首页> 外文会议>International Laser Radar Conference >WAVELET ANALYSIS OF 14 YEARS' AEROSOL LIDAR OBSERVATIONS OVER PUNE, INDIA
【24h】

WAVELET ANALYSIS OF 14 YEARS' AEROSOL LIDAR OBSERVATIONS OVER PUNE, INDIA

机译:14岁的小波分析14年气溶胶激光乐歌曲观测,印度浦那

获取原文

摘要

Over 700 weekly spaced vertical profiles of aerosol number density have been archived during 14-year period (October 1986 -September 2000) using a bi-static Argon ion lidar system at the Indian Institute of Tropical Meteorology (IITM), Pune (18°43′N, 73°51′E, 559 m amsl), India. The time series of monthly mean aerosol distributions in the boundary layer as well as at different altitudes have been subjected to the wavelet power spectral analysis to investigate different characteristic waves present in the data. The concurrent solar radiometric column aerosol optical depth data have also been analyzed. Both the time series exhibited 11-15 (annual) and 22-25 (quasi-biennial) months periodicities at statistically significant level, and their absolute power well matches with the Global Wavelet Spectra after smoothing, which further confirms the existence of such longer periodicities in the data. A brief description of the data series and wavelet transform analysis procedure are presented. Added, the implication of environmental parameters on the long-term trends in the lidar aerosol observations is also presented.
机译:超过700周间间隔的气溶胶数密度垂直型材已经在14年期间(1986年10月--Seeptembers 2000)中存档,在印度热带气象学研究所(IITM),浦那(18°43 'N,73°51'e,559米AMSL),印度。在边界层以及不同海拔地区的每月平均气溶胶分布的时间序列已经受到小波功率谱分析,以研究数据中存在的不同特征波。还分析了并发太阳能辐射柱气溶胶光学深度数据。时间序列展示11-15(年度)和22-25个月(准二年期)月份在统计上显着水平,它们在平滑后与全球小波光谱的绝对电力匹配,这进一步证实了这种更长的周期性在数据中。提出了对数据系列和小波变换分析程序的简要说明。还提出了,还提出了对环境参数对激光乐气溶胶观测的长期趋势的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号