(Article of periodic en Anglais - 2011)

Document title

Mars Global Digital Dune Database (MGD3): north polar region (MC-1) distribution, applications, and volume estimates

Authors(s) and Affiliation(s)

HAYWARD R.K. (1) ;
(1) US Geological Survey, Arizona, Flagstaff, ETATS-UNIS


The Mars Global Digital Dune Database (MGD3) now extends from 90°N to 65°S. The database, available in GIS- and tabular-format in USGS Open-File Reports, makes it possible to examine global dune distribution patterns and to compare dunes with other global data sets (e.g. atmospheric models). The utility of MGD3 is demonstrated through three example applications. First, the uneven geographic distribution of the dunes is discussed and described. Second, dune-derived wind direction and its role as ground truth for atmospheric models is reviewed. Comparisons between dune-derived winds and global and mesoscale atmospheric models suggest that local topography may have an important influence on dune-forming winds. Third, the methods used here to estimate north polar dune volume are presented and these methods and estimates are compared with those of previous researchers


Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2011, vol. 36, no14 [pp. 1967-1972]

Bibliographic references : 31 ref.

Collation : 1 fig., 1 tabl.



INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.2219

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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