scholarly journals Identification and characteristics analysis of Meiyu in Anhui Province based on the National Standard of Meiyu monitoring indices

2021 ◽  
Author(s):  
Yuliang Zhou ◽  
Yilin Zuo ◽  
Yuliang Zhang ◽  
Juliang Jin ◽  
Ping Zhou ◽  
...  
Keyword(s):  
Yangtze River ◽  
Precipitation Amount ◽  
Heavy Rain ◽  
Anhui Province ◽  
National Standard ◽  
Transitional Region ◽  
The Yangtze River ◽  
Huaihe River ◽  
Intensity Index ◽  
Rainy Weather

Abstract Meiyu is the term used to depict the consecutive rainy weather advancing in the months before the flooding season in East Asia. However, the temporal-spatial climatic characteristics of Meiyu can be differently specified by different evaluation criteria. In this study, we employ both the atmospheric circulation conditions and meteorological factors to identify the spatial characteristics of precipitation of Meiyu in Anhui Province using the collected data of 1957–2020. We further conduct a comparison analysis of the precipitation characteristics in the northern Huaihe River of Aihui province (NHA) with Meiyu rainfall features in two other regions: south of the Yangtze River in Anhui Province (SYA) and the region between the Yangtze River and Huaihe River in Anhui Province (YHA). Finally, the relation between the intensity index between Meiyu and flood or drought is investigated. The results showed that the climatic feature in NHA is a transitional region between Meiyu and non-Meiyu. Also, we proposed a Meiyu intensity index determined by the precipitation amount, intensity, and days of heavy rain. This index performs better than the Meiyu intensity index of National Standard in terms of flood and drought identification.

scholarly journals Association of the Rainy Season Precipitation with Low-Level Meridional Wind in the Yangtze River Valley and North China

2012 ◽  
Vol 25 (2) ◽  
pp. 792-799 ◽  
Author(s):  
Gang Zeng ◽  
Wei-Chyung Wang ◽  
Caiming Shen
Keyword(s):  
Rainy Season ◽  
Yangtze River ◽  
North China ◽  
Precipitation Amount ◽  
Meridional Wind ◽  
Yangtze River Valley ◽  
River Valley ◽  
The Yangtze River ◽  
Intergovernmental Panel ◽  
June July

Abstract This study first used measurements to establish the association between the rainy season precipitation in the Yangtze River valley (YRV) and north China (NC) and the 850-hPa meridional wind, and then evaluated the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4) models’ simulations of both the associations and precipitation amount. It is shown that there exists a statistically significant positive correlation in the June–July precipitation and wind gradient over the YRV, and in the July–August precipitation and wind over NC. These associations are robust at daily, monthly, and interannual scales. Although many models are found to be capable of simulating the associations, the precipitation amount is still quite inadequate when compared with observations, thus raising the issue of the importance of lower-level wind simulations.

Analysis of simulated heavy rain over the Yangtze River valley during 11–30 June 1998 using RIEMS

2003 ◽  
Vol 20 (5) ◽  
pp. 815-824 ◽  
Author(s):  
Xiong Zhe ◽  
Wang Shuyu ◽  
Zeng Zhaomei ◽  
Fu Congbin
Keyword(s):  
Yangtze River ◽  
Heavy Rain ◽  
Yangtze River Valley ◽  
River Valley ◽  
The Yangtze River

Test Research on the Basic Properties of Soft Soil along the Yangtze River Anhui Province

2012 ◽  
Vol 594-597 ◽  
pp. 596-599
Author(s):  
Song Wei ◽  
Qing Yu Zhang ◽  
Jian Guo Liu ◽  
Liang Hui Xu ◽  
Qing Chen
Keyword(s):  
Yangtze River ◽  
Construction Projects ◽  
Soft Soil ◽  
Anhui Province ◽  
The Yangtze River ◽  
Large Area ◽  
Basic Properties ◽  
River Region ◽  
Project Construction ◽  
Consolidation Coefficient

The general soft soil widely exists in coastal, riverside and lakeside areas. Large area along the Yangtze River in Anhui Province is also the distribution of soft soil. The existence of soft soil has some degree effect on the project construction. According to the laboratory tests, the basic properties of the soft soil in these areas were researched. Based on test results, and compared with the soft soil of other areas, results show that the soft soil of Anhui along the Yangtze River has its own special nature. It include that, compared with other areas soft soil, the soil void ratio and compression coefficient are a little smaller; the consolidation coefficient, permeability coefficient and shear strength parameters are a little bigger; the silt content is above normal. The results and further understanding of soft soil basic nature may have certain guiding significance to construction projects along the Yangtze River region.

Ground-based radar reflectivity mosaic of mei-yu precipitation systems over the Yangtze River–Huaihe River basins

2016 ◽  
Vol 33 (11) ◽  
pp. 1285-1296
Author(s):  
Yali Luo ◽  
Weimiao Qian ◽  
Yu Gong ◽  
Hongyan Wang ◽  
Da-Lin Zhang
Keyword(s):  
Yangtze River ◽  
River Basins ◽  
Radar Reflectivity ◽  
The Yangtze River ◽  
Huaihe River

Transmission of Schistosoma japonicum by humans and domestic animals in the Yangtze River valley, Anhui province, China

Acta Tropica ◽  
2005 ◽  
Vol 96 (2-3) ◽  
pp. 198-204 ◽  
Author(s):  
Tian-Ping Wang ◽  
Vang Johansen Maria ◽  
Shi-Qing Zhang ◽  
Feng-Feng Wang ◽  
Wei-Duo Wu ◽  
...  
Keyword(s):  
Schistosoma Japonicum ◽  
Yangtze River ◽  
Domestic Animals ◽  
Yangtze River Valley ◽  
River Valley ◽  
Anhui Province ◽  
The Yangtze River
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