| RETRIEVAL OF HORIZONTAL WIND PERTURBATION FIELDS FROM SIMULATED SINGLE DOPPLER RADAR OBSERVATIONS |
| |
| 引用本文： | 顾松山,I.Zawadzki,S.Laroche. RETRIEVAL OF HORIZONTAL WIND PERTURBATION FIELDS FROM SIMULATED SINGLE DOPPLER RADAR OBSERVATIONS[J]. , 1994, 0(1) |
| |
| 作者姓名： | 顾松山 I.Zawadzki S.Laroche |
| |
| 作者单位： | Nanjing Institute of Meteorology Nanjing 210044，Departement de physique，Universite du Quebec a Montreal Canada，H3P 3P8，Departement de physique，Universite du Quebec a Montreal Canada，H3P 3P8 |
| |
| 基金项目： | The study is supported by the National Natural Science Foundation of China. |
| |
| 摘 要： | The application of the single Doppler radar dataset analysis is usually confined to the assumption that the actualwind is linearly distributed or uniform locally.Following some dynamic features of convective weather,a conceptualmodel of moderate complexity is constructed,wherewith a horizontal wind perturbation field is retrieved directly fromthe single Doppler radar measurements.The numerical experiments are based on a 3-D cloud model-generatedconvective cell,whose radial velocity component is taken as the radar observations that are put into the closed equationsbased on the conceptual model to retrieve the horizontal wind perturbation field.After the initial field is properlytreated,the retrieval equation is solved in terms of the 2-D FFT technique and the sensitivity to noise is examined.Finally,contrast analysis is done of the retrieved and the cloud model output wind fields,indicating the usefulness of theapproach proposed in this paper.
|
RETRIEVAL OF HORIZONTAL WIND PERTURBATION FIELDS FROM SIMULATED SINGLE DOPPLER RADAR OBSERVATIONS |
| |
| Gu Songshan Nanjing Institute of Meteorology,Nanjing I.Zawadzki S.Laroche Departement de physique,Universite du Quebec a Montreal Canada,HP P. RETRIEVAL OF HORIZONTAL WIND PERTURBATION FIELDS FROM SIMULATED SINGLE DOPPLER RADAR OBSERVATIONS[J]. Acta Meteorologica Sinica, 1994, 0(1) |
| |
| Authors: | Gu Songshan Nanjing Institute of Meteorology Nanjing I.Zawadzki S.Laroche Departement de physique Universite du Quebec a Montreal Canada HP P |
| |
| Affiliation: | Gu Songshan Nanjing Institute of Meteorology,Nanjing 210044I.Zawadzki S.Laroche Departement de physique,Universite du Quebec a Montreal Canada,H3P 3P8 |
| |
| Abstract: | The application of the single Doppler radar dataset analysis is usually confined to the assumption that the actual wind is linearly distributed or uniform locally.Following some dynamic features of convective weather,a conceptual model of moderate complexity is constructed,wherewith a horizontal wind perturbation field is retrieved directly from the single Doppler radar measurements.The numerical experiments are based on a 3-D cloud model-generated convective cell,whose radial velocity component is taken as the radar observations that are put into the closed equations based on the conceptual model to retrieve the horizontal wind perturbation field.After the initial field is properly treated,the retrieval equation is solved in terms of the 2-D FFT technique and the sensitivity to noise is examined. Finally,contrast analysis is done of the retrieved and the cloud model output wind fields,indicating the usefulness of the approach proposed in this paper. |
| |
| Keywords: | Doppler radar FFT technique retrieval wind field |
| 本文献已被 CNKI 等数据库收录！ |
