静止气象卫星遥感探测华北平原秋季大雾研究

doi:10.11873/j.issn.1004-0323.2011.2.186

閬ユ劅鎶�鏈笌搴旂敤鈥衡�� 2011, Vol. 26 鈥衡�� Issue (2): 186-195.DOI: 10.11873/j.issn.1004-0323.2011.2.186

鈥� 鐮旂┒涓庡簲鐢� 鈥� 涓婁竴绡� 涓嬩竴绡�

闈欐姘旇薄鍗槦閬ユ劅鎺㈡祴鍗庡寳骞冲師绉嬪澶ч浘鐮旂┒

鏉庡啗^1,2,闊╁織鍒�¹,闄堟椽婊�¹,璧靛浜�³,鍚村畯璁�⁴

(1.涓浗绉戝闄㈠ぇ姘旂墿鐞嗙爺绌舵墍涓眰澶ф皵涓庡叏鐞冪幆澧冩帰娴嬪疄楠屽,鍖椾含100029锛涱��
2.涓浗绉戝闄㈢爺绌剁敓闄�,鍖椾含100049锛�3.鍖椾含搴旂敤姘旇薄鐮旂┒鎵�,鍖椾含100029锛涱��
4.鍖椾含甯傛皵璞″眬,鍖椾含100089)

鏀剁鏃ユ湡:2010-10-27 淇洖鏃ユ湡:2011-02-22 鍑虹増鏃ユ湡:2011-04-20 鍙戝竷鏃ユ湡:2011-07-25
浣滆�呯畝浠�:鏉庡啗(1978-),鐢�,鍐呰挋鍙ゆ墡鍏板悲浜�,鍔╃悊宸ョ▼甯�,涓昏浠庝簨澶ф皵杈愬皠涓庡ぇ姘旈仴鎰熺爺绌躲�侲mail:lijun_ljr@mail.iap.ac.cn銆�
鍩洪噾璧勫姪:
鍥藉鑷劧绉戝閲嶇偣鍩洪噾椤圭洰(40830102),鍥藉973璁″垝椤圭洰“澶氬昂搴︽皵婧惰兌缁煎悎瑙傛祴鍜屾椂绌哄垎甯冭寰嬬爺绌�”(2010CB950804)銆�

Detection of Heavy Fog Events over North China Plain by Using the Geostationary Satellite Data

LI Jun^1,,HAN Zhi-gang¹,CHEN Hong-bin¹,ZHAO Zeng-liang³,WU Hong-yi⁴

(1.LAGEO,Institute of Atmospheric Physics Chinese Academy of Sciences,Beijing 100029,China;顎�
2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China;顎�
3.Beijing Institute of Applied Meteorology,Beijing 100029,China;顎�
4.Beijing Meteorological Bureau,Beijing 100089,China)

Received:2010-10-27 Revised:2011-02-22 Online:2011-04-20 Published:2011-07-25

鎽樿/Abstract

鎽樿锛�

绉嬪鏄崕鍖楀钩鍘熷ぇ闆惧鍙戝鑺�,杩戝勾鏉ュぇ闆炬垚涓轰富瑕佺殑鐏惧鎬уぉ姘斾箣涓�,瀹炴椂鐩戞祴淇℃伅瀵逛簬浜轰滑瀹夋帓鐢熶骇鐢熸椿鍗佸垎鏈夊埄銆備娇鐢ㄤ富鎴愬垎鍒嗘瀽鏂规硶瀵�2006骞�11鏈�19鏃�11鈭�00鍜�20鏃ヮ��05鈭�00顎夊崕鍖楀钩鍘熷嚭鐜板ぇ闆惧ぉ姘斾袱涓椂娆＄殑闈欐鍗槦MTSAT\|1R璧勬枡杩涜浜嗗鐞嗗垎鏋�,缁撴灉琛ㄦ槑璇ユ柟娉曞彲浠ョ獊鍑洪浘鍖轰笌鍏朵粬鍖哄煙鐨勫樊寮�,妫�娴嬪埌澶ч浘鐨勫瓨鍦ㄣ�傚湪姝ゅ熀纭�涓�,瀵�2006骞�11鏈堝拰2007骞�10鏈堝嚭鐜板湪鍗庡寳骞冲師鐨勪袱娆″ぇ闆惧ぉ姘旇繃绋嬭繘琛屽ぇ闆句俊鎭彁鍙�,骞跺澶ч浘妫�娴嬮槇鍊艰繘琛屼簡鏁忔劅鎬у垎鏋�,閫夊彇鍚堥�傜殑妫�娴嬮槇鍊笺�傚埄鐢ㄥ熀浜庝富鎴愬垎鍒嗘瀽鐨勬敼杩涢仴鎰熸柟娉曞2008骞�10鏈�16鏃11鏈�30鏃ョ殑MTSAT\|1R璧勬枡杩涜浜嗗ぇ闆炬娴嬫壒閲忓鐞�,骞跺皢澶ч浘鎺㈡祴缁撴灉涓庡湴闈㈠父瑙勮娴嬭祫鏂欒繘琛屼簡瀵规瘮楠岃瘉銆傜粨鏋滆〃鏄庢敼杩涙柟娉曞彲浠ユ帰娴嬪埌闆惧尯鐨勫奖鍝嶈寖鍥�,妫�娴嬮槇鍊奸�氱敤鎬уソ,鎺㈡祴澶ч浘鐨勫噯纭巼杈冮珮銆備袱绉嶆柟娉曞潎鍙樇澶滆繛缁洃娴嬪ぇ闆剧殑鐢熸垚銆佸彂灞曞拰娑堟暎,鏄剧ず浜嗚繖涓ょ鏂规硶鍦ㄥぇ闆惧疄鏃剁洃娴嬫柟闈㈣緝浼犵粺鍦伴潰瑙傛祴璧勬枡鍏锋湁鏃堕棿鍒嗚鲸鐜囬珮銆佸瑙傚拰鍑嗙‘绛変紭鐐广��

鍏抽敭璇�: 绉嬪澶ч浘, 鍗槦閬ユ劅, 涓绘垚鍒嗗垎鏋�

Abstract:

In North China region,the autumn is a prevalent season of heavy fog,which has become a major severe weather in recent years.Real\|time monitoring of fog is essential for transport industry and public activities.Two heavy fog events occurring in North China Plain at 11鈭�00 LST on 19 November 2006 and at 05鈭�00 LST on 20 November 2006 were detected by employing principal component image transformation of MTSAT\|1R Imagery.The results show that the principle component analysis technique can enhance the difference between fog area and other regions and detect heavy fog.Based on the principle component analysis,extract fog information by using threshold detection,the sensitivity analysis of fog detection threshold was done and selected the appropriate detection threshold.MTSAT\|1R data from 16 October to 30 November 2008 were processed by using threshold detection method with batch process,and the results were compared with conventional ground\|based meteorological observation data.The results show that the improved remote sensing method based on PCA can detect areas of fog affected,the detection threshold is of good stability,accuracy rate of detection fog is high and the method is objective.Both methods can effectively and consecutively detect development and dissipation of fog events and the real time detection of heavy fog by using these two techniques have much superiority over traditional surface detection in temporal\|resolution,objectivity and veracity.

Key words: Heavy fog in autumn, Satellite remote sensing, Principal component analysis

涓浘鍒嗙被鍙�:

P 407
TP 79

鏉庡啗,闊╁織鍒�,闄堟椽婊�,璧靛浜�,鍚村畯璁�. 闈欐姘旇薄鍗槦閬ユ劅鎺㈡祴鍗庡寳骞冲師绉嬪澶ч浘鐮旂┒[J]. 閬ユ劅鎶�鏈笌搴旂敤, 2011, 26(2): 186-195.

LI Jun,,HAN Zhi-gang,CHEN Hong-bin,ZHAO Zeng-liang,WU Hong-yi. Detection of Heavy Fog Events over North China Plain by Using the Geostationary Satellite Data[J]. Remote Sensing Technology and Application, 2011, 26(2): 186-195.

鍙傝�冩枃鐚�

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闈欐姘旇薄鍗槦閬ユ劅鎺㈡祴鍗庡寳骞冲師绉嬪澶ч浘鐮旂┒

Detection of Heavy Fog Events over North China Plain by Using the Geostationary Satellite Data

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