yukon river discharge

The subarctic Yukon river basin in Alaska is characterized by vast discontinuous permafrost regions and mountainous glacierized regions. 3000 kg/s, the plume partially plunged into the sea bottom layer. 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). PDF The Discharge of Yukon River at Eagle, Alasi(A Fairbanks. A decrease in discharge-normalized DOC export by the Yukon ... Eight major rivers flow into the Yukon River. the annual variation in the discharge of a river at a particular point, measured in cumecs. River discharge decreased during growing season except in May from 1982 to 2013 in Yukon Basin. The river is 1,982 miles long, and has a basin of 330,002 square miles. PDF Yukon River Basin Streamflow Forecasting System 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. 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 . 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 . At the high river sediment load of ca. All rivers with average discharge more than 15,000 cubic feet per second are listed. There is no filtration in this system. USGS Current Conditions for USGS 15356000 YUKON R AT EAGLE AK Glacial Effects on Discharge and Sediment Load in ... - BIOONE The vast majority of the watershed is underlain by permafrost, 23% of which is classified as continuous. This system is called a Municipal Separate Storm System or MS4. Mark Dornblaser. Amazon/Yukon/Murray Darling) 6 factors affecting river regimes?-precipitation-temperatures-vegetation cover DrainageareasofYukonRiver. Table2. Liard, Teslin, Pelly, Lower Yukon (Dawson area) and Stewart River Basins. 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). The Yukon River flows from northwestern Canada through interior Alaska into the Bering Sea, draining an area of ~855,000 km 2. Abstract: The paper presents two approaches used independently to estimate river discharge during an ice jam on the Yukon River near Dawson City. Introduction Build Custom Table WaterWatch (offsite) WaterQualityWatch (offsite) GroundwaterWatch (offsite) Alaska Streamflow . To reduce model bias and uncertainty, a weighted ensemble mean (WEM) is used for multimodel projections. The Tanana River drains the north side of the glaciated Alaska Range, with a ~115,000 km 2 basin underlain by discontinuous permafrost. For more information, contact Jeff Conaway <jconaway@usgs.gov>, Alaska Science Center. Surveys of the day-of-year and discharge for each ice jam location along the entire length of each river are presented. 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 . However, most of the flow occurs from May through September. Yukon The Yukon River has a mean annual discharge of 208 km 3 /year. This system is called a Municipal Separate Storm System or MS4. This paper. 62.5 ? A decrease in discharge-normalized DOC export by the Yukon River during summer through autumn. The subarctic Yukon river basin in Alaska is characterized by vast discontinuous permafrost regions and mountainous glacierized regions. Largest Rivers USA by Volume Rank River Mouth Average Daily State Discharge in cfs 1 Misissippi Louisiana 593,000 2 St. Lawrence Canada 348,000 3 Ohio Illinois/Kentucky 281,000 4 Columbia Oregon/Washington 265,000 5 Yukon Alaska 225,000 6 Missouri Missouri 76,200 7 Tennessee Kentucky 68,000 8 Mobile Alabama 67,200 9 Kuskokwin Alaska 67,000. 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. It includes over 1,000 km of shoreline and encompasses three prominent physiographic regions: 1) the deltaic system fromed by the discharge of the main tributaries of the Yukon River, 2) a long segment of coastal graminoid meadow and non-vegetated . The Yukon River Basin is one of the main rivers in the Arctic region of North America and is shared . Discharge from streams and rivers in the Yukon River Basin varies depending on the presence of glaciers. 62.5 ? 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). The Yukon River Basin streamflow forecasting system is based . In partnership with the provinces, territories and other agencies, the Water Survey of Canada (WSC) operates a network of over . 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). --- Predefined displays ---. Of these basins, Eastern Hudson Bay receives the greatest influx of freshwater on an annual basis (385 km3), followed by the Arctic Ocean (361 km3)andWestern It defines the seasonal cycles of discharge, water temperature (WT), and heat flux (HF) for the basin. 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. The North American rivers are the Yukon and Mackenzie. This represents a land area of approximately 21 million km 2. 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. Dawson,YukonTerritory Eagle,Alaska . Above — Distance frommouth. 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. Climate warming is having a dramatic effect on the vegetation distribution and carbon cycling of terrestrial subarctic and arctic ecosystems. Discharge from the two North American rivers combined was 630 km 3, ~28% greater than their 1981-2010 average. Similarly, δ18O (and δ2H) values showed seasonal variations, tending to be most negative during the period of peak discharge in late spring and . 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. The river-transported sediment, 90 wt.% or more, consists of silt and clay (grain size ??? 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. 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. At the high river sediment load of ca. rivers that cross more than one type of catchment which results in more than one factor influencing the pattern of discharge (e.g. The mean annual temperature for this period is 23.7° F. 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. The Yukon River is a major watercourse of northwestern North America.. 3.1. Meanwhile, total annual discharge to the Arctic Ocean increased at 5.6 km 3 year −2 during 1964-2000 (McClelland et al., 2006), and annual discharge from the Yukon river basin increased by 7% for 1977-2007 (Overeem and Syvitski, 2010). (Yukon, Amazon, Indus) A river regime is the annual variation in the discharge or flow of a river at a particular point, and is usually measured in cumecs. Geophysical Research Letters, 2005. 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. Mackenzie River heat transport peaks in July, while the Yukon HF reaches the maximum in June and July. Download PDF. The Chandalar River drains the south side of the Brooks Range. Social Sharing 'When we actually discharge, it's very high quality water,' says city manager A decrease in discharge-normalized DOC export by the Yukon River during summer through autumn. In the 831,400 km2 Yukon River basin, water discharge (Q) corrected DOC export . 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. The name Yukon is derived from the Gwich'in language and means "great river.". 5 Pages. 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. Discharge analyses at four key gauging stations (Eagle, Stevens Village, Nenana, and Pilot Station) in the Yukon River Basin show that the runoff in the cold season (November to April) is low with small variations, whereas it is high (28 500-177 000 ft 3 /s; 810-5000 m 3 /s) with high fluctuations in the warm season (May to October). The Yukon's watershed area is 0.83 million km 2. Yukon River discharge has been onset at higher trending to rates, earlier (Dornblaser and Streigl, 2007; Streigl et al., 2007) and fires in Alaska have increased as a wild result (Westerling et al., 2006).Increased runoff delivers more sediment and trace associated metals and hydrocarbons to the Chukchi Sea.Increased fire activity leads to high . The state says the . ASTORIA, Ore. (AP) — Da Yang Seafood has been fined $105,000 by the Oregon Department of Environmental Quality for improperly discharging wastewater into the Columbia River. 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 Yukon River empties into the Bering Sea. 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. The total area is more than 25% larger than Texas or . 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. Article Behaviors of the Yukon River Sediment Plume in the Bering Sea: Relations to Glacier-Melt Discharge and Sediment Load Kazuhisa A. Chikita 1,*, Tomoyuki Wada 2, Isao Kudo 3, Sei-Ichi Saitoh 1, Toru Hirawake 4 and Mitsuhiro Toratani 5 1 Arctic Research Center, Hokkaido University, Sapporo, 001-0021 Japan; ssaitoh@arc.hokudai.ac.jp (S.S.) 2 Earth System Science, Co., Ltd., Tokyo 160 -0022 . 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. However, interannual variability in the Yukon River discharge was only 12%, suggesting that Yukon River DBC export is particularly sensitive to discharge variation. Twelve years of contin- uous discharge records are available for the Yukon River at Rampart (U.S. Geol. 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. 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. Although it is . Yukon is situated in the North Canadian River drainage basin. The NDVI trends during the growing season from May to September almost inversely correspond to discharge changes with a . 2500 kg/s, the plume partially plunged into the sea bottom layer. Survey Water-Supply Papers 1486, 1500, Fig. 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). The average annual DBC load for the six rivers was 1.5 ± 0.1 million tons per year (Table 2). Yukon River monthly HF is lower by 10-60% than the Mackenzie mainly due to smaller discharge. Brabets T, Wang B, Meade R (2000) Environmental and hydrologic overview of the Yukon river basin, Alaska and Canada, USGS. The subarctic Yukon river basin in Alaska is characterized by vast discontinuous permafrost regions and mountainous glacierized regions. 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. 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. Capitalizing on existing USGS monitoring and research infrastructure and supplementing USGS col Every fall, the City of Whitehorse releases a year's worth of wastewater into the Yukon River. PROVISIONAL DATA SUBJECT TO REVISION. The river-transported sediment, 90 wt.% or more, consists of silt and clay (grain size ??? The Yukon River is a major watercourse of northwestern North America.. Any jam not classified as a freezeup jam was classified as a breakup jam. 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 characteristics of sediment discharge in the Yukon River, Alaska were investigated by monitoring water discharge, water turbidity and water temperature. 1 The Yukon River watershed and location of the Pilot station near the basin outlet (USGS, 2001). The average flow is 6,400-7,000 m 3 /s (230,000-250,000 cu ft/s). 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 streams and rivers in the Yukon River Basin varies depending on the presence of glaciers. 68CONTEIBUTIONSTOHYDROLOGYOFUNITEDSTATES,1914. set up, calibrate, validated d, and operationalized a streamflow discharge forecasting system for the Yukon River and several of its tributary rivers within the Yukon Territory. Most of the drainage from Yukon makes its way into the river via underground pipes, concrete channels, ditches and open creek beds. Near its mouth, the Yukon River transports about 60 million tons of suspended sediment toward the Bering Sea annually. The horizontal lines show long-term mean discharge values for the Eurasian (1,809 km 3 y -1) and North American (493 km 3 y -1) rivers. 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 river is 3,190 kilometres (1,980 mi) long and empties into the Bering Sea at the Yukon-Kuskokwim Delta. The characteristics of sediment discharge in the Yukon River, Alaska were investigated by monitoring water discharge, water turbidity and water temperature. 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. 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. 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. Download Full PDF Package. The pan-Arctic drainage system encompasses all terrestrial land area draining into the Arctic Ocean as well as the land mass draining into Hudson Bay, James Bay in Canada and the northern Bering Sea which includes the Yukon River in Alaska and the Anadyr River in Russia. 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. It is the 5 th largest Arctic river by annual discharge and the 22 nd largest globally. 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. 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). Current Conditions for Alaska: Streamflow -- 111 site (s) found. Drainage area. The Indigenous Observation Network (ION), a community-based project, was initiated by the Yukon River Inter-Tribal Watershed Council and USGS. vveather Bureau records for 1905 to 19127 are shown in Table 3. Annual discharge-gauging records covering about a century for each of five rivers in this region (Darling (log Q), Lachlan, Loddon, Upper Murray, and Murrumbidgee) have signifi- cant correlation (r 2 -- 0.14 to 0.24) with SOI [Whetton and . Abstract This paper analyses long-term discharge and water temperature records collected near the basin outlet of the Yukon River. ?m), which probably originated in the glacier-covered mountains mostly in the Alaska Range. There is no filtration in this system. The name Yukon is derived from the Gwich'in language and means "great river.". River discharge in SE Australia has previously been shown to be strongly influenced by ENSO cycles. In high-latitude rivers (Amur, Lena, MacKenzie, Ob, Yenisei, and Yukon), the discharge increases, and the peak timing Combined with Climate change and the effects from thawing permafrost and glacial runoff are the main stressors to the Yukon River (Richter-Menge, et al . . 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. 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. 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. This discharge increment could cause the sediment load increment. Information on the day-of-year was used to classify the jam formation as progressive (Yukon), semi-progressive (Platte) or non-progressive (Connecticut). About Yukon's Stormwater Department. In this study, associated with river discharge to the ocean [7,8], the water turbidity and temperature of the Yukon Hydrologic dataHydrologic records of surface measured discharge for parts of the Yukon River exist for the period of satellite record (USGS, 2005;Environment Canada, 2005) and are used in conjunction with field observations and satellite data to differentiate snowmelt from other events and to correlate the source, lag time, and (Table II) comes . Yukon is situated in the North Canadian River drainage basin. The significant decrease about 8-15% of the average flow, but a significant increase with a trend above 34.2% occurred in May. 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. Thermal infrared satellite imagery of the discharge from the Yukon River obtained on July 5, 1985 was compared with hydraulic theory for the dilution of buoyant surface jets. This is a list of rivers in the continental United States by average discharge (streamflow) in cubic feet per second. Daily discharge, cubic feet per second -- statistics for Jan 5 based on 71 water years of record more; Most Recent Instantaneous Value Jan 5 Min (1951) 25th percen-tile Mean Median 75th percen-tile Max (2016)-- unavailable --9000: 20000: 23300: 24000: 27000: 35000 This increase is greater than the annual average discharge of the Yukon River. 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. About Yukon's Stormwater Department. ?m), which probably originated in the glacier-covered mountains mostly in the Alaska Range. T he average annual discharge of the Yukon River near its mouth is 227,000 cubic ft/s. 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). 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). During continuous measurements of the Yukon River discharge and sediment load, behaviors of the sediment plumes were explored by shipboard and coastal observations in the Bering Sea. Most of the drainage from Yukon makes its way into the river via underground pipes, concrete channels, ditches and open creek beds. 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 Yukon River has low flows in winter and high discharge in summer, with the peak 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 . glacier shrinkage may significantly decrease the Yukon discharge as a water resource. VwAFlLl, jQM, nRA, mtLqXuB, NXJoHYL, KwkxOST, tTuBeMu, uIa, uuYJABV, wHvL, cIKwvlR,

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