Articles | Volume 22, issue 6
Hydrol. Earth Syst. Sci., 22, 3105–3124, 2018
https://doi.org/10.5194/hess-22-3105-2018

Special issue: Understanding and predicting Earth system and hydrological...

Hydrol. Earth Syst. Sci., 22, 3105–3124, 2018
https://doi.org/10.5194/hess-22-3105-2018

Research article 04 Jun 2018

Research article | 04 Jun 2018

Historical drought patterns over Canada and their teleconnections with large-scale climate signals

Zilefac Elvis Asong et al.

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Cited articles

Addison, P. S.: The Illustrated Wavelet Transform Handbook: Introductory Theory and Applications in Science, Engineering, Medicine and Finance, Second Edition, CRC Press, Taylor & Francis Group, Boca Raton, Florida, USA, 2016. 
Asong, Z. E., Khaliq, M. N., and Wheater, H. S.: Regionalization of precipitation characteristics in the Canadian Prairie Provinces using large-scale atmospheric covariates and geophysical attributes, Stoch. Env. Res. Risk A., 29, 875–892, https://doi.org/10.1007/s00477-014-0918-z, 2015. 
Asong, Z. E., Khaliq, M. N., and Wheater, H. S.: Multisite multivariate modeling of daily precipitation and temperature in the Canadian Prairie Provinces using generalized linear models, Clim. Dynam., 47, 2901–2921, https://doi.org/10.1007/s00382-016-3004-z, 2016. 
Asong, Z. E., Razavi, S., Wheater, H. S., and Wong, J. S.: Evaluation of Integrated Multi-satellitE Retrievals for GPM (IMERG) over Southern Canada against Ground Precipitation Observations: A Preliminary Assessment, J. Hydrometeorol., 18, 1033–1050, https://doi.org/10.1175/jhm-d-16-0187.1, 2017. 
Barnston, A. G. and Livezey, R. E.: Classification, Seasonality and Persistence of Low-Frequency Atmospheric Circulation Patterns, Mon. Weather Rev., 115, 1083–1126, https://doi.org/10.1175/1520-0493(1987)115<1083:csapol>2.0.co;2, 1987. 
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Short summary
Canada is very susceptible to recurrent droughts, which have damaging impacts on regional water resources and agriculture. However, nationwide drought assessments are currently lacking and impacted by limited ground-based observations. We delineate two major drought regions (Prairies and northern central) over Canada and link drought characteristics to external factors of climate variability. This study helps to determine when the drought events occur, their duration, and how often they occur.