Summer convection and lightning over the Mackenzie river basin and their Impacts during 1994 and 1995

Kochtubajda, Bohdan; Stewart, Ronald E.; Gyakum, John R.; Flannigan, Mike D.

doi:10.3137/ao.400208

Cited by 29 publications

(19 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Lightning in the Edmonton region thus appears to be largely driven by annual and daily solar heating cycles. This is consistent with findings by Kochtubajda et al (2002) for the Mackenzie River basin to the north. However, Fig.…”

Section: Top Lightning Days Top Lightning Dayssupporting

confidence: 82%

“…Space considerations forced us to truncate the far north-west section in several of the following figures. Information on lightning occurrence in portions of the Mackenzie River basin and Yukon Territory which is not shown can be found in Kochtubajda et al (2002). Figure 2 shows lightning occurrence (days yr -1 ) for February 1998 to December 2000.…”

Section: Results a Large Scalementioning

confidence: 99%

“…The Canadian Lightning Detection Network (CLDN) consists of 82 sensors that detect lightning over most of Canada to approximately 65°N in the far west, 55°N in the far east, and offshore to about 300 km. Previous information on lightning occurrence was available only in the vicinity of staffed meteorological observing sites or in limited areas covered by provincial agencies (e.g., Clodman and Chisholm, 1996;Kochtubajda et al, 2002). There were vast stretches of the country where knowledge was lacking.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Lightning occurrence patterns over Canada and adjacent United States from lightning detection network observations

Burrows¹,

King²,

Lewis³

et al. 2002

Atmosphere-Ocean

View full text Add to dashboard Cite

IntroductionContinuous real-time coverage of lightning occurrence across southern Canada has been available since the installation of the Canadian portion of the integrated North American Lightning Detection Network (NALDN) was completed in February 1998. The Canadian Lightning Detection Network (CLDN) consists of 82 sensors that detect lightning over most of Canada to approximately 65°N in the far west, 55°N in the far east, and offshore to about 300 km. Previous information on lightning occurrence was available only in the vicinity of staffed meteorological observing sites or in limited areas covered by provincial agencies (e.g., Clodman and Chisholm, 1996;Kochtubajda et al., 2002). There were vast stretches of the country where knowledge was lacking. The incidence of lightning in Canada has likely been underestimated in traditional climatologies based on observations available before the CLDN was installed. For example, in a study of Atlantic Canada using CLDN data, Lewis (2000) found that during two winters, December to April 1998April -1999April and 1999April -2000 separate thunderstorm days were identified by the ten-station surface weather network but the CLDN network detected 41 separate thunderstorm days over land for the same period. He further noted that since the installation of the CLDN it is apparent that winter lightning occurs far more frequently off the coast of Atlantic Canada than had been previously suspected or forecast. While a true lightning climatology is probably several years away from definition, we believe there are now sufficient data to identify significant features of lightning occurrence patterns over the portion of Canada covered by the CLDN. We show national summary results, and expand in greater detail for three diverse regions. Where possible we suggest physical reasons for significant observed features. Emphasis is on Canadian lightning patterns but we do comment on some interesting features found over the northern United States. In discussions we assume that the reader is familiar with locations, boundaries, and names of political jurisdictions, and major geographical features in both countries.

show abstract

Section: Top Lightning Days Top Lightning Dayssupporting

confidence: 82%

Section: Results a Large Scalementioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Lightning occurrence patterns over Canada and adjacent United States from lightning detection network observations

Burrows¹,

King²,

Lewis³

et al. 2002

Atmosphere-Ocean

View full text Add to dashboard Cite

show abstract

“…In northern Canada, a significant area of positive flash percentage of more than 35% extends over the forested regions of Yukon and northern British Columbia. Previous studies have suggested that thunderstorms entraining smoke from forest fires may exhibit enhanced positive CG lightning activity (Lyons et al, 1998b;Kochtubajda et al, 2002;Fernandes et al, 2006). …”

Section: Data and Analysismentioning

confidence: 99%

A decade of cloud‐to‐ground lightning in Canada: 1999–2008. Part 2: Polarity, multiplicity and first‐stroke peak current

Kochtubajda¹,

Burrows

2010

Atmosphere-Ocean

View full text Add to dashboard Cite

show abstract

“…Discharges can also occur from the cloud to the sky or between clouds, but these types are less frequent (Uman, 2001). Lightning activity typically starts the majority of fires in the boreal forests of the Mackenzie Basin (Kochtubajda et al, 2002). Although fires are beneficial for controlling forest diseases and insects and for maintaining biological diversity, they affect the traditional land-based lifestyle by destroying habitat that is used for hunting, trapping, and harvesting berries and herbal medicines.…”

Section: Lightning Thunder and Firementioning

confidence: 99%

Science Meets Traditional Knowledge: Water and Climate in the Sahtu (Great Bear Lake) Region, Northwest Territories, Canada

Woo¹,

Modeste²,

Martz³

et al. 2009

ARCTIC

View full text Add to dashboard Cite

ABSTRACT. In July 2005, several scientists from the Mackenzie GEWEX (Global Energy and Water Cycle Experiment) Study, known as MAGS, met with aboriginal people in Deline on the shore of Great Bear Lake to exchange information on climate and water in the region. Topics discussed pertained directly to the northern environment, and they included climate variability and change, wind, lightning, lake ice, lake level, and streamflow. The traditional knowledge shared by the residents is a rich source of local expertise about the landscape and climate systems of the Deline area, while the scientific knowledge provided by MAGS presents a scientific basis for many observed climate and water phenomena, particularly on a broad regional scale. Through cordial and open discussions, the meeting facilitated the sharing of traditional knowledge and scientific results. The meeting enhanced the potential for traditional knowledge to help direct and validate scientific investigations and for scientific knowledge to be used in conjunction with traditional knowledge to guide community decision making.Key words: weather and climate, water resources, atmospheric science, hydrology, traditional knowledge, northern environment, Deline, Great Bear Lake RÉSUMÉ. En juillet 2005, plusieurs scientifiques de l'étude Mackenzie GEWEX (expérience internationale sur l'énergie et le cycle hydrologique), connue sous le nom de MAGS, ont rencontré les Autochtones de Deline, sur la côte du Grand lac de l'Ours dans le but d'échanger des données sur les conditions climatiques et hydrologiques de la région. Les sujets à l'étude se rapportaient directement à l'environnement nordique, plus précisément la variabilité et le changement climatiques, le vent, la foudre, la glace lacustre, le niveau des lacs et le débit des cours d'eau. Les connaissances traditionnelles des habitants de la région représentent une riche source d'expertise locale au sujet du paysage et des systèmes climatiques de la région de Deline, tandis que les connaissances scientifiques fournies par MAGS constituent une base scientifique pour de nombreux phénomènes climatiques et hydrologiques observés, surtout sur une vaste échelle régionale. Grâce à des discussions cordiales et ouvertes, cette réunion a donné lieu au partage de connaissances traditionnelles et de résultats scientifiques. Cette réunion a également permis d'accroître la possibilité que les connaissances traditionnelles aident à diriger et à valider les enquêtes scientifiques, et que les connaissances scientifiques soient employées de pair avec les connaissances traditionnelles pour favoriser la prise de décisions au sein de la collectivité.

show abstract

Summer convection and lightning over the Mackenzie river basin and their Impacts during 1994 and 1995

Abstract: Lightning activity over the Mackenzie basin has been examined for the summers of 1995. In

Cited by 29 publications

References 41 publications

Lightning occurrence patterns over Canada and adjacent United States from lightning detection network observations

Lightning occurrence patterns over Canada and adjacent United States from lightning detection network observations

A decade of cloud‐to‐ground lightning in Canada: 1999–2008. Part 2: Polarity, multiplicity and first‐stroke peak current

Science Meets Traditional Knowledge: Water and Climate in the Sahtu (Great Bear Lake) Region, Northwest Territories, Canada

Contact Info

Product

Resources

About