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Permafrost Hydrology systematically elucidates the roles of seasonally and perennially frozen ground on the distribution, storage and flow of water. Cold regions of the World are subject to mounting development which significantly affects the physical environment. Climate change, natural or human-induced, reinforces the impacts. Knowledge of surface and ground water processes operating in permafrost terrain is fundamental to planning, management and conservation. This book is an indispensable reference for libraries and researchers, an information source for practitioners, and a valuable text for training the next generations of cold region scientists and engineers.

Hydrology. --- Permafrost. --- Hydrology --- Permafrost --- Geography --- Earth & Environmental Sciences --- Physical Geography --- Eternally frozen ground --- Ever frozen ground --- Perennially frozen ground --- Pergelisol --- Permanently frozen ground --- Perpetually frozen ground --- Tjale --- Earth sciences. --- Hydrogeology. --- Physical geography. --- Climate change. --- Soil science. --- Soil conservation. --- Earth Sciences. --- Climate Change. --- Physical Geography. --- Soil Science & Conservation. --- Frozen ground --- Aquatic sciences --- Earth sciences --- Hydrography --- Water --- Hydraulic engineering. --- Climatic changes. --- Conservation of soil --- Erosion control, Soil --- Soil erosion --- Soil erosion control --- Soils --- Agricultural conservation --- Soil management --- Changes, Climatic --- Changes in climate --- Climate change --- Climate change science --- Climate changes --- Climate variations --- Climatic change --- Climatic changes --- Climatic fluctuations --- Climatic variations --- Global climate changes --- Global climatic changes --- Climatology --- Climate change mitigation --- Teleconnections (Climatology) --- Engineering, Hydraulic --- Engineering --- Fluid mechanics --- Hydraulics --- Shore protection --- Control --- Prevention --- Conservation --- Environmental aspects --- Pedology (Soil science) --- Agriculture --- Geohydrology --- Geology --- Groundwater --- Global environmental change

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ThegeographyofCanadamakesitoneofthebestlocationsintheworld for cold regionatmosphericand hydrologic studies:its high latitudeand high mountains,proximity to oceans in theArcticand cold temperate zones,a broadassemblage of landscapeand vegetation,and numerous lakesand rivers.Foryears,Canadians have conducted research on cold regions,either individually or in small groups, thusaccumulating rich experienceandample expertisein the farNorth.Creation of theGlobal EnergyandWaterCycleExperiment(GEWEX),undertheauspicesofthe WorldClimateResearchProgram,providedanexternalimpetusforlar- scale collaborative research. Canada responded to this initiativeby creatingtheMackenzieGEWEXStudyorMAGSthatfocusedonthecold region.ItwasrecognizedattheearlystageofMAGSthattheatmosphere andthehydrospherearestronglylinked.Aconcertedeffortofatmospheric andhydrologicscientistsisbeneficial,ifnotessential,toasuccessfullarge research program.In thisregards,investigation conducted bya groupof scientistsandengineersofMAGSwasentirelyrelevantandtimely.This study,carriedoutbetween1994and2005,hadtheresearchobjectivesof (1)understandingandmodelingthehigh-latitudeenergyandwatercycles that playroles in the climate system,and (2)improving ourability to assess the changestoCanada ?swaterresourcesthatarisefrom climate variabilityandanthropogenicclimatechange. So vast a world region that isunderthe influence of intense and persistent coldness cannot be covered by a contingent of Canadian researchersoveradecadaltimehorizon.TheMackenzieRiverBasinand its vicinity in northwestern Canada, occupying an area of about two millionsquarekilometers,wasadoptedasthepreferredresearchlocation. It offersa wideassemblage of environments, including mountainsand plains,tundraandforests,lakesandwetlands,andwinterslandscapesof snow, ice and frost. Its climatic continentality is accompanied by pronounced external influences,notably from the Pacific Ocean. The Mackenzie area presents a diversity of atmospheric and hydrologic conditionswiththeirattendantresearchproblemstochallengetheMAGS investigators. With increasing pressureofdevelopment, the previously neglected northernareas in many circumpolar nations havecome to the fore.The coldregionwithitspermafrost,snowandicethataresensitivetoclimate v warming,andwithitsecosystemthatisvulnerabletodisturbances,must be developed in a considered fashion toenable environmental sustainability.Information needstobegatheredand sound knowledge should be available for proper planning and operationalpurposes. Furthermore, the cold region isacknowledged to be highlysensitive to variationsandchangesintheclimate.Theeffectsofitsatmosphericand hydrologicfeedbackextendwellbeyondtheconfinesofthehighlatitudes to influence the globalmovements of waterand energy.Therearelarge uncertaintiesregarding howthe cold region respondsto the impetus of changesimposedbynatureandhuman.Progressincoldclimateresearch wouldcontributetoimprovedunderstandingofhowthesystembehaves, henceenablingbetterpreparationforandappropriateadaptationtothese changes. MAGSattempted toincreaseour knowledge of the North. All its projectsplacedanexplicitorimplicitemphasisonimprovingthecurrent understanding of the cold regionatmosphericand hydrologic processes.

Nature protection --- Geodesy. Cartography --- Meteorology. Climatology --- Hygiene. Public health. Protection --- Radiotherapy. Isotope therapy --- Air pollution. Air purification --- Physical geography --- fotogrammetrie --- stralingshygiëne --- farmacologie --- luchtverontreiniging --- klimatologie --- meteorologie --- fysische geografie --- klimaatverandering

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Meteorology. Climatology --- Geology. Earth sciences --- Pedology --- Physical geography --- bodemkunde --- hydrologie --- bodembescherming --- fysische geografie --- klimaatverandering

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ThegeographyofCanadamakesitoneofthebestlocationsintheworld for cold regionatmosphericand hydrologic studies:its high latitudeand high mountains,proximity to oceans in theArcticand cold temperate zones,a broadassemblage of landscapeand vegetation,and numerous lakesand rivers.Foryears,Canadians have conducted research on cold regions,either individually or in small groups, thusaccumulating rich experienceandample expertisein the farNorth.Creation of theGlobal EnergyandWaterCycleExperiment(GEWEX),undertheauspicesofthe WorldClimateResearchProgram,providedanexternalimpetusforlar- scale collaborative research. Canada responded to this initiativeby creatingtheMackenzieGEWEXStudyorMAGSthatfocusedonthecold region.ItwasrecognizedattheearlystageofMAGSthattheatmosphere andthehydrospherearestronglylinked.Aconcertedeffortofatmospheric andhydrologicscientistsisbeneficial,ifnotessential,toasuccessfullarge research program.In thisregards,investigation conducted bya groupof scientistsandengineersofMAGSwasentirelyrelevantandtimely.This study,carriedoutbetween1994and2005,hadtheresearchobjectivesof (1)understandingandmodelingthehigh-latitudeenergyandwatercycles that playroles in the climate system,and (2)improving ourability to assess the changestoCanada ?swaterresourcesthatarisefrom climate variabilityandanthropogenicclimatechange. So vast a world region that isunderthe influence of intense and persistent coldness cannot be covered by a contingent of Canadian researchersoveradecadaltimehorizon.TheMackenzieRiverBasinand its vicinity in northwestern Canada, occupying an area of about two millionsquarekilometers,wasadoptedasthepreferredresearchlocation. It offersa wideassemblage of environments, including mountainsand plains,tundraandforests,lakesandwetlands,andwinterslandscapesof snow, ice and frost. Its climatic continentality is accompanied by pronounced external influences,notably from the Pacific Ocean. The Mackenzie area presents a diversity of atmospheric and hydrologic conditionswiththeirattendantresearchproblemstochallengetheMAGS investigators. With increasing pressureofdevelopment, the previously neglected northernareas in many circumpolar nations havecome to the fore.The coldregionwithitspermafrost,snowandicethataresensitivetoclimate v warming,andwithitsecosystemthatisvulnerabletodisturbances,must be developed in a considered fashion toenable environmental sustainability.Information needstobegatheredand sound knowledge should be available for proper planning and operationalpurposes. Furthermore, the cold region isacknowledged to be highlysensitive to variationsandchangesintheclimate.Theeffectsofitsatmosphericand hydrologicfeedbackextendwellbeyondtheconfinesofthehighlatitudes to influence the globalmovements of waterand energy.Therearelarge uncertaintiesregarding howthe cold region respondsto the impetus of changesimposedbynatureandhuman.Progressincoldclimateresearch wouldcontributetoimprovedunderstandingofhowthesystembehaves, henceenablingbetterpreparationforandappropriateadaptationtothese changes. MAGSattempted toincreaseour knowledge of the North. All its projectsplacedanexplicitorimplicitemphasisonimprovingthecurrent understanding of the cold regionatmosphericand hydrologic processes.

Nature protection --- Geodesy. Cartography --- Meteorology. Climatology --- Hygiene. Public health. Protection --- Radiotherapy. Isotope therapy --- Air pollution. Air purification --- Physical geography --- fotogrammetrie --- stralingshygiëne --- farmacologie --- luchtverontreiniging --- klimatologie --- meteorologie --- fysische geografie --- klimaatverandering

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Zones humides --- Prevision hydrologique --- Inondations