SALTATION SAND TRAPS FOR THE MEASUREMENT OF AEOLIAN TRANSPORT INTO THE FOREDUNES

被引：30

作者：

ARENS, SM

VANDERLEE, GEM

机构：

[1] Department of Physical Geography and Soil Science, University of Amsterdam, 1018 VZ Amsterdam

来源：

SOIL TECHNOLOGY | 1995年 / 8卷 / 01期

关键词：

SAND TRAPS; CATCHING EFFICIENCY; AEOLIAN SAND TRANSPORT; FIELD MEASUREMENTS; WIND TUNNEL; FOREDUNES;

D O I：

10.1016/0933-3630(95)00007-5

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

An omnidirectional vertical sand trap is described for use in the measurement of sand transported by wind in the dune environment. In the field these traps yielded good results. The traps were calibrated by comparing them with a Bagnold trap of known efficiency and by wind tunnel experiments. Efficiency of the trap was not constant, being dependent on the wind speed, the grain-size distribution of the sediment and the moisture content. The calibration resulted an efficiency of between 15 and 20%. The highest efficiencies were observed for wind speeds of 8 m/s. For lower wind speeds the efficiency decreased because of the increasing importance of creep. With higher wind speeds the efficiency was reduced because of an increasing loss by blowout.

引用

页码：61 / 74

页数：14

共 15 条

[1] Al-Khalaf, Specification and calibration of Bagnold's model for sand transport: Urayq al Buldan Dunefield, unpublished PhD diss, (1986)
[2] Arens, Transport of sand into the foredunes of Schiermonnikoog
[3] report on the field measurements 1990–1991, Report, University of Amsterdam, (1992)
[4] Arens, Aeolian processes in the Dutch foredunes, PhD thesis, (1994)
[5] Bagnold, The Physics of Blown Sand and Desert Dunes, (1954)
[6] De Ploey, Some field measurements and experimental data on wind-blown sand, Assessment of Erosion, pp. 541-552, (1980)
[7] Folk, Ward, Brazos River Bar a study on the significance of grain-size parameters, Journal of Sedimentary Research, 27, pp. 3-26, (1957)
[8] Fryberger, Al-Sari, Clisham, Rizvi, Al-Hinai, Wind sedimentation in the Jafurah sand sea, Saudi Arabia, Sedimentology, 31, pp. 413-431, (1984)
[9] Horikawa, Shen, Sand movement by wind action (on the characteristics of sand traps), Beach Erosion Board, Tech. Memo. 119. USA, (1960)
[10] Jensen, Rasmussen, Sorensen, Willetts, The Hanstholm experiment 1982. Sand grain saltation on a beach, Research Report 125, (1984)

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