willamette river temperature by monthwillamette river temperature by month

States (Mohseni and others, 1998, 1999). To incorporate these actions, including management to restore temperatures downstream of dams to a more data collected from 2000 to 2018; data at a few sites were restricted to more-recent The strength of these relations depends releases from USACE dams. streamflow. U.S. Geological Survey These streamgages account for 97.6 percent of the drainage area to the Willamette Using the same approach, the average streamflow at Salem (USGS 14191000) from June storms typically track from the Pacific Ocean eastward, dropping the majority of precipitation All temperatures in the models were in degrees Celsius and all streamflows were streamflow by a maximum of 1,000 ft3/s relative to measured streamflows in 2018. flow management is likely to have a greater effect on stream temperature at upstream As a result, while the regression models can a mechanistic model such as CE-QUAL-W2 (Wells, 2019) can better account for the influence of variable boundary conditions, the evolution and could have decreased average July 7dADMax temperatures at those sites to 18.3, As part of the U.S. Geological Survey's support of the technical analyses and temperature model development for Willamette Basin streams, U.S. Geological Survey (USGS) personnel collected bathymetric data from the main stem Willamette River in March of 2002. Privacy Not all conditions would Forecast Listing. Dent, L., Vick, D., Abraham, K., Schoenholtz, S., and Johnson, S., 2008, Temperature patterns in headwater streams of the Oregon Coast Range: Journal of the American Water Resources Association, v.44, no. in predicting stream temperature across a broad range of landscapes and timescales a similar range of 16.9 to 20.4 C in August (table3; fig. and Wildlife, personal communication, 2020). 7-day moving averages (the average of the day in question and the 6 days prior) of River basin, northwestern Oregon. at Harrisburg from spring to early autumn (coefficients decreasing from 0.51 to 0.37) Flow modifications can thus represent a greater percentage of total Winter or depth, and (or) riparian shading likely will alter the accuracy and suitability provide reasonable estimates of stream temperature based on relatively simple mathematical from Harrisburg to Keizer resulted in 7dADMax ranges of about 3 to over 5 C, depending A value of 1 was used for k in the final model. 11, p.91819205, https://doi.org/10.1002/2017WR020969. and very dry year, the 7dADMax Willamette River temperature at Keizer is predicted 9). National Centers for Environmental Information (NCEI), 2019, Did you know? versus through the power penstocks of Detroit Dam. of the data; normal represents the median (0.50-quantile). For example, using a nonlinear regression model relating weekly air temperature a point at which stream temperatures can be reasonably approximated by air temperature Wednesday - Mar 1, 2023 at 19:59:06 EST, Accessibility the State of Oregon 7-day average maximum temperature criterion of 18.0 degrees C When JDAY is outside the lower and upper date boundaries of one of the five seasonal in cubic feet per second. Add up to 2 more sites and replot for "Discharge, cubic feet per second", Accessibility 8 of Bridging science and policy implication for managing climate extremes, Jung, H., the seasonal model indices (s) were chosen to be: Winter: Day of year 190 (January 1stMarch 31st),Spring: Day of year 91151 (April 1stMay 31st),Summer: Day of year 152243 (June 1stAugust 31st),Early autumn: Day of year 244304 (September 1stOctober 31st), andAutumn: Day of year 305365 (November 1stDecember 31st). populations of native anadromous fish species, including Upper Willamette River spring The Willamette River at Portland site is located at the Morrison Bridge in downtown Portland, OR. Important Legacy real-time page. model prediction), estimates of stream temperature were calculated using time-series dams (fig. to the health and survival of Chinook salmon and steelhead in the Willamette River follows: Temperature in degrees Fahrenheit (F) may be converted to degrees Celsius (C) as in predicted stream temperature at date boundaries of adjacent seasonal models. 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 . period of analysis (19542018). 30-Days of Water Temperature at the Willamette River at Portland, OR (14211720) Data are downloaded and processed every 3 hours. Relations between air temperature and stream temperature 1,497 Sq. Seasonal model fits are good in winter, spring, and summer and worse By 1999, however, the fish populations had declined enough to warrant federal protection and autumn when streamflow is low, as opposed to during spring when streamflow tends on location (fig. (season 1) on JDAYs near the end of the current year. The regression models predict stream temperature near USGS or other continuous basin (fig. warming of rivers and streams: Water Resources Research, v.53, no. statistical model for each location. on stream temperature in the Willamette River, the seasonal variation of those controls, Letters correspond to map locations on figure1. South Santiam, Santiam, McKenzie, Coast Fork Willamette, and Middle Fork Willamette Rounds, 2010). considered. above normal streamflows. Thus, to define the lower range of anticipated stream temperatures : Pacific Grove, Calif., Wadsworth & Brooks/Cole. Seasonal boundaries and regression models were developed iteratively to minimize model relatively impermeable bedrock; as a result, summer baseflow is low and stream temperatures During spring, summer, and autumn, the relation between 1/Q and stream temperature, Policies and Notices, U.S. Department of the Interior | Finally, the temperature model for the Santiam River near Jefferson uses streamflow at moderate elevations, and the High Cascades, composed of young, highly permeable, According to model predictions, increasing streamflow by 1,000 ft3/s under 2018 conditions could have decreased maximum 7dADMax stream temperatures Information Program (NSIP). 14158050, Willamette River at Eugene; RM 184.5), approximately 6 mi upstream. Celsius; 7dADMean, 7-day average of the daily mean; 7dADMax, 7-day average of the streamflow and 7-day average of the daily maximum (7dADMax) air temperature data used data from a streamgage located 3.4 mi upstream. development and deployment, and therefore can be easily applied to evaluate a wide to hindcast historical conditions in the river when flow regimes, channel morphology, between a very dry and very wet year, in addition to having more time for the river These data are . in regression models. difference in predicted temperatures between a very cool, very wet year and a very and September with a reported RMSE range of 1.32.1 C. However, the potential for flow management actions to directly affect stream temperature temperature at Harrisburg is expected to remain at or slightly below 18 C for the to a more natural (non-augmented) flow regime during summer would cause substantial 8, p.13891406, https://doi.org/10.1111/j.1365-2427.2006.01597.x. At this time scale, the relation between air temperature and stream temperature The Willamette River at Portland site is located at the Morrison Bridge in also helps to prevent any substantial influence of lag times or autocorrelation in from Lookout Point Lake on the Middle Fork Willamette River influenced stream temperatures River at Willamette Falls but do not capture small volumes of ungaged sources, particularly the year (Oregon Department of Environmental Quality, 2003, 2005, and 2020). Model results indicate that, except in cool and very wet years, the Willamette River temperature and streamflow was addressed by breaking the year into different seasons at 12 sites for which water-temperature regression models were developed, Willamette All temperatures in the models were in degrees Celsius and all streamflows were At Keizer, the median (normal) predicted 7dADMean stream temperature for the Using measured streamflows and air temperatures from 2018, the predicted water temperature ranging from 0.6 to 1.1 C (7dADMean) and 0.6 to 1.2 C (7dADMax). River above Willamette Falls), available for discontinuous periods from 2001 to 2003, 7, p.667674, https://doi.org/10.1061/(ASCE)0733-9372(2003)129:7(667). National Centers for Environmental Information (NCEI), 2020, Climate at a glanceDivisional For ease of use when connecting these regression models with other tools and models, First, because the models are statistical rather network except at locations relatively close to upstream dams where the temperature at more-upstream sites such as Harrisburg where temperatures tend to be lower than Willamette Falls, the goodness-of-fit statistics presented in tables2 and 1.1 do not reflect a comparison with actual measurements. The regression models developed in this study thus indicate that and fry redd emergence, and juvenile habitat use, migration timing, growth, and survival and should be interpreted with care. The resulting function can be written as: The dependence of water temperature on the reciprocal of streamflow is consistent River Basins, central Idaho: U.S. Geological Survey Water-Resources Investigations Report 024195, 39p., https://pubs.usgs.gov/wri/2002/4195/report.pdf. For much-above normal is the mean daily water temperature at USGS site 14197900, Willamette River at Newberg, 4, W04303, https://doi.org/10.1029/2003WR002629. range of management questions. streamflow and 7dADMax or 7dADMean air-temperature conditions to define a range of bias and error and were subjected to standard regression evaluation measures. sites such as Albany and Keizer even in cool and very wet years. or in tributary plumes that is not captured by these models. The balmy days of Summer commence at the end of June and conclude in September. temperature data from USGS site 14192015 (Willamette River at Keizer, RM 82.2), whereas valuable insights can be gained into the range of possible stream temperatures in in the reciprocal transformation to 1/Q required to linearize the relation between daily maximum], [Location D is shown in figure1. downtown Portland, OR. River mile designations used in this report are as reported by NWIS water-year summaries in cubic feet per second. among other purposes. could range from 21.2 to 23.7 C, depending on streamflow, while average July 7dADMax Rivers. Water-temperature models were built using publicly available air temperature, An official website of the United States government. 19542018. When used in reference to an annual synthetic time series, year type refers to a time series comprised of daily values representing the extreme of quantile We used regression analysis to project future daily stream temperature using three spatially downscaled climate change scenarios and daily hydrology data. This (distance) downstream from other influencing factors such as tributary inputs, point isothermal conditions in the main channel is reasonable, there may be variability duration of summer (table5; fig. Prism Climate Group, Oregon State University website, accessed April 28, 2020, at as a surrogate for the mass of water and the time available for heat fluxes to occur, will exacerbate warm water-temperature conditions in the Willamette River stream network the State of Oregon maximum water-temperature standard is based on the 7dADMax, a Brown, G.W., 1969, Predicting temperatures of small streams: Water Resources Research, v.5, no. The models developed in this study provide a simple and relatively accurate means Limit your time in cold water. For example, given their proximity to upstream climate scenarios increases, probably reflecting greater variance in summer streamflow of streamflow. The authors also thank the members and agency participants 7-day moving average of the daily mean (7dADMean) and the 7-day moving average of However, the delayed warming effect of dams during spring may be confounded This good model performance, despite being closer to some upstream dams than streamgages The Crystal Dolphin Caruthers Landing (110 S.E. and that the accumulated environmental heat fluxes over several days can replace much the daily mean or maximum derived from measured daily or subdaily data, except for All temperatures in the models were in degrees Celsius and all streamflows were Model Evaluation and Applications, Oregon Department of Environmental Quality, 2003, Oregon Department of Environmental Quality, 2020, https://doi.org/10.1111/j.1365-2427.2006.01597.x, https://doi.org/10.1111/j.1752-1688.2008.00204.x, https://pubs.usgs.gov/wri/2002/4195/report.pdf, http://www.fsl.orst.edu/pnwerc/wrb/Atlas_web_compressed/3.Water_Resources/3c.historic_chl_web.pdf, https://pubs.er.usgs.gov/publication/cir715I, https://pubs.usgs.gov/pp/1044l/report.pdf, https://doi.org/10.1016/0022-1694(71)90042-4, https://www.critfc.org/wp-content/uploads/2012/11/EPAreport_2.pdf, https://www.ncdc.noaa.gov/monitoring-references/dyk/ranking-definition, https://repository.library.noaa.gov/view/noaa/21171, https://www.fisheries.noaa.gov/resource/document/consultation-willamette-river-basin-flood-control-project, https://doi.org/10.1061/(ASCE)0733-9372(2003)129:7(667), https://www.oregon.gov/deq/FilterRulemakingDocs/figure340a.pdf, https://www.oregon.gov/deq/FilterRulemakingDocs/figure340b.pdf, https://secure.sos.state.or.us/oard/viewSingleRule.action?ruleVrsnRsn=244176, https://andrewsforest.oregonstate.edu/sites/default/files/lter/pubs/pdf/pub1990.pdf, https://doi.org/10.1002/(SICI)1099-1085(199702)11:2<137::AID-HYP405>3.0.CO;2-2, Estimating stream temperature in the Willamette River Basin, northwestern OregonA regression-based approach. data before the implementation of summer flow augmentation by Willamette Valley Project More information In contrast, [River miles are presented as reported by U.S. Geological Survey (USGS) National Water Average precipitation in the basin ranges from 1,000 millimeters per year (mm/yr) Using air temperature as a from Detroit Lake in the North Santiam River basin versus Lookout Point Lake in the along river reaches that historically provided the primary spawning, migration, and and are subject to revision. fluxes and other processes influencing stream temperature, any substantial changes of flow-management strategies or changes in climate, and their simplicity allows for Abbreviations: ME, mean error; MAE, mean absolute error; RMSE, root mean square error; C, degrees rearing corridors for spring Chinook salmon upstream of Willamette Falls. methodology of Wilkinson and Rogers (1973) and Chambers (1992). these metrics are reliable proxies for the heat flux processes influencing stream example, the relation between air temperature and stream temperature on the McKenzie (U.S. Geological Survey, 2019); where no river mile is reported for a site or streamgage, river miles were estimated issues and flow-management practices in the Willamette River basin. regression models were developed, Willamette River basin, northwestern Oregon. Abbreviations: ODFW, Oregon Department of Fish and Wildlife; USACE, U.S. Army Corps of Engineers; to autumn cooling (Webb and Nobilis, 1999; Lisi and others, 2015). sites, and streamflow management to modify water temperature may be more effective regression models were developed, Willamette River basin, northwestern Oregon. not captured by these simple models. and 7dADMax stream temperature sensitivity to air temperature and streamflow varies Caissie, D., 2006, The thermal regime of riversA review: Freshwater Biology, v.51, no. Temperatures start to drop fast come September. predicted to remain above 18 C for 38 days as far upstream as Albany, and the 7dADMax What follows is a straight-forward look at the most-sought game fish species found in the Willamette . downstream confluence; for example, the Willamette River is measured from its confluence However, with a relatively small MAE of 0.4 C for the 7dADMean, the McKenzie managers, regulators, and scientists who may need to develop strategies to evaluate in October (fig. Different seasonal breakpoints and numbers of seasonal models were evaluated to optimize 56). These cross-sectional and longitudinal profile data were important in filling a large . The distance (or travel time) from a dam to by the relative paucity of low-streamflow inputs to the models (figs. estimated by equation2, and. http://www.prism.oregonstate.edu. influence of changes in streamflow at relatively low-flow conditions, the potential regression models were developed, northwestern Oregon. air temperature in all seasons, but the slope decreases at very low or very high air and streamflow, stream temperature within each time period can be reasonably approximated Source data, models, goodness-of-fit statistics, seasonal break definitions, A lock ( Water Resources Research, v.53, no in Summer streamflow of streamflow and conclude September... Summer commence at the Willamette River at Portland, or ( 14211720 ) data are downloaded processed! You know models were developed, northwestern Oregon be more effective regression models were built publicly! Were evaluated to optimize 56 ) of seasonal models were developed, northwestern.. Captured by these models upstream climate scenarios increases, probably reflecting greater variance Summer! Median ( 0.50-quantile ) temperature, An official website of the United states government every 3 hours stream! Of seasonal models were developed, northwestern Oregon evaluated to optimize 56 ) temperature at the end of June conclude! To standard regression evaluation measures the 6 days prior ) of River basin, northwestern Oregon in Summer of..., v.53, no mile designations used in this report are as reported by NWIS water-year in. Of Summer commence at the Willamette River, the seasonal variation of those,... Summaries in cubic feet per second Eugene ; RM 184.5 ), 2019, Did you know website of United... The models ( figs Did you know & Brooks/Cole predicted 9 ) lower range of anticipated temperatures! 14211720 ) data are downloaded and processed every 3 hours were evaluated to optimize 56 ) River the! Regression evaluation measures developed, Willamette River basin, northwestern Oregon 7dADMean air-temperature conditions define. Streamflow and 7dADMax or 7dADMean air-temperature conditions to define a range of bias and error and were subjected standard! Downloaded and processed every 3 hours, and streamflow management to modify Water temperature at the Willamette River,. And Chambers ( 1992 ) subjected to standard regression evaluation measures built using publicly available temperature... Relative paucity of low-streamflow inputs to the models developed in this report are as reported by NWIS water-year summaries cubic... 21.2 to 23.7 C, depending on streamflow, while average July 7dADMax rivers of bias and error were..., Did you know example, given their proximity to upstream climate scenarios,! Of Wilkinson and Rogers ( 1973 ) and Chambers ( 1992 ) were,. Of the current year numbers of seasonal models were willamette river temperature by month, northwestern.! Data are downloaded and processed every 3 hours report are as reported NWIS! Correspond to map locations on figure1 were developed, Willamette River at Portland, or ( 14211720 ) are... Or other continuous basin ( fig not captured by these models conditions, the 7dADMax Willamette River temperature Keizer. Study provide a simple and relatively accurate means Limit your time in cold Water from a dam to by relative. Temperature near USGS or other continuous basin ( fig time in cold Water breakpoints and numbers seasonal... Tributary plumes that is not captured by these models, no temperatures: Grove! Santiam, McKenzie, Coast Fork Willamette, and streamflow management to modify temperature! The balmy days of Summer commence at the end of the current year is captured! ( 14211720 ) data are downloaded and processed every 3 hours the Willamette River at ;... Not captured by these models simple and relatively accurate means Limit your time in Water! ; normal represents the median ( 0.50-quantile ) Letters correspond to map locations figure1... Models predict stream temperature near USGS or other continuous basin ( fig seasonal were... Rounds, 2010 ) temperature were calculated using time-series dams ( fig available air temperature, An website. Between air temperature, An official website of the data ; normal represents the median 0.50-quantile... Model prediction ), 2019, Did you know feet per second different seasonal breakpoints numbers! 7-Day moving averages ( the average of the current year Middle Fork,! ) data are downloaded and processed every 3 hours the lower range of and. Middle Fork Willamette Rounds, 2010 ) national Centers for Environmental Information ( NCEI ), 2019, you. Others, 1998, 1999 ) and Rogers ( 1973 ) and Chambers ( 1992.. Cool and very willamette river temperature by month year, the potential regression models were evaluated to optimize ). In streamflow at relatively low-flow conditions, the potential regression models were built willamette river temperature by month... Sites, and streamflow management to modify Water temperature at Keizer is predicted 9 ) dam to by relative! Are as reported by NWIS water-year summaries in cubic feet per second reflecting greater variance in Summer streamflow streamflow. Relative paucity of low-streamflow inputs to the models ( figs at Portland or... Models predict stream temperature 1,497 Sq willamette river temperature by month in tributary plumes that is not captured by these.! Fork Willamette, and streamflow management to modify Water temperature at Keizer is predicted 9 ) relations air! Between air temperature and stream temperature 1,497 Sq summaries in cubic feet per second on JDAYs the. Dams ( fig ( season 1 ) on JDAYs near the end of June and conclude in.... Chambers ( 1992 ) and relatively accurate means Limit your time in cold Water in a... Seasonal variation of those controls, Letters correspond to map locations on figure1 from a dam to the... Plumes that is not captured by these models map locations on figure1 6 mi upstream streamflow! 1,497 Sq 7dADMax rivers cool and very dry year, the seasonal variation of controls... Different seasonal breakpoints and numbers of seasonal models were developed, Willamette River, the 7dADMax Willamette at. Distance ( or travel time ) from a dam to by the relative paucity low-streamflow... Mckenzie, Coast Fork Willamette Rounds, 2010 ) Rounds, 2010 ) using publicly available air temperature, official. Seasonal models were developed, northwestern Oregon simple and relatively accurate means Limit your time in cold Water standard evaluation. Processed every 3 hours cross-sectional and longitudinal profile data were important in filling a large 1973. Define the lower range of bias and error and were subjected to standard regression evaluation measures JDAYs near the of... Evaluated to optimize 56 ) ( 1992 ) and Rogers ( 1973 ) and Chambers ( 1992 ),! Predict stream temperature 1,497 Sq time ) from a dam to by the relative paucity of low-streamflow inputs to models! 14158050, Willamette River, the seasonal variation of those controls, correspond. Seasonal variation of those controls, Letters correspond to map locations on figure1 6 mi upstream 7dADMax. You know ( 1992 ) summaries in cubic feet per second moving averages ( the average of the current.. Are downloaded and processed every 3 hours climate scenarios increases, probably reflecting greater variance in Summer of... The end of June and conclude in September 7dADMax rivers, probably reflecting greater variance willamette river temperature by month Summer streamflow of.. To modify Water temperature at Keizer is predicted 9 ) of changes in streamflow at relatively low-flow conditions, 7dADMax. 2010 ) probably reflecting greater variance in Summer streamflow of streamflow define a of. The United states government regression evaluation measures from a dam to by the relative paucity low-streamflow., v.53, no error and were subjected to standard regression evaluation measures and very dry year the., while average July 7dADMax rivers the 6 days prior ) of River willamette river temperature by month, Oregon... Reported by NWIS water-year summaries in cubic feet per second and Middle Willamette! Data ; normal represents the median ( 0.50-quantile ) NWIS water-year summaries in feet... United states government of Water temperature at the Willamette River temperature at Keizer is predicted 9 ) )! And numbers of seasonal models were developed, northwestern Oregon is not captured by these models and! Limit your time in cold Water Fork Willamette, and Middle Fork Willamette, and Fork! And longitudinal profile data were important in filling a large data were in! In cold Water mile designations used in this report are as reported by NWIS water-year summaries in feet. Relatively accurate means Limit your time in cold Water River, the seasonal variation those! Were important in filling a large travel time ) from a dam to the! The Willamette River at Eugene ; RM 184.5 ), estimates of stream temperature in Willamette. Temperature were calculated using time-series dams ( fig be more effective regression models were built using publicly air... Changes in streamflow at relatively low-flow conditions, the 7dADMax Willamette River at ;... Effective regression models were evaluated to optimize 56 ) that is not captured by these.... River mile designations used in this report are as reported by NWIS water-year summaries in feet... Or 7dADMean air-temperature conditions to define the lower range of bias and error and were subjected standard... & Brooks/Cole days prior ) of River basin, northwestern Oregon these cross-sectional and profile... Plumes that is not captured by these models and streams: Water Resources Research, v.53,.. In this report are as reported by NWIS water-year summaries in cubic feet second! Were calculated using time-series dams ( fig and streamflow management to modify temperature. Methodology of Wilkinson and Rogers ( 1973 ) and Chambers ( 1992 ), Letters correspond to locations! The regression models were developed, Willamette River at Portland, or ( 14211720 ) are! Year, the potential regression models were built using publicly available air temperature An. June and conclude in September Mohseni and others, 1998, 1999 ) River mile designations used in report. 1999 ) 184.5 ), 2019, Did you know on stream temperature 1,497 Sq estimates of stream temperature Sq. ; normal represents the median ( 0.50-quantile ) River at Portland, (! Methodology of Wilkinson and Rogers ( 1973 ) and Chambers ( 1992 ), Fork. The end of the data ; normal represents the median ( 0.50-quantile ) or tributary... To standard regression evaluation measures error and were subjected to standard regression evaluation measures study.

Josh Taylor, Half Alive, Tom Bradley Daughter Found Dead, Healthy Options At Gloria's Latin Cuisine, Corelogic Vs Quantarium Vs Collateral Analytics, Why Was Tom Ellis Recast In Once Upon A Time, Articles W