Examining Environmental Gradients with Remotely Sensed Data – the ESA GlobPermafrost project


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guido.grosse [ at ] awi.de

Abstract

Permafrost cannot be directly detected from space, but many surface features of permafrost terrains and typical periglacial landforms are observable with a variety of EO sensors ranging from very high to medium resolution at various wavelengths. In addition, landscape dynamics associated with permafrost changes and geophysical variables relevant for characterizing the state of permafrost, such as land surface temperature or freeze-thaw state can be observed with space-based Earth Observation. Suitable regions to examine environmental gradients across the Arctic have been defined in a community white paper (Bartsch et al. 2014). These transects have been updated within the ESA DUE GlobPermafrost project. The ESA DUE GlobPermafrost project develops, validates and implements Earth Observation (EO) products to support research communities and international organisations in their work on better understanding permafrost characteristics and dynamics. Prototype product cases will cover different aspects of permafrost by integrating in situ measurements of subsurface properties and surface properties, Earth Observation, and modelling to provide a better understanding of permafrost today. The project will extend local process and permafrost monitoring to broader spatial domains, support permafrost distribution modelling, and help to implement permafrost landscape and feature mapping in a GIS framework. It will also complement active layer and thermal observing networks. Both lowland (latitudinal) and mountain (altitudinal) permafrost issues are addressed. The selected transects and first results will be presented. This includes identified needs from the user requirements survey, a review of existing land surface products available for the Arctic as well as prototypes of GlobPermafrost datasets, and the permafrost information system through which they can be accessed.



Item Type
Conference (Talk)
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Not peer-reviewed
Publication Status
Published
Event Details
European Geosciences Union General Assembly, 23 Apr 2017 - 28 Apr 2017, Vienna, Austria.
Eprint ID
48585
Cite as
Bartsch, A. , Grosse, G. , Kääb, A. , Westermann, S. , Strozzi, T. , Wiesmann, A. , Duguay, C. , Seifert, F. M. , Obu, J. , Nitze, I. , Heim, B. , Haas, A. and Widhalm, B. (2017): Examining Environmental Gradients with Remotely Sensed Data – the ESA GlobPermafrost project , European Geosciences Union General Assembly, Vienna, Austria, 23 April 2017 - 28 April 2017 .


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