Canadian Water Resources Journal最新文献_第9页

Development of an ice jam database and prediction tool for the Lower Red River 红河下游冰塞数据库和预测工具的开发

IF 1.7 4区环境科学与生态学

Canadian Water Resources Journal Pub Date : 2021-03-11 DOI: 10.1080/07011784.2021.1898479

M. Becket, Karen E. Dow, S. Clark

{"title":"Development of an ice jam database and prediction tool for the Lower Red River","authors":"M. Becket, Karen E. Dow, S. Clark","doi":"10.1080/07011784.2021.1898479","DOIUrl":"https://doi.org/10.1080/07011784.2021.1898479","url":null,"abstract":"Abstract The Lower Red River in Manitoba regularly experiences springtime ice jam flooding, with the most severe events occurring between Lockport and Netley Lake. A database of ice jam events was developed through newspaper archives and historical stage data. Each event was given a severity rating from 1-5, based on the resulting ice jam flood. This facilitated an investigation of ice jam timing and frequency on this section of the Lower Red River and the development of a threshold-based ice jam prediction tool. Out of 54 ice jam events from 1962-2017, all ice jam events occurred when the peak spring flow exceeded 1000 cms and all severe events (severity 3+) occurred when peak spring flows exceeded 1500 cms. The threshold ice jam prediction model was developed using five meteorological and hydrometric parameters including accumulated degree day of thaw, accumulated degree day of freezing, freeze-up water level, snow on ground, and rain equivalence. The model was able to differentiate all severe event years from non-event years with only one false positive result. By gaining a better understanding of ice jamming in the area, this research provides an accessible prediction method that can help guide decisions related to the risk and severity of spring ice jamming.","PeriodicalId":55278,"journal":{"name":"Canadian Water Resources Journal","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2021-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07011784.2021.1898479","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49208411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Economic analysis of the controlled drainage with sub-irrigation system: a case study of grain-producing farms in Quebec and Ontario 地下灌溉系统控制排水的经济分析——以魁北克和安大略省粮食生产农场为例

IF 1.7 4区环境科学与生态学

Canadian Water Resources Journal Pub Date : 2021-03-06 DOI: 10.1080/07011784.2021.1874537

Mariela M. Marmanilo, S. Kulshreshtha, C. Madramootoo

引用次数: 4

Climate change effects on the thermal stratification of Lake Diefenbaker, a large multi-purpose reservoir 气候变化对大型多功能水库迪芬贝克湖热分层的影响

IF 1.7 4区环境科学与生态学

Canadian Water Resources Journal Pub Date : 2020-12-08 DOI: 10.1080/07011784.2020.1854120

L. Morales-Marín, M. Carr, A. Sadeghian, K. Lindenschmidt

{"title":"Climate change effects on the thermal stratification of Lake Diefenbaker, a large multi-purpose reservoir","authors":"L. Morales-Marín, M. Carr, A. Sadeghian, K. Lindenschmidt","doi":"10.1080/07011784.2020.1854120","DOIUrl":"https://doi.org/10.1080/07011784.2020.1854120","url":null,"abstract":"Abstract Large multi-purpose reservoirs serve not only to generate hydropower but to supply water for agricultural irrigation, animal and human consumption and to provide flood control. One of the key factors affecting physical functioning and deteriorating aquatic ecosystems in reservoirs is climate change. For instance, increases in water temperature accelerate chemical reaction rates, decomposition rates and oxygen demand at the water-sediment interface. Earlier thermal stratification onset, and longer and more intense reservoir thermal stratification are all consequences of global warming. Such disruptions in thermal stratification have been associated with reductions in hypolimnion dissolved oxygen, increasing anoxia events and enhancing reservoir eutrophication. In this research paper, we implement the 2 D hydrodynamics and water quality model, CE-QUAL-W2, to investigate the effects of climate change and streamflow scenarios on the thermal structure of Lake Diefenbaker, a large, multipurpose reservoir, located in Saskatchewan, Canada. Model results indicate that meteorological variability will dictate a nonlinear increase in reservoir water temperature in the coming decades, where larger increases in water temperature will occur during summer and fall in the upper layers. Also, decreases in reservoir streamflows will reduce water temperature at intermediate layers during summer and fall. Our model can be used as a tool to mitigate and manage the effects of climate change on the reservoir water quality.","PeriodicalId":55278,"journal":{"name":"Canadian Water Resources Journal","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2020-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07011784.2020.1854120","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41515882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Application of weather Radar for operational hydrology in Canada – a review 气象雷达在加拿大业务水文中的应用综述

IF 1.7 4区环境科学与生态学

Canadian Water Resources Journal Pub Date : 2020-12-08 DOI: 10.1080/07011784.2020.1854119

D. Wijayarathne, P. Coulibaly

引用次数: 3

Ensemble hydrological forecasts for reservoir management of the Shipshaw River catchment using limited data 使用有限数据对希普肖河流域水库管理进行综合水文预报

IF 1.7 4区环境科学与生态学

Canadian Water Resources Journal Pub Date : 2020-10-27 DOI: 10.1080/07011784.2020.1834880

Estelle Reig, M. Boucher, Éric Tremblay

{"title":"Ensemble hydrological forecasts for reservoir management of the Shipshaw River catchment using limited data","authors":"Estelle Reig, M. Boucher, Éric Tremblay","doi":"10.1080/07011784.2020.1834880","DOIUrl":"https://doi.org/10.1080/07011784.2020.1834880","url":null,"abstract":"Abstract Many hydropower companies continue to rely on expert judgment to manage the operations of their reservoirs. Decision-support systems, composed of a hydrological forecasting system and a reservoir model, can ensure that reservoir operation objectives are attained more effectively than by relying solely on expert judgment. In this study, a simple ensemble inflow forecasting system coupled with a reservoir model is developed and the proposed model-based operational water management decisions are compared with those based on expert judgment for the Shipshaw River in Quebec, Canada. Given that no natural streamflow records are available for the Shipshaw River, the HEC-HMS hydrological model is calibrated using a regionalization method based on physical similarity. The calibrated hydrological model is fed by ensemble meteorological forecasts that include 20 members, with a 10-day horizon and a 6-hour time step. The proposed decision-support system can help avoid small flooding events while potentially improving energy production by 2 to 60% for this case study. The proposed forecasting system also allows water-resource managers to anticipate events with a greater lead time.","PeriodicalId":55278,"journal":{"name":"Canadian Water Resources Journal","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2020-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07011784.2020.1834880","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48086250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

A quantitative analysis of drinking water advisories in Saskatchewan Indigenous and rural communities 2012–2016 2012-2016年萨斯喀彻温省土著和农村社区饮用水咨询定量分析

IF 1.7 4区环境科学与生态学

Canadian Water Resources Journal Pub Date : 2020-10-01 DOI: 10.1080/07011784.2020.1831404

Lianne McLeod, Lalita Bharadwaj, Joanna Daigle, C. Waldner, L. Bradford

{"title":"A quantitative analysis of drinking water advisories in Saskatchewan Indigenous and rural communities 2012–2016","authors":"Lianne McLeod, Lalita Bharadwaj, Joanna Daigle, C. Waldner, L. Bradford","doi":"10.1080/07011784.2020.1831404","DOIUrl":"https://doi.org/10.1080/07011784.2020.1831404","url":null,"abstract":"Abstract This study complements the existing literature on disparities associated with Indigenous and non-Indigenous small drinking water systems. The team took a quantitative approach and assessed relationships between seasonality, location, and type of community against the number of drinking water advisories in Saskatchewan for a 4-year period from 2012 to 2016. Generalised estimating equations were used to determine significant factors contributing to the likelihood of drinking water advisories comparing Indigenous to non-Indigenous communities of similar sizes. Results indicated that the season and the interaction between community type and region (north vs. south) were significant in the model for counts of advisories. Reserve communities in the north had a drinking water advisory count that was 5.19 times greater than those of reserves in the south, 2.63 times greater than counts for towns in the south and 4.94 times greater than those of villages in the south. Additional comparisons indicated that reserves in the north had 2.43 times as many advisories as villages in the north, but towns situated in the south part of the province had 1.98 times as many advisories as reserves in the south, and 1.88 times as many advisories as villages in the south. The work confirms heightened risk among northern Indigenous communities and suggests that increased attention to, and investment in, securing water resources is necessary in rural Saskatchewan and globally.","PeriodicalId":55278,"journal":{"name":"Canadian Water Resources Journal","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07011784.2020.1831404","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47618619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Southern Quebec environmental flow assessments: spatial and temporal scales sensitivity 南魁北克环境流量评价:空间和时间尺度敏感性

IF 1.7 4区环境科学与生态学

Canadian Water Resources Journal Pub Date : 2020-10-01 DOI: 10.1080/07011784.2020.1834881

Laureline Berthot, A. St‐Hilaire, D. Caissie, N. El‐Jabi, J. Kirby, Sébastien Ouellet-Proulx

{"title":"Southern Quebec environmental flow assessments: spatial and temporal scales sensitivity","authors":"Laureline Berthot, A. St‐Hilaire, D. Caissie, N. El‐Jabi, J. Kirby, Sébastien Ouellet-Proulx","doi":"10.1080/07011784.2020.1834881","DOIUrl":"https://doi.org/10.1080/07011784.2020.1834881","url":null,"abstract":"Abstract Faced with increasing demands for water withdrawals and a changing climate, the Quebec Department of Environment and Fight Against Climate Change is reviewing its water withdrawal guidelines to protect riverine ecosystems. For Southern Quebec, guidelines currently limit water withdrawals to a maximum of 15% of the 7Q2 (mean 7-day low flow with a return period of two years) during low flow periods. In this context, one of the issues raised is to investigate measures that help to preserve riverine ecosystems during low flow periods by establishing cut-off flow restrictions. This study compared eight low flow metrics to investigate which can be considered useful metrics to assess environmental flow in Southern Quebec rivers. Using 98 hydrometrics stations with a minimum of 20 years of daily flow data from eight hydrological regions, those low flow metrics were compared to three thresholds based on Tennant Method for monthly and annual temporal scales. The relevance of current hydrological regions delineation was investigated by looking at results within these regions, compared to six groups of stations defined using multivariate analyses. This study emphasizes that assessing environmental flows is linked to the hydrological context of the area of interest, the temporal scale of the historical data available, and the catchment size. The results showed that (1) winter low flows were lower than summer low flows; (2) 23% to 26% of the values were under the conservative thresholds for all the metrics depending of the time scale; and (3) the 7Q2, 7Q10 (mean 7-day low flow with a return period of ten years), Q95 and Q90 (95th and 90th percentile on the flow duration curve) are the less conservative for rivers having a low regime flow. To conclude, assessing several regionally adapted environmental flow metrics is recommended rather than systematically using the 7Q2 for Southern Quebec.","PeriodicalId":55278,"journal":{"name":"Canadian Water Resources Journal","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07011784.2020.1834881","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45897686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Automated surface water detection from space: a Canada-wide, open-source, automated, near-real time solution 太空自动地表水探测：加拿大范围内的开源、自动化、近乎实时的解决方案

IF 1.7 4区环境科学与生态学

Canadian Water Resources Journal Pub Date : 2020-09-26 DOI: 10.1080/07011784.2020.1816499

K. Millard, Nicholas Brown, D. Stiff, A. Pietroniro

{"title":"Automated surface water detection from space: a Canada-wide, open-source, automated, near-real time solution","authors":"K. Millard, Nicholas Brown, D. Stiff, A. Pietroniro","doi":"10.1080/07011784.2020.1816499","DOIUrl":"https://doi.org/10.1080/07011784.2020.1816499","url":null,"abstract":"Abstract The goal of this research was to develop a fully automated method to map open water extent that is operationally practical on a national scale. Such a system needs to produce acceptable results in all regions of the country and particularly in the Prairie Potholes Region where understanding water surface dynamics is important for predicting flooding, agriculture/water availability and for evaporation calculations in weather models. A system was developed to automate, ingest, and process Radarsat-2 (RS2) imagery, from which mapping open water body extents in near-real time was carried out using a machine learning classification technique. A Random Forest classification algorithm was trained using the data extracted from the Global Surface Water (GSW) occurrence dataset. The GSW occurrence thresholds used to extract the training data were examined and there was little influence of uncertainty on the classification. The quality of classifications generated from RS2 Fine Wide mode imagery improved with increasing incidence angle. All Fine Quad incident angles produced acceptable results, but Standard and Wide mode imagery produced results below the accuracy thresholds deemed acceptable for this operational solution. Validation was carried out by comparing mapped water extents to temporally coincident high resolution multi-spectral imagery and to the USGS Global Land Cover Characteristics dataset, that is currently used as a land-water mask by ECCC in weather numerical weather modelling. The system that has been developed will allow new image datasets (e.g. Radarsat Constellation Mission) or training data that becomes available to be used to improve models. The open source code will be made available on Github.","PeriodicalId":55278,"journal":{"name":"Canadian Water Resources Journal","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2020-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07011784.2020.1816499","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49333158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Current and future projections of glacier contribution to streamflow in the upper Athabasca River Basin 冰川对上游阿萨巴斯卡河流域水流贡献的当前和未来预测

IF 1.7 4区环境科学与生态学

Canadian Water Resources Journal Pub Date : 2020-09-10 DOI: 10.1080/07011784.2020.1815587

M. Chernos, R. MacDonald, M. Nemeth, J. Craig

{"title":"Current and future projections of glacier contribution to streamflow in the upper Athabasca River Basin","authors":"M. Chernos, R. MacDonald, M. Nemeth, J. Craig","doi":"10.1080/07011784.2020.1815587","DOIUrl":"https://doi.org/10.1080/07011784.2020.1815587","url":null,"abstract":"Abstract The Athabasca River Basin in Alberta, Canada, is of international significance, and understanding water supply is critically important to the sustainability of the region. In the upper Athabasca River Basin, glaciers covered 272 km2 (2.8% of the watershed) as of 2010, but less than 50 km2 are projected to remain by the end of the twenty-first century. This study investigated glacier contributions to streamflow for a baseline (1981–2010) period and two climate change scenarios (RCP 4.5 and RCP 8.5, 2011–2100) using a hydrological model that explicitly accounts for glacier retreat. Simulated discharge from glaciers (i.e. including all glacier ice, firn and snow melt) contributed 4%–6% of annual streamflow and 20%–30% in August during the baseline period. The model projects an increase in glacier discharge in the coming decades with a later decline by the middle of the twenty-first century. Although glacier discharge is projected to increase in the short term, this water source is non-renewable barring a stabilization of air temperatures in the region, something not currently projected by any climate model. While streamflow in the upper Athabasca River Basin was projected to increase on an annual time scale, streamflow during the late-summer months was projected to decrease by up to 58% by 2100. These simulations follow findings from across western Canada and globally, highlighting that ‘peak water’ is not solely driven by changes in glacier discharge and is also responsive to changes in climate. Late summer is a period when water demands are the highest, water shortages already occur, water quality is the most sensitive and the ability to navigate throughout watercourses in the basin is limited. These findings emphasize the importance of changes in streamflow timing and seasonality and present major challenges for water management in the Athabasca River Basin and elsewhere in glacierized catchments over the coming decades.","PeriodicalId":55278,"journal":{"name":"Canadian Water Resources Journal","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07011784.2020.1815587","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42305246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Structural calibration of an semi-distributed hydrological model of the Liard River basin 利亚德河流域半分布式水文模型的结构定标

IF 1.7 4区环境科学与生态学

Canadian Water Resources Journal Pub Date : 2020-08-24 DOI: 10.1080/07011784.2020.1803143

Genevieve Brown, J. Craig

{"title":"Structural calibration of an semi-distributed hydrological model of the Liard River basin","authors":"Genevieve Brown, J. Craig","doi":"10.1080/07011784.2020.1803143","DOIUrl":"https://doi.org/10.1080/07011784.2020.1803143","url":null,"abstract":"Abstract The development of hydrological models that produce practically useful and physically defensible results is an ongoing challenge in hydrology. This challenge is further compounded in large, spatially variable basins with sparse data, where a detailed understanding of a basin’s hydrological response may be limited. This study presents an iterative and stepwise calibration strategy for model structure and parameters for a hydrological model of the 275,000 km2 Liard River basin in northern Canada. The calibration procedure was optimized to exploit and represent available data at 29 stream gauges and included the use of multiple data sources to constrain model calibration and improve model function. A flexible modelling framework was used to allow the explicit inclusion of locally varied model structure within the calibration procedure. The final model exhibits strong performance in both calibration and validation, and represents significantly different hydrological responses in different portions of the basin well. The calibration procedure helped to identify differences in hydrological processes within the basin which have not been considered by other models of the Liard. The ability to modify model structure in order to account for different hydrological regimes in different parts of the basin is demonstrated to improve model performance locally and globally.","PeriodicalId":55278,"journal":{"name":"Canadian Water Resources Journal","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2020-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07011784.2020.1803143","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45229104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6