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      Accuracy assessment of land surface temperature retrievals from Landsat 7 ETM + in the Dry Valleys of Antarctica using iButton temperature loggers and weather station data

      Brabyn, Lars; Zawar-Reza, Peyman; Stichbury, Glen; Cary, S. Craig; Storey, Bryan; Laughlin, Daniel C.; Katurji, Marwan
      DOI
       10.1007/s10661-013-3565-9
      Link
       link.springer.com
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      Brabyn, L., Zawar-Reza, P., Stichbury, G., Cary, C., Storey, B., …, Katurji, M. (2013). Accuracy assessment of land surface temperature retrievals from Landsat 7 ETM + in the Dry Valleys of Antarctica using iButton temperature loggers and weather station data. Environmental Monitoring and Assessment, published online 24 December 2013.
      Permanent Research Commons link: https://hdl.handle.net/10289/8371
      Abstract
      The McMurdo Dry Valleys of Antarctica are the largest snow/ice-free regions on this vast continent, comprising 1 % of the land mass. Due to harsh environmental conditions, the valleys are bereft of any vegetation. Land surface temperature is a key determinate of microclimate and a driver for sensible and latent heat fluxes of the surface. The Dry Valleys have been the focus of ecological studies as they arguably provide the simplest trophic structure suitable for modelling. In this paper, we employ a validation method for land surface temperatures obtained from Landsat 7 ETM + imagery and compared with in situ land surface temperature data collected from four transects totalling 45 iButtons. A single meteorological station was used to obtain a better understanding of daily and seasonal cycles in land surface temperatures. Results show a good agreement between the iButton and the Landsat 7 ETM + product for clear sky cases. We conclude that Landsat 7 ETM + derived land surface temperatures can be used at broad spatial scales for ecological and meteorological research.
      Date
      2013
      Type
      Journal Article
      Publisher
      Springer
      Collections
      • Science and Engineering Papers [3077]
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