rivers and beaches (ess/ocean 230) dave montgomery chuck nittrouer 341 johnson hall / 685-2560 111...
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Rivers and Beaches (ESS/Ocean 230)
Dave Montgomery Chuck Nittrouer341 Johnson Hall / 685-2560 111 Marine Sciences Building / 543-
[email protected] [email protected]
SeanPaul La Selle Kelly Hillbun331 Johnson Hall / 543-6267 423 Johnson Hall / [email protected] [email protected]
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Geomorphology
Professor, Dept of Earth & Space Sciences
Ph.D., University of California, Berkeley
Dave 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.
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Marine Geology and Geophysics
Professor, School of Oceanography and Dept of Earth & Space Sciences
Ph.D., University of Washington
Chuck'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.
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Topics to be covered
Earth Surface Processes
Mountains Rivers Beaches Ocean
Holistic view, including: 1) Solid Earth2) Atmosphere
Linkages of all these will be an emphasis of the course.
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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.
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Erosion counter-balances rock uplift
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Mountain streams receive material from hillslopes and transport it to
rivers
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Rivers transport material to the coast
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Nearshore processes redistribute sediment along beaches and coastlines
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Types of beaches reflect differences in sediment sources and transport
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Earth Surface = where we live
Recent Dramatic examples:
Centraliarainfall landslides flooding
New Orleans/Galvestonhurricane wind storm surge
Indonesiaearthquake submarine landslide tsunami
emphasis on understanding fundamental processes, but shock and awe will come with some examples
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Rivers 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?
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We’ll use 1 equation in this class
I - O = S
Input minus output equals change in storage.
Also known as conservation of mass
means change in something
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Time and Place
Lectures: M,W & F 1:30 - 2:20 75 Johnson HallLabs (5 credit): W 2:30 - 3:20 111 Johnson Hall
3 or 5 credits (Natural World)
Lab Fee: $30 for 3 units; $50 for 5 units
Website:http://gis.ess.washington.edu/grg/ess230/index.html
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Exams and Grading
4 Nov (F) Mid-Term Exam, during class12 Dec (M) Final Exam 2:30 – 4:20 (PM)
Grading:3 credits 5 credits
midterm = 40% 35%field trip/labs = 20% 30%final = 40% 35%
No make-up field trips, No extra credit
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Field Trips
A1 5 Oct (Wed) Nisqually River watershedA2 12 Oct (Wed) Nisqually River watershedB 19 Oct (Wed) Puget Sound cruiseC 12-13 Nov (Sat & Sun) Olympic Peninsula Beaches
For 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 SeanPaul to reserve your space on trip A
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Labs/Field Trip Write Ups
A field trip write up is due after each field trip, as indicated on the course syllabus.
No credit if more than 2 days late…
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Field Trip A
Trip from Mt. Rainier downstream to Nisqually River delta
EitherWednesday October 5
orWednesday October 12
All day
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Start at glaciated flank of Mt. Rainier
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Mt. Rainier
Nisqually River Delta
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Field Trip A
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Follow river system down through mountain streams and into large rivers
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Field Trip A
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End at delta system where Nisqually River empties into Puget Sound
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Field Trip A
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Field Trip B
Working cruise on Puget Sound with Research Vessel Thompson, UW’s oceanographic research vessel
Wednesday19 October
All day(no class or lab)
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Cruise on Puget Sound in Elliot Bay
Sample bottom sediments, measure water salinity and temperature, and map bathymetry
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depth in m Duwamish delta4-m resolution, 5x VE
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Nisqually Delta, 5x VE3-m resolution, looking SW
depth inmeters
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Field Trip C
Beaches of the Olympic Peninsula
12 - 13 November
Saturday and Sunday;Overnight camping in the field on Saturday night.
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Bring clothes for bad weather (rain, cold, wind) -- even if it doesn’t seem like you’ll need them!
Field Trip Tips
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Please Note
The 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.
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If you miss one, your options are: For 3-credit registrants:1) If you miss Field Trip A, you can go on Field Trip C;2) you can take a zero for the field trip;3) you can drop the course.
For 5-credit registrants:1) If you miss a trip, you can drop to 3 credits;2) you can take a zero in the missed trip;3) you can drop the course.
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Field Trip A will be held twice, both on Wednesdays (5 and 12 Oct).
Field Trip B will be held on a Wednesday (19 Oct).
If you need a note explaining your absence from other classes, please contact Chuck or Dave.
Contact SeanPaul ([email protected]) to sign-up for Field Trip A on either 5 or 12 Oct.
Reservations will be limited for each day, and will be accepted on a first-come basis.
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Field Trips
A1 5 Oct (Wed) Nisqually River watershedA2 12 Oct (Wed) Nisqually River watershedB 19 Oct (Wed) Puget Sound cruiseC 12-13 Nov (Sat & Sun) Olympic Peninsula Beaches
For 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 SeanPaul to reserve your space on trip A
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Source to Sink
A different way of seeing landscapes…
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The Big Picture = The Rock Cycle
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Material 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 Cycle
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The Rock Cycle
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Erosion in the Rock Cycle
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What we see as rivers and beaches are rest stops for sediment moving through
the eroding half of the rock cycle.
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Framework for this Class
Rock uplift Mountains
Mountains Mountain Streams
Mountain Streams Rivers
Rivers Estuaries
Estuaries Beaches
Beaches Off-shore depositional basins
Off-shore depositional basins Rock uplift.