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1.
6月份,全国平均降水量比常年同期偏多,华南、江南部分地区发生严重洪涝;平均气温较常年同期异常偏高,为1951年以来历史同期的最大值。华北、西北东部、黄淮西部及江淮等地出现夏旱,华北、黄淮等地出现持续高温酷热天气;局地强对流天气发生频繁。 相似文献
2.
2019年7月大气环流和天气分析 总被引：1，自引：1，他引：0
2019年7月北半球的大气环流主要特征表现为,极涡呈偶极型分布,较常年同期偏强;欧洲高空冷涡异常偏强,中上旬西太平洋副热带高压位置偏南,下旬北抬。7月全国平均降水量为126.3 mm,较历史常年同期偏多4.7%,江南大部以及西南地区较历史同期显著偏多1倍以上,黄淮、江淮地区降水较常年同期偏少5成以上;全国平均气温为22.1℃,较历史同期略偏高。平均高温日数多于常年同期（4.3 d）,达到了5.7 d,华北南部、黄淮、江淮以及南疆等地高温日数显著偏多,山西、辽宁、新疆、广东等地共61站发生极端高温事件。本月内有7次区域性暴雨天气过程,主要出现在我国南方地区,多站出现极端日降水量。共有4个台风生成,接近历史同期水平,只有1个台风登陆我国,较历史同期偏少。 相似文献
3.
华南东北暴雨成灾华北黄淮干旱炎热--2005年6月-- 总被引：1，自引：0，他引：1
6月全国平均降水量比常年同期偏多,平均气温较常年同期异常偏高。华南、江南部分地区发生严重洪涝;华北、西北东部、黄淮西部及江淮等地出现夏旱;华北、黄淮等地出现持续高温酷热天气;月内江淮梅雨未能出现;局地强对流天气发生频繁;只有一个热带风暴4号纳沙生成,远海转向对我国影响不大。 相似文献
4.
1992年2月,冷空气活动偏弱,北方大部地区气温偏高,降水偏少;暖湿气流强盛,南方大部地区降水偏多;华南、西南气温偏低。 概况 2月,北方大部以及江淮、江南大部的平均气温较常年同期偏高,东北大部、华北东部、黄淮和江淮地区以及新疆北部偏高2—3℃,其中新疆西北部、内蒙古东部和辽 相似文献
5.
2014年6月大气环流和天气分析 总被引：1，自引：1，他引：0
2014年6月大气环流特征为:北半球极涡呈双极型,较常年略偏强;西太平洋副热带高压强度较常年同期偏强,南海季风爆发较常年偏晚3候。2014年6月,全国平均气温为20.5℃,较常年同期(20.0℃)偏高0.5℃,与常年相比全国大部地区气温接近常年同期或偏高。南方地区人梅开始晚,降雨量偏少,江淮地区出现空梅。江淮、黄淮、长江中下游降水偏少20%以上。全国平均降水量为100.7 mm,较常年同期(99.3 mm)略偏多1.4%。月内出现4次主要的降水过程。南方强降水天气较多,多地遭受洪涝灾害,云南干旱有所缓解,东北、华北等地多阵性降水;全国22个省(区、市)遭受风雹灾害。全国101个站发生极端高温事件。今年第7号台风海贝思在广东登陆,是今年第一个登陆我国的台风。 相似文献
6.
8月份 ,除东北地区外 ,我国北方大部降水偏少 ,气温偏高。华北、黄淮部分地区旱情发展。南方大部降水偏多 ,华南及长江流域持续降雨 ,一些地区发生暴雨洪涝灾害。月内有 6个热带气旋活动 ,2个在广东沿海登陆。1 天气概况1 1 降水8月份 ,与常年同期相比 (图 1) ,南方大部及东北东部降水偏多或接近常年 ,其中江南大部、华南北部及云南东部、黑龙江南部等地偏多 5成至 1倍 ;北方大部降水偏少 ,其中黄淮中北部、华北大部、西北地区中西部等地偏少 5成以上。上旬 ,由于受南海北部低压及 0 2 12号强热带风暴北冕登陆的影响 ,华南、江南中南部降… 相似文献
7.
2015年6月大气环流和天气分析 总被引：2，自引：2，他引：0
2015年6月大气环流特征为：北半球极涡呈双极型,较常年略偏强;西太平洋副热带高压强度接近常年同期。2015年6月,全国平均气温为20.3℃,较常年同期（20.0℃）偏高0.3℃,北方（南方）地区气温总体较常年同期偏低（高）。全国平均降水量为104.8 mm,较常年同期（99.3 mm）略偏多5.5%。月内出现8次主要的降水过程。江淮、江南北部等地强降水天气较多,多地遭受洪涝灾害,云南西部干旱发展,海南干旱有所缓解,东北地区等地多阵性降水;全国21个省（区、市）遭受风雹灾害。全国64个站发生极端高温事件。今年第8号台风鲸鱼在广东登陆,是今年第一个登陆我国的台风。 相似文献
8.
4月，全国平均气温为11．1℃，比常年同期偏高0．912。月内气温起伏变化较大，上旬，我国中东部地区气温较常年同期偏低或接近常年；中旬，全国大部分地区气温较常年同期偏高；下旬，南方和西北中东部地区气温偏低，北方大部分地区气温偏高或接近常年同期。全国平均月降水量为41．2mm，较常年同期略偏少。与常年同期相比，华北大部、黄淮、西北东部及南疆等地月降水量偏少，西北中北部及云南、西藏大部等地降水偏多。 相似文献
9.
9月 ,我国西部、华北、黄淮北部等地降雨偏多 ,部分地区还出现了罕见的低温阴雨天气。而南方降水则偏少 ,江南东部及闽北地区出现旱情。 9月平均气温 ,全国大部地区接近常年或略偏高 ,江南东部和闽北地区偏高 2℃以上。月内共有 3个热带气旋活动 ,其中一个登陆广东。1 天气概况本月降水大体呈北多南少趋势 ,西北地区西部和中部、华北北部等地降水明显偏多。就月降水量而言 ,青海东部、陕南、华北北部、黄淮、江淮东部、华南南部沿海有 1 0 0～30 0mm ,其中 ,广东南部达 30 0～ 4 0 0mm ;东北、西北北部和东南部、西南大部、华北中部和南部… 相似文献
10.
2011年6月大气环流和天气分析 总被引：1，自引：0，他引：1
2011年6月环流特征如下：北半球高纬度地区为单一极涡,强度较常年同期偏弱,西太平洋副热带高压较常年偏强,欧亚中高纬环流较平直,多短波槽活动,季风槽较常年略偏弱,槽前西南气流明显。6月,全国平均降水量为102.8mm,比常年同期（97.1mm）偏多5.9%。全国平均气温为20.5℃,比常年同期（19.5℃）偏高1.0℃。月内,我国主要天气气候事件有：长江中下游、华南、西北地区东南部、川渝地区、华北、黄淮、东北南部等地发生暴雨洪涝;有3个热带气旋生成并登陆我国;黄淮等地出现极端高温天气;西北东部、华北、黄淮、江淮北部等地上中旬气象干旱持续发展,下旬干旱缓解;全国23个省（市、区）遭受风雹灾害。 相似文献
11.
Using the International Comprehensive Ocean-Atmosphere Data Set(ICOADS) and ERA-Interim data, spatial distributions of air-sea temperature difference(ASTD) in the South China Sea(SCS) for the past 35 years are compared,and variations of spatial and temporal distributions of ASTD in this region are addressed using empirical orthogonal function decomposition and wavelet analysis methods. The results indicate that both ICOADS and ERA-Interim data can reflect actual distribution characteristics of ASTD in the SCS, but values of ASTD from the ERA-Interim data are smaller than those of the ICOADS data in the same region. In addition, the ASTD characteristics from the ERA-Interim data are not obvious inshore. A seesaw-type, north-south distribution of ASTD is dominant in the SCS; i.e., a positive peak in the south is associated with a negative peak in the north in November, and a negative peak in the south is accompanied by a positive peak in the north during April and May. Interannual ASTD variations in summer or autumn are decreasing. There is a seesaw-type distribution of ASTD between Beibu Bay and most of the SCS in summer, and the center of large values is in the Nansha Islands area in autumn. The ASTD in the SCS has a strong quasi-3a oscillation period in all seasons, and a quasi-11 a period in winter and spring. The ASTD is positively correlated with the Nio3.4 index in summer and autumn but negatively correlated in spring and winter. 相似文献
12.
Fei LIU Chen XING Jinbao LI Bin WANG Jing CHAI Chaochao GAO Gang HUANG Jian LIU Deliang CHEN 《大气科学进展》2020,37(7):663-670
正The Taal Volcano in Luzon is one of the most active and dangerous volcanoes of the Philippines. A recent eruption occurred on 12 January 2020(Fig. 1a), and this volcano is still active with the occurrence of volcanic earthquakes. The eruption has become a deep concern worldwide, not only for its damage on local society, but also for potential hazardous consequences on the Earth's climate and environment. 相似文献
13.
The moving-window correlation analysis was applied to investigate the relationship between autumn Indian Ocean Dipole (IOD) events and the synchronous autumn precipitation in Huaxi region, based on the daily precipitation, sea surface temperature (SST) and atmospheric circulation data from 1960 to 2012. The correlation curves of IOD and the early modulation of Huaxi region’s autumn precipitation indicated a mutational site appeared in the 1970s. During 1960 to 1979, when the IOD was in positive phase in autumn, the circulations changed from a “W” shape to an ”M” shape at 500 hPa in Asia middle-high latitude region. Cold flux got into the Sichuan province with Northwest flow, the positive anomaly of the water vapor flux transported from Western Pacific to Huaxi region strengthened, caused precipitation increase in east Huaxi region. During 1980 to 1999, when the IOD in autumn was positive phase, the atmospheric circulation presented a “W” shape at 500 hPa, the positive anomaly of the water vapor flux transported from Bay of Bengal to Huaxi region strengthened, caused precipitation ascend in west Huaxi region. In summary, the Indian Ocean changed from cold phase to warm phase since the 1970s, caused the instability of the inter-annual relationship between the IOD and the autumn rainfall in Huaxi region. 相似文献
14.
Various features of the atmospheric environment affect the number of migratory insects, besides their initial population. However, little is known about the impact of atmospheric low-frequency oscillation(10 to 90 days) on insect migration. A case study was conducted to ascertain the influence of low-frequency atmospheric oscillation on the immigration of brown planthopper, Nilaparvata lugens(Stl), in Hunan and Jiangxi provinces. The results showed the following:(1) The number of immigrating N. lugens from April to June of 2007 through 2016 mainly exhibited a periodic oscillation of 10 to 20 days.(2) The 10-20 d low-frequency number of immigrating N. lugens was significantly correlated with a low-frequency wind field and a geopotential height field at 850 h Pa.(3) During the peak phase of immigration, southwest or south winds served as a driving force and carried N. lugens populations northward, and when in the back of the trough and the front of the ridge, the downward airflow created a favorable condition for N. lugens to land in the study area. In conclusion, the northward migration of N. lugens was influenced by a low-frequency atmospheric circulation based on the analysis of dynamics. This study was the first research connecting atmospheric low-frequency oscillation to insect migration. 相似文献
15.
The atmospheric and oceanic conditions before the onset of EP El Ni?o and CP El Ni?o in nearly 30 years are compared and analyzed by using 850 hPa wind, 20℃ isotherm depth, sea surface temperature and the Wheeler and Hendon index. The results are as follows: In the western equatorial Pacific, the occurrence of the anomalously strong westerly winds of the EP El Ni?o is earlier than that of the CP El Ni?o. Its intensity is far stronger than that of the CP El Ni?o. Two months before the El Ni?o, the anomaly westerly winds of the EP El Ni?o have extended to the eastern Pacific region, while the westerly wind anomaly of the CP El Ni?o can only extend to the west of the dateline three months before the El Ni?o and later stay there. Unlike the EP El Ni?o, the CP El Ni?o is always associated with easterly wind anomaly in the eastern equatorial Pacific before its onset. The thermocline depth anomaly of the EP El Ni?o can significantly move eastward and deepen. In addition, we also find that the evolution of thermocline is ahead of the development of the sea surface temperature for the EP El Ni?o. The strong MJO activity of the EP El Ni?o in the western and central Pacific is earlier than that of the CP El Ni?o. Measured by the standard deviation of the zonal wind square, the intensity of MJO activity of the EP El Ni?o is significantly greater than that of the CP El Ni?o before the onset of El Ni?o. 相似文献
16.
基于最新的GTAP8 (Global Trade Analysis Project）数据库,使用投入产出法,分析了2004年到2007年全球贸易变化下南北集团贸易隐含碳变化及对全球碳排放的影响。结果显示,随着发展中国家进出口规模扩张,全球贸易隐含碳流向的重心逐渐向发展中国家转移。2004年到2007年,发达国家高端设备制造业和服务业出口以及发展中国家资源、能源密集型行业及中低端制造业出口的趋势加强,该过程的生产转移导致全球碳排放增长4.15亿t,占研究时段全球贸易隐含碳增量的63%。未来发展中国家的出口隐含碳比重还将进一步提高。贸易变化带来的南北集团隐含碳流动变化对全球应对气候变化行动的影响日益突出,发达国家对此负有重要责任。 相似文献
17.
Analysis of Atmospheric Boundary Layer Height Characteristics over the Arctic Ocean Using the Aircraft and GPS Soundings 
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下载免费PDF全文 正ERRATUM to: Atmospheric and Oceanic Science Letters, 4(2011), 124-130 On page 126 of the printed edition (Issue 2, Volume 4), Fig. 2 was a wrong figure because the contact author made mistake giving the wrong one. The corrected edition has been updated on our website. The editorial office is sincerely sorry for any 相似文献
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《大气科学进展》2014,(6)
正AN Junling;see LI Ying et al.;(5),1221—1232AN Junling;see QU Yu et al.;(4),787-800AN Junling;see WANG Feng et al.;(6),1331-1342Ania POLOMSKA-HARLICK;see Jieshun ZHU et al.;(4),743-754Baek-Min KIM;see Seong-Joong KIM et al.;(4),863-878BAI Tao;see LI Gang et al.;(1),66-84BAO Qing;see YANG Jing et al.;(5),1147—1156BEI Naifang; 相似文献
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《Acta Meteorologica Sinica》2014,(6)
正Journal of Meteorological Research is an international academic journal in atmospheric sciences edited and published by Acta Meteorologica Sinica Press,sponsored by the Chinese Meteorological Society.It has been acting as a bridge of academic exchange between Chinese and foreign meteorologists and aiming at introduction of the current advancements in atmospheric sciences in China.The journal columns include Articles.Note and Correspondence,and research letters.Contributions from all over the world are welcome. 相似文献