Characterizing the Surface Features of the 1999–2005 Canadian Prairie Drought in Relation to Previous Severe Twentieth Century Events

Bonsal, Barrie; Wheaton, Elaine; Meinert, Alison; Siemens, Evan

doi:10.1080/07055900.2011.594024

Cited by 40 publications

(33 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The approach adopted in this study could be extended to groundwater level records as a further line of research. Similar variability in drought terminations was reported by Bonsal et al (2011), and was attributed by Kam et al (2013) to differences in rainfall intensity determined by the synoptic conditions (e.g. tropical cyclones).…”

Section: Drought Termination Rate For 2009-2012 In a Historical Contextsupporting

confidence: 49%

“…Drought termination is characterized by its duration (e.g. Bonsal et al, 2011), rate of change (e.g. Correia et al, 1987;Nkemdirim and Weber, 1999), and seasonality (e.g.…”

Section: Defining Drought Terminationmentioning

confidence: 99%

“…Mo, 2011;Kam et al, 2013;Maxwell et al, 2013;Patterson et al, 2013) have typically considered drought termination to be instantaneous. There are two notable exceptions: Bonsal et al (2011) subdivided drought into six stages, one of which is the concept of drought termination as a phase considered herein, and Nkemdirim and Weber (1999) expressed the concept of a rate of drought termination using Palmer Drought Severity Index units over time.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A systematic assessment of drought termination in the United Kingdom

Parry

Wilby

Prudhomme

et al. 2016

Hydrol. Earth Syst. Sci.

View full text Add to dashboard Cite

Abstract. Drought termination can be associated with dramatic transitions from drought to flooding. Greater attention may be given to these newsworthy and memorable events, but drought terminations that proceed gradually also pose challenges for water resource managers. This paper defines drought termination as a distinctive phase of the event. Using observed river flow records for 52 UK catchments, a more systematic and objective approach for detecting drought terminations is demonstrated. The parameters of the approach are informed by a sensitivity analysis that ensures a focus on terminations of multi-season to multi-year droughts. The resulting inventory of 467 drought terminations provides an unprecedented historical perspective on this phenomenon in the UK. Nationally and regionally coherent drought termination events are identifiable, although their characteristics vary both between and within major episodes. Contrasting drought termination events in 1995-1998 and 2009-2012 are examined in greater depth. The data are also used to assess potential linkages between metrics of drought termination and catchment properties. The duration of drought termination is moderately negatively correlated with elevation (r s = −0.47) and catchment average rainfall (r s = −0.42), suggesting that wetter catchments in upland areas of the UK tend to experience shorter drought terminations. More urbanized catchments tend to have gradual drought terminations (contrary to expectations of flashy hydrological response in such areas), although this may also reflect the type of catchments typical of lowland England. Significant correlations are found between the duration of the drought development phase and both the duration (r s = −0.29) and rate (r s = 0.28) of drought termination. This suggests that prolonged drought development phases tend to be followed by shorter and more abrupt drought terminations. The inventory helps to place individual events within a long-term context. The drought termination phase in 2009-2012 was, at the time, regarded as exceptional in terms of magnitude and spatial footprint, but the Thames river flow record identifies several comparable events before 1930. The chronology could, in due course, provide a basis for exploring the complex drivers, long-term variability, and impacts of drought termination events.

show abstract

Section: Drought Termination Rate For 2009-2012 In a Historical Contextsupporting

confidence: 49%

“…Drought termination is characterized by its duration (e.g. Bonsal et al, 2011), rate of change (e.g. Correia et al, 1987;Nkemdirim and Weber, 1999), and seasonality (e.g.…”

Section: Defining Drought Terminationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A systematic assessment of drought termination in the United Kingdom

Parry

Wilby

Prudhomme

et al. 2016

Hydrol. Earth Syst. Sci.

View full text Add to dashboard Cite

show abstract

“…Whilst most concepts of drought termination do not account for this, Mo (2011) introduced a 'transition time' at the end of a drought and Bonsal et al (2011) suggested the partitioning of drought into six distinct parts, one of which is a 'recovery' phase. The approach described below builds upon these concepts.…”

Section: A Novel Approachmentioning

confidence: 99%

Evaluation of drought occurrence in springs yields of the Nízke Tatry Mts.

Parry¹,

Prudhomme²,

Wilby³

et al. 2015

Drought: Research and Science-Policy Interfacing

View full text Add to dashboard Cite

“…Bonsal et al (2011b) utilize drought indices and related parameters to document the evolution of this drought and to compare its features with others. The study incorporates the Standardized Precipitation Index and the Palmer Drought Severity Index to characterize the surface features of the 1999-2005 Prairie drought in terms of its region of origin, propagation, persistence and termination.…”

Section: Following Articlesmentioning

confidence: 99%