Difference between revisions of "The HFE Page"
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*[https://www.usbr.gov/uc/progact/amp/twg/2013-11-06-twg-meeting/Attach_02b.pdf HFE Protocol Decision Process] | *[https://www.usbr.gov/uc/progact/amp/twg/2013-11-06-twg-meeting/Attach_02b.pdf HFE Protocol Decision Process] | ||
*[https://www.usbr.gov/uc/progact/amp/amwg/2013-08-08-amwg-meeting/Attach_09.pdf Planning for a Fall HFE] | *[https://www.usbr.gov/uc/progact/amp/amwg/2013-08-08-amwg-meeting/Attach_09.pdf Planning for a Fall HFE] | ||
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2013-02-20-amwg-meeting/Attach_06a.pdf High Flow Experiment Update ] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2013-02-20-amwg-meeting/Attach_06b.pdf USGS Information and Results from HFE] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/twg/2013-01-24-twg-meeting/Attach_06a.pdf Lessons Learned from the First HFE Protocol] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/twg/2013-01-24-twg-meeting/Attach_06b.pdf Background on HFE Releases and Assessment of Success] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/twg/2013-01-24-twg-meeting/14_Schmidt.pdf Background on High Flow Experimental Releases: Implementation Strategy and Assessment of Success] |
'''2012''' | '''2012''' | ||
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/twg/2012-10-24-twg-meeting/Attach_05a.pdf General Science Plan for Monitoring and Research of a High-Flow Experimental Protocol at Glen Canyon Dam White Paper Dated Dec. 22, 2011, and PPT] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/twg/2012-10-24-twg-meeting/Attach_05b.pdf Update on High Flow Experiment PPT] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2012-08-29-amwg-meeting/Attach_01a.pdf News Release Dated May 23, 2012, Subj: Salazar Announces Improvements to Glen Canyon Dam Operations to Restore High Flows and Native Fish in Grand Canyon] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2012-08-29-amwg-meeting/Attach_01b.pdf Creation of DOI Leadership Team to Implement Actions Outlined in the Two Environmental Assessments] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2012-08-29-amwg-meeting/Attach_04b.pdf Implementation of the HFE Protocol with Emphasis on Fall 2012] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2012-08-29-amwg-meeting/Attach_04c.pdf High Flow Experiment Modeling Process PPT] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2012-02-22-amwg-meeting/Attach_11a.pdf Two Environmental Assessments Updates] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2012-02-22-amwg-meeting/Attach_11b.pdf High-Flow Protocol Environmental Assessment PPT] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/twg/2012-02-02-twg-meeting/Attach_02.pdf Final Biological Opinion on the Operation of Glen Canyon Dam Including High Flow Experiments and Non-Native Fish Control Memo] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/twg/2012-02-02-twg-meeting/Attach_05c.pdf Executive Summaries from the High-Flow Experiment EA and the Non-Native Fish Control EA] |
'''2011''' | '''2011''' | ||
*[http://pubs.usgs.gov/circ/1366/ Effects of Three High-Flow Experiments on the Colorado River Ecosystem Downstream from Glen Canyon Dam, Arizona] | *[http://pubs.usgs.gov/circ/1366/ Effects of Three High-Flow Experiments on the Colorado River Ecosystem Downstream from Glen Canyon Dam, Arizona] | ||
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2011-08-24-amwg-meeting/Attach_16.pdf Report on Two Environmental Assessments (EAs): Protocol for High-Flow Experimental Releases EA and Non-native Fish Control EA and PPTs] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/twg/2011-06-28-twg-meeting/Attach_07.pdf Bureau of Reclamation Updates on Non-native Fish Control Environmental Assessment, High-Flow Protocol Environmental Assessment, and the Long-term Experimental and Management Plan PPT] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2011-05-18-amwg-meeting/Attach_06.pdf Report on Two Experimental Flow EAs: High-Flow Experimental Releases EA and Non-native Fish Control EA and PPTs] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/twg/2011-03-08-twg-meeting/Attach_03.pdf Updates on USBR Environmental Documents PPT] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/twg/2011-01-20-twg-meeting/Attach_03a.pdf Briefing Memo, Subject: Summary of upcoming USGS circular on the results of three high-flow experiments released from Glen Canyon Dam, Arizona] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/twg/2011-01-20-twg-meeting/Attach_03b.pdf Circular 1366: Effects of Three High-Flow Experiments on the Colorado River Ecosystem Downstream from Glen Canyon Dam, Arizona] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/twg/2011-01-20-twg-meeting/Attach_03c.pdf USGS Fact Sheet: Three Experimental High-Flow Releases from Glen Canyon Dam, Arizona--Effects on Downstream Colorado River Ecosystem] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/twg/2011-01-20-twg-meeting/Attach_04a.pdf Bureau of Reclamation Updates PPT] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/twg/2011-01-20-twg-meeting/Attach_04b.pdf Sam's Questions: 1)Timing/Magnitude of Paria and LCR Floods?, and 2) Timing/Magnitude of Pre-Dam Colorado River Floods? PPT] |
'''2010''' | '''2010''' | ||
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2010-08-24-amwg-meeting/Attach_13a.pdf High Flow Experimental Protocol Environmental Assessment Update] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2010-08-24-amwg-meeting/Attach_15b.pdf The Effects of Three Glen Canyon Dam High-Flow Experiments (HFE) on the Grand Canyon Ecosystem (HFE Synthesis)] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2010-02-03-amwg-meeting/Attach_05a.pdf High Flow Experiment] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2010-02-03-amwg-meeting/Attach_05c.pdf 2008 High-Flow Experiment at Glen Canyon Dam Benefits Colorado River Resources in Grand Canyon National Park (USGS Fact Sheet 2010-3009)] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2010-02-03-amwg-meeting/Attach_05d.pdf 2008 High Flow Experimental Results PPT] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2010-02-03-amwg-meeting/Attach_05e.pdf Open File Report 2010-1022: Riparian Response to the March 2008 Short-Duration, High-Flow Experiment--Implications of Timing and Frequency of Flood Disturbance on Nonnative Plant Establishment Along the Colorado River Below Glen Canyon Dam (prepared by Barbara Ralston)] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2010-02-03-amwg-meeting/Attach_06a.pdf High Flow Experiment Protocol Development and Initiation of Public Scoping, Federal Register Notice Announcing Scoping, and Process/Schedule; ] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2010-02-03-amwg-meeting/Attach_26.pdf Evaluating Effects of a High-Flow Event on Rainbow Trout Movement in Glen and Marble Canyons, Arizona, by Using Acoustic Telemetry and Relative Abundance Measures] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/twg/2010-01-21-twg-meeting/Attach_02c.pdf Federal Register Notice on HFE Protocol published December 31, 2010] |
'''2009''' | '''2009''' | ||
− | *[https://www.usbr.gov/uc/ | + | *[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/ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2009-08-12-amwg-meeting/Attach_05a.pdf Grand Canyon Monitoring and Research Updates: Update on Reporting Schedule for the March 2008 High Flow Experimental Results and corresponding PPT] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2009-08-12-amwg-meeting/Attach_05h.pdf Update on Sediment Inputs and 2008 High Flow PPT] |
− | *[https://www.usbr.gov/uc/ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2009-04-29-amwg-meeting/Attach_03a.pdf Grand Canyon Monitoring and Research Center (GCMRC) Update] |
− | *[https://www.usbr.gov/uc/ | + | *[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/ | + | *[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] |
'''1997''' | '''1997''' | ||
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− | *[ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2015-02-25-amwg-meeting/Attach_HFE01.pdf GCDAMP High Flow Experiment Work Shop Introduction] |
− | *[ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2015-02-25-amwg-meeting/Attach_HFE02.pdf Hydrology and Sediment Transport] |
− | *[ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2015-02-25-amwg-meeting/Attach_HFE03.pdf Status and Trends of Sand in Glen, Marble, and Grand Canyons] |
− | *[ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2015-02-25-amwg-meeting/Attach_HFE04.pdf Operations and Hydropower] |
− | *[ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2015-02-25-amwg-meeting/Attach_HFE05.pdf HFE Impacts on Hualapai Lands] |
− | *[ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2015-02-25-amwg-meeting/Attach_HFE06.pdf Sand Resources and Monitoring at Archaeological Sites in Glen and Grand Canyon] |
− | *[ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2015-02-25-amwg-meeting/Attach_HFE07.pdf Big Flood, Small Flood, Spring Flood, Fall Flood: HFE Timing affects foodbase response in Lees Ferry] |
− | *[ | + | *[https://www.usbr.gov/uc/progact/amp/amwg/2015-02-25-amwg-meeting/Attach_HFE08.pdf Native and Nonnative Fishes in Glen, Marble and Grand Canyons] |
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Revision as of 17:46, 18 January 2019
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High-Flow Experimental (HFE) ReleasesPurpose and GoalThe purpose of HFEs is to determine if sandbar building during HFEs exceeds sandbar erosion during periods between HFEs, such that sandbar size can be increased or maintained over several years. LTEMP HFE ProtocolAs described in the LTEMP ROD, HFEs are experimental in nature and are designed to achieve a better understanding of whether, how, and when to incorporate high releases into future dam operations in a manner that maintains or improves beaches, sandbars, and associated habitat. The LTEMP HFE Protocol establishes a decision-making framework consisting of three components: (1) planning and budgeting, (2) modeling, and (3) decision and implementation. Under the LTEMP, HFE releases are restricted to limited periods of the year when the highest volumes of sediment are most likely available for building sandbars. Sediment-triggered HFEs may be made in spring (March or April) or fall (October or November; Figure 1). Fall extended-duration HFEs range from greater than 96 hr to 250 hr. Spring and fall HFEs that are not extended-duration range from less than 1 hr to 96 hr. Proactive HFEs may be implemented in spring or early summer (April, May or June), and have a duration range up to 24 hr. HFE magnitudes range from 31,500 cubic feet per second (cfs) to 45,000 cfs. The frequency of HFEs is determined by tributary sediment inputs, annual release volumes, resource conditions, and decisions of the Department. Extended-duration fall HFEs are limited to a frequency of 4 times total in the 20-year LTEMP period. HFE Sand Budget ModelThe LTEMP HFE Protocol uses predictive models to make recommendations for the magnitude and duration of potential HFEs using real-time measurements and models of sand inflow from the Paria River and forecasted hydrologic data to determine whether suitable sediment and hydrology conditions exist for a high-flow experimental release. A sand transport/budget model (Wright et al. 2010) was used to predict the mass of sand that would be transported by an HFE and to estimate if a proposed HFE would transport more or less sand than had been delivered from the Paria River to the Colorado River during the fall accounting period (July 1 to November 30). Only HFE durations that resulted in a “positive sand balance” were considered. Output of the modeling runs provides the initial recommendation for the magnitude and duration of the HFE. However, because modeling only considers a simple range of possible HFE peak magnitudes and durations, the Protocol includes a review of the model output that may modify the recommended HFE to benefit relevant resources. (2018 HFE Tech Team Report) |
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