WU Yao,XIAO Tiangui,ZHAO Ping,et al.Temporal and Spatial Distribution of Midsummer Precipitation in Chengdu from 2008 to 2020[J].Research of Soil and Water Conservation,2022,29(05):343-349.
2008-2020年成都地区盛夏降水时空分布特征
- Title:
- Temporal and Spatial Distribution of Midsummer Precipitation in Chengdu from 2008 to 2020
- 文章编号:
- 1005-3409(2022)05-0343-07
- 分类号:
- P466
- 文献标志码:
- A
- 摘要:
- 为获得成都盛夏降水的时空分布特征,通过2008—2020年中国自动站与CMORPH降水产品融合的逐时降水资料,分析了成都地区盛夏7月、8月降水的时空分布特征。结果表明:(1)成都地区盛夏平均降水量总体呈西高东低的分布趋势。(2)成都盛夏以夜间降水为主,雨带明显向东传递,降水峰值主要出现在3:00—4:00,并且中东部在午后还存在一个次峰值。(3)小时强降水的降水量和降水频次的贡献率在空间上分布基本一致,最大值区均位于大邑和邛崃的交界处,低值区出现在西部高海拔地区和简阳地区。(4)2013年、2018年、2020年小时强降水的次数明显偏多,这是由于副高异常偏西偏北导致。(5)成都西部地区小时强降水的频次明显多于其他地区,但极值却偏小,成都地区极端强降水事件更容易出现在3:00左右。综上,通过对成都盛夏降水的研究,为该地区降水监测、城市防洪和防灾减灾等提供决策依据。
- Abstract:
- In order to analyze the spatial and temporal distribution characteristics of summer precipitation in Chengdu, based on hourly precipitation data from 2008 to 2020, the spatial and temporal distribution characteristics of precipitation of July and August in mid-summer in Chengdu were analyzed. The results show that:(1)the average summer precipitation in Chengdu presented a general trend of high in the west and low in the east;(2)in mid-summer of Chengdu, the precipitation mainly occurred at night, and the rain belt obviously transferred to the east; the precipitation peak mainly occurred from March to April, and there was a secondary peak in the afternoon in the central and eastern parts;(3)the contribution rates of precipitation and precipitation frequency of hourly heavy precipitation were consistent in spatial distribution base, the maximum values were observed in the junction of Dayi and Qionglai, and the low values were found in the high-altitude area of western China and Jianyang area;(4)the numbers of hourly heavy precipitation in 2013, 2018 and 2020 were significantly more than those in 2013, 2018 and 2020, which was caused by the abnormal west-north subtropical high;(5)the frequency of hourly heavy precipitation in western Chengdu was significantly higher than that in other areas, but the extreme value was smaller; the extreme heavy precipitation events in Chengdu were more likely to occur around 3:00. In summary, through the study of Chengdu summer precipitation, it provides decision-making basis for precipitation monitoring, urban flood control and disaster prevention and mitigation.
参考文献/References:
[1] 陈隆勋,周秀骥,李维亮,等.中国近80年来气候变化特征及其形成机制[J].气象学报,2004(5):634-646.
[2] 左洪超,吕世华,胡隐樵.中国近50年气温及降水量的变化趋势分析[J].高原气象,2004(2):238-244.
[3] 王颖,施能,顾骏强,等.中国雨日的气候变化[J].大气科学,2006(1):162-170.
[4] Yu R, Xu Y, Zhou T, et al. Relation between rainfall duration and diurnal variation in the warm season precipitation over central eastern China[J]. Geophysical Research Letters, 2007,34(13),https://doi.org/10.1029/2007GL030315.
[5] Yu R, Zhou T, Xiong A, et al. Diurnal variations of summer precipitation over contiguous China[J]. Geophysical Research Letters, 2007,34(1),https://doi.org/10.1029/2006GL028129.
[6] Huang H L, Wang C C, Chen G T J, et al. The role of diurnal solenoidal circulation on propagating rainfall episodes near the eastern Tibetan Plateau[J]. Monthly Weather Review, 2010,138(7):2975-2989.
[7] 胡迪,李跃清.青藏高原东侧四川地区夜雨时空变化特征[J].大气科学,2015,39(1):161-179.
[8] 陈炯,郑永光,张小玲,等.中国暖季短时强降水分布和日变化特征及其与中尺度对流系统日变化关系分析[J].气象学报,2013,71(3):367-382.
[9] 李强,邓承之,张勇,等.1980—2012年5—9月川渝盆地小时强降水特征研究[J].气象,2017,43(9):1073-1083.
[10] 毛冬艳,曹艳察,朱文剑,等.西南地区短时强降水的气候特征分析[J].气象,2018,44(8):1042-1050.
[11] 周秋雪,康岚,蒋兴文,等.四川盆地边缘山地强降水与海拔的关系[J].气象,2019,45(6):811-819.
[12] 宇婧婧,沈艳,潘旸,等.概率密度匹配法对中国区域卫星降水资料的改进[J].应用气象学报,2013,24(5):544-553.
[13] 沈艳,潘旸,宇婧婧,等.中国区域小时降水量融合产品的质量评估[J].大气科学学报,2013,36(1):37-46.
[14] 潘旸,沈艳,宇婧婧,等.基于最优插值方法分析的中国区域地面观测与卫星反演逐时降水融合试验[J].气象学报,2012,70(6):1381-1389.
[15] Shen Y, Zhao P, Pan Y, et al. A high spatiotemporal gauge-satellite merged precipitation analysis over China[J]. Journal of Geophysical Research: Atmospheres, 2014,119(6):3063-3075.
[16] 李昕翼,肖国杰,白爱娟,等.成都地区降水时空分布变化[J].气象科技,2011,39(4):417-422.
[17] 赵衍斌,肖天贵.四川地区强降水的时空分布特征[J].成都信息工程大学学报,2016,31(1):94-101.
[18] 周秋雪,刘莹,冯良敏,等.2008—2012年四川强小时雨强的时空分布特征[J].高原气象,2015,34(5):1261-1269.
[19] 龚志强,王艳娇,王遵娅,等.2013年夏季气候异常特征及成因简析[J].气象,2014,40(1):119-125.
[20] 何光碧,师锐,曾波.2018年7月四川盆地降水异常特征及成因分析[J].气象与环境学报,2020,36(6):21-30.
相似文献/References:
[1]雅 茹,丽 娜,银 山,等.1960-2015年内蒙古极端气候事件的时空变化特征[J].水土保持研究,2020,27(03):106.
YA Ru,LI Na,YIN Shan,et al.Characteristics of Temporal and Spatial Variation of Extreme Climate Events in Inner Mongolia During the Period 1960-2015[J].Research of Soil and Water Conservation,2020,27(05):106.
[2]付扬军,师学义,和 娟.汾河流域景观格局脆弱性时空分异特征[J].水土保持研究,2020,27(03):197.
FU Yangjun,SHI Xueyi,HE Juan.Characteristics of Spatial and Temporal Differentiation of Landscape Pattern Vulnerability in Fenhe River Basin[J].Research of Soil and Water Conservation,2020,27(05):197.
[3]姜 萍,潘新民,曾雪莹.中国不同农业区气温和降水时空演变格局分析[J].水土保持研究,2020,27(04):270.
JIANG Ping,PAN Xinmin,ZENG Xueying.Temporal and Spatial Variation of Temperature and Precipitation in Each Agricultural Sub-region of China[J].Research of Soil and Water Conservation,2020,27(05):270.
[4]郑金涛,彭 涛,董晓华,等.三峡库区气象干旱演变特征及致灾因子危险性评价[J].水土保持研究,2020,27(05):213.
ZHENG Jintao,PENG Tao,DONG Xiaohua,et al.Evolution Characteristics of Meteorological Drought and Assessment of Risk of Disaster Factors in the Three Gorges Reservoir Area[J].Research of Soil and Water Conservation,2020,27(05):213.
[5]杨星星,杨云川,田 忆,等.广西降雨亏缺型骤旱的演变过程及时空分布特征[J].水土保持研究,2020,27(02):149.
YANG Xingxing,YANG Yunchuan,TIAN Yi,et al.Characteristics of Spatiotemporal Distribution of Rainfall-Deficient Flash Drought in Guangxi[J].Research of Soil and Water Conservation,2020,27(05):149.
[6]鲁向晖,张海娜,胡羊羊.赣江流域1966-2015年降水量多尺度时空变化特征分析[J].水土保持研究,2021,28(02):168.
LU Xianghui,ZHANG Haina,HU Yangyang.Spatiotemporal Variation Characteristics of Precipitation at Multi-scale in Ganjiang River Basin from 1966 to 2015[J].Research of Soil and Water Conservation,2021,28(05):168.
[7]张 鹏,张圣微,徐 冉,等.基于遥感的科尔沁沙地蒸散发时空动态[J].水土保持研究,2021,28(03):399.
ZHANG Peng,ZHANG Shengwei,XU Ran,et al.Spatiotemporal Dynamics of Evapotranspiration in Horqin Sandy Land Based on Remote Sensing[J].Research of Soil and Water Conservation,2021,28(05):399.
[8]王雅倩,岳永杰,乌云珠拉,等.基于SWAT模型的根河流域蒸散量时空分布特征[J].水土保持研究,2022,29(01):256.
WANG Yaqian,YUE Yongjie,WU Yunzhula,et al.Temporal and Spatial Distribution Characteristics of Evapotranspiration in Genhe River Basin Based on Soil and Water Assessment Tool Model[J].Research of Soil and Water Conservation,2022,29(05):256.
[9]刘声洪,刘惠英,罗萍,等.赣江上游平江流域近30年不同量级降雨时空分布特征[J].水土保持研究,2022,29(03):106.
LIU Shenghong,LIU Huiying,LUO Ping,et al.Spatial and Temporal Distribution Characteristics of Rainfall of Different Magnitudes in Pingjiang Basin of Upper Ganjiang River in Recent 30 Years[J].Research of Soil and Water Conservation,2022,29(05):106.
[10]徐 慧,陈金华,黄 进,等.基于空间计量分析安徽省冬小麦灾损风险的时空分布[J].水土保持研究,2022,29(03):383.
XU Hui,CHEN Jinhua,HUANG Jin,et al.Spatiotemporal Distribution of Risk in Yield Losses for Winter Wheat in Anhui Province Based on Spatial Econometric Analysis[J].Research of Soil and Water Conservation,2022,29(05):383.
备注/Memo
收稿日期:2021-06-23 修回日期:2021-08-04
资助项目:第二次青藏高原综合科学考察研究项目(2019QZKK010408); 中国气象局创新发展专项(CXFZ2021Z010); 第31届世界大学生运动会成都市赛事强天气短临预报系统项目(2020H467)
第一作者:吴尧(1997—),男,安徽马鞍山人,硕士研究生,从事天气动力学研究。E-mail:707643823@qq.com
通信作者:肖天贵(1962—),男,四川成都人,教授,从事天气动力学研究。E-mail:xiaotiangui@cuit.edu.cn