Accuracy assessment of land surface temperature retrievals f
Details of Research
TitleAccuracy assessment of land surface temperature retrievals from Landsat 7 ETM + in the Dry Valleys of Antarctica using iButton temperature loggers and weather station dataAbstractThe McMurdo Dry Valleys of Antarctica are the largest snow/ice-free regions on this vast continent, comprising 1 percent 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. Copyright 2013 Springer Science+Business Media.AcknowledgementsThis research was supported by special International Polar Year funding from the Foundation for Research Science and Technology, New Zealand. Antarctic New Zealand provided logistical support for fieldwork in the study area. Many field assistants helped place and recover iButtons in the field, in particular Charles Lee and Jonathan Banks.
TypeArticleCitationBrabyn, L., Zawar-Reza, P., Stichbury, G., Cary, C., Storey, B., Laughlin, D. and Katurji, M. (2014). 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, 186(4): 2619-2628
Antarctica NZ (26th Nov 2018). Accuracy assessment of land surface temperature retrievals f . In Website Antarctica NZ. Retrieved 18th Jan 2021 09:32, from https://adam.antarcticanz.govt.nz/nodes/view/63406