TITLE

Impact of the Eurasian Teleconnection on the Interannual Variability of Haze-Fog in Northern China in January

AUTHOR(S)
Li, Ye; Sheng, Lifang; Li, Chun; Wang, Yuhang
PUB. DATE
March 2019
SOURCE
Atmosphere;Mar2019, Vol. 10 Issue 3, p113
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Using meteorological observation data and NCEP/NCAR (National Centers for Environmental Prediction/National Center for Atmospheric Research) reanalysis data, the impacts of the atmospheric circulation pattern on the interannual variability of haze-fog in northern China in January are studied by means of statistical methods. The results showed that the Eurasian teleconnection (EU) at the 500 hPa isostatic surface is the most important pattern affecting the haze-fog frequency in northern China. However, the existing EU index cannot perfectly describe this pattern. To this end, this study selects three main activity centers to define a new EU index, which are located in the Europe (10 °E, 55 °N), Siberia (80 °E, 60 °N), and Shandong, China (120 °E, 40 °N). The difference between the existing EU index and the new EU index is mainly the position of the anomaly center of the 500 hPa geopotential height. The EU is in a negative phase in higher haze-fog years but is in a positive phase in lower haze-fog years. The 500 hPa geopotential height shows negative anomalies in Europe and East Asian and a positive anomaly in Siberia in the negative EU phase. Using Plumb wave activity flux analysis, it was found that the cold wave affecting northern China is less in the negative EU phase than that in the positive EU phase, which resulted in more haze-fog days. In addition, the results also showed that the EU pattern goes through a considerable development and decay within 13 days. The visibility starts to significantly decrease at a lag of −1 to 2 days in the negative EU peak phase and is influenced by the weak north wind that is caused by the high pressure.
ACCESSION #
137289304

 

Related Articles

  • 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...

  • An effective configuration of ensemble size and horizontal resolution for the NCEP GEFS. Ma, Juhui; Zhu, Yuejian; Wobus, Richard; Wang, Panxing // Advances in Atmospheric Sciences;Jul2012, Vol. 29 Issue 4, p782 

    Two important questions are addressed in this paper using the Global Ensemble Forecast System (GEFS) from the National Centers for Environmental Prediction (NCEP): (1) How many ensemble members are needed to better represent forecast uncertainties with limited computational resources? (2) What...

  • A gridded monthly upper-air data set from 1918 to 1957. Brönnimann, Stefan; Griesser, Thomas; Stickler, Alexander // Climate Dynamics;Feb2012, Vol. 38 Issue 3/4, p475 

    Significant efforts have been devoted in recent years towards extending observation-based three-dimensional atmospheric data sets back in time. Such data sets form an important basis for a better understanding of the climate system. Here we present a new monthly three-dimensional global data set...

  • Can Indian Ocean SST anomalies influence South American rainfall? Taschetto, Andréa; Ambrizzi, Tércio // Climate Dynamics;Apr2012, Vol. 38 Issue 7/8, p1615 

    In this study we examine the impact of Indian Ocean sea surface temperature (SST) variability on South American circulation using observations and a suite of numerical experiments forced by a combination of Indian and Pacific SST anomalies. Previous studies have shown that the Indian Ocean...

  • Improved Physical Processes in a Regional Climate Model and Their Impact on the Simulated Summer Monsoon Circulations over East Asia. Yoo-Bin Yhang; Song-You Hong // Journal of Climate;Mar2008, Vol. 21 Issue 5, p963 

    This paper documents the sensitivity of the modeled evolution of the East Asian summer monsoon (EASM) to physical parameterization using the National Centers for Environmental Prediction (NCEP) Regional Spectral Model (RSM). To this end, perfect boundary condition experiments driven by analysis...

  • Changes to the North Atlantic Subtropical High and Its Role in the Intensification of Summer Rainfall Variability in the Southeastern United States. Wenhong Li; Laifang Li; Rong Fu; Yi Deng; Hui Wang // Journal of Climate;Mar2011, Vol. 24 Issue 5, p1499 

    This study investigates the changes of the North Atlantic subtropical high (NASH) and its impact on summer precipitation over the southeastern (SE) United States using the 850-hPa geopotential height field in the National Centers for Environmental Prediction (NCEP) reanalysis, the 40-yr European...

  • Climatological influence of Eurasian winter surface conditions on the Asian and Indo‐Pacific summer circulation in the NCEP CFSv2 seasonal reforecasts. Shukla, Ravi P.; Huang, Bohua; Dirmeyer, Paul A.; Kinter, James L.; Shin, Chul‐Su; Marx, L. // International Journal of Climatology;6/30/2019, Vol. 39 Issue 8, p3431 

    This study evaluates the possible influence of the winter surface conditions in Eurasia on the summer circulation over the Asian continent and Indo‐Pacific region. We have analysed multi‐seasonal ensemble reforecasts for 30 years (1979–2008) using the National Centers...

  • Ensemble-based observation impact estimates using the NCEP GFS. Ota, Yoichiro; Derber, John C.; Kalnay, Eugenia; Miyoshi, Takemasa // Tellus: Series A;2013, Vol. 65, p1 

    The impacts of the assimilated observations on the 24-hour forecasts are estimated with the ensemble-based method proposed by Kalnay et al. using an ensemble Kalman filter (EnKF). This method estimates the relative impact of observations in data assimilation similar to the adjoint-based method...

  • 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...

Share

Read the Article

Courtesy of NEW JERSEY STATE LIBRARY

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

Try another library?
Sign out of this library

Other Topics