Arid
DOI10.1016/j.aeolia.2014.07.002
Fundamental mismatches between measurements and models in aeolian sediment transport prediction: The role of small-scale variability
Barchyn, Thomas E.1; Martin, Raleigh L.2; Kok, Jasper F.2; Hugenholtz, Chris H.1
通讯作者Barchyn, Thomas E.
来源期刊AEOLIAN RESEARCH
ISSN1875-9637
EISSN2212-1684
出版年2014
卷号15页码:245-251
英文摘要

Predicting aeolian sediment transport is a long-standing and difficult challenge that is important to a variety of scientific disciplines, including geology, geomorphology, agriculture, meteorology, and climatology. Here, we argue that improvements in predictions of aeolian sediment transport are limited by incompatibilities between empirical measurements and mathematical models. We focus on the spatial and temporal variability in transport. Measurements indicate considerable variability on small time (second) and length (meter) scales, yet models are almost ubiquitously based on assumptions of time and space-invariant transport. Mismatches between measurements and models limit summative predictive capacity by reducing the ability to use measured data to test and drive models. We suggest: (i) revising model conceptualizations and evaluating the representativeness of steady state saltation to constrain the realism of existing models, (ii) improving and optimizing measurement technology to produce more reliable and accurate measurements, (iii) explicitly specifying the scale of measurements, and (iv) designing variable matching tests between models and measurements to work around measurement limitations. Continuing with the status quo, where measurements and models are dealt with separately, is likely to erode summative predictive capacity. (C) 2014 Elsevier B.V. All rights reserved.


英文关键词Aeolian sediment transport Prediction Measurement Modeling
类型Article
语种英语
国家Canada ; USA
收录类别SCI-E
WOS记录号WOS:000344423300020
WOS关键词WIND-BLOWN SAND ; TRANSITIONAL BEHAVIOR ; IN-FIELD ; SALTATION ; FLUX ; TUNNEL ; DUST ; DESERT ; SIZE ; DUNES
WOS类目Geography, Physical
WOS研究方向Physical Geography
来源机构University of California, Los Angeles
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/180440
作者单位1.Univ Calgary, Dept Geog, 2500 Univ Dr NW, Calgary, AB T1K 3M4, Canada;
2.Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA 90095 USA
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GB/T 7714
Barchyn, Thomas E.,Martin, Raleigh L.,Kok, Jasper F.,et al. Fundamental mismatches between measurements and models in aeolian sediment transport prediction: The role of small-scale variability[J]. University of California, Los Angeles,2014,15:245-251.
APA Barchyn, Thomas E.,Martin, Raleigh L.,Kok, Jasper F.,&Hugenholtz, Chris H..(2014).Fundamental mismatches between measurements and models in aeolian sediment transport prediction: The role of small-scale variability.AEOLIAN RESEARCH,15,245-251.
MLA Barchyn, Thomas E.,et al."Fundamental mismatches between measurements and models in aeolian sediment transport prediction: The role of small-scale variability".AEOLIAN RESEARCH 15(2014):245-251.
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