SALTATION

作品数：37被引量：101H指数：6
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相关期刊：《International Soil and Water Conservation Research》《Research in Cold and Arid Regions》《Science China Earth Sciences》《International Journal of Sediment Research》更多>>
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Aeolian sediment transport over sandy gobi:Field studies in the Nanhu gobi along the Hami-Lop Nor Railway被引量：1
《International Soil and Water Conservation Research》2023年第1期125-134,共10页Tao Wang Jianjun Qu Lihai Tan 
supported by the National Natural Science Foundation of China(41901011,41730644 and 41871018);the Open Fund of Key Laboratory of Desert and Desertification,Chinese Academy of Sciences(KLDD-2019-002);the Open Fund of State Key Laboratory Breeding Base of Desertification and Aeolian Sand Disaster Combating(GSDC201903).
Wind-blown sand over sandy gobi with an abundant sediment supply can cause severe sand hazards.However,compared with the study of aeolian transport over gravel gobi with a limited sediment supply,less attention has be...
关键词：Sandy gobi Saltation threshold salcation layer height Sediment transport rates Wind-blown sand control 
Separating emitted dust from the total suspension in airflow based on the characteristics of PM10 vertical concentration profiles on a Gobi surface in northwestern China
《Journal of Arid Land》2022年第6期589-603,共15页ZHANG Chunlai WANG Xuesong CEN Songbo ZHENG Zhongquan Charlie WANG Zhenting 
This work was supported by the National Natural Science Foundation of China(41630747).
During aeolian processes,the two most critical factors related to dust emissions are soil particle and aggregate saltation,which greatly affect the vertical profiles of near-surface dust concentrations.In this study,w...
关键词：PM10 vertical concentration profiles dust emission rate saltation intensity suspensions Gobi surface 
Large scale sand saltation over hard surface:a controlled experiment in still air被引量：2
《Journal of Arid Land》2021年第6期599-611,共13页LIU Benli WANG Zhaoyun NIU Baicheng QU Jianjun 
supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(XD23060201);the Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou)(GML2019ZD0601);the National Natural Science Foundation of China(42071014);the Excellent Youth Innovation Promotion Association of the Chinese Academy of Sciences(Y202085)。
Saltation is the major particle movement type in wind erosion process.Saltating sand grains can rebound up to tens of times larger in length and height over hard surface(such as gravel surface)than over loose sand sur...
关键词：sand saltation TRAJECTORY gravel surface contact angle full-scale experiment 
Theoretical expressions for soil particle detachment rate due to saltation bombardment in wind erosion被引量：1
《Research in Cold and Arid Regions》2020年第4期234-241,共8页XuYang Liu WenXiao Ning ZhenTing Wang 
supported by Natural Science Foundation of China projects(Nos.41971011 and 41630747).
Saltation bombardment is a dominate dust emission mechanism in wind erosion.For loose surfaces,splash entrainment has been well understood theoretically.However,the mass loss predictions of cohesive soils are generall...
关键词：wind erosion saltation bombardment cohesive soil anti-erodibility 
Sand particle lift-off velocity measurements and numerical simulation of mass flux distributions in a wind tunnel被引量：4
《Journal of Arid Land》2017年第3期331-344,共14页XIAO Fengjun DONG Zhibao GUO Liejin WANG Yueshe LI Debiao 
supported by the Fundamental Research Funds for the Central Universities of China(GK201503053);the National Natural Science Foundation of China(41601002)
Lift-off velocity of saltating sand particles in wind-blown sand located at 1.0 mm above the sand bed surface was measured using a phase Doppler particle analyzer in a wind tunnel. The results show that the probabilit...
关键词：lift-off velocity lift-off angle joint probability distribution sand mass flux SALTATION 
On the mechanisms of the saltating motion of bedload
《International Journal of Sediment Research》2017年第1期53-59,共7页Youhua Chen Yuchuan Bai Dong Xu 
supported by the Longyuan Young Innovative Talents Personnel Support Project of Gansu Province;the Development Plan of Hundred Young Talents of Jinchang;National Natural Science Foundation for Innovative Research Groups of China(Grant No.51321065);the National Natural Science Foundation of China(Grant No.51279124 and 51009105);the Natural Science Foundation of Tianjin(Grant no.12JCQNJC05600)
Saltation of sediment particles is an important pattern of bedload transport. Based on force analysis for sediment particles, a Lagrangian model was proposed for the saltating motion of bedload in river flows, which w...
关键词：BedloadSaltationNumerical modelTransport rate 
Numerical investigation of particle saltation in the bed-load regime被引量：10
《Science China(Technological Sciences)》2014年第8期1500-1511,共12页JI ChunNing ANTE Munjiza ELDAD Avital XU Dong JOHN Williams 
supported by a Marie Curie International Incoming Fellowship within the seventh European Community Framework Programme(Grant No.PIIF-GA-2009-236457);the financial support of the Science Fund for Creative Research Groups of the National Natural Science Foundation of China(Grant No.51321065);Programme of Introducing Talents of Discipline to Universities(Grant No.B14012);National Natural Science Foundation of China(Grant Nos.50809047 and 51009105);Natural Science Foundation of Tianjin(Grant No.12JCQNJC02600)
This paper numerically investigates particle saltation in a turbulent channel flow having a rough bed consisting of 2–3 layers of densely packed spheres.In this study,we combined three the state-of-the-art technologi...
关键词：particle saltation bed-load regime hydrodynamic forces turbulent channel flow 
Soil Moisture Effects on Sand Saltation and Dust Emission Observed over the Horqin Sandy Land Area in China被引量：8
《Journal of Meteorological Research》2014年第3期444-452,共9页李晓岚 张宏升 
Supported by the National(Key)Basic Research and Development(973)Program of China(2010CB428501);China Meteorological Administration Special Public Welfare Research Fund(GYHY201006014);National Natural Science Foundation of China(41075005);Research Fund for Doctoral Program of Higher Education of China(20110001130010)
In this study, the eff ects of soil moisture on sand saltation and dust emission over the Horqin Sandy Land area are investigated, based on observations of three dust events in 2010. The minimum friction velocity init...
关键词：soil moisture sand saltation dust emission Horqin Sandy Land area 
Measuring the kinetic parameters of saltating sand grains using a high-speed digital camera被引量：5
《Science China(Physics,Mechanics & Astronomy)》2014年第6期1137-1143,共7页ZHANG Yang WANG Yuan JIA Pan 
supported by the National Natural Science Foundation of China(Grant No.11272252)
A high-speed digital camera is used to record the saltation of three sand samples(diameter range:300–500,200–300 and100–125μm).This is followed by an overlapping particle tracking algorithm to reconstruct the salt...
关键词：high-speed digital camera sand saltation particle tracking kinetic parameters 
Sand flux and wind profiles in the saltation layer above a rounded dune top被引量：6
《Science China Earth Sciences》2014年第3期523-533,共11页ZHANG ChunLai ZHOU Na ZHANG JiaQiong 
supported by the National Natural Science Foundation of China(Grant Nos.41171004&40871015)
The near-bed airflow and the movement of sand dune sediments by wind are fundamental dune geomorphological processes.This research measured the wind profiles and sand mass flux on the rounded top of a transverse dune ...
关键词：sand mass flux roughness length shear velocity modified Charnock constant 
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