ABSTRACT. This study provides an analysis of six years of daily air temperature data collected using 16 HOBO ® UA-002-64 Pendant data loggers placed along a 280 km transect in southwestern Yukon and northern British Columbia. Correlation and time series analyses, including Seasonal Decomposition of Time Series by Loess (STL) methods, revealed very high correlations among all data series at daily to annual timescales. The two meteorological stations in the region are found to be generally representative of the greater area, and local temperature variability appears to be predominantly determined by synoptic-scale weather patterns. The annual temperature cycle in this region is complex and has annually repeating components at all study sites across the region. The analysis of daily data using the STL method can provide new insight into climate time series and enhance our ability to observe patterns and extremes in temperatures across varying spatial and temporal scales. Data loggers provide a cost-effective way of obtaining similar (and sometimes higher-quality) information compared to meteorological stations or gridded global datasets.Key words: Yukon climate, HOBO data logger, meteorological station network, daily and hourly temperature dataset, time series analysis, seasonal-trend decomposition (STL) RÉSUMÉ. Cette étude présente l'analyse de données sur la température de l'air prélevées au cours de six années à l'aide de 16 enregistreurs de données HOBO MD UA-002-64 Pendant le long d'un transect de 280 km situé dans le sud-ouest du Yukon et le nord de la Colombie-Britannique. L'analyse des corrélations et des séries temporelles, faisant notamment appel aux méthodes de décomposition saisonnière des séries temporelles de Loess (STL), ont révélé de très fortes corrélations entre toutes les séries de données aux échelles de temps allant de quotidiennes à annuelles. Les deux stations météorologiques de la région sont généralement représentatives de la grande région, et la variabilité des températures locales semble principalement déterminée par le régime climatique à l'échelle synoptique. Dans cette région, le cycle des températures annuelles est complexe. Il comprend des composantes récurrentes annuellement à tous les sites étudiés, à la grandeur de la région. L'analyse des données quotidiennes à l'aide de la méthode STL peut donner une nouvelle perspective des séries temporelles climatiques et rehausser notre capacité à observer les tendances et les extrêmes de températures pour des échelles spatiales et temporelles variées. Les enregistreurs de données constituent une manière économique d'obtenir des renseignements similaires (et parfois de meilleure qualité), comparativement aux données des stations météorologiques ou aux ensembles de données globales sous forme de valeurs aux points de grille.Mots clés : climat du Yukon, enregistreur de données HOBO, réseau de stations météorologiques, ensemble de données de températures quotidiennes et horaires, analyse des séries temporelles, décomposition des tendances saiso...
lake in southern Alaska to infer changes in the trajectory of storm tracks in a region dominated by the influence of the Aleutian low-pressure system.
Percussion coring systems rely on a moveable weight to push a core barrel into the sediment. The corer, attached to a cable, is lowered through the water column until it reaches the sediment. A second line is then used to raise then drop the weight on top of the core barrel. Over the years, several types of lightweight, percussion coring systems have been developed for use in remote locations where the weight of the equipment is a major concern. We used a Universal percussion corer to obtain sediment from lakes near the Jorge Montt Glacier in the Chilean Patagonia. Choosing a core sampling system was complicated by logistics: the remoteness of the field site and by the cumbersome nature of the equipment (including two small, inflatable boats) which had to be carried, on foot, over difficult terrain. We chose this particular corer as it is relatively inexpensive, lightweight, and easily assembled. It consists of a Universal core head (69 mm diam.), gravity weights, clear polycarbonate core barrels (120 cm and 240 cm long) and a slide hammer. We worked on shallow lakes (less than 5 m depth) from an unstable platform. However, this corer can be deployed in much deeper lakes. We could only recover short sediment cores because the lakes around Jorge Montt Glacier are very young. Nonetheless, we found this percussion core sampling system to perform well in the field but its full potential could not be assessed due to various particulars of the expedition.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2025 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.