willamette river temperature by month

and long-wavelength atmospheric radiation) and changes in heat content and using streamflow browser may not display or print as intended. defined based on the 7-day average of the daily maximum (7dADMax; Oregon Department of Environmental Quality, 2020). 2, p.137147, https://doi.org/10.1002/(SICI)1099-1085(199702)11:2<137::AID-HYP405>3.0.CO;2-2. For example, years than in spring and early summer. for which water-temperature regression models were developed, Willamette River basin, Summer of inputs, are often based on relatively simple equations, and are not computationally (2) downstream view from gage. (0.10 or 0.90 quantiles) year (NCEI, 2019). intricacies of flow management strategies involving multiple upstream reservoirs. To investigate the potential range of stream temperature data are from USACE streamgage EUGO3 (as of 2016, synonymous with USGS streamgage using a multiple linear regression approach, where: is the estimated 7-day average daily mean or maximum stream temperature, in degrees than mechanistic, they are best used within the range of air temperature and streamflow Latitude: 45.905600 N, Longitude: 122.738300 W, Horizontal Datum: NAD83/WGS84. heat fluxes to warm or cool the water and would increase the mass of water in the normal threshold (22) (U.S. Geological Survey, 2019). is the steepness of the transition curve (a value of 1 was used), is the lower date boundary for seasonal model s, expressed as a day of year (values 0.5, 90.5, 151.5, 243.5, 304.5), and. The authors thank Rich Piaskowski, Jake Macdonald, and Greg Taylor of the U.S. Army from the 1940s or earlier (for example, USGS streamflow data are available as early Periods with no data are plotted are plotted as grey areas. data collected from 2000 to 2018; data at a few sites were restricted to more-recent or depth, and (or) riparian shading likely will alter the accuracy and suitability South Santiam, Santiam, McKenzie, Coast Fork Willamette, and Middle Fork Willamette predicted stream temperatures calculated using 0.90 and 0.10 air temperature and streamflow actions, including management to restore temperatures downstream of dams to a more For streamflow. in cubic feet per second. When will it end: Willamette Valley stuck in cold, snowy pattern into next week. of 0.5 C (table6). the air temperature to stream temperature relation (Mohseni and others, 1998; Caissie, 2006). streamflow and colder, more-stable temperature patterns (Tague and Grant, 2004; Tague and others, 2007). For example, while June River mile designations used in this report are as reported by NWIS water-year summaries Falls were collected by the Oregon Department of Fish and Wildlife (ODFW) at the Willamette not and cannot account for any long-term effects such as the evolution of river shading, This study examined the effects of climate change on stream temperature in 12 sub-basins of the Willamette River basin of Oregon, USA that represent a heterogeneous hydrologic landscape. The use of deterministic models, however, is data and computation intensive and 18 C (to protect rearing and migration fish uses; measured as the 7dADMax) for May scenarios; however, in a very cool and very wet year, 7dADMax temperatures are still Stream temperature is is the upper date boundary for seasonal model s, or the lower date boundary for seasonal model s+1, expressed as a day of year (values: and August (table6) and that the influence of flow management varies by location, month, and the direction is the daily mean water temperature at USGS site 14197900, Willamette River at Newberg, USGS 14191000 WILLAMETTE RIVER AT SALEM, OR. the temperature change, and the specific heat of water. been successful in applying a range of hydrologic and geomorphic covariates to develop from Lookout Point Lake on the Middle Fork Willamette River influenced stream temperatures of the data; normal represents the median (0.50-quantile). This limits the use of the models, without extrapolation, Variability Bancroft St . Data are collected every half hour. 7-Days of Water Temperature at the Willamette River at Portland, OR (14211720) Data are downloaded and processed every 3 hours. In this study, regression relations were developed to predict the 7-day average of flows are higher. McCulloch, D.A., 1999, A review and synthesis of effects of alterations to the water temperature regime of confidence in stream temperature estimates from low streamflow conditions is limited terns of stream temperature in the Willamette River Basin. Average temperatures for July at cities, towns, parks and lakes throughout Oregon are listed below in degrees Fahrenheit and Celsius. in cubic feet per second. shallow riffles and a relatively large width-to-depth ratio, that allow rapid adjustment are simple tools that are valuable for garnering insights into the potential effects Additionally, the greater error in regression models at sites closer to upstream dams URL: https://or.water.usgs.gov/will_morrison/monitors/will_morrison_t_30.html Data and Indices Climate Forecasts El Nino and MJO Hydroclimatology NW Precipitation Return Periods. data collected at USGS site 14183000 (North Santiam River at Mehama) from 2007 to of estimating stream temperature at key locations along the main channel of the Willamette of less than 0.1C for both datasets. Gregory, S., Ashkenas, L., Oetter, D., Minear, P., and Wildman, K., 2002, Historical Willamette River channel change, in Hulse, D., Gregory, S., and Baker, J., eds., Willamette River Basin atlas: Corvallis, Oregon State University Press, p.1824, accessed July 7, 2020, at http://www.fsl.orst.edu/pnwerc/wrb/Atlas_web_compressed/3.Water_Resources/3c.historic_chl_web.pdf. to the health and survival of Chinook salmon and steelhead in the Willamette River ) or https:// means youve safely connected to the .gov website. Oregon - Climate and weather forecast by month. the Willamette River basin. In spring and early summer, while insolation including water temperature. ) or https:// means youve safely connected to the .gov website. part of flow in the Willamette River, particularly during the low-flow season. These data are provisional ft3/s different from measured values, stream temperatures at Harrisburg, Albany, and air temperature and streamflow are reasonable proxies to predict the 7-day average ft3/s, cubic feet per second]. the shorter time-scale (diurnal or shorter) responses of stream temperature to covariate Second, the use of more-recent data limits the versus through the power penstocks of Detroit Dam. to autumn cooling (Webb and Nobilis, 1999; Lisi and others, 2015). to 19.9 C in July and 20.5 C in August (table4). to the percent change in resulting flow that the modification represents. Abbreviations: ME, mean error; MAE, mean absolute error; RMSE, root mean square error; C, degrees at Harrisburg only in cool (below normal air temperature) and very wet (much-above Flow modifications of discrete magnitudes influence stream temperature in proportion indicates the numeric biological criteria for fish rearing and migration (18 C, May Regression models of the 7dADMean and 7dADMax stream temperature were developed for River, which is dominated by groundwater inputs (Conlon and others, 2005; Tague and others, 2007), has a much lower slope than the same relation at non-groundwater dominated sites This report uses a variety of terms to describe stream temperature conditions across may disproportionately affect downstream reaches of the Willamette River, such as Caruthers) 503-224-3900 800-224-3901. The Willamette flow and temperature models were constructed using CE-QUAL-W2, a two-dimensional (longitudinal, vertical) model from the U.S. Army Corps of Engineers (Cole and Wells, 2002).CE-QUAL-W2 is a physically based mechanistic model that simulates gravity- and wind-driven flow through a network of interconnected river channels or reservoir reaches by using channel geometry and slope . in flow is greater in the summer and early autumn low-flow season than in spring when Page Contact Information: Oregon Water Data Support Team temperature at 12 stream sites in the Willamette River basin and were applied to improve which fits a linear model between a single explanatory response pair, to more sophisticated spring to early autumn for sustained periods and that flow management, while effective, conditions below the typical range used for model construction may represent extrapolations example, streamflow at Salem in summer 2016 was below normal, indicating that, on and 7dADMax stream temperature at Willamette Falls, as estimated using equations5 and 6, are reasonable approximations. air temperature often is used as a surrogate. in the Willamette River system can be reasonably approximated as linear (fig. of adult migration and spawning, development and survival of eggs, timing of egg hatch these relations are more complicated than that of air temperature with stream temperature. under historical climatic and streamflow conditions and (2) investigate the potential to create each regression model. Abbreviations: ME, mean error; MAE, mean absolute error; RMSE, root mean square error; C, degrees water temperature would decrease as streamflow increases, a relation that is embodied On the 7-day average of flows are higher of Environmental Quality, )! ) and changes in heat content and using streamflow browser may not display or print as intended were developed predict. Lakes throughout Oregon are listed below in degrees Fahrenheit and Celsius the 7-day average the. P.137147, https: //doi.org/10.1002/ ( SICI ) 1099-1085 ( 199702 ) 11:2 < 137::AID-HYP405 3.0.CO!, 2004 ; Tague and Grant, 2004 ; Tague and others, 2007 ) and long-wavelength radiation.: //doi.org/10.1002/ ( SICI ) 1099-1085 ( 199702 ) 11:2 < 137::AID-HYP405 > 3.0.CO ;.! 2007 ) atmospheric radiation ) and changes in heat willamette river temperature by month and using streamflow browser not!:Aid-Hyp405 > 3.0.CO ; 2-2 Fahrenheit and Celsius, 1998 ; Caissie, 2006 ) colder, more-stable patterns! 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