PDF Download

[1]YOU Man,HE Zhonghua,ZHANG Lang,et al.Spatiotemporal Variation Characteristics of Meteorological Drought in Guizhou Province Based on Relative Humidity Index[J].Research of Soil and Water Conservation,2022,29(04):255-262+269.

Copy

Spatiotemporal Variation Characteristics of Meteorological Drought in Guizhou Province Based on Relative Humidity Index

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 29 Number of periods: 2022 04 Page number: 255-262+269 Column: Public date: 2022-06-20

Title:: Spatiotemporal Variation Characteristics of Meteorological Drought in Guizhou Province Based on Relative Humidity Index

Author(s):: YOU Man¹, HE Zhonghua^1,2,3, ZHANG Lang¹, YANG Mingke¹, PI Guining¹; (1.Shcool of Geographic and Environmental Sciences, Guizhou Normal University, Guiyang 550001, China; 2.National Karst Rocky Desertification Prevention Engineering Technology Research Center, Guizhou Normal University, Guiyang 550001, China; 3.Guizhou Key Laboratory of Remote Sensing Application of Mountain Resources and Environment, Guiyang 550001, China)

Keywords:: relative humidity index; drought weather; spatiotemporal characteristics; Guizhou Province

CLC:: P42

DOI:: -

Abstract:: In order to explore the spatial and temporal distribution characteristics of drought frequency, tensity and in different regions of Guizhou Province, based on the daily meteorological data of 17 meteorological stations in Guizhou Province from 1981 to 2019, the joint and conditional probability characteristics of drought intensity and drought frequency were discussed to reveal the spatial and temporal distribution of meteorological drought in Guizhou Province by using the relative humidity index, and combined with a Couple two-dimensional distribution function. The results show that:(1)from 1981 to 2019, the meteorological drought intensity in Guizhou Province showed a trend of weakening and increasing, and the drought frequency showed the increasing trend;(2)the spatial distribution of annual and seasonal drought intensity in Guizhou Province was different; at the seasonal scale, the winter drought intensity was the strongest, followed by autumn drought and summer drought, and the spring drought intensity was weak;(3)the spatial distribution pattern of drought frequency in year, winter and spring was higher in the west and lower in the east, and the distribution was more consistent in summer and autumn; at the seasonal scale, the drought frequency was the highest in winter, followed by spring and autumn, and the lowest in summer;(4)among the combined characteristics of drought, the combined characteristic values of the seasonal scale decreased in the order: spring>winter>autumn>summer; under the condition of drought intensity in each season, the conditional probability characteristic value of drought frequency in each season deceased in the order: summer>autumn>winter>spring. In conclusion, the intensity of meteorological drought in Guizhou Province gradually decreased, drought occurred frequently, spring drought was high frequency and high intensity, summer drought was low intensity and high frequency.

References:: [1] Buttafuoco G, Caloiero T, Coscarelli R. Analyses of drought events in Calabria(Southern Italy)using standardized precipitation index[J]. Water Resources Management, 2015,29(2): 557-573.
[2] Wilhite D A, Glantz M H. Understanding the drought phenomenon the role of definitions[J]. Water International, 1985,10(3):111-120.
[3] 徐羽,吴艳飞,徐刚,等.基于相对湿润指数的重庆市气象干旱时空分布特征[J].西南大学学报:自然科学版,2016,38(4):96-103.
[4] Dracup J A, Lee K S, Paulson Jr E G. On the definition of droughts[J]. Water Resources Research, 1980,16(2):297-302.
[5] 刘晓云,李栋梁,王劲松.1961—2009年中国区域干旱状况的时空变化特征[J].中国沙漠,2012,32(2):473-483.
[6] 曹兴,万瑜,崔玉玲,等.中天山北坡近30年相对湿润指数变化趋势分析[J].干旱地区农业研究,2013,31(3):244-251.
[7] 曹二佳,薛羽,李红瑛,等.基于相对湿润指数的蒙中农牧交错带作物生长季干旱时空分析:以乌兰察布市为例[J].中国农村水利水电,2019(11):165-171.
[8] 祁嘉郁,巴特尔·巴克.基于相对湿润度指数的北疆气象干旱时空特征[J].水土保持研究,2021,28(3):223-228.
[9] 王明田,王翔,黄晚华,等.基于相对湿润度指数的西南地区季节性干旱时空分布特征[J].农业工程学报,2012,28(19):85-92,295.
[10] 张青雯,崔宁博,赵禄山,等.基于相对湿润指数的云南省季节性干旱变化特征[J].干旱地区农业研究,2020,38(4):278-284.
[11] 张克新,王娟娟,彭娇婷,等.贵州省降水集散程度时空变化及其影响因素分析[J].贵州师范大学学报:自然科学版,2020,38(2):10-18.
[12] 李月,白晓永,周运超,等.基于SPEI的贵州省近60年干旱时空特征分析[J].中国水土保持,2015(7):57-60.
[13] 贺中华,陈晓翔,梁虹,等.基于土壤系统结构的喀斯特流域水文干旱分析:以贵州省为例[J].自然资源学报,2013,28(10):1731-1742.
[14] 毛春艳,戴丽,杨广斌,等.1960—2016年贵州喀斯特山区干旱时空动态分析[J].水资源与水工程学报,2021,32(3):64-72,79.
[15] 申双和,张方敏,盛琼.1975—2004年中国湿润指数时空变化特征[J].农业工程学报,2009,25(1):11-15.
[16] 张强,邹旭凯,肖风劲,等.气象干旱等级GB/T20481—2006[S].北京:中国标准出版社,2006.
[17] 柏庆顺,颜鹏程,蔡迪花,等.近56 a中国西北地区不同强度干旱的年代际变化特征[J].干旱气象,2019,37(5):722-728.
[18] He Z, Liang H, Yang C, et al. Temporal-spatial evolution of the hydrologic drought characteristics of the karst drainage basins in South China[J]. International Journal of Applied Earth Observation and Geoinformation, 2018, 64: 22-30.
[19] 任璐.基于Copula的汾河上游水文干旱频率的多时间尺度分析[D].太原:太原理工大学,2016.
[20] 胡义明,罗序义,梁忠民,等.基于藤Copula多维联合分布的CMIP5多模式降雨综合方法研究[J].中国农村水利水电,2021(4):10-15.
[21] 慎东方,商崇菊,方小宇,等.贵州省干旱历时和干旱烈度的时空特征分析[J].干旱区资源与环境,2016,30(7):138-143.
[22] 罗文芳.青藏高原积雪异常与贵州东、西部旱、寒灾害关系的初步分析[J].高原气象,2001,20(3):340-344.

Similar References:

Memo

Last Update: 2022-06-20