Numerical modelling of climate change impacts on Saint-LawrenceRiver tributaries
Années 2010-2099 ; Canada ; Changement climatique ; Changement global ; Cours d'eau ; Dynamique fluviale ; Effet de serre ; Impact ; Modèle ; Niveau de base ; Québec ; Saint-Laurent ; Transport sédimentaire
Base level ; Canada ; Climatic change ; Fluvial dynamics ; Global change ; Greenhouse effect ; Impact ; Model ; Quebec ; Saint-Laurent ; Sediment transport ; Stream
The impacts of climate-induced changes in discharge and base level in 3 tributaries of the Saint-LawrenceRiver, Québec, are modelled for the period 2010–2099 using a one-dimensional morphodynamic model. Changes in channel stability and bed-material
delivery to the Saint-LawrenceRiver over this period are simulated for all combinations of 7 tributary hydrological regimes (present-day and those predicted using 3 global climate models and 2 greenhouse gas emission scenarios) and 3 scenarios of how
the base level provided by the Saint-LawrenceRiver will alter (no change, gradual fall, step fall). The different results highlight the importance of investigating several rivers using several climate models in order to determine trends in climate change
The St. Lawrence Centre and the SLV 2000 program : for to protect the St. Lawrenceriver
Le centre Saint-Laurent et le programme SLV 2000 : pour la sauvegarde du fleuve Saint-Laurent
Atlantic Ocean ; Canada ; Eastern Canada ; North America ; North Atlantic ; Northwest Atlantic ; Quebec ; SaintLawrence Estuary ; SaintLawrenceRiver ; coastal environment ; data bases ; environment protection ; geographic information systems
Amérique du Nord ; Base donnée ; Canada ; Canada Est ; Estuaire Saint Laurent ; Milieu littoral ; Océan Atlantique ; Océan Atlantique Nord ; Océan Atlantique Nord Ouest ; Programme ; Protection environnement ; Québec ; Rivière Saint Laurent
Le centre Saint-Laurent (CSL) est un centre de recherche et de diffusion de connaissances scientifiques créé en 1988 dans le cadre du plan d'action Saint-Laurent, un programme fédéral-provincial voué à la protection, à la restauration et à la mise
en valeur du fleuve Saint-Laurent. L'un des volets de ce plan d'action mise sur l'implication des communautés riveraines dans l'atteinte de ces objectifs. Le programme Zones d'intervention prioritaire (ZIP) a permis de dresser des bilans
environnementaux à l'échelle locale destinés à orienter les interventions futures des communautés riveraines quant à la protection et à la mise en valeur du fleuve Saint-Laurent. Ces communautés s'impliqueront par l'établissement de Plans d'action et de
réhabilitation écologique (Pare). Un aperçu de cette démarche de partenariat et de concertation locale est présenté ici. Par ses différents projets de recherche, le CSL a accumulé un corpus de données environnementales sur le fleuve Saint-Laurent. Un projet de
[b1] Centre Saint-Laurent, Environnement Canada, 105 rue McGill, 7e étage, Montréal (Québec), H2Y 2E7, Canada
Les AA. analysent les principales particularités du régime hydrologique et de la morphogenèse de la zone d’embouchure, du type estuaire, du fleuve Saint-Laurent. Une attention toute particulière est apportée aux processus de mélange des eaux, de
C 14 chronology for ice retreat and inception of Champlain Sea in the St. Lawrence Lowlands, Canada
-based extrapolation of bottommost ages on terrestrial plant macrofossils in sediments of this lake, and of another lakenearby support an estimate 11,100 C 14 yr B.P. for marine invasion in the Central St. LawrenceRiver Lowlands. Results indicate a 400
The long-term effectiveness of fish habitat restoration practices : Lawrence Creek, Wisconsin
This article examines the long-term effects of bank-cover deflectors on the physical fish habitat and on the channel morphology. The study was conducted on Lawrence Creek, where trout habitat had been affected negatively by intense cattle grazing
efficient and the channel is unstable. The success of the rehabilitation is therefore conditioned by the physical context of the river.
The drainage of the Lake Ha!Ha! reservoir and downstream geomorphic impacts along Ha!Ha! River, Saguenay area, Quebec, Canada
On July 18-21, 1996, a severe rainstorm caused widespread flooding along the north shore of the St. LawrenceRiver. At the Lake Ha!Ha! reservoir, inadequate available capacity to spill during the storm at the outlet dam resulted in the overtopping
and erosion of a nearby earthfill saddle dyke. A new outlet formed at the site of the dyke, drained the reservoir over a period of many hours, and increased flooding. The flooding caused extensive geomorphic impacts along the river.
Farm layouts and building styles of the metis agriculturalists in Central Saskatchewan prior to 1870 manifested technology imported from francophone communities along the St. LawrenceRiver. The AA. contend that the metis house and farmstead
A case study of how a private company initiated a public infrastructure project along a stretch of the northern bank of the St. LawrenceRiver around Point St. Charles. The dealings between the anglophone and francophone city council members
L'Atlas environnemental du Saint-Laurent est destiné à présenter un bilan de l'état de l'environnement du fleuve Saint-Laurent. Ses objectifs d'éducation, de sensibilisation et de vulgarisation visent à faire connaître à un public non spécialisé les
Aerial photography ; Bank erosion ; Channel geometry ; Flood ; Floodplain ; Kansas ; LiDAR ; Measurement ; River bed ; Stream ; Stream flow ; United States of America
[b1] Dep. of Geography, Univ. of Kansas, Lawrence, Etats-Unis
[b2] U.S. Geological Survey, Kansas, Lawrence, Etats-Unis
Spectrally based remote sensing of river bathymetry
This paper evaluates the potential for remote mapping of river bathymetry by (1) examining the theoretical basis of a simple, ratio-based technique for retrieving depth information from passive optical image data; (2) performing radiative transfer
) producing bathymetric maps for a pair of gravel-bed rivers from hyperspectral image data. The application of a simple algorithm, called optimal band ratio analysis (OBRA) to hyperspectral image data resulted in spatially coherent, hydraulically reasonable
bathymetric maps, though negative depth estimates occurred along channel margins where pixels were mixed. This study indicates that passive optical remote sensing could become a viable tool for measuring river bathymetry.
The AA. examine the natural range of variability in the Conejos River Valley, southern Colorado, through documentation of terrace morphostratigraphic and sedimentological characteristics as well as through investigation of sediment contributions
AND A MATHEMATICAL MODEL OF THE ISERE BETWEEN ITS CONFLUENCE WITH THE RIVER ARC AND THE SAINT GERVAIS SILL 80 KM DOWNSTREAM WERE USED FOR THE INVESTIGATION. IN ADDITION TO PROTECT THE RIVER DYKES, AND TO PROVIDE A MILD-RIVER CHANNEL, ACTUAL PLANS INCLUDE SUB-RIVER
BRIEF HISTORICAL REVIEW OF CANALISATION, BEND-CUTTING AND BANK PROTECTION WORK IN THE RIVER ISERE ABOVE GRENOBLE AND AT ITS INTERSECTION WITH A CROSS-VALLEY AT VEREPPE AFTER THE CITY. A 1:100 SCALE MODEL OF THE 8 KM STRETCH OF RIVER THROUGH GRENOBLE
SILLS FOR STABILISING THE RIVER AND RELATED AQUIFERS. IF POSSIBLE, FLOODING AREAS WILL BE MAINTAINED IN THE VIEW TO ATTENUATE MAJOR FLOODS BEFORE THEY REACH GRENOBLE.
cultivated area in south-western Finland. The INCA-Sed model was able to capture both the correct magnitude and seasonal behaviour of suspended sediment concentrations in the rivers, as well as the correct magnitude of the sediment load derived from different
LAWRENCE, D.S.L.[b4]
[b1] Finnish Environment Inst., Research Programme for Integrated River Basin Management, Helsinki, Finlande
Use geopedological methods for the evaluation of sedimentation rates on river floodplains, southern Québec, Canada
The study area is located in the Saint-François River basin which is affected by periodic floods. The aims of this study are to (i) inventory and analyze the floodplain soils using morphological and physical and chemical parameters in order
Canada ; Canal ; Estuary ; Freezing ; Harbour traffic ; Historical geography ; Hydraulic works ; Lake ; Longitudinal section ; Maritime traffic ; River transport ; Saint-Laurent ; Stream ; Transport network ; Waterway
Aménagement hydraulique ; Canada ; Canal ; Cours d'eau ; Estuaire ; Gel ; Géographie historique ; Lac ; Profil longitudinal ; Saint-Laurent ; Trafic maritime ; Trafic portuaire ; Transport fluvial ; Voie de communication ; Voie navigable
L'importance de la voie d'eau maritime du Saint-Laurent est due à certaines conditions physiques naturelles excellentes, aux aménagements qui ont permis de remédier à d'autres conditions naturelles délicates (rapides, gel) enfin à l'intérêt
L'évolution du lit du Saint-Laurent dans le secteur de Contrecoeur (Québec) depuis un siècle
Bathymetric chart ; Canada ; Fluvial dynamics ; Fluvial processes ; Geographical information system ; Quebec ; River bed ; Saint-Laurent
Canada ; Carte bathymétrique ; Dynamique fluviale ; Fluviatile ; Lit fluvial ; Québec ; Saint-Laurent ; Système d'information géographique
Comparaison des levés hydrographiques de 1898, 1945 et 1988 afin d'établir la cartographie des changements survenus dans le lit du Saint-Laurent dans le secteur de Contrecoeur, entre Montréal et Sorel. L'instabilité du lit s'est accélérée depuis
, located on the north shore of the St. LawrenceRiver in southern Quebec. The second study site is the Covey Hill peatland, located 100 km south of Montreal along the Canada-USA border.
Measuring bedload in gravel-bed mountain rivers : averaging methods and sampling strategies
A dataset of more than 1,000 individual bedload samples coupled with hydraulic flow variables (water depth and velocity) was collected on 2 high mountain rivers the torrent de Saint Pierre, a proglacial gravel-bed river in the French Alps, in July
2002 and the Urumqi River, in the Chinese Tianshan mountains during summer 2005 and 2006. Analysis of the dataset leads to question the usual section averaged sampling procedure of bedload using Helley-Smith type bedload sampler. It is shown