Objectives and main content of ACD
The Arctic Coastal Dynamics (ACD) program is a multi-disciplinary, multi-national forum to exchange ideas and information. The overall objective of ACD is to improve our understanding of circum-Arctic coastal dynamics as a function of environmental forcing, coastal geology and cryology and morphodynamic behavior. Figure 1 schematically summarizes the relevant parameters and processes. In particular, the ACD program proposed to:
  • establish the rates and magnitudes of erosion and accumulation of Arctic coasts;
  • develop a network of long-term monitoring sites including local community-based observational sites;
  • identify and undertake focused research on critical processes;
  • estimate the amount of sediments and organic carbon derived from coastal erosion;
  • refine and apply an Arctic coastal classification (includes ground ice, permafrost, geology, etc.) in digital form (GIS format);
  • compile, analyze and apply existing information on relevant environmental forcing parameters (e.g. wind speed, sea level, fetch, sea ice etc.);
  • develop empirical models to assess the sensitivity of Arctic coasts to environmental variability and human impacts;
  • produce a series of thematic and derived maps (e.g. coastal classification, ground-ice, sensitivity etc.);
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