Difference between revisions of "GCDAMP Sediment"

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[[File:SandbarMonitoring2016.jpg|center|500px]] [https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR3_Grams.pdf]
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[[File:SedimentSustainability.PNG|center|thumbnail|500px|https://www.usbr.gov/uc/progact/amp/twg/2022-01-13-twg-meeting/20220113-AnnualReportingMeeting-ProjectA-StreamflowWaterQualitySedimentTransportBudgetingColoradoRiverEcosystem-508-UCRO.pdf ]]  
  
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[[File:2012 2014 HFE response.jpg|center|500px]] [https://www.usbr.gov/uc/rm/amp/twg/mtgs/15jun11/Attach_02,.pdf]
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[[File:LongtermDecline.PNG|center|thumbnail|500px|https://www.usbr.gov/uc/progact/amp/twg/2022-01-13-twg-meeting/20220113-AnnualReportingMeeting-ProjectA-StreamflowWaterQualitySedimentTransportBudgetingColoradoRiverEcosystem-508-UCRO.pdf ]]  
  
−
[[File:2016 SedimentSummary.jpg|center|500px]] [https://www.usbr.gov/uc/rm/amp/twg/mtgs/16jan26/documents/AR02_Grams.pdf]
+
[[File:SandbarMonitoring2016.jpg|center|thumbnail|500px|[https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR3_Grams.pdf https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR3_Grams.pdf] ]]
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[[File:2012 2014 HFE response.jpg|center|thumbnail|500px|[https://www.usbr.gov/uc/rm/amp/twg/mtgs/15jun11/Attach_02,.pdf https://www.usbr.gov/uc/rm/amp/twg/mtgs/15jun11/Attach_02,.pdf] ]]
 +
 
 +
[[File:2016 SedimentSummary.jpg|center|thumbnail|500px|[https://www.usbr.gov/uc/rm/amp/twg/mtgs/16jan26/documents/AR02_Grams.pdf https://www.usbr.gov/uc/rm/amp/twg/mtgs/16jan26/documents/AR02_Grams.pdf] ]]  
  
 
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When the discharge of the Colorado River was lower than about 9,000 ft3/s, sand accumulated in the reach in Marble and upper Grand Canyons. At discharges higher than about 9,000 ft3/s, however, sand-transport rates at the Grand Canyon gaging station generally equaled those at the Lees Ferry gaging station, and at discharges higher than about 16,000 ft3/s, sand-transport rates at the Grand Canyon gaging station generally either equaled or exceeded those at the Lees Ferry gaging station. Thus, at discharges greater than about 9,000 ft3/s, sand was either conveyed through or eroded from the reach in Marble and upper Grand Canyons.
 
When the discharge of the Colorado River was lower than about 9,000 ft3/s, sand accumulated in the reach in Marble and upper Grand Canyons. At discharges higher than about 9,000 ft3/s, however, sand-transport rates at the Grand Canyon gaging station generally equaled those at the Lees Ferry gaging station, and at discharges higher than about 16,000 ft3/s, sand-transport rates at the Grand Canyon gaging station generally either equaled or exceeded those at the Lees Ferry gaging station. Thus, at discharges greater than about 9,000 ft3/s, sand was either conveyed through or eroded from the reach in Marble and upper Grand Canyons.
  
−
As discharges less than 9,000 ft3/s became less common, the discharge of the river became progressively more conducive to the conveyance of sand through or the erosion of sand from Marble and upper Grand Canyons.
+
As discharges less than 9,000 ft3/s became less common, the discharge of the river became progressively more conducive to the conveyance of sand through or the erosion of sand from Marble and upper Grand Canyons. [https://pubs.usgs.gov/pp/pp1677/pdf/pp1677.pdf]
−
 
+
−
*[https://pubs.usgs.gov/pp/pp1677/pdf/pp1677.pdf Computation and analysis of the instantaneous-discharge for the Colorado River at Lees Ferry, Arizona: May 8, 1921, through September 30, 2000 by David J. Topping, John C. Schmidt, and L.E. Vierra, Jr. U.S. Geological Survey professional paper ]
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*[http://gcdamp.com/index.php?title=Portal:GCDAMP_Knowlege_Assessments GCMRC Annual Reports page]
 
*[https://www.gcmrc.gov/sandbar/ GCMRC Grand Canyon Sandbar Monitoring]
 
*[https://www.gcmrc.gov/sandbar/ GCMRC Grand Canyon Sandbar Monitoring]
 
*[http://gcdamp.com/index.php?title=The_HFE_Page The High Flow Experiment (HFE) Page]
 
*[http://gcdamp.com/index.php?title=The_HFE_Page The High Flow Experiment (HFE) Page]
 
*[http://gcdamp.com/index.php?title=RECREATION Recreation Page]
 
*[http://gcdamp.com/index.php?title=RECREATION Recreation Page]
 
*[[Aeolian Sand Transport|  Aeolian Sand Transport Page]]
 
*[[Aeolian Sand Transport|  Aeolian Sand Transport Page]]
 +
*[http://gcdamp.com/index.php?title=Turbidity Turbidity Page]
 +
*[http://gcdamp.com/index.php?title=GCDAMP-_Over-Flights Over Flights Page]
  
 
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−
*[http://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09382000#/ Paria River at Lees Ferry]  
+
*[https://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/GCMRC-GCLT1 Water Holes Canyon above the mouth]
 +
*[https://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09381800 Paria River near Kanab, UT]
 +
*[https://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09382000 Paria River at Lees Ferry, AZ]
 
*[http://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09380000 Colorado River at Lees Ferry]
 
*[http://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09380000 Colorado River at Lees Ferry]
−
*[http://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09383050 Colorado River at 30 mile]
+
*[https://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/GCMRC-MCLT1 Badger Creek below highway 89A near Vermillion Cliffs, AZ]
−
*[http://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09383100 Colorado River above LCR]
+
*[https://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/GCMRC-MCLT2 Tanner Wash below highway 89A near Bitter Springs, AZ]
−
*[http://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09403000 Bright Angel Creek]
+
*[https://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/GCMRC-MCLT3 House Rock Wash above Emmett Wash near Cliff Dwellers, AZ]
 +
*[https://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/GCMRC-MCLT5 North Canyon near Cliff Dwellers, AZ]
 +
*[https://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/GCMRC-MCLT6 Shinumo Wash in Twentynine Mile Canyon near Cedar Ridge, AZ]
 +
*[http://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09383050 Colorado River near river mile 30]
 +
*[http://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09383100 Colorado River above Little Colorado River near Desert View, AZ]
 +
*[https://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09401500 Moenkopi Wash near Cameron, AZ]
 +
*[https://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09401000 Little Colorado River at Grand Falls, AZ]
 +
*[https://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09401200 Little Colorado River at Cameron, AZ]
 +
*[https://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09402000 Little Colorado River near Cameron, AZ]
 +
*[https://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09402300 Little Colorado River above the mouth near Desert View, AZ]
 +
*[https://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09402500 Colorado River near Grand Canyon, AZ]
 +
*[http://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09403000 Bright Angel Creek near Grand Canyon, AZ]
 
*[http://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/GCMRC-MCLT6 Shinumo Creek]
 
*[http://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/GCMRC-MCLT6 Shinumo Creek]
−
*[http://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09402352 Colorado River abv Lava Canyon rm66]
+
*[http://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09403850 Kanab Creek above the mouth near Supai, AZ]
−
*[http://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09403270 Colorado River bl rm127]
+
*[http://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09404115 Havasu Creek above the mouth near Supai, AZ]
−
*[http://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09403850 Kanab Creek]
+
*[http://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09404120 Colorado River above National Canyon near Supai, AZ]
−
*[http://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09404115 Havasu Creek]
+
*[http://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09404200 Colorado River above Diamond Creek near Peach Springs, AZ]
−
*[http://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09404120 Colorado River abv National Canyon]
+
−
*[http://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09404200 Colorado River bl Diamond Creek]
+
−
*[http://www.gcmrc.gov/discharge_qw_sediment/station/GCDAMP/09404220 Colorado River abv Spencer rm246]
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'''2024'''
 +
*[[Media:Sartain_AGU2023_poster_ARM.pdf| Assessing geomorphic change for 454 river km of the Colorado River in Grand Canyon, AZ via continuous and high-resolution water surface and bed profiles
 +
]]
 +
*[[Media:Kaplinski_Glen_canyon_flow_model_poster_20240114.pdf| Hydrodynamic modeling of the Colorado River between Glen Canyon Dam and Lees Ferry, Arizona]]
 +
 +
'''2023'''
 +
*[https://www.usbr.gov/uc/progact/amp/twg/2023-01-26-twg-meeting/20230126-AnnualReportingMeeting-AContinuousHigh-ResolutionProfileRiverbedWaterSurface460-kmColoradoRiverGrandCanyon-508-UCRO.pdf A Continuous High-Resolution Profile of the Riverbed and Water Surface for 460-km of the Colorado River in Grand Canyon]
 +
*[https://www.usbr.gov/uc/progact/amp/twg/2023-01-26-twg-meeting/20230126-AnnualReportingMeeting-StreamflowSedimentVegetationDynamics-508-UCRO.pdf Project A: Streamflow, Sediment, and Vegetation Dynamics; Implications for Geomorphic Change in the Colorado River and its Tributaries]
 +
*[https://www.usbr.gov/uc/progact/amp/twg/2023-01-26-twg-meeting/20230126-AnnualReportingMeeting-StreamflowWaterQualitySedimentTransportBudgetingColoradoRiverEcosystem-508-UCRO.pdf Project A: Streamflow, Water Quality, and Sediment Transport and Budgeting in the Colorado River Ecosystem]
 +
*[[Media:ARM_salter.pdf| Numerical Modeling of Mud Transport, Storage, and Release on the Colorado River, Arizona]]
 +
 +
'''2022'''
 +
*[https://www.usbr.gov/uc/progact/amp/amwg/2022-08-18-amwg-meeting/20220818-Grams_Sandbars_AMWG_BAO_508.pdf Multi-Decadal Sandbar Response to Flow Management Downstream from a Large Dam-The Glen Canyon Dam on the Colorado River in Marble and Grand Canyons, AZ ]
 +
*[https://www.usbr.gov/uc/progact/amp/amwg/2022-02-10-amwg-meeting/20220210-SummarySedimentSandbarProjects-508-UCRO.pdf Summary of Sediment and Sandbar Projects GCMRC Projects A and B LTEMP Goal 7 ]
 +
*[https://www.usbr.gov/uc/progact/amp/twg/2022-01-13-twg-meeting/20220113-AnnualReportingMeeting-ProjectA-StreamflowWaterQualitySedimentTransportBudgetingColoradoRiverEcosystem-508-UCRO.pdf Project A: Streamflow, Water Quality, and Sediment Transport and Budgeting in the Colorado River Ecosystem ]
 +
 +
'''2021'''
 +
*[[Media:Glen Canyon Sand Augmentation White Paper.pdf| Argonne. 2021. Evaluation of Sand Augmentation for Stabilizing Recreational Beaches and Storing Sand in Glen Canyon National Recreation Area]]
 +
*[https://www.usbr.gov/uc/progact/amp/twg/2021-10-14-twg-meeting/20211014-MorphodynamicModelEvaluateSandbarRebuilding-Presentation-508-UCRO.pdf A simple morphodynamic model to rapidly evaluate sandbar rebuilding during controlled floods]
 +
*[https://doi.org/10.1029/2020JF005565 Topping et al. 2021, Self-limitation of sand storage in a bedrock-canyon river arising from the interaction of flow and grain size: Journal of Geophysical Research: Earth Surface]
 +
*[https://doi.org/10.1029/2021JF006149 Alvarez et al. 2021, An eddy-resolving numerical model to study turbulent flow, sediment, and bed evolution using detached eddy simulation in a lateral separation zone at the field-scale: Journal of Geophysical Research—Earth Surface]
 +
*[https://www.usbr.gov/uc/progact/amp/amwg/2021-02-11-amwg-meeting/20210211-SandSupplyTransportDeposition-508-UCRO.pdf Sand Supply, Transport and Deposition ]
 +
 +
'''2020'''
 +
*[https://doi.org/10.1029/2019JF005226 Rubin et al., 2020, Causes of variability in suspended‐sand concentration evaluated using measurements in the Colorado River in Grand Canyon: JGR Earth Surface]
 +
*[https://www.usbr.gov/uc/progact/amp/amwg/2020-02-12-amwg-meeting/20200212-GCMRCScienceUpdatesPart3-Presentation-508-UCRO.pdf GCMRC 2019 Annual Reporting Meeting Overview – Part 3 ]
 +
*[https://doi.org/10.1130/B35642.1 Chapman et al., 2020, Estimating the contribution of tributary sand inputs to controlled flood deposits for sandbar restoration using elemental tracers, Colorado River, Grand Canyon National Park, Arizona: GSA Bulletin] [https://doi.org/10.5066/P9C0IN56 Associated data]
 +
*[https://www.usbr.gov/uc/progact/amp/twg/2020-01-13-twg-meeting/20200113-AnnualReportingMeeting-ProjectBEffectsDamReleaseSedimentStorageSandbarDynamics-Presentation-508-UCRO.pdf Project B: Effects of dam releases on in-channel sediment storage and sandbar dynamics ]
 +
*[https://doi.org/10.1029/2019WR025883 Ashley et al., 2020, Estimating bedload from suspended load and water discharge in sand bed rivers: Water Resources Research.]
 +
*[https://www.usbr.gov/uc/progact/amp/twg/2020-01-13-twg-meeting/20200113-AnnualReportingMeeting-GeomorphicChangeBiogeomorphicFeedbacksLittleColoradoRiver-Presentation-508-UCRO.pdf Geomorphic Change and Biogeomorphic Feedbacks in the Little Colorado River, Arizona ]
 +
 +
'''2019'''
 +
*[https://doi.org/10.1130/B35047.1 Dean, D.J., and Topping, D.J., 2019, Geomorphic change and biogeomorphic feedbacks in a dryland river--The Little Colorado River, Arizona, USA: GSA Bulletin ]
  
 
'''2018'''
 
'''2018'''
−
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/18jan25/AR02.pdf Key drivers of sand transport and storage in the Colorado River Ecosystem PPT]
+
*[https://qcnr.usu.edu/wats/colorado_river_studies/files/documents/Rubin.pdf Sand tells a story]
 +
*[https://doi.org/10.5066/P99TN424 Sankey et al., 2018, Sand classifications along the Colorado River in Grand Canyon derived from 2002, 2009, and 2013 high-resolution multispectral airborne imagery: U.S. Geological Survey data release]
 +
*[https://www.usbr.gov/uc/progact/amp/amwg/2018-08-22-amwg-meeting/Attach_12.pdf GCMRC Science Updates PPT]
 +
*[https://doi.org/10.1002/rra.3349 Hadley et al., 2018, Quantifying geomorphic and vegetation change at sandbar campsites in response to flow regulation and controlled floods, Grand Canyon National Park, Arizona: River Research  and Applications]
 +
*[https://www.usbr.gov/uc/progact/amp/twg/2018-01-25-twg-meeting/AR02.pdf Key drivers of sand transport and storage in the Colorado River Ecosystem PPT]
 
*[https://doi.org/10.5194/hess-22-1767-2018 Voichick, N. et al., 2018, Technical note--False low turbidity readings during high suspended-sediment concentrations: Hydrology and Earth System Sciences]
 
*[https://doi.org/10.5194/hess-22-1767-2018 Voichick, N. et al., 2018, Technical note--False low turbidity readings during high suspended-sediment concentrations: Hydrology and Earth System Sciences]
 
*[https://doi.org/10.3133/ofr20181019 Grams et al., 2018, Automated remote cameras for monitoring alluvial sandbars on the Colorado River in Grand Canyon, Arizona: Open-File Report]
 
*[https://doi.org/10.3133/ofr20181019 Grams et al., 2018, Automated remote cameras for monitoring alluvial sandbars on the Colorado River in Grand Canyon, Arizona: Open-File Report]
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*[https://doi.org/10.1016/j.geomorph.2017.08.037 Griffiths and Topping, 2017, Importance of measuring discharge and sediment transport in lesser tributaries when closing sediment budgets: Geomorphology]
 
*[https://doi.org/10.1016/j.geomorph.2017.08.037 Griffiths and Topping, 2017, Importance of measuring discharge and sediment transport in lesser tributaries when closing sediment budgets: Geomorphology]
 
*[https://doi.org/10.3133/ofr20171030 Kaplinski et al. 2017. Channel mapping river miles 29–62 of the Colorado River in Grand Canyon National Park, Arizona, May 2009: U.S. Geological Survey Open-File Report 2017–1030]
 
*[https://doi.org/10.3133/ofr20171030 Kaplinski et al. 2017. Channel mapping river miles 29–62 of the Colorado River in Grand Canyon National Park, Arizona, May 2009: U.S. Geological Survey Open-File Report 2017–1030]
−
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR1_Topping.pdf Project 1: Streamflow, Water Quality, Sediment Transport, and Sand Budgets in the Colorado River Ecosystem ]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2017-01-26-twg-meeting/AR1_Topping.pdf Project 1: Streamflow, Water Quality, Sediment Transport, and Sand Budgets in the Colorado River Ecosystem ]
−
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR2_Dean.pdf Project 2: Hydrologic Change and the Geomorphic Transformation of the Little Colorado River: Implications for Sediment Delivery to the Grand Canyon ]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2017-01-26-twg-meeting/AR2_Dean.pdf Project 2: Hydrologic Change and the Geomorphic Transformation of the Little Colorado River: Implications for Sediment Delivery to the Grand Canyon ]
−
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR3_Grams.pdf Sandbars and Sediment Storage in Marble and Grand Canyons: Response to Recent High-flow Experiments and Long-term Trends ]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2017-01-26-twg-meeting/AR3_Grams.pdf Sandbars and Sediment Storage in Marble and Grand Canyons: Response to Recent High-flow Experiments and Long-term Trends ]
  
 
'''2016'''
 
'''2016'''
 
*[https://pubs.er.usgs.gov/publication/pp1823 Topping et al. 2016. Long-term continuous acoustical suspended-sediment measurements in rivers — Theory, application, bias, and error: U.S. Geological Survey Professional Paper 1823]
 
*[https://pubs.er.usgs.gov/publication/pp1823 Topping et al. 2016. Long-term continuous acoustical suspended-sediment measurements in rivers — Theory, application, bias, and error: U.S. Geological Survey Professional Paper 1823]
−
*[http://pubs.usgs.gov/fs/2016/3053/fs20163053.pdf Voichick et al. 2016. Water clarity of the Colorado River—Implications for food webs and fish communities: U.S. Geological Survey Fact Sheet 2016–3053]
+
*[https://www.usbr.gov/uc/progact/amp/amwg/2016-08-24-amwg-meeting/Attach_11a.pdf Sandbar Modeling Project Update]
−
*[http://www.usbr.gov/uc/rm/amp/amwg/mtgs/16aug24/Attach_11a.pdf Sandbar Modeling Project Update]
+
*[https://www.usbr.gov/uc/progact/amp/amwg/2016-08-24-amwg-meeting/Attach_07b.pdf Status of Sediment Resources – August 2016]
−
*[http://www.usbr.gov/uc/rm/amp/amwg/mtgs/16aug24/Attach_07b.pdf Status of Sediment Resources – August 2016]
+
*[https://www.usbr.gov/uc/progact/amp/amwg/2016-08-24-amwg-meeting/Attach_07a.pdf Grand Canyon Monitoring and Research Center Science Updates and PPT (BO Compliance, Trout Updates, Green Sunfish, Fisheries PEP, Partners in Science)]
−
*[http://www.usbr.gov/uc/rm/amp/amwg/mtgs/16aug24/Attach_07a.pdf Grand Canyon Monitoring and Research Center Science Updates and PPT (BO Compliance, Trout Updates, Green Sunfish, Fisheries PEP, Partners in Science)]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2016-02-26-twg-meeting/AR03_Buscombe.pdf Observations of sand dune migration on the Colorado River in Grand Canyon using high-resolution multibeam bathymetry]
−
*[http://www.usbr.gov/uc/rm/amp/twg/mtgs/16jan26/documents/AR03_Buscombe.pdf Observations of sand dune migration on the Colorado River in Grand Canyon using high-resolution multibeam bathymetry]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2016-02-26-twg-meeting/AR01_Topping.pdf Project 2: Streamflow,  Water Quality, Sediment Transport, and Sand Budgets in the Colorado River Ecosystem]
−
*[http://www.usbr.gov/uc/rm/amp/twg/mtgs/16jan26/documents/AR01_Topping.pdf Project 2: Streamflow,  Water Quality, Sediment Transport, and Sand Budgets in the Colorado River Ecosystem]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2016-02-26-twg-meeting/AR02_Grams.pdf Sandbars and Sediment Storage in Marble and Grand Canyons: Response to Recent high-flow Experiments and Long-Term Trends]
−
*[http://www.usbr.gov/uc/rm/amp/twg/mtgs/16jan26/documents/AR02_Grams.pdf Sandbars and Sediment Storage in Marble and Grand Canyons: Response to Recent high-flow Experiments and Long-Term Trends]
+
  
 
'''2015'''
 
'''2015'''
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*[http://repository.asu.edu/items/30069 Alvarez. 2015. Turbulence, Sediment Transport, Erosion, and Sandbar Beach Failure Processes in Grand Canyon. Ph.D. Dissertation, Arizona State University, Tempe, AZ]
 
*[http://repository.asu.edu/items/30069 Alvarez. 2015. Turbulence, Sediment Transport, Erosion, and Sandbar Beach Failure Processes in Grand Canyon. Ph.D. Dissertation, Arizona State University, Tempe, AZ]
 
*[https://drive.google.com/file/d/0BwY-Z2c3NTUGeUVIWEwyY1l6RUE/view GCMRC Science Update - Sediment]
 
*[https://drive.google.com/file/d/0BwY-Z2c3NTUGeUVIWEwyY1l6RUE/view GCMRC Science Update - Sediment]
−
*[http://www.usbr.gov/uc/rm/amp/twg/mtgs/15jun11/Attach_02,.pdf GCMRC Science Update - Sediment]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2015-06-11-twg-meeting/Attach_02,.pdf GCMRC Science Update - Sediment]
 
*[https://drive.google.com/file/d/0BwY-Z2c3NTUGQURtV2s3eWJqRHM/view Updates on 2014 HFE, Paria sediment inputs, and sediment mass balance]
 
*[https://drive.google.com/file/d/0BwY-Z2c3NTUGQURtV2s3eWJqRHM/view Updates on 2014 HFE, Paria sediment inputs, and sediment mass balance]
−
*[http://www.usbr.gov/uc/rm/amp/twg/mtgs/15apr21/Attach_11.pdf Glen Canyon Tailwater Fishery “Integrating Fish and Channel Mapping]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2015-04-21-twg-meeting/Attach_11.pdf Glen Canyon Tailwater Fishery “Integrating Fish and Channel Mapping”]
−
*[http://www.usbr.gov/uc/rm/amp/twg/mtgs/15apr21/Attach_13.pdf GCMRC’s Online Mapping and GIS Resources]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2015-04-21-twg-meeting/Attach_13.pdf GCMRC’s Online Mapping and GIS Resources]
−
*[http://www.usbr.gov/uc/rm/amp/twg/mtgs/15jan20/Attach_01.pdf Streamflow, Water Quality, and Sediment Transport in the Colorado River Ecosystem]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2015-01-20-twg-meeting/Attach_01.pdf Streamflow, Water Quality, and Sediment Transport in the Colorado River Ecosystem]
−
*[http://www.usbr.gov/uc/rm/amp/twg/mtgs/15jan20/Attach_02.pdf Sandbars and Sediment Storage in Marble and Grand Canyons: Response to Recent High-flow Experiments and Long-term Trends]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2015-01-20-twg-meeting/Attach_02.pdf Sandbars and Sediment Storage in Marble and Grand Canyons: Response to Recent High-flow Experiments and Long-term Trends]
−
*[http://www.usbr.gov/uc/rm/amp/twg/mtgs/15apr21/Attach_11.pdf Glen Canyon Tailwater Fishery “Integrating Fish and Channel Mapping]
+
−
*[http://www.usbr.gov/uc/rm/amp/twg/mtgs/15apr21/Attach_13.pdf GCMRC’s Online Mapping and GIS Resources]
+
  
 
'''2014'''
 
'''2014'''
−
*[http://www.usbr.gov/uc/rm/amp/amwg/mtgs/14aug27/Attach_04a.pdf Science Updates - Recent Research on Sand, Bugs, and Fish ]
+
*[https://www.usbr.gov/uc/progact/amp/amwg/2014-08-27-amwg-meeting/Attach_04a.pdf Science Updates - Recent Research on Sand, Bugs, and Fish ]
−
*[http://www.usbr.gov/uc/rm/amp/amwg/mtgs/14aug27/index.html Measuring Bed Sediments to Improve Sediment Budgets and Physical Habitat Assessment ]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2014-01-30-twg-meeting/AR_Grams_Sandbar_Storage.pdf Sandbars and Sand Storage in Marble and Grand Canyons (Grams) ]
−
*[http://www.usbr.gov/uc/rm/amp/amwg/mtgs/14aug27/index.html Status of Sediment Resources ]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2014-01-30-twg-meeting/AR_Griffiths_Processing.pdf Processing fine sediment transport data: procedures, processing, and bottlenecks (Griffiths) ]
−
*[http://www.usbr.gov/uc/rm/amp/twg/mtgs/14jan30/AR_Grams_Sandbar_Storage.pdf Sandbars and Sand Storage in Marble and Grand Canyons (Grams) ]
+
−
*[http://www.usbr.gov/uc/rm/amp/twg/mtgs/14jan30/AR_Griffiths_Processing.pdf Processing fine sediment transport data: procedures, processing, and bottlenecks (Griffiths) ]
+
  
 
'''2013'''
 
'''2013'''
 
*[https://asu.pure.elsevier.com/en/publications/erosion-of-river-sandbars-by-diurnal-stage-fluctuations-in-the-co Alvarez and Schmeeckle. 2013. Erosion of river sandbars by diurnal stage fluctuations in the Colorado river in the Marble and Grand Canyons: Full-scale laboratory experiments]
 
*[https://asu.pure.elsevier.com/en/publications/erosion-of-river-sandbars-by-diurnal-stage-fluctuations-in-the-co Alvarez and Schmeeckle. 2013. Erosion of river sandbars by diurnal stage fluctuations in the Colorado river in the Marble and Grand Canyons: Full-scale laboratory experiments]
 
*[http://www.usbr.gov/uc/rm/amp/twg/mtgs/13nov06/Attach_02a.pdf GCMRC Update - Status of Resources and Sediment Conditions]
 
*[http://www.usbr.gov/uc/rm/amp/twg/mtgs/13nov06/Attach_02a.pdf GCMRC Update - Status of Resources and Sediment Conditions]
−
*[https://www.usbr.gov/uc/rm/amp/amwg/mtgs/13aug08/Attach_06d.pdf Present Status of Sediment Resources-August 2013]
+
*[https://www.usbr.gov/uc/progact/amp/amwg/2013-08-08-amwg-meeting/Attach_06d.pdf Present Status of Sediment Resources-August 2013]
−
*[https://www.usbr.gov/uc/rm/amp/amwg/mtgs/13aug08/Attach_06a.pdf Science Updates - Overflights, Riparian Vegetation, and Sediment]
+
*[https://www.usbr.gov/uc/progact/amp/amwg/2013-08-08-amwg-meeting/Attach_06a.pdf Science Updates - Overflights, Riparian Vegetation, and Sediment]
−
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/13jun26/Attach_07a.pdf 2013 Overflight Wrap up]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2013-06-26-twg-meeting/Attach_07a.pdf 2013 Overflight Wrap up]
−
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/13jun26/Attach_07b.pdf GCMRC Science Update on Sediment and Fisheries]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2013-06-26-twg-meeting/Attach_07b.pdf GCMRC Science Update on Sediment and Fisheries]
−
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/13jan24/15_Topping.pdf Sediment Monitoring Program: Sediment Delivery from Tributaries and Sediment Transport by Colorado River]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2013-01-24-twg-meeting/15_Topping.pdf Sediment Monitoring Program: Sediment Delivery from Tributaries and Sediment Transport by Colorado River]
−
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/13jan24/16_Grams.pdf Sandbar Monitoring for November 2012 Controlled Flood]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2013-01-24-twg-meeting/16_Grams.pdf Sandbar Monitoring for November 2012 Controlled Flood]
  
 
'''2012'''
 
'''2012'''
−
*[https://www.usbr.gov/uc/rm/amp/amwg/mtgs/12aug29/Attach_04a.pdf GCMRC Updates and Sediment Update ]
+
*[https://www.usbr.gov/uc/progact/amp/amwg/2012-08-29-amwg-meeting/Attach_04a.pdf GCMRC Updates and Sediment Update ]
−
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/12jun20/Attach_09.pdf E-mail to TWG with Sediment Model Link]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2012-06-20-twg-meeting/Attach_09.pdf E-mail to TWG with Sediment Model Link]
−
*[https://www.usbr.gov/uc/rm/amp/amwg/mtgs/12feb22/Attach_08.pdf GCMRC Updates and PPT]
+
*[https://www.usbr.gov/uc/progact/amp/amwg/2012-02-22-amwg-meeting/Attach_08.pdf GCMRC Updates and PPT]
 
*[https://www.gcmrc.gov/about/ka/KA%202%20-%201-31-12/PM%20Talks/Grams%200400-0500.pdf Sandbars and In-Channel Sand Storage: Short-Term Dynamics and Long-Term Trends ]
 
*[https://www.gcmrc.gov/about/ka/KA%202%20-%201-31-12/PM%20Talks/Grams%200400-0500.pdf Sandbars and In-Channel Sand Storage: Short-Term Dynamics and Long-Term Trends ]
 
*[https://www.gcmrc.gov/about/ka/KA%202%20-%201-31-12/PM%20Talks/Topping%200200-0300.pdf Physical controls on sediment deposition, erosion, and transport ]
 
*[https://www.gcmrc.gov/about/ka/KA%202%20-%201-31-12/PM%20Talks/Topping%200200-0300.pdf Physical controls on sediment deposition, erosion, and transport ]
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'''2011'''
 
'''2011'''
−
*[http://www.usbr.gov/uc/rm/amp/amwg/mtgs/11aug24/Attach_06.pdf GCMRC update on Chub, Temperature, and Sediment]
+
*[https://www.usbr.gov/uc/progact/amp/amwg/2011-08-24-amwg-meeting/Attach_06.pdf GCMRC Updates]
−
*[https://www.usbr.gov/uc/rm/amp/amwg/mtgs/11aug24/Attach_06.pdf GCMRC Updates]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2011-06-28-twg-meeting/Attach_05.pdf Update on Sand Mass Balance with Modeling]
−
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/11jun28/Attach_05.pdf Update on Sand Mass Balance with Modeling]
+
−
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/11jun28/Attach_05.pdf  Grand Canyon Monitoring and Research Center Updates ]
+
  
 
'''2010'''
 
'''2010'''
−
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/10nov15/Attach_11d.pdf Update on Water Quality and 2010 Sand Input ]
+
*[https://pubs.usgs.gov/of/2010/1133/OFR_2010-1133.pdf Wright, S.A., and Grams, P.E., 2010, Evaluation of Water Year 2011 Glen Canyon Dam flow release scenarios on downstream sand storage along the Colorado River in Arizona: U.S. Geological Survey Open-File Report 2010-1133]
−
*[https://www.usbr.gov/uc/rm/amp/amwg/mtgs/10aug24/Attach_03a.pdf Grand Canyon Monitoring and Research Updates and the Following Open File Reports: 1) Evaluation of Water Year 2011 Glen Canyon Dam Flow Release Scenarios on Downstream Sand Storage Along the Colorado River in Arizona, and 2) An Approach to Modeling Sediment Budgets in Supply-limited Rivers]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2010-11-15-twg-meeting/Attach_11d.pdf Update on Water Quality and 2010 Sand Input ]
−
*[https://www.usbr.gov/uc/rm/amp/amwg/mtgs/10aug24/Attach_03b.pdf Report on Sediment Modeling to Support Development of 2011 Hydrograph]
+
*[https://www.usbr.gov/uc/progact/amp/amwg/2010-08-24-amwg-meeting/Attach_03a.pdf Grand Canyon Monitoring and Research Updates and the Following Open File Reports: 1) Evaluation of Water Year 2011 Glen Canyon Dam Flow Release Scenarios on Downstream Sand Storage Along the Colorado River in Arizona, and 2) An Approach to Modeling Sediment Budgets in Supply-limited Rivers]
−
*[https://www.usbr.gov/uc/rm/amp/amwg/mtgs/10aug24/Attach_03c.pdf Update on 2010 Sediment Inputs]
+
*[https://www.usbr.gov/uc/progact/amp/amwg/2010-08-24-amwg-meeting/Attach_03b.pdf Report on Sediment Modeling to Support Development of 2011 Hydrograph]
−
*[https://www.usbr.gov/uc/rm/amp/amwg/mtgs/10aug24/Attach_12a.pdf Temperature Control Device and Sediment Augmentation Report]
+
*[https://www.usbr.gov/uc/progact/amp/amwg/2010-08-24-amwg-meeting/Attach_03c.pdf Update on 2010 Sediment Inputs]
−
*[https://www.usbr.gov/uc/rm/amp/amwg/mtgs/10aug24/Attach_12b.pdf TWG Chair Temperature Control Device/Sediment Augmentation]
+
*[https://www.usbr.gov/uc/progact/amp/amwg/2010-08-24-amwg-meeting/Attach_12a.pdf Temperature Control Device and Sediment Augmentation Report]
−
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/10jun29/Attach_01b.pdf Minutes from June 21, 2010, TWG Webinar/Conference Call with Memo from John Hamill to Shane Capron dated May 17, 2010, Subject: TWG and stakeholder requests for GCMRC to evaluate the effects of various dam operation scenarios on sediment storage and loss in the Grand Canyon with Open File Report 2010-1133]
+
*[https://www.usbr.gov/uc/progact/amp/amwg/2010-08-24-amwg-meeting/Attach_12b.pdf TWG Chair Temperature Control Device/Sediment Augmentation]
−
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/10jun29/Attach_10.pdf Mechanics and Modeling of Flow, Sediment Transport and Morphologic Change in Riverine Lateral Separation Zones]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2010-06-29-twg-meeting/Attach_01b.pdf Minutes from June 21, 2010, TWG Webinar/Conference Call with Memo from John Hamill to Shane Capron dated May 17, 2010, Subject: TWG and stakeholder requests for GCMRC to evaluate the effects of various dam operation scenarios on sediment storage and loss in the Grand Canyon with Open File Report 2010-1133]
−
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/10mar15/Attach_07.pdf Sediment and Temperature Modeling Update PPT as presented at January 2010 Annual Reporting Meeting]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2010-06-29-twg-meeting/Attach_10.pdf Mechanics and Modeling of Flow, Sediment Transport and Morphologic Change in Riverine Lateral Separation Zones]
−
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/10jan21/Attach_07.pdf AIF: Temperature Control Device and Sediment Augmentation and PPT]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2010-03-15-twg-meeting/Attach_07.pdf Sediment and Temperature Modeling Update PPT as presented at January 2010 Annual Reporting Meeting]
 +
*[https://www.usbr.gov/uc/progact/amp/twg/2010-01-21-twg-meeting/Attach_07.pdf AIF: Temperature Control Device and Sediment Augmentation and PPT]
  
 
'''2009'''
 
'''2009'''
−
*[https://www.usbr.gov/uc/rm/amp/twg/mtgs/09sep29/Attach_06.pdf Grand Canyon Monitoring and Research Center Updates]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2009-09-29-twg-meeting/Attach_14.pdf Selective Withdrawal and Sediment Augmentation Update PPT]
−
*[https://www.usbr.gov/uc/rm/amp/amwg/mtgs/09apr29/Attach_03a.pdf AIF: Grand Canyon Monitoring and Research Center (GCMRC) Update]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2009-09-29-twg-meeting/Attach_06.pdf Grand Canyon Monitoring and Research Center Updates]
−
*[https://www.usbr.gov/uc/rm/amp/amwg/mtgs/09apr29/Attach_03d.pdf Water Quality and Sediment, 2008 High Flow Experiment, and Integrated Flow, Temperature, and Sediment Modeling PPT]
+
*[https://www.usbr.gov/uc/progact/amp/twg/2009-06-22-twg-meeting/Attach_04.pdf Sandbar Evolution: Extending the Historical Perspective PPT]
 +
*[https://www.usbr.gov/uc/progact/amp/amwg/2009-04-29-amwg-meeting/Attach_03a.pdf AIF: Grand Canyon Monitoring and Research Center (GCMRC) Update]
 +
*[https://www.usbr.gov/uc/progact/amp/amwg/2009-04-29-amwg-meeting/Attach_03d.pdf Water Quality and Sediment, 2008 High Flow Experiment, and Integrated Flow, Temperature, and Sediment Modeling PPT]
 +
*[https://www.usbr.gov/uc/progact/amp/twg/2009-03-16-twg-meeting/Attach_05.pdf Grand Canyon Monitoring and Research Center updates by Program Managers]
 +
*[https://www.usbr.gov/uc/progact/amp/twg/2009-03-16-twg-meeting/Attach_10.pdf Diamond Creek Gage Discontinuation]
  
 
'''2003'''
 
'''2003'''
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|-
 
|-
 
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|style="color:#000;"|
−
 
−
==[http://hachcompany.custhelp.com/app/answers/answer_view/a_id/1000336/~/what-is-the-difference-between-the-turbidity-units-ntu,-fnu,-ftu,-and-fau%3F-what Measuring turbidity]==
 
−
 
−
Question: What is the difference between the turbidity units NTU, FNU, FTU, and FAU? What is a JTU?
 
−
 
−
Summary: Turbidity units NTU, FNU, FTU, FAU, and JTU
 
−
 
−
Answer:
 
−
*NTU stands for Nephelometric Turbidity Unit and signifies that the instrument is measuring scattered light from the sample at a 90-degree angle from the incident light.
 
−
*FNU stands for Formazin Nephelometric Units and also signifies that the instrument is measuring scattered light from the sample at a 90-degree angle from the incident light. FNU is most often used when referencing the ISO 7027 (European) turbidity method.
 
−
*NTU is most often used when referencing the USEPA Method 180.1 or Standard Methods For the Examination of Water and Wastewater. 
 
−
*When formazin was initially adopted as the primary reference standard for turbidity, units of FTU or Formazin Turbidity Units were used. These units, however, do not specify how the instrument measures the sample.
 
−
 
−
FAU or Formazin Attenuation Units signify that the instrument is measuring the decrease in transmitted light through the sample at an angle of 180 degrees to the incident light. This type of measurement is often made in a spectrophotometer or colorimeter and is not considered a valid turbidity measurement by most regulatory agencies.
 
−
 
−
A JTU or Jackson Turbidity Unit is a historical unit used when measurements were made visually using a Jackson Candle Turbidimeter. Water was poured into a tube until a flame underneath the tube could no longer be distinguished.
 
−
 
−
The turbidity units NTU, FNU, FTU, AND FAU are all based on calibrations using the same formazin primary standards. Therefore when a formazin standard is measured, the value for each of these units will be the same, however the value on samples may differ significantly.
 
  
 
----
 
----

Revision as of 17:04, 5 February 2024
The Paria River flowing into the mainstem Colorado River‎

Sediment and Geomorphology

Erosion of sandbars (beaches) along the Colorado River in Grand Canyon was first reported in the early 1970s, approximately 10 years after completion of Glen Canyon Dam. Since then, scientific studies have been conducted to monitor changes in sandbars and changes in the amount of sand stored on the bed of the river. One of the outcomes of these studies has been the implementation of flow experiments intended to rebuild eroded sandbars, especially by the release of controlled floods, also called High Flow Experiments, or HFEs, from Glen Canyon Dam. The sediment and geomorphology projects at Grand Canyon Monitoring and Research Center include the collection and processing of data to provide information needed to conduct controlled floods and to evaluate the outcome of each controlled flood and the long-term effects of controlled floods and normal dam operations on sediment-related resources. [1]

Beginning in 1998, recreational campsite area has also been measured on a subset of the sandbar monitoring sites. Campsite areas are defined as areas that are flat (less than 8 degree slope), smooth (not rocky), and clear of dense vegetation. Monitoring data show that vegetation expansion and sandbar erosion/deposition contribute to reductions in campsite area.

LTEMP Resource Goal for Sediment

Increase and retain fine sediment volume, area, and distribution in the Glen, Marble, and Grand Canyon reaches above the elevation of the average base flow for ecological, cultural, and recreational purposes.

Desired Future Condition for Sediment-Related Resources

High elevation open riparian sediment deposits along the Colorado River in sufficient volume, area, and distribution so as to provide habitat to sustain native biota and desired ecosystem processes
• Nearshore habitats for native fish
• Marsh and riparian habitat for fish (food chain maintenance)
• Cultural resource preservation
• Maintenance of camping beaches

---
 ---
 ---

Updates

https://www.usbr.gov/uc/progact/amp/twg/2022-01-13-twg-meeting/20220113-AnnualReportingMeeting-ProjectA-StreamflowWaterQualitySedimentTransportBudgetingColoradoRiverEcosystem-508-UCRO.pdf
https://www.usbr.gov/uc/progact/amp/twg/2022-01-13-twg-meeting/20220113-AnnualReportingMeeting-ProjectA-StreamflowWaterQualitySedimentTransportBudgetingColoradoRiverEcosystem-508-UCRO.pdf
https://www.usbr.gov/uc/rm/amp/twg/mtgs/17jan26/AR3_Grams.pdf
https://www.usbr.gov/uc/rm/amp/twg/mtgs/15jun11/Attach_02,.pdf
https://www.usbr.gov/uc/rm/amp/twg/mtgs/16jan26/documents/AR02_Grams.pdf

Sediment transport and river discharge

When the discharge of the Colorado River was lower than about 9,000 ft3/s, sand accumulated in the reach in Marble and upper Grand Canyons. At discharges higher than about 9,000 ft3/s, however, sand-transport rates at the Grand Canyon gaging station generally equaled those at the Lees Ferry gaging station, and at discharges higher than about 16,000 ft3/s, sand-transport rates at the Grand Canyon gaging station generally either equaled or exceeded those at the Lees Ferry gaging station. Thus, at discharges greater than about 9,000 ft3/s, sand was either conveyed through or eroded from the reach in Marble and upper Grand Canyons.

As discharges less than 9,000 ft3/s became less common, the discharge of the river became progressively more conducive to the conveyance of sand through or the erosion of sand from Marble and upper Grand Canyons. [2]

Links and Information

Projects

Sediment Gages

Sand Mass Balance Reaches in Grand Canyon

Presentations and Papers

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2003

1999

1988

Other Stuff

Flash Flood videos
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