Rivers and Beaches (ESS/Ocean 230)Slide Number 2Slide Number 3Topics to be coveredSlide Number 5Slide Number 6Erosion counter-balances rock upliftMountain streams receive material from hillslopes and transport it to riversRivers transport material to the coastNearshore processes redistribute sediment along beaches and coastlinesTypes of beaches reflect differences in sediment sources and transportEarth Surface = where we liveRivers and beaches are part of sediment transfer systems.We’ll use 1 equation in this classTime and PlaceExams and GradingField TripsLabs/Field Trip Write UpsSlide Number 19Slide Number 20Slide Number 21Slide Number 22Slide Number 23Slide Number 24Slide Number 25Slide Number 26Slide Number 27Slide Number 28Slide Number 29Slide Number 30Slide Number 31Slide Number 32Slide Number 33Slide Number 34Slide Number 35Slide Number 36Slide Number 37Slide Number 38Slide Number 39Slide Number 40Slide Number 41Slide Number 42Slide Number 43Field TripsSlide Number 45The Big Picture = The Rock CycleMaterial eroded from mountains enters streams and rivers and is delivered to coastal environments, from where it is moved to deeper sedimentary basins that get shoved back into mountains through processes of rock uplift.The Rock CycleErosion in the Rock CycleWhat we see as rivers and beaches are rest stops for sediment moving through the eroding half of the rock cycle.Slide Number 51Rivers and Beaches (ESS/Ocean 230)Dave Montgomery Chuck Nittrouer341 Johnson Hall / 685-2560 111 Marine Sciences Building / [email protected] [email protected] Fricke112 Marine Scieces Building / 616-9407 [email protected], Dept of Earth & Space SciencesPh.D., University of California, BerkeleyDave Montgomery studies the evolution of topography and the influence of geomorphological processes on ecological systems and human societies. His work includes studies of the evolution and near-extirpation of salmon, fluvial and hillslope processes in mountain drainage basins, the evolution of mountain ranges (Cascades, Andes, and Himalaya), and the analysis of digital topography of Earth and Mars.Marine Geology and GeophysicsProfessor, School of Oceanography and Dept of Earth & Space SciencesPh.D., University of WashingtonChuck's research interests include the modern and ancient formation of sedimentary strata in continental-margin environments, and the effects of physical and biological oceanic processes on sedimentary characteristics. Ongoing research includes coastal areas of New Guinea-Australia, the Mediterranean, and US west coast. Other recent studies have been completed at the mouths of the Amazon River, Asian rivers, and off Antarctic and Alaskan glaciers.Topics to be coveredEarth Surface ProcessesMountains Rivers Beaches OceanHolistic view, including: 1) Solid Earth2) AtmosphereLinkages of all these will be an emphasis of the course.In order for there to be mountains, rocks must be uplifted above sea level.If uplift continued unopposed there would be no limit to how high mountain ranges can get.Erosion counter-balances rock upliftMountain streams receive material from hillslopes and transport it to riversRivers transport material to the coastNearshore processes redistribute sediment along beaches and coastlinesTypes of beaches reflect differences in sediment sources and transportEarth Surface = where we liveRecent Dramatic examples:Centraliarainfall landslides floodingNew Orleans/Galvestonhurricane wind storm surgeIndonesiaearthquake submarine landslide tsunamiemphasis on understanding fundamental processes, but shock and awe will come with some examplesRivers and beaches are part of sediment transfer systems.• What forms them?• What are the processes that maintain them?• Why are there different types of rivers and beaches?• What controls their distribution across Earth’s surface?We’ll use 1 equation in this classI - O = SInput minus output equals change in storage.Also known as conservation of massmeans change in something Time and PlaceLectures: M,W & F 1:30 - 2:20 75 Johnson HallLabs (5 credit): W 2:30 - 3:20 111 Johnson Hall3 or 5 credits (Natural World)Lab Fee:$30 for 3 units; $50 for 5 unitsWebsite:http://gis.ess.washington.edu/grg/courses10_11/ess230/index.htmlExams and Grading5 Nov (F) Mid-Term Exam, during class13 Dec (M) Final Exam 2:30 – 4:20 (PM)Grading:3 credits 5 creditsmidterm = 40% 35%field trip/labs = 20% 30%final = 40% 35%No make-up field trips, No extra creditField TripsA1 8 Oct (Fri) Nisqually River watershedA2 15 Oct (Fri) Nisqually River watershedB 27 Oct (Wed) Puget Sound cruiseC 6-7 Nov (Sat & Sun) Olympic Peninsula BeachesFor 3 credits; fieldtrip A is required. You are welcome to participate in additional field trips, if space is available.For 5 credits; all field trips required. Email Aaron to reserve your space on trip [email protected]/Field Trip Write UpsA field trip write up is due after each field trip, as indicated on the course syllabus.No credit if more than 2 days late…Field Trip ATrip from Mt. Rainier downstream to Nisqually River deltaEitherFriday October 8orFriday October 15All dayStart at glaciated flank of Mt. RainierMt. RainierNisqually River DeltaField Trip AFollow river system down through mountain streams and into large riversField Trip AEnd at delta system where Nisqually River empties into Puget SoundField Trip AField Trip BWorking cruise on Puget Sound with Research Vessel Thompson, UW’s oceanographic research vesselWednesday27 October All day(no class or lab)Cruise on Puget Sound in Elliot BaySample bottom sediments, measure water salinity and temperature, and map bathymetrydepth in mDuwamish delta4-m resolution, 5x VENisqually Delta, 5x VE3-m resolution, looking SWdepth inmetersField Trip CBeaches of the Olympic Peninsula6-7 NovemberSaturday and Sunday;Overnight camping in the field on Saturday night.Bring clothes for bad weather (rain, cold, wind) -- even if it doesn’t seem like you’ll need them!Field Trip TipsPlease NoteThe course puts a high premium on the learning that comes from field observations.Participation in field trips is required to get credit for field trips.There are not make-up trips or alternate work that can be substituted for the trips.If you miss one, your options are:For 3-credit registrants:1)If you miss Field Trip A, you can participate in Field Trip C;2) you can take a zero for the
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