利用衛(wèi)星微波觀測亮溫監(jiān)測東北冷渦移動路徑

doi:10.12306/2024jms.0045

首頁 > 過刊瀏覽>2024年第44卷第6期 >1122-1133. DOI:10.12306/2024jms.0045

利用衛(wèi)星微波觀測亮溫監(jiān)測東北冷渦移動路徑
DOI:
                        10.12306/2024jms.0045
                    
CSTR:
                        
                    
作者:
                        
                        
                    
作者單位:
作者簡介:
通訊作者:
中圖分類號:P407.7
基金項目:國家重點研發(fā)計劃資助項目(2018YFC1506702)

A comparative study on the movement paths of Northeast China cold vortex between satellite microwave observations and all-sky simulations

Author:

Affiliation:

Fund Project:

摘要

圖/表

訪問統(tǒng)計

參考文獻

相似文獻

引證文獻

資源附件

文章評論

摘要:

再分析資料已被廣泛應(yīng)用于東北冷渦的研究。這些冷渦常發(fā)生在春末夏初,引起低溫和雷暴。本文利用MetOp-B先進微波溫度探測儀(Advanced Microwave Sounding Unit-A,AMSU-A)的對流層高層通道亮溫觀測追蹤2020年5—7月4個東北冷渦的移動路徑。權(quán)重函數(shù)峰值分別位于250和200 hPa高度的AMSU-A通道7和8的亮度觀測具有明顯的東北冷渦暖核結(jié)構(gòu),其時間演變反映平流層空氣的持續(xù)向南和向下入侵。因此,東北冷渦的移動路徑可以根據(jù)AMSU-A通道7和8的亮溫觀測暖核中心位置來確定。雖然再分析資料同化了無線電探空資料以及AMSU-A等其他衛(wèi)星觀測,但依據(jù)AMSU-A 單個儀器的觀測亮溫得到的4個東北冷渦的移動路徑與實況分析和ERA5 全天空模擬亮溫得到的一致。4個東北冷渦都起源于西伯利亞中部,向東南移動至不同緯度后再轉(zhuǎn)向東、東南或東北移動。MetOp-B是一顆上午星,每日提供兩次全球觀測。若與晨昏星(FY-3E)和下午星(FY-3D或NOAA-20)構(gòu)成三軌星座,則可實現(xiàn)對東北冷渦的移動路徑每天6次的實時觀測。

Abstract:

Reanalysis data had extensively employed for investigating of Northeast China Cold Vortices (NCCVs), which frequently occur in late spring and early summer and cause cold temperature and thunderstorms. In this study, the MetOp-B Advanced Microwave Sounding Unit-A (AMSU-A) brightness temperature observations in the upper troposphere were used to track the movement paths of NCCV. Four NCCV cases that occurred in May, June and July 2020 were selected. The brightness temperature observations at AMSU-A channels 7 and 8, whose peak weighting function are located near 250 and 200 hPa vertical levels, respectively, have clear warm core structures, whose temporal evolutions followed a continuing southward and downward intrusion of stratospheric air of NCCVs. The movement paths of NCCV can thus be determined by the center positions of warm cores of brightness temperature observations at AMSU-A channels 7 and 8. The moving paths of the four NCCVs compared favorably with the ERA5 all-sky simulations and operational analysis, which had drawn high-vertical-resolution radiosondes and satellite observations including AMSU-A. Originating in central Siberia, the movement paths of four NCCVs headed southeastward, reaching different latitudes before heading eastward, southeastward or northeastward. MetOp-B is a morning orbit satellite which provides global observations twice daily. Together with microwave temperature-sounding instruments onboard an early-morning (FY-3E) and an afternoon orbit (FY-3D or NOAA-20) satellites, an NCCV moving path can be monitored six times daily with a three-orbit constellation in real time.

參考文獻

相似文獻

引證文獻

引用本文

毛嚴,鄒曉蕾,董慧杰.利用衛(wèi)星微波觀測亮溫監(jiān)測東北冷渦移動路徑.氣象科學(xué),2024,44(6):1122-1133 MAO Yan, ZOU Xiaolei, DONG Huijie. A comparative study on the movement paths of Northeast China cold vortex between satellite microwave observations and all-sky simulations. Journal of the Meteorological Sciences,2024,44(6):1122-1133

復(fù)制

文章指標

點擊次數(shù):
下載次數(shù):
HTML閱讀次數(shù):
引用次數(shù):

歷史

收稿日期:2024-05-18
最后修改日期:2024-11-20
錄用日期:
在線發(fā)布日期: 2025-01-08
出版日期:

文章二維碼

您是第位訪問者
氣象科學(xué) ® 2026 版權(quán)所有
技術(shù)支持：北京勤云科技發(fā)展有限公司

抽查舔水白紧大视频,冲喜娘子超甜哒激情五月,亚洲黄色图片偷拍网站,亚洲三级黄片免费播放,91在线观看喷潮红桃,日韩精品在线观看一区二区,久久久久久久久久久久黄色片子,日产精品99久久久久久久久,欧洲亚洲另类图片小说

引用本文

分享

相關(guān)視頻

文章指標

歷史

文章二維碼

抽查舔水白紧大视频,冲喜娘子超甜哒 激情五月,亚洲黄色图片偷拍网站,亚洲三级黄片免费播放,91在线观看喷潮红桃,日韩精品在线观看一区二区,久久久久久久久久久久黄色片子,日产精品99久久久久久久久,欧洲亚洲另类图片小说

引用本文

分享

相關(guān)視頻

文章指標

歷史

文章二維碼

抽查舔水白紧大视频,冲喜娘子超甜哒激情五月,亚洲黄色图片偷拍网站,亚洲三级黄片免费播放,91在线观看喷潮红桃,日韩精品在线观看一区二区,久久久久久久久久久久黄色片子,日产精品99久久久久久久久,欧洲亚洲另类图片小说