Hydrometric data collection and interpretation in the prairie provinces and Northwest Territories

Perks, Angela; McLaurin, I. S.; Harvey, K.; Wedel, J. H.; Johnson, B. N.; Warner, Lawrence

doi:10.1139/l91-008

Cited by 4 publications

(3 citation statements)

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“…Then, by the late 1950s, the Canadian hydrometric network doubled to ∼1250 stations and then expanded to 3000 stations by 1975 as the International Hydrological Decade (1965–1974) brought global attention to the need for hydrometric data. However, by the late 1980s the federal network was not meeting the minimum gauging station density suggested by the WMO in some regions across Canada [ Perks et al , 1991; Letvak , 1994]. Instead of continued growth of the Canadian hydrometric network, cuts to the network were beginning to appear by the early 1990s because of increased budget pressures.…”

Section: Decline In Hydrometric Network Density: Examples Of Canada Amentioning

confidence: 99%

Developments in hydrometric network design: A review

Mishra

Coulibaly

2009

Reviews of Geophysics

287

179

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Hydrometric network design for surface water monitoring is employed to address a wide range of environmental and water resources problems. Historical overview of hydrometric network design is provided along with a discussion on new developments and challenges in the design of optimal hydrometric networks. This review starts with precise examples of decline in hydrometric network density, then highlights the increasing requirement of optimal network design in a context of climate and land use changes. An extensive survey of methodological development in hydrometric network design is provided along with discussion on the issue of uncertainty in hydrometric network design and the evolution in data collection techniques and technology. Finally, some conclusions are drawn on the future of hydrometric network design.

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Section: Decline In Hydrometric Network Density: Examples Of Canada Amentioning

confidence: 99%

Developments in hydrometric network design: A review

Mishra

Coulibaly

2009

Reviews of Geophysics

287

179

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“…According to the World Meteorological Organization (WMO, 2008), the hydrometeorological network does not necessarily have to be full-scale but it should be such as to maximize information content. In a study conducted by Perks et al (1991) on the adequacy of hydrometeorological observations in Canada, WMO noted that the minimum required density was not reached in the mountainous and inland regions, where densities were only one-fifth to one-third of those recommended by WMO. The density of hydrometeorological stations in the central Himalayan region of Nepal is low, with most located in valley bottoms and in areas that are easily accessible and populated (Barros, Joshi, Putkonen, & Burbank, 2000).…”

Section: Adequacy Of Hydrometeorological Observation Network and Quamentioning

confidence: 99%

Establishment of a regional flood information system in the Hindu Kush Himalayas: challenges and opportunities

Shrestha

Grabs

Khadgi

2015

International Journal of Water Resources Development

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Rapid advances in communication technology are making access to information faster, more reliable, and cheaper. At the same time, hydrological and meteorological monitoring technologies continue to improve significantly. These technological advances can be exploited to promote regional cooperation for flood risk reduction in the Hindu Kush Himalayas by providing an end-to-end flood information system. The system will function as a decision support tool for decision makers to alert vulnerable communities in a timely and accurate manner. This article provides an example of how regional cooperation has been achieved and is being promoted in the Hindu Kush Himalayas through the development of a regional flood information system.

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“…A number of studies also found that the Canadian National Hydrometric Network (CNHN) density is below the World Meteorology Organization (WMO) minimum standards [ Perks et al ., ; Letvak , ; Coulibaly et al ., ]. Since its establishment in the 1890s, the CNHN has always been below the WMO recommendations for minimum network density [see Mishra and Coulibaly , ; Perks et al ., ; Letvak , ]. A recent study by Coulibaly et al .…”

Section: Introductionmentioning

confidence: 99%

CRDEMO: Combined regionalization and dual entropy-multiobjective optimization for hydrometric network design

2013

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[1] Establishing an adequate hydrometric network to provide accurate and reliable continuous flow information for various users remains a major challenge. This includes the design of new networks or the evaluation of existing networks. This study proposes a combined regionalization and dual entropy-multiobjective optimization (CRDEMO) method for determining minimum network that meets the World Meteorology Organization (WMO) standards, which is considered herein an optimal minimum network. A regionalization approach is used to estimate flows in potential locations for new additional stations, and a dual entropy-multiobjective optimization approach is used to identify optimal trade-offs between the maximum possible information content and the minimum shared information among the stations. The method was examined in two Canadian River basins, namely, the St. John River and St. Lawrence River basins. The St. John River basin has a higher network density compared to the St. Lawrence River basin. Results of the analysis indicate that the St. Lawrence River basin requires a high number of new additional stations to meet the WMO minimum network density. It was also determined that existing stations do not have a significant influence in determining the locations of new stations in the St. Lawrence River basin. Conversely, however, in the St. John River basin, existing stations have significant influence on the determination of locations of new stations due to the higher number of existing stations. Overall, the CRDEMO technique is shown to be robust for designing optimal minimum hydrometric networks and can be a useful tool for evaluating current and proposed networks.Citation: Samuel, J., P. Coulibaly, and J. Kollat (2013), CRDEMO: Combined regionalization and dual entropy-multiobjective optimization for hydrometric network design, Water Resour. Res., 49,[8070][8071][8072][8073][8074][8075][8076][8077][8078][8079][8080][8081][8082][8083][8084][8085][8086][8087][8088][8089]

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Hydrometric data collection and interpretation in the prairie provinces and Northwest Territories

Cited by 4 publications

References 0 publications

Developments in hydrometric network design: A review

Developments in hydrometric network design: A review

Establishment of a regional flood information system in the Hindu Kush Himalayas: challenges and opportunities

CRDEMO: Combined regionalization and dual entropy-multiobjective optimization for hydrometric network design

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