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TitreCompilation of ground temperature records in the Northwest Territories, Canada
AuteurKarunaratne, K; Kokelj, S; Morse, P; Smith, S; Wolfe, S; Palmer, M; Gruber, S; Hoeve, E; Lantz, T
SourceXI. International Conference on Permafrost: exploring permafrost in a future Earth, book of asbtacts; par Günther, F (éd.); Morgenstern, A (éd.); 2016 p. 438-439, https://doi.org/10.2312/GFZ.LIS.2016.001 (Accès ouvert)
Année2016
Séries alt.Secteur des sciences de la Terre, Contribution externe 20160068
ÉditeurAlfred Wegner Institute
ÉditeurCentre for Polar and Marine Research
ÉditeurInternational Permafrost Association
Réunion11th International Conference on Permafrost; Potsdam; DE; juin 20-24, 2016
Documentlivre
Lang.anglais
DOIhttps://doi.org/10.2312/GFZ.LIS.2016.001
Mediaen ligne; numérique
Formatspdf (Adobe® Reader®)
ProvinceTerritoires du Nord-Ouest
SNRC65D; 65E; 65L; 65M; 66D; 75; 76A; 76B; 76C; 76D; 76E; 76F; 77F; 77G; 78B; 78C; 78F; 78G; 79B; 79C; 79F; 85; 86A; 86B; 86C; 86D; 86E; 86F; 86G; 86H; 86J; 86K; 86L; 86M; 86N; 87C; 87E; 87F; 87G; 87H; 88; 89; 95; 96; 97; 98; 99; 105I; 105O; 105P; 106A; 106B; 106C; 106F; 106G; 106H; 106I; 106J; 106K; 106M; 106N; 106O; 106P; 107; 116P; 117A; 117D
Lat/Long OENS-136.5000 -102.0000 90.0000 60.0000
Sujetspergélisol; glace fossile; températures au sol; regimes thermiques; climat; collectes des données; changement climatique; base de données; norme; métadonnées; modèles; gestion de l'information; accessibilité; géologie des dépôts meubles/géomorphologie; géologie de l'environnement; Nature et environnement
ProgrammeGéosciences de changements climatiques, Infrastructures terrestres
Diffusé2016 06 01
Résumé(disponible en anglais seulement)
Knowledge of the ground thermal regime is an essential component of permafrost research, environmental monitoring, resource development projects, and infrastructure design and performance monitoring. In the Canadian North, these various needs drive the collection of ground temperature data including government and academic monitoring and research, regulatory monitoring, and industry-supported infrastructure related projects. Research and monitoring programs typically summarize the ground thermal regime in academic publications. Ground temperatures collected for infrastructure purposes are often summarized in design or maintenance reports. Regulatory monitoring data typically accompanies obligatory reporting to regulatory authorities. However, the actual temperature data used in research and monitoring, and contract reports usually reside with the research institute, government agency or private industry consultant that collected the data, and are typically not retained by institutions that are best suited to manage and archive temperature data and records, such as the Northwest Territories Geological Survey, or Geological Survey of Canada. As ground temperature data are expensive to collect, especially in remote areas, and because access to historical ground temperature data is of great value to the research community, project proponents and government, it is beneficial to organize and host these data so that it can be efficiently accessed for use in future projects for the Government of the Northwest Territories, the wider research community, industry and other users. This presentation describes our initiative to standardize and compile the metadata for the Northwest Territories' ground temperature records, so that this information can be made accessible to meet the diverse needs of potential users.
The first step towards compiling and housing ground temperature records in a database has been to establish a metadata reporting template so that information is described in a common format. Although the majority of ground temperature records are accompanied by some form of metadata, the nature of the documented supporting information varies widely depending on the purpose of data collection. Engineers and environmental scientists collecting permafrost ground temperature information may be interested in different metadata, and they may have different reporting standards and varying terminology because the information is collected for different purposes. For example, site vegetation descriptions can range from a few sentences for geotechnical investigations to detailed species inventories for research on climate-permafrost relations. The metadata standard that has been developed for the Northwest Territories builds on other initiatives such as the Global Terrestrial Network of Permafrost - GTN-P database (Biskaborn et al. 2015), and was revised based on feedback received from: permafrost researchers, thermal modellers, geotechnical engineers; public and private sector geologists; and civil servants (federal, territorial and municipal) involved with infrastructure performance monitoring. Our team has produced a metadata template that is divided into seven sections: (1) Project details; (2) Location of ground temperature measurements; (3) Installation of ground temperature cable; (4) Ground temperature record; (5) Site conditions; (6) Permafrost conditions; and (7) Related publications and data (Karunaratne et al. 2015).
Now that the metadata template is finalized, several tasks will be undertaken. First, a data management plan will be developed. Second, existing ground temperature datasets collected by the Northwest Territories Geological Survey and their collaborators will be published as NWT Open Reports so that this information can be readily accessed. Third, we will identify all historical and ongoing ground temperature data collections and archive the metadata for these records. Fourth, we will work with other departments in the Government of the Northwest Territories and northern agencies to develop strategies that leverage ground temperature data and make it accessible through this data management system. Finally, we will work with our research partners to produce an empirically-based map of ground temperatures for the Northwest Territories and synthesize patterns across a range of spatial and temporal scales.
The compilation of ground temperature records in the Northwest Territories will have multiple benefits. Evidence-based decision-making in the territory will be better supported because ground temperature data will be readily available to those involved with land use planning and infrastructure development. Future permafrost monitoring initiatives will benefit from readily accessible information on where ground temperatures have been measured, the nature of the data (sensor depth, measurement frequency, and record duration) and its availability. International permafrost research will be enhanced as scientists will have access to NWT ground temperature data that will be made available to GTN-P. Finally, other jurisdictions, such as Nunavut, who are interested in organizing, managing and disseminating ground temperature data can modify this approach to meet their needs and circumstances.
References:
Biskaborn, B.K., Lanckman, J.P., Lantuit, H., Elger, K., Dmitry, S., William, C. and Vladimir, R. (2015) The new database of the Global Terrestrial Network for Permafrost (GTN-P) , Earth System Science Data, 7 , pp. 245-259 . doi: 10.5194/essd-7-245-2015.
Karunaratne, K.C., Kokelj, S.V., Palmer, M.J., Wolfe, S.A., Gruber, S. (2015). Metadata template for ground temperature records in the Northwest Territories. In GEOQuébec 2015: Challenges from North to South / 7th Canadian Conference on Permafrost, 20-23 September 2015, Quebec City, QC.
Sommaire(Résumé en langage clair et simple, non publié)
les données de la température du sol est essentielle à la recherche sur le pergélisol, la surveillance environnementale, les projets de développement des ressources, la conception des infrastructures, et le suivi des performances. Cependant, la plupart des données en provenance du Nord canadien résident habituellement avec les instituts de recherche, des organismes gouvernementaux ou des consultants privés de l'industrie, et que ces données ne sont pas conservés par les Territoires du Nord-Ouest Geological Survey (NTGS), ou Commission géologique du Canada (CGC). Comme ces données sont importantes et coûteuses à collecter, il est avantageux d'organiser et d'accueillir ces données pour une utilisation future. Compiler des informations d'attribut sur les données recueillies à partir de ces sources multiples peut être problématique, car il n'existe pas des protocoles normalisés pour les métadonnées. Miser sur un modèle de métadonnées mis au point un plan de gestion des données sera développé, existant GTN et la CGC ensembles de données de température du sol recueillies et publiées, leurs métadonnées décrit et archivée, et ces activités sera utilisé pour exploiter les données provenant de sources externes.
GEOSCAN ID298797