TITLE

Relationship between Reduction of Summer Precipitation in North China and Atmospheric Circulation Anomalies

AUTHOR(S)
Hao, Lisheng; Min, Jinzhong; Ding, Yihui; Wang, Ji
PUB. DATE
June 2010
SOURCE
Journal of Water Resource & Protection;Jun2010, Vol. 2 Issue 6, p569
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Based on Reanalysis datasets from National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) and summer rainfall datasets from China National Climate Center (NCC), by using trend analysis and composite analysis methods, the relationship between the reduction of summer precipitation in North China and northern hemispheric circulation changes was investigated. The results show that summer rainfall in North China had a significant decreasing tendency, especially true since 1965 in which an abrupt change occurred. The northern hemisphere atmospheric circulation at 500 hPa had a remarkable change after 1965, from outstanding meridional circulation to outstanding zonal circulation, leading to upper trough activity to decrease, resulting in the rainfall weather processes caused by upward motion behind trough significantly to reduce. At 500 hPa in Mongolian region, air temperature decreased, resulting in lower troposphere pressure to increase, leading to low pressure activity significantly to decrease and rainfall weather processes influencing North China to reduce. At the same time, the decreased air temperature in 500 hPa would caused the upper troposphere geopotential height to reduce, resulting in high-altitude jet southerly location, the East Asian summer monsoon to weaken, then it was difficult for water vapor transport to cross the Yangtze River valley and reach the North China region, with a southerly summer monsoon rainfall zone. The summer precipitation reduction in North China had a good correlation with the northern hemispheric circulation changes.
ACCESSION #
52253053

 

Related Articles

  • Climate variability over the Greater Horn of Africa based on NCAR AGCM ensemble. Anyah, R. O.; Semazzi, F. H. M. // Theoretical & Applied Climatology;2006, Vol. 86 Issue 1-4, p39 

    The variability and extreme wet anomalies in the Greater Horn of Africa (GHA) climate are investigated based on a multi-year National Center for Atmospheric Research (NCAR) AGCM ensemble data. While the GCM ensemble average reproduces realistic inter-annual variability of rainfall pattern over...

  • Simulation of Indian summer monsoon circulation and rainfall using RegCM3. Dash, S. K.; Shekhar, M. S.; Singh, G. P. // Theoretical & Applied Climatology;2006, Vol. 86 Issue 1-4, p161 

    The Regional Climate Model RegCM3 has been used to examine its suitability in simulating the Indian summer monsoon circulation features and associated rainfall. The model is integrated at 55 km horizontal resolution over a South Asia domain for the period April–September of the years 1993...

  • Mechanism of Interannual to Decadal Variability of the North Atlantic Circulation. Eden, Carsten; Willebrand, Jurgen // Journal of Climate;5/15/2001, Vol. 14 Issue 10, p2266 

    A model of the Atlantic Ocean was forced with decadal-scale time series of surface fluxes taken from the National Centers for Environmental Prediction-National Center for Atmospheric Research reanalysis. The bulk of the variability of the oceanic circulation is found to be related to the North...

  • Relationships between the West Asian subtropical westerly jet and summer precipitation in northern Xinjiang. Zhao, Yong; Wang, MinZhong; Huang, AnNing; Li, HongJun; Huo, Wen; Yang, Qing // Theoretical & Applied Climatology;May2014, Vol. 116 Issue 3-4, p403 

    The relation between the spatial and temporal variations of the West Asian subtropical westerly jet (WASWJ) and the summer precipitation in northern Xinjiang has been explored using the NCEP/NCAR reanalysis data and the summer precipitation data at 43 stations in northern Xinjiang during 1961 to...

  • Impacts of two types of El Niño on atmospheric circulation in the Southern Hemisphere. Sun, Dan; Xue, Feng; Zhou, Tianjun // Advances in Atmospheric Sciences;Nov2013, Vol. 30 Issue 6, p1732 

    Based on NCEP/NCAR (National Centers for Environmental Prediction/National Center for Atmospheric Research) reanalysis data from 1979 to 2010, the impacts of two types of El Niño on atmospheric circulation in the Southern Hemisphere (SH) are analyzed. It is shown that, when a warming event...

  • Glacier Variations in the Fedchenko Basin, Tajikistan, 1992-2006. Qibing Zhang; Shichang Kang; Feng Chen // Mountain Research & Development;Feb2014, Vol. 34 Issue 1, p56 

    The Fedchenko glacier system harbors the longest glacier (77 km) outside of the polar areas. It has a great influence on the local economy and ecology as a water resource. The glacier area in the Fedchenko basin was investigated using Landsat TM images in 1992, Landsat ETM+ images in 2000, and...

  • National Centers for Environmental Prediction - National Center for Atmospheric Research (NCEP-NCAR) reanalyses data for hydrologic modelling on a basin scale. Solaiman, Tarana A.; Simonovic, Slobodan P. // Canadian Journal of Civil Engineering;Apr2010, Vol. 37 Issue 4, p611 

    This paper evaluates the National Centers for Environmental Prediction - National Center for Atmospheric Research (NCEP-NCAR) reanalyses hydroclimatic data as an initial check for assessment of hydrologic impacts of climate change at the basin scale. A reanalysis dataset for daily precipitation,...

  • Recurrent Supersynoptic Evolution of the Great Plains Low-Level Jet. Weaver, Scott J.; Nigam, Sumant // Journal of Climate;Jan2011, Vol. 24 Issue 2, p575 

    The evolution of supersynoptic (i.e., pentad) Great Plains low-level jet (GPLLJ) variability, its precipitation impacts, and large-scale circulation context are analyzed in the North American Regional Reanalysis (NARR)--a high-resolution precipitation-assimilating dataset--and the NCEP--NCAR...

  • Cause of severe droughts in Southwest China during 1951-2010. Feng, Lin; Li, Tim; Yu, Weidong // Climate Dynamics;Oct2014, Vol. 43 Issue 7/8, p2033 

    The cause of severe droughts over the Southwest China (SWC) during the local dry season is investigated based on the station rainfall data and the National Centers for Environmental Prediction/National Center for Atmospheric Research reanalysis data during 1951-2010. The droughts are in general...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics