Zusammenfassung
Aeolian dune fields have been described on Earth, Mars, Venus and Titan.
The plethora of data returned from recent planetary missions has enabled
a new era in planetary geomorphic studies. Much of our understanding of
planetary dune systems comes from the application of Earth analogs, wind
tunnel experiments and modeling studies. Despite the range of
atmospheric pressures, composition and gravity, many of the dune forms
on extraterrestrial surfaces are similar to those on Earth, although
some have notable differences in bedform scale and composition. As an
introduction to the special issue on planetary dune systems this paper
summarizes the current state of knowledge of planetary dune studies and
highlights outstanding questions that require further investigation. (C)
2010 Elsevier B.V. All rights reserved.
Nutzer