TITLE

The Influence of the Madden–Julian Oscillation on Canadian Wintertime Surface Air Temperature

AUTHOR(S)
Hai Lin; Brunet, Gilbert
PUB. DATE
July 2009
SOURCE
Monthly Weather Review;Jul2009, Vol. 137 Issue 7, p2250
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Using the homogenized Canadian historical daily surface air temperature (SAT) for 210 relatively evenly distributed stations across Canada, the lagged composites and probability of the above- and below-normal SAT in Canada for different phases of the Madden–Julian oscillation (MJO) in the winter season are analyzed. Significant positive SAT anomalies and high probability of above-normal events in the central and eastern Canada are found 5–15 days following MJO phase 3, which corresponds to an enhanced precipitation over the Indian Ocean and Maritime Continent and a reduced convective activity near the tropical central Pacific. On the other hand, a positive SAT anomaly appears over a large part of northern and northeastern Canada about 5–15 days after the MJO is detected in phase 7. An analysis of the evolution of the 500-hPa geopotential height and sea level pressure anomalies indicates that the Canadian SAT anomaly is a result of a Rossby wave train associated with the tropical convection anomaly of the MJO. Hence, the MJO phase provides useful information for the extended-range forecast of Canadian winter surface air temperature. This result also provides an important reference for numerical model verifications.
ACCESSION #
43591020

 

Related Articles

  • River Hydrology and the North Atlantic Oscillation: A General Review. Pociask-Karteczka, Joanna // AMBIO - A Journal of the Human Environment;Sep2006, Vol. 35 Issue 6, p312 

    The article discusses the correlation between the North Atlantic Oscillation (NAO) and the hydrological conditions in Europe. NAO is considered as one of the major regional system controlling atmospheric circulation that influences climate in Europe, northern Africa, Greenland, North America and...

  • Incidencia de El Niño-Oscilación del Sur en la precipitación y la temperatura del aire en Colombia, utilizando el Climate Explorer. Puertas Orozco, Olga Lucía; Escobar, Yesid Carvajal // Ingeniería y Desarrollo;ene-jun2008, Issue 23, p104 

    The knowledge of the phenomenon El Niño Southern Oscillation (ENSO) still is partial, the variations in the Colombian climate and the ENSO events make difficult its understanding and the prediction of its impacts. This research used the Climate Explorer, to establish linear relations between...

  • Atmospheric water budget over the western Himalayas in a regional climate model. DIMRI, A // Journal of Earth System Science;Aug2012, Vol. 121 Issue 4, p963 

    During winter months (December, January, February - DJF), the western Himalayas (WH) receive precipitation from eastward moving extratropical cyclones, called western disturbances (WDs) in Indian parlance. Winter precipitation-moisture convergence-evaporation (P-C-E) cycle is analyzed for a...

  • Observed trends in the river ice regimes of northwest Canada.  // Hydrology Research;2010, Vol. 41 Issue 6, p462 

    No abstract available.

  • Characteristics of meteorological drought in Bangladesh. Dash, B.; Rafiuddin, M.; Khanam, Fahima; Islam, M. // Natural Hazards;Dec2012, Vol. 64 Issue 2, p1461 

    Meteorological drought events occur in Bangladesh are diagnosed using monthly rainfall and mean air temperature from the surface observations and Regional Climate Model (RegCM) by calculating Standardized Precipitation Index (SPI) and Palmer Drought Severity Index (PDSI) for the period...

  • Large-Scale Control on the Patagonian Climate. Garreaud, R.; Lopez, P.; Minvielle, M.; Rojas, M. // Journal of Climate;Jan2013, Vol. 26 Issue 1, p215 

    Patagonia, located in southern South America, is a vast and remote region holding a rich variety of past environmental records but a small number of meteorological stations. Precipitation over this region is mostly produced by disturbances embedded in the westerly flow and is strongly modified...

  • Some Recent Trends in Precipitation in Western Canada and Their Possible Link to Rising Carbon Dioxide. Danard, Maurice B.; Murty, T. S. // Atmosphere -- Ocean (Canadian Meteorological & Oceanographic Soc;Mar1988, Vol. 26 Issue 1, p139 

    Observations of the changes in mean annual and seasonal precipitation with time in British Columbia and western Alberta between the periods 1931-60 and 1951-80 indicate that more stations show an increase than a decrease. Changes tend to be positive on the coast, negative in south-central...

  • Comparing analysis of hydroclimatic changes in glacier-fed rivers between the Tibet- and Bhutan-Himalayas. Jingshi Liu; Zhongyan Wang; Tongliang Gong; Tenzey Uygen // Journal of Himalayan Earth Science;2011, Vol. 44, p52 

    The article presents a comparison of hydroclimatic changes in the Kurichu River in the Bhutan Himalayas (BH) and the Karuxung River in the Tibetan Himalayas. From 1986 to 2006, the annual runoff showed increasing trends with increasing air temperature and precipitation in TH, and at the same...

  • Problems with Heavy Snow Data at First-Order Stations in the United States. Changnon, Stanley A. // Journal of Atmospheric & Oceanic Technology;Nov2006, Vol. 23 Issue 11, p1621 

    Various interests desire information and data on heavy snowfalls to define their spatial and temporal occurrences. Historical data at the nation’s 208 first-order stations for events with 15.2 cm or more snowfall in 2 days or less was assessed, and revealed various serious data problems...

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