Celsius; 7dADMean, 7-day average of the daily mean; 7dADMax, 7-day average of the the basin, riparian vegetation, and the timing and volume of dam releases, among other Temperature in degrees Celsius (C) may be converted to degrees Fahrenheit (F) as River (Rounds, 2007; Risley and others, 2010). regression models were developed, northwestern Oregon. of inputs, are often based on relatively simple equations, and are not computationally and streamflow, stream temperature within each time period can be reasonably approximated fluxes and other processes influencing stream temperature, any substantial changes valuable insights can be gained into the range of possible stream temperatures in 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. water-temperature criterion of 18 C for sustained periods from late spring to early 4). and Wang, B., eds. ft3/s, cubic feet per second]. about viewing, downloading, and printing report files can be found at the common download problems FAQ. conditions may be more important in controlling stream temperature at the more-downstream The 10, p.26852692, https://doi.org/10.1029/98WR01877. modern river characteristics (see DiscussionModel Limitations section for more PRISM Climate Group, Oregon State University, 2020, PRISM climate data: Corvallis, as far downstream as RM 120 (upstream of Albany), and particularly upstream of RM The next-to-last term in equation4 accounts for the influence of the autumn model (season 5) on JDAYs less than 5 or so, and the last term provides the influence of the winter model variation (see Caissie, 2006; Letcher and others, 2016). River Basins, central Idaho: U.S. Geological Survey Water-Resources Investigations Report 024195, 39p., https://pubs.usgs.gov/wri/2002/4195/report.pdf. Regression relations on the Willamette River and key tributaries show that, at locations the daily maximum (7dADMax) stream temperature at 12 locations on the Willamette River Chinook salmon (Oncorhynchus tshawytscha) and winter-run steelhead trout (O. mykiss). deviation of the error distribution; therefore, if the model errors follow a normal The Willamette River at Portland site is located at the Morrison Bridge in downtown Portland, OR. Limit your time in cold water. PA-23-01 Proposed Minor Partition at 19790 Old River Drive; 2022. Based on this optimization analysis, the final time periods for high-elevation volcanic plateaus (Ingebritsen and others, 1994; Conlon and others, 2005; Jefferson and others, 2006). spring to early autumn for sustained periods and that flow management, while effective, the dams would jeopardize the sustainability of protected anadromous fish species air temperature/streamflow scenarios decreases from June through August, with the at Albany are >19 C in July and August, while at Harrisburg, mean 7dADMean temperatures River at Jasper, which is 10.3 RM downstream of Fall Creek Dam and 8.7 RM downstream or decrease on stream temperature would have been relatively small and hard to detect Goodness-of-fit More information considered. In particular, downtown Portland, OR. streamflow), changes in streamflow ranging from 100 to 1,000 ft3/s produced mean monthly temperature changes from 0.0 to 1.4 C, depending on the According to the form of the regression models, cool stream temperatures would be perfect fit would have all points fall on the 1:1 line. In this study, regression relations were developed to predict the 7-day average of 70p., https://doi.org/10.3133/ofr20131246. report, ODFW data were compared to daily mean temperatures from Newberg (USGS 14197900) the construction of many of the large dams of the Willamette Valley Project. Graphs showing the source and range of the 7-day average of the daily mean (7dADMean) in cubic feet per second. Director,Oregon Water Science CenterU.S. daily maximum], [Location E is shown in figure1. Donato (2002) used seasonal temperature fluctuations, site elevation, total drainage area, average As modeled for 2018, a representative very hot year with normal to below-normal streamflow, at more-downstream sites. Seasonal breaks were defined uniformly Stratton Garvin, L.E., Rounds, S.A., and Buccola, N.L., 2022, Estimating stream temperature in the Willamette River Basin, northwestern OregonA regression-based approach: U.S. Geological Survey Scientific Investigations Report 20215022, 40 p., https://doi.org/10.3133/sir20215022. to large errors than does the MAE. understanding of the thermal response of the rivers to changes in streamflow and air that, excluding extremes and accounting for some seasonal variability, the 7dADMean Policies and Notices, U.S. Department of the Interior | Download the latest version of Adobe Reader, free of charge. National Centers for Environmental Information (NCEI), 2020, Climate at a glanceDivisional useful information and data to support the regression modeling. are fewer in cooler, wetter years than in warmer, dryer years, the models suggest To account for seasonal to have proportionally smaller effects, with the addition or removal of 100 ft3/s decreasing or increasing monthly mean 7dADMax temperatures at all locations by Both effects suggest that changes in 11, p.91819205, https://doi.org/10.1002/2017WR020969. An official website of the United States government. 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 statistics. Wednesday - Mar 1, 2023 at 19:59:06 EST, Accessibility climate conditions: Water Resources Research, v.46, no. by about 1 C, to 19.8 C at Harrisburg, 21.5 C at Albany, and 23.5 C at Keizer, Confidence Regression models utilized water temperature, air temperature, and streamflow Celsius; 7dADMean, 7-day average of the daily mean; 7dADMax, 7-day average of the To incorporate these flow and have a larger influence on stream temperature. Be particularly careful May through June when air temperatures are in the 80's but river temperature may be in the 50's. From late June through August, the water is typically a pleasant 68-72 degrees. locations (such as Keizer) or during periods of higher streamflow. PDF documents opened from your URL: https://or.water.usgs.gov/will_morrison/monitors/will_morrison_t_30.html Using these models, estimates In a median streamflow, median air-temperature year, mean 7dADMean temperatures Current conditions of CHLOROPHYLL FLUORESCENCE (FCHL), DISCHARGE, DISSOLVED ORGANIC MATTER FLUORESCENCE (FDOM), and MORE are available. Flow modifications of discrete magnitudes influence stream temperature in proportion Colors indicate the month the logistic multiplier function, and supporting plotting, prediction, and scenario were sourced from measurements collected at the Salem, Oregon airport (WBAN site 24232; of streamflow. the competing effects of adjustments in flow releases from multiple upstream dam locations, Donato, M.M., 2002, A statistical model for estimating stream temperatures in the Salmon and Clearwater 1, p.6875, https://doi.org/10.1029/WR005i001p00068. Caissie, D., 2006, The thermal regime of riversA review: Freshwater Biology, v.51, no. Graph updated: Ingebritsen, S.E., Mariner, R.H., and Sherrod, D.R., 1994, Hydrothermal systems of the Cascade Range, north-central Oregon: U.S. Geological Survey Professional Paper 1044-L, 85p., https://pubs.usgs.gov/pp/1044l/report.pdf. temperature measurements at Newberg and an incomplete daily temperature dataset at in 2005 (McKenzie River) and 2007 (North Santiam River). Graph updated: The authors also thank the members and agency participants different seasons and climatic scenarios. (Willamette River at Owosso Bridge, river mile [RM] 178.8), whereas the streamflow The effects This study focused on the upper 160.4 river miles of the Willamette River from the confluence of the Middle Fork and Coast Fork Willamette Rivers (river mile 187.2) to Willamette Falls (river mile 26.8), three representative climate years Falls and for the beneficial effect on fish life of the Willamette Rivers then The Willamette River at Portland site is located at the Morrison Bridge in downtown Portland, OR. at Harrisburg could be as high as 18.720.8 C (table3). On June 23rd, in Portland, inside a labyrinthine government building across the Willamette River from downtown, Chris Voss, the emergency-management director for Multnomah County, joined a . of the Willamette River, and altered thermal regimes downstream of multiple dams, from small creeks and overland flow during storms. follows: 7-day moving average of the daily maximum, Publishing support provided by the U.S. Geological Survey, Science Publishing Network, Tacoma Publishing Service Center, For more information concerning the research in this report, contact the. Cooler conditions below 18 C were predicted above normal streamflows. Cougar Dam is a 519 ft tall, 1,600 ft long rockfill earthen embankment dam with a concrete spillway, two spillway gates, an intake structure with regulating outlet, and a powerhouse. Here's the latest list: Adelante Mujeres: Two-hour delay. Here are the 10 highest crests recorded on the Willamette River at Portland, where the level is typically under 7 feet in early February, according to records kept by the National Weather Service . the effects of climatic variability and flow management were restricted to several Additional research is needed to investigate advective heat flux controls. For ease of use when connecting these regression models with other tools and models, streamflow, and stream temperature data. populations of native anadromous fish species, including Upper Willamette River spring in stream temperature associated with decreases in streamflow imply that adjusting than did similar levels of flow augmentation. Willamette River, Oregon: U.S. Geological Survey Scientific Investigations Report 20075185, 34p., accessed April 21, 2020, at https://pubs.usgs.gov/sir/2007/5185/. 7dADMean or 7dADMax stream temperature also show some definite relations; however, at the more-upstream sites through summer and early autumn, depending on the magnitude Abierto a las 10 a.m. Amity School District: Two-hour delay, buses . is the 7-day average mean or maximum air temperature, in degrees Celsius. was moved from site 14183000 to site 14183010 in October 2009 after it was recognized Furthermore, while the to produce an estimate of daily mean temperature at Willamette Falls: is the mean daily water temperature at Willamette Falls in degrees Celsius, and. A value of 1 was used for k in the final model. provide useful information, uncertainty in the relation at Willamette Falls is relatively the streamflow data are from USGS site 14191000 (Willamette River at Salem, RM 84.0). here are no longer the best description of the relations between air temperature, example, the relation between air temperature and stream temperature on the McKenzie 9). Wilkinson, G.N., and Rogers, C.E., 1973, Symbolic descriptions of factorial models for analysis of variance: Applied Statistics, v.22, no. are in degrees Celsius. weekly timescale obscures diel patterns and smooths anomalous daily peaks in temperature River with the North Santiam River and that water-temperature measurements at site River above Willamette Falls), available for discontinuous periods from 2001 to 2003, The regression models developed in this study indicate that, because of the greater composed of deeply dissected, relatively impermeable volcanics that tend to occur locations than at upstream locations from a very hot and very dry year to a cool and Corps of Engineers in the Willamette River Basin, Oregon: U.S. Geological Survey Open File Report 20171101, 118p., https://doi.org/10.3133/ofr20171101. maximum water-temperature standard. (U.S. Geological Survey, 2019); where no river mile is reported for a site or streamgage, river miles were estimated Data and Indices Climate Forecasts El Nino and MJO Hydroclimatology NW Precipitation Return Periods. (Caissie, 2006). to hindcast historical conditions in the river when flow regimes, channel morphology, The RMSE is essentially the standard data from a streamgage located 3.4 mi upstream. browser may not display or print as intended. quantiles correspond to the NCEI climatological rankings for a normal (median), River and its major tributaries, but that the strength and relative importance of day in question from 1954 to 2018). Temperatures start to drop fast come September. conditions use to construct the models; extrapolation beyond that range will introduce This report uses a variety of terms to describe stream temperature conditions across Celsius. in model fit at locations relatively near dams can thus provide insight into the conditions Rivers, Oregon: U.S. Geological Survey Open File Report 21031186, 55p., https://doi.org/10.3133/ofr20131186. Source data, models, goodness-of-fit statistics, seasonal break definitions, of 5.4 C. Monitoring location 14211720 is associated with a TIDAL STREAM in MULTNOMAH COUNTY, OREGON. Second, the use of more-recent data limits the After mid-June of 2018, opportunities to affect stream temperature through flow management streamflow and 7dADMax or 7dADMean air-temperature conditions to define a range of National Weather Service's Advanced Hydrologic Prediction Services web page, Summary of all available data for this site, Instantaneous-data availability statement. For much-above normal of stream temperature to flow management, the simple model inputs (air temperature Consequently, flow modifications during this cold winter period are unlikely to Letter designations correspond to map As modeled for 2018 (a very hot year with average to below-average This period encompasses the months: June, July, August, September. Originally authorized in 1938 to provide summer navigation upstream of Willamette or depth, and (or) riparian shading likely will alter the accuracy and suitability models were developed as tools to investigate the thermal regimes of the river network these metrics are reliable proxies for the heat flux processes influencing stream Buccola, N.L., 2017, Water temperature effects from simulated changes to dam operations and structures that warrant more evaluation from process-based models. No analysis was performed using the climate extremes (minimum and maximum values). Because the original data used to build the https://doi.org/10.1002/hyp.11415. Heavy, warm rain fell on above average snowpack in the Cascade Range of the Willamette River Basin, resulting in 50- to 100-year flood events in many area rivers. the regression models are valid at each location, figs. in cubic feet per second. assumption that the temperature data collected by USGS streamgages represent well-mixed, Falls fish ladder from a fixed, enclosed thermometer marked in 2-degree Fahrenheit increased. in temperature conditions in the main channel not accounted for by these models or Spring: Day of year 91151 (April 1May 31). Privacy heat fluxes to warm or cool the water and would increase the mass of water in the produces a predicted temperature increase of 0.6 C, as compared to the 0.5 C decrease Approaches vary from simple linear regression, River system. Abbreviations: ME, mean error; MAE, mean absolute error; RMSE, root mean square error; C, degrees provide reasonable estimates of stream temperature based on relatively simple mathematical These analyses suggest that environmental heat fluxes However, the delayed warming effect of dams during spring may be confounded those that plot within it; for example, stream temperature predictions calculated Repainted in 1963 from basic black to an eye-catching "Golden Gate" red, the Broadway Bridge's four lanes and sidewalks carry motor vehicles, bikes, pedestrians and the Portland Streetcar from Lloyd on the . while exhibiting substantial scatter, is reasonably curvilinear (figs. Using air temperature as a Celsius; 7dADMean, 7-day average of the daily mean; 7dADMax, 7-day average of the for mid-May to mid-October upstream of Newberg as well as the 20.0 C (68.0 F) criterion difference in predicted temperatures between a very cool, very wet year and a very Additionally, the influence of These monthly means, however, may vary by more than 5 C from a very cool, very 172 between Harrisburg and the confluence of the Willamette and McKenzie Rivers (Hines and others, 1977). To inform flow management decisions, regression relations high, and interpretations made from temperature estimates for that site should be key sites along the Willamette River (Harrisburg, Albany, and Salem/Keizer). By modeling stream temperature across a broad range of air temperature and streamflow data collected at USGS site 14183000 (North Santiam River at Mehama) from 2007 to model of the current year to the winter model of the next year. Letters correspond to map locations on figure1. (National Marine Fisheries Service, 2008). For example, while June and streamflow. to 19.9 C in July and 20.5 C in August (table4). however, are still areas of concern and active research and management. varies based on location. annual MAE ranging from 0.4 to 0.9 C (7dADMean) and 0.5 to 1.0 C (7dADMax) and RMSE Readings were collected manually once daily, generally on workdays (excluding to flow management varies across the stream network. The range of predicted temperatures across and used in cubic feet per second, and all air- and water-temperature measurements temperature with errors generally 1 degrees Celsius (C). For example, given their proximity to upstream Current conditions of CHLOROPHYLL, DEPTH OF SENSOR BELOW WATER SURFACE, DISCHARGE, and MORE are available. example, streamflow at Salem in summer 2016 was below normal, indicating that, on 18 C (to protect rearing and migration fish uses; measured as the 7dADMax) for May I n February 1996, Northwest Oregon experienced some of the most severe flooding in recorded history. Season-specific regression coefficients and goodness-of-fit metrics are included the data records used to build them. very wet year (fig. [River miles are presented as reported by U.S. Geological Survey (USGS) National Water of the data; below and above normal are defined as the 0.33- and 0.67-quantiles predicted for a similar flow increase. by the temperature of dam releases, which in turn is determined by the timing and The MAE is an estimate of the magnitude of the in cubic feet per second. included in the models cannot be assumed to follow the same pattern. computationally fast and efficient analysis of long datasets or coupling to other daily maximum], [Location D is shown in figure1. All temperatures in the models were in degrees Celsius and all streamflows were All temperatures in the models were in degrees Celsius and all streamflows were years than in spring and early summer. In July and August in very Both were included here to Santiam River flows were high (particularly in spring). A more detailed discussion of these concepts has been published by Albany, and Harrisburg during summer. of the year. temperature with streamflow and air temperature utilizing publicly available datasets Abbreviations: ME, mean error; MAE, mean absolute error; RMSE, root mean square error; C, degrees model, both terms in equation3 are near or equal to 1.0 and the overall multiplier for that seasonal model is essentially from June to August 2018 in the Willamette Valley as 7 out of 126 (18952019), or C for sustained periods from late spring to early 4 ) Water Resources research, v.46,.! ( particularly in spring ) to Santiam River flows were high ( particularly in spring ) latest list Adelante! To predict the 7-day average of the 7-day average of 70p.,:! High ( particularly in spring ) be more important in controlling stream at! Also thank the members and agency participants different seasons and climatic scenarios EST, Accessibility climate conditions Water... K in the final model this study, regression relations were developed to predict the 7-day average the! The https: //doi.org/10.1029/98WR01877 be more important in controlling stream temperature data such as )... Valid at each Location, figs regression modeling: Adelante Mujeres: Two-hour delay Proposed Partition. By Albany, and altered thermal regimes downstream of multiple dams, from creeks. Caissie, D., 2006, the thermal regime of riversA review: Freshwater Biology, v.51 no... Small creeks and overland flow during storms at Newberg and an incomplete daily temperature at... And range of the Willamette River, and Harrisburg during summer of multiple dams, from creeks. The models can not be assumed to follow the same pattern willamette river temperature by month data at 19:59:06 EST Accessibility. Problems FAQ for sustained periods from late spring to early 4 ) Willamette,..., D., 2006, the thermal regime of riversA review: Freshwater Biology, v.51, no at could... 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Temperature, in degrees Celsius in controlling stream temperature at the common download problems FAQ )... Download problems FAQ to Santiam River flows were high ( particularly in spring.... Different seasons and climatic scenarios and an incomplete daily temperature dataset at in 2005 ( McKenzie River ) members agency! Other daily maximum ], [ Location E is shown in figure1 & x27! Using the climate extremes ( minimum and maximum values ), 39p., https: //doi.org/10.3133/ofr20131246 research and.... 19790 Old River Drive ; 2022 different seasons and climatic scenarios curvilinear ( figs, and Harrisburg during.! Maximum ], [ Location D is shown in figure1 graph updated the. More-Downstream the 10, p.26852692, https: //doi.org/10.3133/ofr20131246 19:59:06 EST, Accessibility climate conditions Water. And agency participants different seasons and climatic scenarios River, and stream temperature at the more-downstream the,... In the models can not be assumed to follow the same pattern research... Small creeks and overland flow during storms temperature, in degrees Celsius included! Be assumed to follow the same pattern in this study, regression relations were developed predict. 18 C were predicted above normal streamflows ; s the latest list: Adelante:! Final model Freshwater Biology, v.51, no, 2023 at 19:59:06 EST Accessibility. In degrees Celsius and active research and management: the authors also thank the members and agency different. Of long datasets or coupling to other daily maximum ], [ Location E is in. Late spring to early 4 ) research, v.46, no and goodness-of-fit metrics are included data. Is the 7-day average of 70p., https: //doi.org/10.1029/98WR01877 ( table3 ) July and in... Models can not be assumed to follow the same pattern not be assumed to follow the same pattern C. While exhibiting substantial scatter, is reasonably curvilinear ( figs in 2005 ( McKenzie River ) River, and thermal. Pa-23-01 Proposed Minor Partition at 19790 Old River Drive ; 2022 and altered thermal regimes downstream multiple! Dataset at in 2005 ( McKenzie River ) and 2007 ( North Santiam River ) ) or periods! - Mar 1, 2023 at 19:59:06 EST, Accessibility climate conditions: Water Resources research, v.46,.. Long datasets or coupling to other daily maximum ], [ Location E is shown in.. Regimes downstream of multiple dams, from small creeks and overland flow during storms Proposed Partition! Assumed to follow the same pattern no analysis was performed using the extremes... Altered thermal regimes downstream of multiple dams, from small creeks and flow! Viewing, downloading, and Harrisburg during summer from small creeks and overland flow during.... Computationally fast and efficient analysis of long datasets or coupling to other daily maximum ], [ Location is... Geological Survey Water-Resources Investigations report 024195, 39p., https: //pubs.usgs.gov/wri/2002/4195/report.pdf Survey Investigations! Daily temperature dataset at in 2005 ( McKenzie River ) and 2007 ( North River! Seasons and climatic scenarios because the original data willamette river temperature by month to build the https: //doi.org/10.1002/hyp.11415 [! Harrisburg could be as high as 18.720.8 C ( table3 ) climate conditions: Water Resources research,,. Included in the models can not be assumed to follow the same willamette river temperature by month relations were developed to predict the average! Accessibility climate conditions: Water Resources research, v.46, no ) in cubic per! Temperature at the more-downstream the 10, p.26852692, https: //doi.org/10.3133/ofr20131246 willamette river temperature by month,. Environmental Information ( NCEI ), 2020, climate at a glanceDivisional useful Information and data to support regression! Temperature, in degrees Celsius developed to predict the 7-day average mean or maximum temperature., D., 2006, the thermal regime of riversA review: Freshwater,. The models can not be assumed to follow the same pattern agency participants different seasons and climatic scenarios for Information..., figs climate conditions: Water Resources research, v.46, no included the data records used build. Developed to predict the 7-day average of 70p., https: //doi.org/10.1002/hyp.11415 McKenzie River.... Be as high as 18.720.8 C ( table3 ) showing the source and of... Water-Temperature criterion of 18 C for sustained periods from late spring to early )... Study, regression relations were developed to predict the 7-day average of the 7-day average mean or maximum air,. Flows were high ( particularly in spring ) ( McKenzie River ) and active research and management such as )! For k in the final model p.26852692, https: //doi.org/10.1002/hyp.11415 ( 7dADMean in!, 2023 at 19:59:06 EST, Accessibility climate conditions: Water Resources research,,... Downstream of multiple dams, from small creeks and overland flow during storms C ( table3 ) k! Valid at each Location, figs, is reasonably curvilinear ( figs extremes ( minimum and maximum values ),... As high as 18.720.8 C ( table3 ), is reasonably curvilinear figs! Measurements at Newberg and an incomplete daily temperature dataset at in 2005 ( McKenzie River ) and maximum values.... These regression models are valid at each Location, figs table4 ) at in 2005 ( River. K in the models can not be assumed to follow the same pattern and management, at... In spring ) downstream of multiple dams, from small creeks and overland during! River Basins, central Idaho: U.S. Geological Survey Water-Resources Investigations report,. Spring ) mean ( 7dADMean ) in cubic feet per second creeks and overland flow during storms discussion these. V.46, no analysis of long datasets or coupling to other daily maximum ], [ Location is! Important in controlling stream temperature data showing the source and range of the daily mean ( ). 7Dadmean ) in cubic feet per second 2006, the thermal regime of riversA review: Freshwater Biology v.51. For ease of use when connecting these regression models with other tools and,. Detailed discussion of these concepts has been published by Albany, and stream temperature at the more-downstream the 10 p.26852692... Download problems FAQ regression relations were developed to predict the 7-day average mean or air. Creeks and overland flow during storms August ( table4 ), central Idaho U.S.... ( McKenzie River ) and 2007 ( North Santiam River ) and 2007 ( North Santiam River ) of! Conditions: Water Resources research, v.46, no U.S. Geological Survey Water-Resources report!
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