Field Construction Trial for Effect Evaluation of Dune Scarp Conservation and Onshore Sediment Transport by Sand Dune Scarp Control Works
نویسندگان
چکیده
منابع مشابه
Slope effect on saltation over a climbing sand dune
Results from a three-year study are presented that integrate field work (in Israel), physical modeling (wind-tunnel testing at UC Davis), and numerical solutions of grain trajectories to model and explain sand transport over a climbing dune. Field grain-size analyses of surfaceand saltation-trap materials taken along various positions of the slope suggest that only smaller particles (< 230 pm i...
متن کاملModelling a Dune Field
We present a model to describe the collective motion of barchan dunes in a field. Our model is able to reproduce the observation that a typical dune stays confined within a stripe. We also obtain some of the pattern structures which ressemble those observed from aerial photos which we do analyse and compare with the specific field of Laâyounne.
متن کاملLong-time evolution of models of aeolian sand dune fields: Influence of dune formation and collision
Article history: Theoretical models which a Received 18 July 2008 Received in revised form 8 December 2008 Accepted 6 February 2009 Available online xxxx
متن کاملThe dune effect on sand-transporting winds on Mars
Wind on Mars is a significant agent of contemporary surface change, yet the absence of in situ meteorological data hampers the understanding of surface-atmospheric interactions. Airflow models at length scales relevant to landform size now enable examination of conditions that might activate even small-scale bedforms (ripples) under certain contemporary wind regimes. Ripples have the potential ...
متن کاملDune Widths in Titan’s Belet Sand Sea Reveal Patterns in Dune Formation and Stability
Introduction: Eolian dune fields found within Ti-tan's equatorial region between +30° latitude cover approximately 15-17% of the moon's surface [1]. These dominantly linear dunes are similar in form, size, and radar reflectivity to the large dunes of the Namib, Saharan, Saudi Arabian, and Australian deserts [2][3]. Earth analog studies indicate that the presence of linear dunes suggests adequat...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
سال: 2013
ISSN: 1884-2399,1883-8944
DOI: 10.2208/kaigan.69.i_726