yukon river discharge

Table2. Yukon River Discharge Response to Seasonal Snow Cover ... The total drainage area is 833,000 km 2 (321,500 sq mi), of which 323,800 km 2 (125,000 sq mi) lies in Canada. --- Predefined displays ---. About 5.6% of the drainage area of the Tanana River, Alaska, is covered by mountainous glacierized regions, and most of the other area by forests (51%) and wetlands (9%) with discontinuous permafrost. Download PDF. The NDVI trends during the growing season from May to September almost inversely correspond to discharge changes with a . Satellite Remote Sensing Estimation of River Discharge ... Most of the drainage from Yukon makes its way into the river via underground pipes, concrete channels, ditches and open creek beds. Characteristics of sediment discharge in the subarctic ... About 11% of the global river discharge is accounted for by the discharge from the arctic river basins of the Ob, Yenisei, Lena, and Mackenzie Rivers, with spacious permafrost regions (Lam-mers et al., 2001). 5.3 River regimes Flashcards | Quizlet Stormwater - City of Yukon Abstract: The paper presents two approaches used independently to estimate river discharge during an ice jam on the Yukon River near Dawson City. Above — Distance frommouth. All rivers with average discharge more than 15,000 cubic feet per second are listed. Water Level, Temperature, and Discharge of Headwater ... Although the Yukon River has a history of pollution from gold mining, military activities, unregulated dumps, and wastewater discharges recent environmental studies describe a relatively intact ecosystem. 62.5 ? Fig. Relationship between passive microwave ... - Academia.edu Yukon River streamflow response to seasonal snow cover ... 5 Pages. The Yukon River is a major watercourse of northwestern North America.. 62.5 ? Similarly, δ18O (and δ2H) values showed seasonal variations, tending to be most negative during the period of peak discharge in late spring and . The characteristics of sediment discharge in the Yukon River, Alaska were investigated by monitoring water discharge, water turbidity and water temperature. YUKON TERRITORY FLOW CONDITIONS AND OUTLOOK River discharge went from above average winter flow to below average flow for this time of year in many rivers as the cold spring delayed the initiation of snowmelt, especially at higher elevations. It is the 5 th largest Arctic river by annual discharge and the 22 nd largest globally. River Discharge - Arctic Program ALASKAN STREAMS SOUTH OF THE YUKON RIVER By William W. Emmett ABSTRACT Channel geometry surveys were conducted to determine bankfull stage, discharge, and other hydraulic parameters at 22 Locations along the proposed route of the trans-Alaska pipeline corridor south of the Yukon River. The significant decrease about 8-15% of the average flow, but a significant increase with a trend above 34.2% occurred in May. There is no filtration in this system. Any jam not classified as a freezeup jam was classified as a breakup jam. 68CONTEIBUTIONSTOHYDROLOGYOFUNITEDSTATES,1914. Geophysical Research Letters, 2005. Near its mouth, the Yukon River transports about 60 million tons of suspended sediment toward the Bering Sea annually. Water-Resour Investig Rep 99-4204:106 Google Scholar Brodzik MJ, Knowles KW (2002) EASE-grid: a versatile set of equal-area projections and grids. In high-latitude rivers (Amur, Lena, MacKenzie, Ob, Yenisei, and Yukon), the discharge increases, and the peak timing This is a list of rivers in the continental United States by average discharge (streamflow) in cubic feet per second. A decrease in discharge-normalized DOC export by the Yukon River during summer through autumn. Two major tributaries that drain glacier areas of the Yukon River, the Tanana River and the White River, account for 29 percent of the flow of the Yukon River but only account for about 20 percent of the drainage area. In this study, associated with river discharge to the ocean [7,8], the water turbidity and temperature of the Yukon 1 The Yukon River watershed and location of the Pilot station near the basin outlet (USGS, 2001). Combined with Streamflow characteristics in the Yukon River Basin of Alaska and Canada have changed from 1944 to 2005, and some of the change can be attributed to the two most recent modes of the Pacific Decadal Oscillation (PDO). Most of the drainage from Yukon makes its way into the river via underground pipes, concrete channels, ditches and open creek beds. Capitalizing on existing USGS monitoring and research infrastructure and supplementing USGS col 2500 kg/s, the plume partially plunged into the sea bottom layer. In 2020, the combined annual discharge of the eight largest Arctic rivers was 2623 km 3, which was 272 km 3 or ~12% greater than the 30-year average. For more information, contact Jeff Conaway <jconaway@usgs.gov>, Alaska Science Center. Fairbanks. The vast majority of the watershed is underlain by permafrost, 23% of which is classified as continuous. At the high river sediment load of ca. The turbidity monitoring has been conducted in streams as one of their water qua- lities [6], but few in large rivers such as the Yukon River. Liard, Teslin, Pelly, Lower Yukon (Dawson area) and Stewart River Basins. Social Sharing 'When we actually discharge, it's very high quality water,' says city manager The mean annual temperature for this period is 23.7° F. Survey Water-Supply Papers 1486, 1500, Groundwater currently comprises almost one fourth of Yukon River water discharged to the Bering Sea and contributes 5-10% of the dissolved organic carbon (DOC) and nitrogen (DON) and 35-45% of the dissolved inorganic carbon (DIC) and nitrogen (DIN) loads. Brabets T, Wang B, Meade R (2000) Environmental and hydrologic overview of the Yukon river basin, Alaska and Canada, USGS. The estimates of discharge, flow depth, and flow velocity are derived from remotely observed water surface area, water surface slope, and water surface height, and demonstrated for two reaches of the Yukon River in Alaska, at Eagle (reach length 34.7 km) and near Stevens Village (reach length 38.3 km). In partnership with the provinces, territories and other agencies, the Water Survey of Canada (WSC) operates a network of over . At the high river sediment load of ca. T he average annual discharge of the Yukon River near its mouth is 227,000 cubic ft/s. Evidence of increasing arctic river discharge has been reported in several recent publications, with changes most evident during the low-flow period from November through April (7,9-11).However, analyses of trends have emphasized different time periods and areas of the Arctic ().Thus, it has been difficult to generalize about temporal trends in discharge to the Arctic Ocean. Yukon The Yukon River has a mean annual discharge of 208 km 3 /year. This increase is greater than the annual average discharge of the Yukon River. 3000 kg/s, the plume partially plunged into the sea bottom layer. 3.1. The Yukon River empties into the Bering Sea. Estimates are approximate, because data are variable with time period measured and also because many rivers lack a gauging station near their point of outflow. In a crossflow, the theory predicts that the plume will follow an x exp 1/3 trajectory where x is distance alongshore, and that the plume temperature will decay according to x exp - 1/6 due to mixing with the receiving water. The average flow is 6,400-7,000 m 3 /s (230,000-250,000 cu ft/s). Mackenzie River heat transport peaks in July, while the Yukon HF reaches the maximum in June and July. In the 831,400 km 2 Yukon River basin, water discharge (Q) corrected DOC export significantly decreased during the growing season from 1978-80 to 2001-03, indicating a major shift in terrestrial to aquatic C transfer. To reduce model bias and uncertainty, a weighted ensemble mean (WEM) is used for multimodel projections. The name Yukon is derived from the Gwich'in language and means "great river.". The Indigenous Observation Network (ION), a community-based project, was initiated by the Yukon River Inter-Tribal Watershed Council and USGS. rivers that cross more than one type of catchment which results in more than one factor influencing the pattern of discharge (e.g. Although the annual mean discharge of the Yukon River near its mouth is more than 200,000 cubic feet per second, most of the flow occurs in the summer months from snowmelt, rainfall, and glacial melt. About Yukon's Stormwater Department. The source of the river is located in the northwest corner of British Columbia from which it proceeds to flow through Yukon Territory into Alaska and empties into the Bering Sea at the Yukon-Kuskokwim Delta. The river-transported sediment, 90 wt.% or more, consists of silt and clay (grain size ??? The estimates of discharge, flow depth, and flow velocity are derived from remotely observed water surface area, water surface slope, and water surface height, and demonstrated for two reaches of the Yukon River in Alaska, at Eagle and Stevens Village. the annual variation in the discharge of a river at a particular point, measured in cumecs. Mean, Variability, and Trends in River Discharge [9] Table 1 provides the mean annual total river discharge rates in the 5 regional basins of northern Canada for 1964- 2003. PROVISIONAL DATA SUBJECT TO REVISION. During continuous measure-ments of the Yukon River discharge and sediment load, behaviors of the sediment plumes were explored by shipboard observations in the Bering Sea offshore from the Yukon delta. This expansive area includes the active (prograding) delta of the Yukon River from the mouth of the Apoon River west and south to Dall Point. ?m), which probably originated in the glacier-covered mountains mostly in the Alaska Range. The hydrology of the Yukon River Basin has changed over the last several decades as evidenced by a variety of discharge, gravimetric, and geochemical analyses. The water discharge and sediment load from glacierized and non-glacierized regions within the drainage area were represented by observed data of the proglacial Phelan Creek and the non-glacial . However, most of the flow occurs from May through September. The river is 1,982 miles long, and has a basin of 330,002 square miles. Yukon River discharge reflects a snowmelt-driven hydrology, with lowest flows in early spring, a rapid increase to peak flow generally occurring in June, followed by declining flows into the fall. Twelve years of contin- uous discharge records are available for the Yukon River at Rampart (U.S. Geol. Although it is . Information on the day-of-year was used to classify the jam formation as progressive (Yukon), semi-progressive (Platte) or non-progressive (Connecticut). The monthly temperature and precipitation data from five stations within (and closest to) the Yukon River basin have an overlapping time period (1977-2006) with discharge data. One method entailed the use of large-scale particle. Water Level, Temperature, and Discharge of Headwater Streams in the Yukon River Basin, Alaska, 2016 and 2017 August 5, 2020 View Data Release This data set includes 15-minute interval data on stream temperature, stage, and discharge from low-order streams in the Yukon River Basin in interior Alaska, collected during the summer months. The subarctic Yukon river basin in Alaska is characterized by vast discontinuous permafrost regions and mountainous glacierized regions. Abstract This study investigates the projections of river discharge for 24 major rivers in the world during the twenty-first century simulated by 19 coupled atmosphere-ocean general circulation models based on the Special Report on Emissions Scenarios A1B scenario. Yukon is situated in the North Canadian River drainage basin. Climate warming is having a dramatic effect on the vegetation distribution and carbon cycling of terrestrial subarctic and arctic ecosystems. About 11% of the global river discharge is accounted for by the discharge from the arctic river basins of the Ob, Yenisei, Lena, and Mackenzie Rivers, with spacious permafrost regions (Lam-mers et al., 2001). Discharge from the two North American rivers combined was 630 km 3, ~28% greater than their 1981-2010 average. Note the different scales for the Eurasian and North American river discharge; discharge from the former is 3-4 times greater than it is from the latter. K. A. Semmens, J. M. Ramage, Longer spring snowmelt: spatial and temporal variations of snowmelt trends detected by passive microwave from 1988 to 2010 in the Yukon River Basin, The Cryosphere Discussions, 10.5194/tcd-6-715-2012, 6, 1, (715-735), (2012). Yukon is situated in the North Canadian River drainage basin. About Yukon's Stormwater Department. The character of a river's regime is influenced by a number of variable factors: the size of the river and where discharge measurements are taken along its course The Yukon River has low flows in winter and high discharge in summer, with the peak At the basin scale, we found the upstream/middle regions of the Yukon and Mackenzie River basins (e.g., Canadian Shield) had a noticeable decrease in annual discharge, while the rivers draining . DrainageareasofYukonRiver. In the 831,400 km2 Yukon River basin, water discharge (Q) corrected DOC export . The estimates of discharge, flow depth, and flow velocity are derived from remotely observed water surface area, water surface slope, and water surface height, and demonstrated for two reaches of the Yukon River in Alaska, at Eagle (reach length 34.7 km) and near Stevens Village (reach length 38.3 km). Here, we collected DOM samples along a salinity gradient in the Yukon River delta, plume and coastal ocean during peak river discharge immediately after spring freshet and explored the role of UV . The Yukon River flows from northwestern Canada through interior Alaska into the Bering Sea, draining an area of ~855,000 km 2. In this study, the contribution of snowmelt runoff to the discharge and sediment load is quantified by monitoring water turbidity and temperature at the lowest gauging station of U. S. Geological Survey in the Yukon River, Alaska, for more than 3 years (June 2006 to September 2009). Here, we present hydrologic evidence that warming is also affecting the export of dissolved organic carbon and bicarbonate (DOC and HCO3−) at the large basin scale. River discharge in SE Australia has previously been shown to be strongly influenced by ENSO cycles. The characteristics of sediment discharge in the Yukon River, Alaska were investigated by monitoring water discharge, water turbidity and water temperature. Discharge from streams and rivers in the Yukon River Basin varies depending on the presence of glaciers. Seasonal, monthly, and annual stream discharge data from 21 stations in the Yukon River Basin were analyzed for trends over the entire period of record, generally spanning 4-6 . The total area is more than 25% larger than Texas or . Download Full PDF Package. precipitation and runoff tends to coincide with that in the river discharge, it should be emphasized that the change in runoff at the upstream region affects the river flow in the downstream region. Yukon River Drainage Area - National hydrometric network basin polygons This dataset consists of a set of polygons that represent the drainage areas of active discharge stations within the Yukon River Drainage Area. Introduction Build Custom Table WaterWatch (offsite) WaterQualityWatch (offsite) GroundwaterWatch (offsite) Alaska Streamflow . Drainage area. This discharge increment could cause the sediment load increment. The subarctic Yukon river basin in Alaska is characterized by vast discontinuous permafrost regions and mountainous glacierized regions. The nearest stream-gaging station on the Yukon River was located at Rampart about 55 river miles (88 km) down- stream from the proposed crossing.

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