产生青海“22·8”极端强降水的三维环流结构分析.pdfVIP

doi:10.11676/qxxb2024气象学报

产生青海“22·8”极端强降水的三维环流结构分析*

11,21,3

李泽雯

孙

溦

宇如聪

11,21,3

LI

Zewen

SUN

Wei

YU

Rucong

1.

中国气象科学研究院灾害天气国家重点实验室，北京，100081

2.

中国气象科学研究院青藏高原气象研究院，成都，610000

3.

云南大学大气科学系，昆明，650091

1.

StateKeyLaboratoryofSevereWeather，ChineseAcademyofMeteorologicalSciences，Beijing100081，China

2.

InstituteofTibetanMeteorology，ChineseAcademyofMeteorologicalSciences，Chengdu610000，China

3.

DepartmentofAtmosphericScience,YunnanUniversity,Kunming650091,China

2023-07-13收稿，2023-09-28改回.

李泽雯，孙溦，宇如聪.

2024.

产生青海“22·8”极端强降水的三维环流结构分析.

气象学报，82（1）：37-54

LiZewen，SunWei，YuRucong.2024.Analysisofthethree-dimensionalcirculationchangesduringtheAugust2022extremelyheavy

rainfalleventinQinghaiprovince,China.ActaMeteorologicaSinica，82（1）:37-54

Abstract

The

three-dimensional

circulation

structure

including

the

upper

troposphere

temperature

characteristics

is

taken

as

a

breakthrough

point

to

analyze

the

impact

of

the

evolution

of

the

three-dimensional

circulation

structure

on

the

formation

and

development

of

the

short-term

extremely

heavy

precipitation

that

caused

flood

disasters

in

Datong

county

of

Xining

city,

Qinghai

province

during

17—18

August

2022.

Hourly

rain

gauge

records,

sounding

data

and

the

ERA5

reanalysis

dataset

are

used

to

analyze

fine-scale

characteristics

of

the

short-term

heavy

rainfall

that

caused

flood

disasters

in

Datong

county

of

Xining

city,

Qinghai

province

during

17—18

August

2022.

The

results

show

that

before

the

heavy

precipitation,

there

was

an

obvious

warm

anomaly

at

300

h