Considering the importance of the duststorm phenomenon in the regional and global climatological context, this study sets out to examine the relationship between annual and interannual fluctuations in duststorm frequency and rainfall
Sediment loads in an Australian duststorm: implications for present and past dust processes
Arid area ; Australia ; Desert ; Duststorm ; Model ; Queensland ; Soil erosion ; Suspended load ; Wind erosion
The purpose of this paper is to quantify the amount of dust moved in a duststorm in Western Queensland in 1987, and to describe the environmental effects (present and past) of dust entrainment, transport and deposition in the Australian region.
Quantitative estimates of the effect of climate change on duststorm activity in Australia during the Last Glacial Maximum
Aeolian features ; Aeolian transport ; Australia ; Climatic variation ; Duststorm ; Global change ; Lateglacial ; Quaternary ; Spatial variation
Quantitative estimates are made of the effect of climate change upon dust activity during the Last Glacial Maximum (LGM), which peaked 18,000 years ago, using present-day measurements of the occurence of duststorms recalculated in the light
of information on LGM climatic change. Duststorm seasons were lengthened and dust paths were modified. Estimates based upon climate alone, without considering the increased supplies of sediment to dust source areas during the LGM, however, probably underestimate
The influence of different underlying surface on sand-duststorm in northern China
Arid area ; China ; Duricrust ; Duststorm ; Lithology ; Northern China ; Sand ; Surface deposits ; Wind
In this paper, a quantitative research on the relationship between different underlying surface and sand-duststorm has been made by using 40 years meteorological data of 5 different types of underlying surface in northern China, which include
farmland, grassland, sandland, gobi and salt crust. These data comprise sand-duststorm days and strong wind days. The AA. find that there are certain correlations between the days of sand-duststorm and strong wind for different underlying surfaces, which
has great influence on sand-duststorm. There are pronounced differences in different types of underlying surface.
Aeolian dust ; Atmospheric dynamics ; Climatology ; Duststorm ; Environment ; Land atmosphere interaction ; Temperature
The study presents some key factors influencing the formation, size and frequency of duststorms and describes the connection between temperature and eolian dust deposits. The role of duststorms and atmospheric dust in environmental processes
Duststorms evolution in Taklimakan Desert and its correlation with climatic parameters
Arid area ; China ; Climate ; Climatic data ; Desert ; Duststorm ; Human impact ; Precipitation ; Temperature ; Wind speed ; Xinjiang
Based on the sand duststorms data and climatic data in 12 meteorological stations around sand duststorm originating areas of the Taklimakan Desert, the AA. analyzed the trends of the number of duststorm days from 1960 to 2005 as well
as their correlations with temperature, precipitation, wind speed and the number of days with mean wind speed >5 m/s, to determine the influence of climatic parameters on sand duststorms. The results show that the frequency of duststorm events in the Taklimakan region
decreased with the elapse of time. Climatic factor is one of the major conditions for the occurrence of sand duststorm, but not the only one. The disturbance of human activities will become another important trigger for China's frequent sand duststorms.
Correlation between rainfall and dust occurrence at Mildura, Australia : the difference between local and source area rainfalls
Australia ; Climatology ; Correlation ; Drought ; Dust ; Duststorm ; Precipitation ; Victoria ; Wind
The AA. use dust records at Mildura, Australia along with observed wind directions during duststorms and events and both local and regional source area rainfall for the period 1960-1989 to test the adequacy of using local rainfall and to show
the improvement that could be achieved by using regional rainfall in the likely dust source area.
Sand duststorms in and around the Ordos Plateau of China as influenced by land use change and desertification
Aeolian features ; Arid area ; China ; Desertification ; Duststorm ; Inner Mongolia ; Land use ; Shaanxi ; Soil degradation ; Wind erosion
The A. reports a non-linear relationship between sand-duststorm frequency and the index of land degradation which is defined as the percentage of the area of total land that is desertified. Using this non-linear relationship, a threshold
is established which means that sand-duststorm frequency would increase abruptly when the human-induced exceeds 30%. The time series of annual number of sand-duststorm days in the neighbouring area has been compared to the time series in the annual number
Optical depth, size distribution and flux of dust from Owens Lake, California
Aeolian dust ; Aeolian features ; Aerosol ; Arid area ; California ; Duststorm ; Grain size distribution ; Lake ; Remote sensing ; United States of America
storm activities from 11-25 March 1993 and April 1996. The purpose of this work was to estimate total mass of dust removed during individual dust events. The duststorms were clearly identified by surface observations and satellite as originating
Projects LODE (Lake Owens Dust Experiments) took place on the anthropogenically desertified playa and surrounding regions of Owens Lake, in east-central California. Optical depth measurements were taken and aerosol samples were obtained during dust
Possible influence of Arctic Oscillation on duststorm frequency in North China
Air mass ; Atmospheric dynamics ; China ; Climate oscillation ; Climatology ; Cold front ; Correlation ; Duststorm ; Northern China ; Simulation ; Statistical analysis ; Synoptic climatology
This study has investigated the influence of Arctic Oscillation (AO) on duststorm frequency in North China in spring seasons during 1961–2007. There is a significant linkage between duststorm frequency and AO; a negative (positive) AO phase
is related to an increased (decreased) duststorm frequency in North China. This relationship is closely related to changes in the cold air activity in Mongolia. The cold air activity exerts large impacts on the duststorm frequency; the frequency of cold air
activity over Mongolia not only positively correlates with the duststorm frequency in North China, but also shows a long-term decreasing trend that is an important reason for the long-term decreasing of duststorm frequency in North China.
This paper deals with eolian deposits and duststorms in Greece. Statistics on episodes with atmospheric dust are extracted from meteorological data taken at a number of Greek weather stations. In addition eolian dust of probably Saharan origin
Wind tunnel experiments and field measurements of aeolian dust deposition on conical hills
The spatial pattern of short-term aeolian dust deposition on and around cone-shaped hills is investigated via the simulation, in a wind tunnel, of duststorms over a topographic scale model of a conical hill in the Negev desert, Israel. The results
are tested during a full-scale duststorm in the Negev.
Duststorm erosion and its impact on soil carbon and nitrogen losses in northern China
Agricultural practice ; Arid area ; Carbon ; China ; Duststorm ; Nitrogen ; Northern China ; Nutrient ; Soil conservation ; Soil erosion ; Wind erosion
This paper reviews the recent literature concerning duststorm-related soil erosion and its impact on soil C and N losses in northern China. The purpose of this study is to provide an overview of the area of erosion-affected soils and to estimate
the magnitude of soil C and N losses from farmland affected by duststorm erosion. The results indicate that soil conservation measures along with improved soil fertility management measures should be promoted in dry-land farming areas of northern China.
Effects of spatial variations in source areas upon dust concentration profiles during three wind erosion events in Australia
Aeolian features ; Aeolian transport ; Arid area ; Australia ; Duststorm ; Erodibility ; Floodplain ; Model ; Queensland ; Spatial variation ; Wind erosion
Duststorms are a major contributor to soil erosion in inland Australia, and the Simpson Desert-Channel Country region is one of the most active wind erosion regions. While information is available on wind erosion rates at the land-type level
, little is known about the influence that spatial variations in the erodibility within a land type have on the resulting dust concentration profile. A Gaussian plume model, DSIS, is presented along with tower-based dust data, to describe the influence
of different spatial combinations of dust source areas, during 3 dust events on the Diamantina River floodplain in Western Queensland, Australia.
Desert dust-storms and loess deposits in North Africa and South Europe
Africa ; C14 dating ; Crète ; Desert ; Duststorm ; Eolian dust ; Eolian features ; Eolian transport ; Greece ; Loess ; Northern Africa ; Palaeosol ; Pedogenesis ; Peloponnesus ; Quaternary ; Sahara ; Thermoluminescence
Studies of recent dustfall in the Western and Eastern Mediterranean islands and mainlands give support to the hypothesis of eolian dust deposition from Africa. It is probably an important contribution to soil formation, slope wash and stream
sediments in the Mediterranean area. The quantitative role of African dust input, its history and distribution in time and space ought to be the subject of continued research.
Dust-storm source areas determined by the total ozone monitoring spectrometer and surface observations
Aeolian features ; Aeolian transport ; Aerosol ; Africa ; Arid area ; Asia ; Atmospheric circulation ; Australia ; Bolivia ; Data ; Duststorm ; Great Basin ; Meteorology ; Sahara ; United States of America ; Wind erosion
The AA. investigate the large-scale structure of atmospheric dust and its relationship with the processes governing surface geomorphology and atmospheric circulation. Specifically, they describe the mean global distribution of mineral dust, identify
the key regions of deflational activity and the associated geomorphological context, assess the relative magnitude of various source areas, and consider the relationship of atmospheric dust and tropospheric transport mechanisms.
Numerical simulation of two East Asian duststorms in spring 2006
Aeolian transport ; Beijing ; China ; Comparative study ; Duststorm ; Numerical model ; Satellite imagery ; Simulation ; Weather type
In this study the AA. focus the investigation of two duststorm events that occurred in spring 2006 over northern China (on 9-11 April and on 16-17 April). They caused widespread dust deposition, especially in the vicinity of Beijing. The weather
systems that generated these duststorms were cold fronts associated with Mongolia cyclones. These events are simulated using a dust-storm model developed at the Institute of Atmospheric Physics, Beijing. The simulated dust concentrations are found
Aeolian dust transport and deposition by foehn winds in an alpine environment, Lake Tekapo, New Zealand
Aeolian features ; Aeolian transport ; Duststorm ; Erodibility ; Foehn ; Lacustrine basin ; Mountain ; New Zealand ; South Island ; Topography ; Wind erosion ; Wind speed
throughout the study indicate that foehn windstorms provide ideal conditions for the initiation of aeolian processes, including duststorm genesis. Potential dust roses were determined for 2 sites within the lake basin.
Observation from an automatic weather station and anemograph network are used in conjunction with recorded dust deposition rates to identify principle sources of wind blown dust within an alpine lake basin. Meteorological observations made
Identifying regional dust transport pathways : application of kinematic trajectory modelling to a trans-Tasman case
Aeolian dust ; Aeolian features ; Aeolian transport ; Australia ; Duststorm ; Model ; New Zealand
the present study which examined the route taken by air parcels originating in southern Australia during duststorms on 24 and 25 May 1994, indicate that trans-Tasman dust transport trajectories are more diverse than previously thought, and display
A kinematic trajectory model is used to investigate potential pathways of dust transport from Australia to New Zealand. Historically, these have been assumed to follow rather direct west-east trajectories spanning 2 to 3 days. However, results from
Characteristics of dust deposited along a transect between central Iran and the Zagros Mountains
Aeolian dust ; Aeolian features ; Aeolian transport ; Altitude ; Duststorm ; Grain size distribution ; Iran ; Mineralogy ; Soil properties
collected at 12 localities during September 2008 and July 2009 with and without transboundary duststorms, respectively. The findings, together with satellite images and patterns of wind frequency and direction, clearly indicate the major contribution
of a transboundary duststorm, probably originating from iraqi arid land, to atmospheric deposition in the Zagros area and central Iran. If duststorms originating from outside the country continue to occur, not only will they influence the surface soil properties
The aim of this study was to identify the variations in physical, chemical, and mineralogical composition of dust particles deposited along an elevational transect lying between central Iran and the Zagros Mountains in the west. Dust samples were