seif

Tarkoititko: sei

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englanti A sand dune that elongates parallel to the prevailing wind.
1954, Bulletin of the Research Council of Israel, Volume 4, http://books.google.com/books?id=vIhFAQAAIAAJ&q=%22seif seifs%22&dq=%22seif|seifs%22&hl=en&ei=9sN9TpzrHa2JmQW1w4yjBQ&sa=X&oi=book_result&ct=result&resnum=8&ved=0CE8Q6AEwBzge page 196,
Such seifs have a somewhat zig-zag form instead of a fairly straight line.
On the top of seifs small transverse dunelets are very often found, and these may be likened to almost straightened-out barchans.(..)On the top of the seif they form a wave-like pattern with a fairly defined "wavelength".
1973, Ralph Alger Bagnold, The Physics of Blown Sand and Desert Dunes, http://books.google.com/books?id=-bUPAQAAMAAJ&q=%22seif seifs%22&dq=%22seif|seifs%22&hl=en&ei=-759TqeoHeH6mAWx0qCjBQ&sa=X&oi=book_result&ct=result&resnum=5&ved=0CEQQ6AEwBDgU page 224,
Though the actual transition forms suggested in Fig. 76 do exist and have been examined by the author, the above tentative explanation of the growth of a seif dune chain should certainly not be taken as implying that all such chains have originated as barchans.
1980, P. Turner, Continental Red Beds, http://books.google.com/books?id=uSEUCRUTD7gC&pg=PA80&dq=%22seif seifs%22&hl=en&ei=9sN9TpzrHa2JmQW1w4yjBQ&sa=X&oi=book_result&ct=result&resnum=2&ved=0CDQQ6AEwATgev=onepage&q=%22seif|seifs%22&f=false page 80,
Seifs are longitudinal forms elongated parallel to the prevailing wind direction.
{{quote-journal|date=February 26, 2009|author=Bruno Andreotti et al.|title=Giant aeolian dune size determined by the average depth of the atmospheric boundary layer|work=Nature|url=|doi=10.1038/nature07787|volume=457|issue=7233|pages=1120-1123
thirst

Läheisiä sanoja

segmentointi, segmentoitua, segmentti, sei, seikka, seikkailija

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