Готові списки джерел за темами / Lake Champlain Basin

Добірка наукової літератури з теми "Lake Champlain Basin"

Автор: Grafiati
Опубліковано: 10 грудня 2022
Оновлено: 28 січня 2023

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Статті в журналах з теми "Lake Champlain Basin"

1

Parent, Michel, and Serge Occhietti. "Late Wisconsinan Deglaciation and Champlain Sea Invasion in the St. Lawrence Valley, Québec." Géographie physique et Quaternaire 42, no. 3 (December 18, 2007): 215–46. http://dx.doi.org/10.7202/032734ar.

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ABSTRACT Champlain Sea history is directly linked to Late Wisconsinan deglacial episodes. Champlain Sea Phase I (Charlesbourg Phase) began in the Québec area at about 12.4 ka. It represented a western extension of the Goldthwait Sea between remnant Appalachian ice masses and the Laurentide Ice Sheet. Further south, at about the same time, in the Appalachian uplands and piedmont, high-level glacial lakes were impounded by the ice-front during glacial retreat toward NNW: lakes Vermont, Memphrémagog and Mégantic. Lowlands of the Upper St. Lawrence and Lake Champlain valleys were progressively deglaciated and inundated by Lake Iroquois and Lake Vermont. At about 12.1 ka, these two lakes coalesced and formed a single water-body, here referred to as Lake Candona. After the Ulverton-Tingwick Moraine was constructed, this lake extended northeastward onto the Appalachian piedmont where varved sediments containing Candona subtriangulata underlie marine clays. Current data and interpretations bring into question the former concept of the Highland Front Moraine System. The invasion of the main basin, or Champlain Sea Phase II, began around 12 ka. Replacement of Lake Candona by the sea resulted in a fall of about 60 m in water levels. Champlain Sea Phase III began at the end of the Saint-Narcisse episode, at about 10.8 ka. At this time marine waters were able to enter valleys of the Laurentian Highlands where brackish or fresh paramarine basins developed.
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2

Meals, Donald W., and Lenore F. Budd. "LAKE CHAMPLAIN BASIN NONPOINT SOURCE PHOSPHORUS ASSESSMENT." Journal of the American Water Resources Association 34, no. 2 (April 1998): 251–65. http://dx.doi.org/10.1111/j.1752-1688.1998.tb04132.x.

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3

Howe, Eric A., J. Ellen Marsden, and Wayne Bouffard. "Movement of Sea Lamprey in the Lake Champlain Basin." Journal of Great Lakes Research 32, no. 4 (2006): 776. http://dx.doi.org/10.3394/0380-1330(2006)32[776:moslit]2.0.co;2.

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4

Stickney, Michaela, Colleen Hickey, and Roland Hoerr. "Lake Champlain Basin Program: Working together today for tomorrow." Lakes and Reservoirs: Research and Management 6, no. 3 (September 27, 2001): 217–23. http://dx.doi.org/10.1046/j.1440-1770.2001.00150.x.

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5

Young, Bradley, BJ Allaire, and Stephen Smith. "Achieving Sea Lamprey Control in Lake Champlain." Fishes 6, no. 1 (January 26, 2021): 2. http://dx.doi.org/10.3390/fishes6010002.

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The control of parasitic sea lamprey in Lake Champlain has been a necessary component of its fishery restoration and recovery goals for 30 years. While adopting the approach of the larger and established sea lamprey control program of the Laurentian Great Lakes, local differences emerged that shifted management focus and effort as the program evolved. Increased investment in lamprey assessment and monitoring revealed under-estimations of population density and distribution in the basin, where insufficient control efforts went unnoticed. As control efforts improved in response to a better understanding of the population, the effects of lamprey on the fishery lessened. A long-term evaluation of fishery responses when lamprey control was started, interrupted, delayed, and enhanced provided evidence of a recurring relationship between the level of control effort applied and the measured suppression of the parasitic sea lamprey population. Changes in levels of control efforts over time showed repeatedly that measurable suppression of the parasitic population required effective control of 80% of the known larval population. Understanding the importance of assessment and monitoring and the relationship between control effort and population suppression has led to recognition that a comprehensive, not incremental, approach is needed to achieve effective control of sea lamprey in Lake Champlain.
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6

Rayburn, John A., Thomas M. Cronin, David A. Franzi, Peter L. K. Knuepfer, and Debra A. Willard. "Timing and duration of North American glacial lake discharges and the Younger Dryas climate reversal." Quaternary Research 75, no. 3 (May 2011): 541–51. http://dx.doi.org/10.1016/j.yqres.2011.02.004.

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AbstractRadiocarbon-dated sediment cores from the Champlain Valley (northeastern USA) contain stratigraphic and micropaleontologic evidence for multiple, high-magnitude, freshwater discharges from North American proglacial lakes to the North Atlantic. Of particular interest are two large, closely spaced outflows that entered the North Atlantic Ocean via the St. Lawrence estuary about 13,200–12,900 cal yr BP, near the beginning of the Younger Dryas cold event. We estimate from varve chronology, sedimentation rates and proglacial lake volumes that the duration of the first outflow was less than 1 yr and its discharge was approximately 0.1 Sv (1 Sverdrup = 106 m3 s−1). The second outflow lasted about a century with a sustained discharge sufficient to keep the Champlain Sea relatively fresh for its duration. According to climate models, both outflows may have had sufficient discharge, duration and timing to affect meridional ocean circulation and climate. In this report we compare the proglacial lake discharge record in the Champlain and St. Lawrence valleys to paleoclimate records from Greenland Ice cores and Cariaco Basin and discuss the two-step nature of the inception of the Younger Dryas.
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7

Meals, D. W. "Water quality response to riparian restoration in an agricultural watershed in Vermont, USA." Water Science and Technology 43, no. 5 (March 1, 2001): 175–82. http://dx.doi.org/10.2166/wst.2001.0280.

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Achievement of management goals for Lake Champlain (Vermont/New York, USA and Quebec, Canada) will require reduction of agricultural phosphorus loads, the dominant nonpoint source in the Basin. Cost-effective phosphorus reduction strategies need reliable treatment techniques beyond basic cropland and waste management practices. The Lake Champlain Basin Agricultural Watersheds National Monitoring Program (NMP) Project evaluates the effectiveness of livestock exclusion, streambank protection, and riparian restoration practices in reducing concentrations and loads of nutrients, sediment, and bacteria in surface waters. Treatment and control watersheds in northwestern Vermont have been monitored since 1994 according to a paired-watershed design. Monitoring consists of continuous stream discharge recording, flow-proportional sampling for total P, total Kjeldahl N, and total suspended solids, grab sampling for indicator bacterial, and land use/agricultural monitoring. Strong statistical calibration between the control and treatment watersheds has been achieved. Installation of riparian fencing, protected stream crossings, and streambank bioengineering was completed in 1997. Early post-treatment data suggest significant reduction in P concentrations and loads and in bacteria counts in the treated watershed. Monitoring is scheduled to continue through 2000.
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8

Guilbert, Justin, Brian Beckage, Jonathan M. Winter, Radley M. Horton, Timothy Perkins, and Arne Bomblies. "Impacts of Projected Climate Change over the Lake Champlain Basin in Vermont." Journal of Applied Meteorology and Climatology 53, no. 8 (August 2014): 1861–75. http://dx.doi.org/10.1175/jamc-d-13-0338.1.

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AbstractThe Lake Champlain basin is a critical ecological and socioeconomic resource of the northeastern United States and southern Quebec, Canada. While general circulation models (GCMs) provide an overview of climate change in the region, they lack the spatial and temporal resolution necessary to fully anticipate the effects of rising global temperatures associated with increasing greenhouse gas concentrations. Observed trends in precipitation and temperature were assessed across the Lake Champlain basin to bridge the gap between global climate change and local impacts. Future shifts in precipitation and temperature were evaluated as well as derived indices, including maple syrup production, days above 32.2°C (90°F), and snowfall, relevant to managing the natural and human environments in the region. Four statistically downscaled, bias-corrected GCM simulations were evaluated from the Coupled Model Intercomparison Project phase 5 (CMIP5) forced by two representative concentration pathways (RCPs) to sample the uncertainty in future climate simulations. Precipitation is projected to increase by between 9.1 and 12.8 mm yr−1 decade−1 during the twenty-first century while daily temperatures are projected to increase between 0.43° and 0.49°C decade−1. Annual snowfall at six major ski resorts in the region is projected to decrease between 46.9% and 52.4% by the late twenty-first century. In the month of July, the number of days above 32.2°C in Burlington, Vermont, is projected to increase by over 10 days during the twenty-first century.
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9

Normandeau, Alexandre, Patrick Lajeunesse, Annie-Pier Trottier, Antoine G. Poiré, and Reinhard Pienitz. "Sedimentation in isolated glaciomarine embayments during glacio-isostatically induced relative sea level fall (northern Champlain Sea basin)." Canadian Journal of Earth Sciences 54, no. 10 (October 2017): 1049–62. http://dx.doi.org/10.1139/cjes-2017-0002.

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The nature of glaciomarine sediments deposited during ice margin retreat can vary according to physiographic setting and relative sea level fluctuations. To understand the effects of these two parameters on sedimentation, we analyzed the sediment records of four lakes located within former isolated glaciomarine embayments of the northern Champlain Sea basin. These lakes were initially inundated by marine water of the Champlain Sea, following deglaciation, and have subsequently experienced basin isolation owing to glacio-isostatic rebound. Three of these lakes reveal a common litho- and acoustic stratigraphic succession, characterized by an IRD-free glaciomarine to marine facies consisting of homogeneous to faintly laminated clayey silts grading into well-laminated silts with rapidly deposited layers. These two units recorded the transitional environment from glaciomarine sedimentation below multiyear shorefast ice to increased terrestrial runoff and rapid glacio-isostatic rebound once the ice margin retreated inland. During ice margin retreat, relative sea level fell concomitantly resulting in the deposition of coarser sediments in marine embayments. Upon the complete retreat of the ice margin, the supply of terrestrial sediments diminished and lake isolation, driven by relative sea level fall, led to higher biogenic content and increased bioturbation. This study provides a framework for sedimentation in isolated glaciomarine embayments which differs from deep-water sedimentation owing to the presence of shorefast sea-ice and their protected location from major ice-stream outlets.
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10

L. T. Ghebremichael, T. L. Veith, and M. C. Watzin. "Determination of Critical Source Areas for Phosphorus Loss: Lake Champlain Basin, Vermont." Transactions of the ASABE 53, no. 5 (2010): 1595–604. http://dx.doi.org/10.13031/2013.34898.

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Дисертації з теми "Lake Champlain Basin"

1

Sparacino, Holden Smith. "Characterizing The Management Practices And Decision-Making Processes Of Winter Maintenance Companies In The Lake Champlain Basin." ScholarWorks @ UVM, 2019. https://scholarworks.uvm.edu/graddis/1040.

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Road salt and other products used for winter maintenance in the Northeastern United States and Canada can impact ecosystems, pose risks to aquatic life, and create human health concerns. In response to these impacts and rising cost of materials, many municipalities have adopted preventative best management practices (BMPs) that reduce the amount of application materials used, save money, and/or provide a similar level of service and safety. Private companies that maintain parking lots and private roadways also contribute to the increasing chloride concentrations seen in the northeastern United States and Canada, but the practices of these companies have largely not been previously assessed. This mixed-methods study focused on private contractors in the Lake Champlain Basin in Vermont and New York who maintain parking lots, driveways, and roadways. A census and interviews were used to characterize practices used by private contractors and to identify key factors that drive their decision-making processes. A literature review was conducted to understand winter maintenance practices including recommended BMPs, potential environmental impacts and ways that contractors may be incentivized to adopt reduced-salt practices. The literature review informed the development of a census of winter maintenance companies in the Lake Champlain Basin. Contractors most often reported maintaining parking lots and roadways, and most commonly applying sand and salt. Physical snow removal techniques and adjustable material application rates were commonly adopted BMPs. Other BMPs including proactive applications, calibrating equipment, and using brine were infrequently adopted. In addition, the study examined the motivations and barriers contractors have to adopt recommended BMPs through qualitative and quantitative methods. Commonly reported motivations included perceived liability or safety concerns, customer request or expectations, and cost. Commonly reported barriers included cost, time, and customer requests or expectations. Across census and interview results, companies that focus on commercial lots and individuals who learn management practices through in-person trainings or online resources were found to use more recommended BMPs than other groups. Results of the study informed the development of outreach recommendations to increase private contractors’ adoption of BMPs and to lessen road salt use. These included: developing online resources, annual conferences, and reoccurring in-person trainings.
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Книги з теми "Lake Champlain Basin"

1

Daniel Patrick Moynihan Lake Champlain Basin Program Act of 2002: [report] (to accompany S. 2928) (including cost estimate of the Congressional Budget Office). [Washington, D.C: U.S. G.P.O., 2002.

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2

The Great Lakes and Lake Champlain Program Act of 2002: Report (to accompany H.R. 1070) (including cost estimate of the Congressional Budget Office). [Washington, D.C: U.S. G.P.O., 2002.

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3

US GOVERNMENT. An Act to Amend the Federal Water Pollution Control Act to Authorize the Administrator of the Environmental Protection Agency to Carry Out Projects and Conduct Research for Remediation of Sediment Contamination in Areas of Concern in the Great Lakes, and for Other Purposes. [Washington, D.C: U.S. G.P.O., 2002.

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4

Medalie, Laura. Concentrations and loads of nutrients and suspended sediments in Englesby Brook and Little Otter Creek, Lake Champlain Basin, Vermont, 2000-2005. Reston, Va: U.S. Geological Survey, 2007.

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5

Cartographic, Inc Northern. The Lake Champlain Basin atlas. Northern Cartographic, 1999.

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6

Demarest, Amy B. This Lake Alive!: An Interdisciplinary Handbook for Teaching and Learning About the Lake Champlain Basin (Shelburne Farms Books). Shelburne Farms, 1999.

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Частини книг з теми "Lake Champlain Basin"

1

Shanley, James B., and Jon C. Denner. "The hydrology of the Lake Champlain basin." In Water Science and Application, 41–66. Washington, D. C.: American Geophysical Union, 1999. http://dx.doi.org/10.1029/ws001p0041.

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2

Hudspeth, Thomas R., and Patricia Straughan. "Lake Champlain basin education and outreach programs." In Water Science and Application, 381–88. Washington, D. C.: American Geophysical Union, 1999. http://dx.doi.org/10.1029/ws001p0381.

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3

Poirot, Rich, Paul Wishinski, Bret Schichtel, and Phil Girton. "Air trajectory pollution climatology for the Lake Champlain basin." In Water Science and Application, 25–39. Washington, D. C.: American Geophysical Union, 1999. http://dx.doi.org/10.1029/ws001p0025.

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4

Shanley, James B., Andrea F. Donlon, Timothy Scherbatskoy, and Gerald J. Keeler. "Mercury cycling and transport in the Lake Champlain basin." In Water Science and Application, 277–99. Washington, D. C.: American Geophysical Union, 1999. http://dx.doi.org/10.1029/ws001p0277.

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5

Wang, Deane, Lisa J. Windhausen, and David C. Braun. "A Landscape Scale Evaluation of Phosphorus Retention in Wetlands of the Laplatte River Basin, Vermont, USA." In Lake Champlain: Partnerships and Research in the New Millennium, 221–39. Boston, MA: Springer US, 2004. http://dx.doi.org/10.1007/978-1-4757-4080-6_12.

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6

Gao, Ning, Nathan G. Armatas, Benjamin Puchalski, Philip K. Hopke, and Richard L. Poirot. "A Preliminary Investigation into the Possible Emission Sources for Atmospheric Mercury Found in the Lake Champlain Basin." In Lake Champlain: Partnerships and Research in the New Millennium, 21–37. Boston, MA: Springer US, 2004. http://dx.doi.org/10.1007/978-1-4757-4080-6_3.

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7

Deslandes, Julie, Aubert Michaud, and Ferdinand Bonn. "Use of GIS and Remote Sensing to Develop Indicators of Phosphorus Non-Point Source Pollution in the Pike River Basin." In Lake Champlain: Partnerships and Research in the New Millennium, 271–90. Boston, MA: Springer US, 2004. http://dx.doi.org/10.1007/978-1-4757-4080-6_15.

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8

Seltzer, Nicole, and Deane Wang. "Importance of Hydric Soils and Near-Lake Areas as Phosphorus Source Areas in the Lake Champlain Basin: Evidence from a Landscape-Level Model." In Lake Champlain: Partnerships and Research in the New Millennium, 143–58. Boston, MA: Springer US, 2004. http://dx.doi.org/10.1007/978-1-4757-4080-6_9.

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9

Michaud, Aubert R., Richard Lauzier, and Marc R. Laverdière. "Temporal and Spatial Variability in Non-Point Source Phosphorus in Relation to Agricultural Production and Terrestrial Indicators: The Beaver Brook Case Study, Pike River Basin, Québec." In Lake Champlain: Partnerships and Research in the New Millennium, 97–121. Boston, MA: Springer US, 2004. http://dx.doi.org/10.1007/978-1-4757-4080-6_7.

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10

Scherbatskoy, Timothy D., Richard L. Poirot, Barbara J. B. Stunder, and Richard S. Artz. "Current knowledge of air pollution and air resource issues in the Lake Champlain basin." In Water Science and Application, 1–23. Washington, D. C.: American Geophysical Union, 1999. http://dx.doi.org/10.1029/ws001p0001.

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Тези доповідей конференцій з теми "Lake Champlain Basin"

1

Underwood, Kristen L., Caroline Alves, Donald S. Ross, Mandar M. Dewoolkar, and Donna M. Rizzo. "INFLUENCE OF GEOMORPHIC SETTING ON DISTRIBUTION OF NUTRIENT STOCKS IN LAKE CHAMPLAIN BASIN FLOODPLAINS." In 51st Annual Northeastern GSA Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016ne-272354.

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2

Salazar, Emma L., Timothy Schroeder, and William H. Amidon. "STABLE ISOTOPE ANALYSES OF POST-RIFTING CALCITE VEINS IN THE LAKE CHAMPLAIN BASIN: A RECORD OF TECTONIC REJUVENATION?" In 54th Annual GSA Northeastern Section Meeting - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019ne-328277.

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Звіти організацій з теми "Lake Champlain Basin"

1

Rodrigues, C. G., and S. H. Richard. An ecostratigraphic study of late pleistocene sediments of western Champlain Sea Basin, Ontario and Quebec. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1986. http://dx.doi.org/10.4095/120609.

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2

Rodriques, C. G. Late Pleistocene Invertebrate Macrofossils, Microfossils and Depositional Environments of the western Basin of the Champlain Sea. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1987. http://dx.doi.org/10.4095/122378.

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3

Rodrigues, C. G., and S. H. Richard. Temporal distribution and significance of late pleistocene fossils in the western Champlain Sea Basin, Ontario and Quebec. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1985. http://dx.doi.org/10.4095/120268.

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