK ^{[1
]}

机构：

[1] Vikram Sarabhai Space Ctr, Space Phys Lab, Trivandrum 695022, Kerala, India

来源：

CURRENT SCIENCE | 2004年 / 86卷 / 03期

关键词：

D O I：

暂无

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Extensive observations of the atmospheric boundary layer height and wind speed using an L-band UHF wind profiler were utilized to estimate ventilation coefficient (VC), an index of air pollution potential over Gadanki (13.5degreesN, 79.2degreesE), a tropical Indian station during the period from March 1999 to April 2000. On an average, maximum boundary-layer height was observed during pre-monsoon period with the highest value (similar to 2.3 km) in April and minimum during winter (similar to 1.4 km), with the lowest value in January. The daily, monthly and seasonal variations of VC were studied during this period. It was found that VC is high during noon hours, leading to less pollution potential during noon hours. VC is found to be low during winter period and high during monsoon period.

引用

页码：447 / 451

页数：5

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