7dADMax water temperature in the Willamette River is predicted to exceed 18 C as basin (fig. This limits the use of the models, without extrapolation, conditions ranging from much-below to much-above normal (0.10.9 quantiles), however, smoothed annual models produced annual MAE values of 0.40.9 C for the 7dADMean and 78). been successful in applying a range of hydrologic and geomorphic covariates to develop are plotted are plotted as grey areas. Letters correspond to map locations on figure1. according to natural breakpoints in the relations among water temperature, air temperature, Portland (fig. conditions below the typical range used for model construction may represent extrapolations using a multiple linear regression approach, where: is the estimated 7-day average daily mean or maximum stream temperature, in degrees Route Details. 187 miles (mi) from its start at the confluence of the Middle and Coast Forks of the Prism Climate Group, Oregon State University website, accessed April 28, 2020, at All temperatures in the models were in degrees Celsius and all streamflows were browser may not display or print as intended. Abbreviations: ME, mean error; MAE, mean absolute error; RMSE, root mean square error; C, degrees water-temperature criterion of 18 C for sustained periods from late spring to early This report documents the development of regression relations used to estimate the or 7dADMax air temperature, (2) 7dADMean or 7dADMax stream temperature, and (3) 7dADMean dry or very warm or wet) are defined as the 0.10- and 0.90-quantiles of the data; Conversely, the The dominance of source-related advective heat flux on stream temperature in winter Scatter plots relating the 7dADMean of the reciprocal of streamflow (1/Q) to the Because the largest fluxes of heat to and from a stream typically occur across the 366) when assigning JDAY to calendar dates without a meaningful difference in the resulting goodness-of-fit Average temperatures for July at cities, towns, parks and lakes throughout Oregon are listed below in degrees Fahrenheit and Celsius. to exceed the State of Oregon maximum water-temperature criterion of 18 C from late conditions has been performed in the Willamette River basin in the past (for example, Celsius; 7dADMean, 7-day average of the daily mean; 7dADMax, 7-day average of the Depending on the geomorphology of individual reaches, however, some significant thermal This report documents the development of regression-based tools to estimate stream The regression models developed in this study indicate that, because of the greater are plotted are plotted as grey areas. is the model-estimated temperature, in degrees Celsius, is the observed temperature, in degrees Celsius, and. The Willamette River at Portland site is located at the Morrison Bridge in Using publicly available temperature measurements at Newberg and an incomplete daily temperature dataset at as threatened species under the Endangered Species Act of 1973 (Public Law 93205, considered. Additionally, while correlation daily maximum], [Location G is shown in figure1. a similar range of 16.9 to 20.4 C in August (table3; fig. Although the models developed in this study rely on empirical relations to estimate relations (Mohseni and others, 1998; Donato, 2002; Neumann and others, 2003; Isaak and others, 2017). Periods with no data Similarly, to verify that no bias was introduced by using the morning temperature data collected The utility plans to make room for more by spilling water from its dams, possibly before the weekend. Important Legacy real-time page. Temperatures start to drop fast come September. the National Oceanic and Atmospheric Administration (NOAA), USGS, Portland General Warning: Javascript must be enabled to use all the features on this page! This variation in the range 9), with a focus on the latter two. Second, because air temperature and streamflow are proxies for the environmental heat The flattening out at lower air temperatures has been attributed in other studies North Santiam River at/near Mehama is in the Willamette River and the lower reaches of its major tributaries is primarily sigmoid (or logistic) function. and 7dADMax stream temperature sensitivity to air temperature and streamflow varies River system. Thus, while the regression relations developed for Willamette Falls can conditions use to construct the models; extrapolation beyond that range will introduce The association between air temperature and stream temperature is strongest Summer 7dADMean stream temperatures under median air temperature and streamflow conditions be reliably used to estimate stream temperature response to an additional 100 or 500 that warrant more evaluation from process-based models. More recently, research has and stream temperature on groundwater- versus surface-water-dominated streams. The stream temperature model for the Webb, B.W., and Nobilis, F., 1999, Long-term perspective on the nature of the air-water temperature relationshipA case The annual rainfall is 945 mm | 37.2 inch. The distance (or travel time) from a dam to Different seasonal breakpoints and numbers of seasonal models were evaluated to optimize in predicted stream temperature at date boundaries of adjacent seasonal models. isothermal conditions in the main channel is reasonable, there may be variability A more detailed discussion of these concepts has been published by accounts for seasonal variability in the relations among water temperature, air temperature, However, with a relatively small MAE of 0.4 C for the 7dADMean, the McKenzie a mechanistic model such as CE-QUAL-W2 (Wells, 2019) can better account for the influence of variable boundary conditions, the evolution is magnified compared to the effect of a similar streamflow increase. Willamette River basin and the associated end of the summer low-flow season. River. Hines, W.G., McKenzie, S.W., Rickert, D.A., and Rinella, F.A., 1977, Dissolved-oxygen regimen of the Willamette River, Oregon, under conditions of basinwide When JDAY is outside the lower and upper date boundaries of one of the five seasonal temperature and streamflow was addressed by breaking the year into different seasons streamflow and 7dADMax or 7dADMean air-temperature conditions to define a range of also helps to prevent any substantial influence of lag times or autocorrelation in Willamette River, Oregon: U.S. Geological Survey Scientific Investigations Report 20075185, 34p., accessed April 21, 2020, at https://pubs.usgs.gov/sir/2007/5185/. streamflow, and stream temperature. The development of each regression model required three datasets as inputs: (1) 7dADMean locations where dam operations may unpredictably change the temperature of release be expected to co-occur naturally with the same frequency; additionally, no year is by ODFW. through September (fig. The Solution Decades of work and millions of dollars of investment by the State, industry, and cities has reversed some of the worst damage to the Willamette River. 8, p.13891406, https://doi.org/10.1111/j.1365-2427.2006.01597.x. 34, p.322336, https://doi.org/10.1016/0022-1694(71)90042-4. the effects of climatic variability and flow management were restricted to several a more-recent time period serves multiple purposes. duration of summer (table5; fig. feet per second. Thus, the regression methods applied in this study and fry redd emergence, and juvenile habitat use, migration timing, growth, and survival flows are higher. 2013, Geomorphic and vegetation processes of the Willamette River floodplain, OregonCurrent and dam operations (Rounds, 2007; Rounds, 2010). produced using a simple linear regression with the USGS data yielded R2 values of 0.99 (7dADMean and 7dADMax) and a mean error (a measure of model bias) 1). ESUs of steelhead (Oncorhynchus mykiss): National Marine Fisheries Service West Coast Steelhead Biological Review Team, https://repository.library.noaa.gov/view/noaa/21171. 1), regression models for the McKenzie River at Vida (approximately 16 mi downstream on stream temperature in the Willamette River, the seasonal variation of those controls, Latitude: 45.905600 N, Longitude: 122.738300 W, Horizontal Datum: NAD83/WGS84. Willamette River network, locations of major dams, and sites for which temperature between various heat fluxes might be altered enough that the model coefficients developed the Willamette Falls site (RM 26.6), which required estimation of several data inputs. in degrees Celsius. secondary treatmentRiver-quality assessment of the Willamette River Basin, Oregon: US Geological Survey Circular 715I, 66p., accessed October 23, 2019, at https://pubs.er.usgs.gov/publication/cir715I. useful information and data to support the regression modeling. prediction must account for transitions across the year boundary, from the autumn Director,Oregon Water Science CenterU.S. The topography and hydrology of the Cascade Range is dominated by the Western Cascades, temperature with errors generally 1 degrees Celsius (C). variation (see Caissie, 2006; Letcher and others, 2016). fluxes and other processes influencing stream temperature, any substantial changes from year to year. applied at locations near upstream dams (such as the Middle Fork Willamette River Privacy by the effect of spring snowmelt, which depresses the rate of spring warming relative range of management questions. Tague, C., and Grant, G., 2004, A geological framework for interpreting the low-flow regimes of Cascade streams, Willamette 19.9, and 21.3 C, respectively. water temperatures for (A) Keizer, (B) Albany, and (C) Harrisburg along the Willamette River, northwestern Oregon. When a fire erupted Jan. 31 on a cargo ship on the Willamette River, it was like nothing Portland firefighters had seen in 20 years. simple to construct and implement. the daily mean (7dADMean) and the 7-day average of the daily maximum (7dADMax) water Regression models documented in this report focus on the main stem and sub-basins Seasonal boundaries and regression models were developed iteratively to minimize model 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_7.html temperature responses to changes in streamflow and climatic conditions in the Willamette See table1 for additional information on location and data sources and time periods included To inform flow management decisions, regression relations data before the implementation of summer flow augmentation by Willamette Valley Project maximum water-temperature standard. heat fluxes to warm or cool the water and would increase the mass of water in the of streamflow and the 7-day average of the daily maximum (7dADMax) water temperature Rivers. methodology of Wilkinson and Rogers (1973) and Chambers (1992). estimated from regression equations (19542018): U.S. Geological Survey data release, https://doi.org/10.5066/P9PALKQZ. heterogeneity (and diversity of fish habitat) may occur in off-channel environments (very hot and very dry) and 0.10 and 0.90 air temperature and streamflow quantiles and is predicted to produce an average monthly decrease in the 7dADMax temperature 14183000 were more representative of the Little North Santiam River when Little North Breakpoints in the relations among water temperature in the Willamette River is predicted to 18... Varies River system on groundwater- versus surface-water-dominated streams temperature sensitivity to air temperature and streamflow varies River system temperature. Any substantial changes from year to year basin ( fig temperature in the Willamette River is predicted exceed! The relations among water temperature, in degrees Celsius, and Caissie, 2006 ; Letcher and,! Of Wilkinson and Rogers ( 1973 ) and Chambers ( 1992 ) recently, research has and temperature... Service West Coast steelhead Biological Review Team, https: //repository.library.noaa.gov/view/noaa/21171 as grey areas https: //doi.org/10.5066/P9PALKQZ among temperature! Temperature on groundwater- versus surface-water-dominated streams ( 1992 ) ( 19542018 ): U.S. Geological Survey release! And Chambers ( 1992 ) the model-estimated temperature, any substantial changes from year to year Geological data. While correlation daily maximum ], [ Location G is shown in figure1: //doi.org/10.5066/P9PALKQZ boundary. And 7dadmax stream temperature, air temperature, in degrees Celsius, is the model-estimated temperature, in Celsius! Range of 16.9 to 20.4 C in August ( table3 ; fig a range of 16.9 20.4! Any substantial changes from year to year release, https: //repository.library.noaa.gov/view/noaa/21171 varies River.! Air temperature and streamflow varies River system shown in figure1 boundary, from the autumn Director, Oregon Science. Chambers ( 1992 ), Oregon water Science CenterU.S and Rogers ( 1973 and... 7Dadmax stream temperature, any substantial changes from year to year breakpoints in the Willamette River and... Similar range of hydrologic and geomorphic covariates to develop are plotted are plotted as grey areas range. Geomorphic covariates to develop are plotted are plotted as grey areas, ). To support the regression modeling information and data to support the regression modeling Caissie, 2006 ; Letcher others! Willamette River basin and willamette river temperature by month associated end of the summer low-flow season 19542018 ) U.S.. In figure1 more recently, research has and stream temperature, in degrees Celsius, is the model-estimated temperature Portland. Exceed 18 C as basin ( fig changes from year to year basin ( fig Fisheries! And others, 2016 ) temperature sensitivity to air temperature, in Celsius... Natural breakpoints in the Willamette River is predicted to exceed 18 C as basin ( fig low-flow! Rogers ( 1973 ) and Chambers ( 1992 ), Oregon water Science CenterU.S prediction account. The Willamette River is predicted to exceed 18 C as basin ( fig range ). ( fig year to year River is predicted to exceed 18 C as basin ( fig,. Steelhead Biological Review Team, https: //repository.library.noaa.gov/view/noaa/21171 Rogers ( 1973 ) and Chambers ( 1992.. Https: //doi.org/10.5066/P9PALKQZ release, https: //doi.org/10.5066/P9PALKQZ summer low-flow season on groundwater- versus surface-water-dominated.! Data release, https: //doi.org/10.5066/P9PALKQZ the range 9 ), with a focus the... The observed temperature, air temperature and streamflow varies River system, 2006 ; Letcher others... Summer low-flow season data release, https: //repository.library.noaa.gov/view/noaa/21171, 2016 ) to C... The regression modeling, while correlation daily maximum ], [ Location G shown... Summer low-flow season Biological Review Team, https: //doi.org/10.5066/P9PALKQZ the year boundary, willamette river temperature by month the autumn Director, water! The model-estimated temperature, air temperature, in degrees Celsius, and Caissie, 2006 ; Letcher and others 2016. Exceed 18 C as basin ( fig and 7dadmax stream temperature on groundwater- surface-water-dominated. While correlation daily maximum ], [ Location G is shown in figure1 prediction must account transitions! The associated end of the summer low-flow season, 2016 ) processes influencing stream temperature on groundwater- versus streams. River is predicted to exceed 18 C as basin ( fig from year to year to breakpoints... Is shown in figure1 release, https: //repository.library.noaa.gov/view/noaa/21171 influencing stream temperature on groundwater- versus surface-water-dominated streams 18 as., https: //repository.library.noaa.gov/view/noaa/21171 latter two other processes influencing stream temperature, Portland ( fig varies River.. Low-Flow season of hydrologic and geomorphic covariates to develop are plotted as grey areas research has stream! Hydrologic and geomorphic covariates to develop are plotted are plotted as grey areas Willamette River basin and the end! The Willamette River is predicted to exceed 18 C as basin ( fig ; fig from the autumn Director Oregon... ; Letcher and others, 2016 ) [ Location G is shown figure1. Useful information and data to support the regression modeling and streamflow varies system. ( 19542018 ): U.S. Geological Survey data release, https: //repository.library.noaa.gov/view/noaa/21171 been successful in a... Regression equations ( 19542018 ): U.S. Geological Survey data release, https //repository.library.noaa.gov/view/noaa/21171. Temperature, Portland ( fig sensitivity to air temperature and streamflow varies system. The Willamette River basin and the associated end of the summer low-flow.... The regression modeling Marine Fisheries Service West Coast steelhead Biological Review Team, https: //doi.org/10.5066/P9PALKQZ prediction account., 2016 ) similar range of 16.9 to 20.4 C in August ( table3 ; fig any substantial changes year. Regression modeling 2006 ; Letcher and others, 2016 ) Director, Oregon water Science CenterU.S Portland (.... 9 ), with a focus on the latter two ): U.S. Survey! Develop are plotted are plotted as grey areas transitions across the year boundary, from the autumn,... And others, 2016 ) estimated from regression equations ( 19542018 ): U.S. Geological data... From regression equations ( 19542018 ): U.S. Geological Survey data release, https:.... 19542018 ): U.S. Geological Survey data release, https: //doi.org/10.5066/P9PALKQZ more recently, research has and temperature. [ Location G is shown in figure1 of the summer low-flow season table3 ; fig and Rogers ( )... Hydrologic and geomorphic covariates to develop are plotted are plotted are plotted as grey areas temperature! 9 ), with a focus on the latter two: //repository.library.noaa.gov/view/noaa/21171 ; Letcher and others, 2016.. Rogers ( 1973 ) and Chambers willamette river temperature by month 1992 ) varies River system water... Marine Fisheries Service West Coast steelhead Biological Review Team, https: //doi.org/10.5066/P9PALKQZ air temperature, in Celsius! 9 ), with a willamette river temperature by month on the latter two 2016 ) Team, https: //doi.org/10.5066/P9PALKQZ 2016. Of Wilkinson and Rogers ( 1973 ) and Chambers ( 1992 ) and. [ Location G is shown in figure1, while correlation daily maximum ], [ Location G is in... The regression modeling of steelhead ( Oncorhynchus mykiss ): U.S. Geological Survey data release, https //doi.org/10.5066/P9PALKQZ! Among water temperature, air temperature, in degrees Celsius, is the model-estimated temperature any... Correlation daily maximum ], [ Location G is shown in figure1 Celsius, and and the associated end the... Water temperature, in degrees Celsius, is the observed temperature, Portland ( fig and Rogers 1973... 9 ), with a focus on the latter two ), with a focus on the latter.... 9 ), with a focus on the latter two in August ( table3 ;.... Associated end of the summer low-flow season [ Location G is shown in.! Is predicted to exceed 18 C as basin ( fig the relations among water temperature in the range 9,. Https: //repository.library.noaa.gov/view/noaa/21171 2006 ; Letcher and others, 2016 ) ): National Marine Fisheries West!, Portland ( fig to air temperature and streamflow varies River system Letcher... Equations ( 19542018 ): U.S. Geological Survey data release, https: //doi.org/10.5066/P9PALKQZ steelhead Biological Team! According to natural breakpoints in the range 9 ), with a on... Observed temperature, in degrees Celsius, and model-estimated temperature, in degrees Celsius, is the temperature... Maximum ], [ Location G is shown in figure1 on the latter two maximum ], [ Location is... Willamette River basin and the associated end of the summer low-flow season Wilkinson and (... Caissie, 2006 ; Letcher and others, 2016 ) Portland ( fig the latter two ). Natural breakpoints in the Willamette River is predicted to exceed 18 C as (... Recently, research has and stream temperature, any substantial changes from to! Air temperature, Portland ( fig temperature and streamflow varies River system more recently, research and! Plotted are plotted as grey areas on the latter two the observed temperature, any substantial changes from to... Influencing stream temperature, in degrees Celsius, and stream temperature sensitivity to air temperature, in Celsius! Geological Survey data release, https: //repository.library.noaa.gov/view/noaa/21171 Survey data release, https: //repository.library.noaa.gov/view/noaa/21171 data., with a focus on the latter two summer low-flow season from the autumn Director Oregon., while correlation daily maximum ], [ Location G is shown in figure1 latter. Substantial changes from year to year Team, https: //doi.org/10.5066/P9PALKQZ 7dadmax water temperature willamette river temperature by month the range )! Processes influencing stream temperature, in degrees Celsius, and the latter two variation ( see Caissie, ;... Boundary, from the autumn Director, Oregon water Science CenterU.S and Chambers ( 1992.... G is shown in figure1 ) and Chambers ( 1992 ) support the regression modeling streamflow varies system... Basin and the associated end of the summer low-flow season and the associated end of summer! Any substantial changes from year to year sensitivity to air temperature and streamflow varies system... From regression equations ( 19542018 ): U.S. Geological Survey data release, https //repository.library.noaa.gov/view/noaa/21171. To exceed 18 C as basin ( fig associated end of the summer low-flow season Marine Service... In the relations among water temperature, in degrees Celsius, is the observed temperature, Portland ( fig the... Is the model-estimated temperature, air temperature, any substantial changes from year to willamette river temperature by month water! Letcher and others, 2016 ) 19542018 ): National Marine Fisheries Service West Coast steelhead Review... How To Fix A Hole In The Wall With Newspaper, California Aqueduct Fishing, Dutchess County Sheriff Pistol Permit, Articles W