GEOSCAN, résultats de la recherche

Menu GEOSCAN


TitreModeling tidal water levels for all Canadian coastal and offshore waters
AuteurRobin, C; MacAulay, P; Nudds, S; Godin, A; de Lange Boom, B; Bartlett, J; Maltais, L; Herron, T; Craymer, M; Véronneau, M; Fadaie, K; Hains, D
SourceNorthern Exposure: the implication of changes incold environments, 48th Canadian Meteoroligcal and Oceanographi Society Congress/Le nord vulnérable : Implication des changements dans les environnemens froids, 48e congrès de la Société canadienne de météorologie et d'océanographie; 2014 p. 159-160
LiensOnline - En ligne
Année2014
Séries alt.Secteur des sciences de la Terre, Contribution externe 20150170
ÉditeurCanadian Geodetic Survey, NRCan & Canadian Hydrographic Service, DFO
Réunion48th Canadian Meteoroligcal and Oceanographi Society Congress; Rimouski; CA; juin 1-5, 2014
Documentlivre
Lang.anglais
Mediapapier; en ligne; numérique
Formatspdf
ProvinceColombie-Britannique; Alberta; Saskatchewan; Manitoba; Ontario; Québec; Nouveau-Brunswick; Nouvelle-Écosse; Île-du-Prince-Édouard; Terre-Neuve-et-Labrador; Territoires du Nord-Ouest; Yukon; Nunavut
SNRC1; 2; 3; 10; 11; 12; 13; 14; 15; 16; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 52; 53; 54; 55; 56; 57; 58; 59; 62; 63; 64; 65; 66; 67; 68; 69; 72; 73; 74; 75; 76; 77; 78; 79; 82; 83; 84; 85; 86; 87; 88; 89; 92; 93; 94; 95; 96; 97; 98; 99; 102; 103; 104; 105; 106; 107; 114O; 114P; 115; 116; 117; 120; 340; 560
Lat/Long OENS-141.0000 -50.0000 90.0000 41.7500
Sujetsmilieu côtièr; études côtières; milieux de marée; géodésie; télédétection; géologie marine; géophysique; Nature et environnement
Résumé(disponible en anglais seulement)
In 2010, the Canadian Hydrographic Service initiated the Continuous Vertical Datum for Canadian Waters (CVDCW) project, the aim of which is to connect tidal water level datums (high and low water levels, chart datum, etc.) to a national geodetic reference frame over all Canadian tidal waters. Currently, water level datums are tied to a geodetic reference frame at approximately 400 tide stations which have been surveyed with GPS, whereas water levels vary significantly in space even a short distance away from tide stations. The CVDCW captures the relevant spatial variability between stations and offshore by integrating ocean models, gauge data (water level analyses and/or GPS observations), sea level trends, satellite altimetry, and a geoid model.
The CVDCW will enable the use of Global Navigation Satellite System technologies (primarily GPS) for hydrographers and navigators. It will also be important for other users including oceanographers, environmental and climate scientists, surveyors and engineers. For instance, it will allow easier integration of hydrographic and terrestrial data, provide a baseline for storm surge modeling and climate change adaptation, and aid with practical issues such as sovereignty and the definition of the coastline. Once high and low water surfaces are complete, they will define a large portion of the vertical link between land and ocean, helping to delineate flooding thresholds and inter-tidal ecosystem zones and boundaries.
Here we present an overview of the methodology using a set of prototype model results, and will outline features of interest for studies in coastal stability, climate change adaptation, and sea level change.
GEOSCAN ID296863