نتایج جستجو برای: dust event day

تعداد نتایج: 569237  

2008
Glenn Greed Jim M. Haywood Sean Milton Andreas Keil Sundar Christopher Pawan Gupta Eleanor J. Highwood

[1] An operational dust forecasting model is developed by including the Met Office Hadley Centre climate model dust parameterization scheme, within a Met Office regional numerical weather prediction (NWP) model. The model includes parameterizations for dust uplift, dust transport, and dust deposition in six discrete size bins and provides diagnostics such as the aerosol optical depth. The resul...

Journal: :Nature Astronomy 2021

Mars has lost most of its initial water to space as atomic hydrogen and oxygen. Spacecraft measurements have determined that present-day escape undergoes large variations with season are inconsistent long-standing explanations. The cause is incompletely understood, likely contributions from seasonal changes in atmospheric circulation, dust activity solar extreme ultraviolet input. Although some...

Introduction: Climatic components are the vital factors influencing the dust event. It was believed that changes in climate parameters play a crucial role in the occurrence of dust events. Former studies have shown that temperature, rainfall, and wind speed contribute to poor vegetation, providing requirements of dust events. Long-term dust data indicated that climate has a profound effect on d...

Journal: Desert 2015

One of the world's major mineral dust source regions lies along the border between Iran and Afghanistan. In this studyit is hypothesized that a low-level jet may play in role in generating the intensity of this source region. The presence of alow-level jet east of the Seistan mountains is documented here for the first time. The jet exists mainly from May toSeptember and has a core at 850 mb. Ma...

Journal: :Int. J. Digital Earth 2013
Qunying Huang Chaowei Phil Yang Karl Benedict Songqing Chen Abdelmounaam Rezgui Jibo Xie

The simulations and potential forecasting of dust storms are of significant interest to public health and environment sciences. Dust storms have interannual variabilities and are typical disruptive events. The computing platform for a dust storm forecasting operational system should support a disruptive fashion by scaling up to enable high-resolution forecasting and massive public access when d...

2016
Wilailuk Niyommaneerat Fumiyuki Nakajima Tomohiro Tobino Kazuo Yamamoto

Urban road dust contains a variety of pollutants and might deteriorate the environment quality in the receiving water bodies of urban runoff. Urban road dust may be accumulated in the sediment for the periods of time, thus chronic toxicity should be evaluated. However, toxicity assessment of urban road dust is limited especially in the chronic effect on benthic organisms. This study aimed to as...

Journal: :Journal of environmental monitoring : JEM 2012
Ioannis Basinas Torben Sigsgaard Dick Heederik Hisamitsu Takai Øyvind Omland Nils T Andersen Inge M Wouters Jakob H Bønløkke Hans Kromhout Vivi Schlünssen

Studies on personal dust and endotoxin concentrations among animal farmers have been either small or limited to a few sectors in their investigations. The present study aimed to provide comparable information on the levels and variability of exposure to personal dust and endotoxin in different types of animal farmers. 507 personal inhalable dust samples were collected from 327 farmers employed ...

Journal: :desert 2015
sharon nicholson

one of the world's major mineral dust source regions lies along the border between iran and afghanistan. in this studyit is hypothesized that a low-level jet may play in role in generating the intensity of this source region. the presence of alow-level jet east of the seistan mountains is documented here for the first time. the jet exists mainly from may toseptember and has a core at 850 mb. ma...

Journal: :Chemosphere 2017
Xiaobo Zheng Lin Qiao Adrian Covaci Runxia Sun Huiying Guo Jing Zheng Xiaojun Luo Qilai Xie Bixian Mai

Indoor dust has been widely used to monitor flame retardants (FRs) in indoor environment, but most studies only focused on floor dust. In the present study, FRs were examined in indoor dust from different locations. Dust from air conditioner (AC) filters, beddings, floor, and windows in bedrooms, and dust from AC filters, printer table surface, computer table surface, floor, and windows in offi...

2003
Francis E. Grousset Paul Ginoux Aloys Bory Pierre E. Biscaye

[1] By combining reconstruction of airmass backtrajectories from dust deposition sites in Europe and measurements of the (Nd) isotopic composition of deposited dust particles, potential sources of different Saharan dust events can be identified. The study of ‘‘red dust’’ events collected in France allowed us to identify distinct North African source areas (e.g. Lybia vs. Mauritania). Surprising...

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