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Atmospheric scientists study fires to resolve ice question in climate models（图）
Atmospheric scientists fires resolve ice question climate models
2020/9/4
When fossil fuel or biomass burns, soot -- also known as black carbon -- fills the air. Black carbon is an important short-term climate driver because it absorbs solar energy and can affect the format...
OU-Led Study Links Deep-Time Dust with Major Impacts on Carbon Cycling
OU-Led Deep-Time Dust Carbon Cycling
2015/12/7
A University of Oklahoma-led study links vast amounts of iron-rich dust deposits from the late Paleozoic period of 300 million years ago with implications for major ecosystem fertilization and a massi...
Arctic snow not darkening due to soot,dust,Dartmouth-led study finds
Arctic snow soot dust Dartmouth-led
2015/11/12
For millennia, Greenland's ice sheet reflected sunlight back into space, but satellite measurements in recent years suggest the bright surface is darkening, causing solar heat to be absorbed and surfa...
New HOLODEC Study in Science on Using Holography to Better Understand Clouds（图）
HOLODEC Study in Science Clouds
2015/10/13
Watching the clouds go by, swirls of white puff up and melt away. The changes mirror mixing within the clouds as drier air mingles with water-saturated air. New research led by Michigan Technological ...
Impact Assessment of Ambient Air Quality by Cement Industry: A Case Study in Jordan
Atmosphere Cement Emission Environment Modeling Pollution Impact assessment
2016/3/28
Cement industry is flourishing in the Middle East and North African countries due to the rapid population growth, the
change in living style, and the availability of raw material in the region. Unles...
A sensitivity study on the effects of particle chemistry, asphericity and size on the mass extinction efficiency of mineral dust in the earth's atmosphere: from the near to thermal IR
particle chemistry asphericity size mineral dust the earth's atmosphere thermal IR
2011/2/25
To determine a plausible range of mass extinction efficiencies (MEE) of terrestrial atmospheric dust from the near to thermal IR, sensitivity analyses are performed over an extended range of dust micr...
Effects of absorbing aerosols in cloudy skies: a satellite study over the Atlantic Ocean
aerosols cloudy skies a satellite study the Atlantic Ocean
2011/2/25
We present a method for deriving the radiative effects of absorbing aerosols in cloudy scenes from satellite retrievals only. We use data of 2005–2007 from various passive sensors aboard satellites of...
Transport of dust particles from the Bodélé region to the monsoon layer – AMMA case study of the 9–14 June 2006 period
dust particles the Bodélé region the monsoon layer the 9–14 June 2006 period
2011/1/20
Aerosol properties were measured during an airborne campaign experiment that took place in June 2006 in West Africa within the framework of the African Monsoon Multidisciplinary Analyses (AMMA). The g...
Potential impact of iodinated replacement compounds CF3I and CH3I on atmospheric ozone: a three-dimensional modeling study
iodinated replacement compounds CF3I and CH3I atmospheric ozone
2010/11/3
The concept of Ozone Depletion Potentials (ODPs) is extensively used in policy considerations related to concerns about the effects of various halocarbons and other gases on stratospheric ozone. Many ...
Study of contrail microphysics in the vortex phase with a Lagrangian particle tracking model
contrail microphysics a Lagrangian particle tracking model
2010/11/3
Crystal sublimation/loss is a dominant feature of the contrail evolution during the vortex phase and has a substantial impact on the later contrail-to-cirrus transition. Previous studies showed that t...
Stratospheric water vapour budget and convection overshooting the tropopause: modelling study from SCOUT-AMMA
Stratospheric water vapour the tropopause SCOUT-AMMA
2010/9/14
The aim of this paper is to study the impacts of overshooting convection at a local scale on the water distribution in the tropical UTLS. Overshooting convection is assumed to be one of the processes ...
Transport of North African dust from the Bodélé depression to the Amazon Basin: a case study
North African dust the Bodélé depression the Amazon Basin
2010/8/25
This case study follows the dust events of 11–16 and 18–27 February 2008, from the emission in the Bodélé over West Africa (most likely with contribution from other dust sources in the region) the cro...
A global modeling study on carbonaceous aerosol microphysical characteristics and radiative effects
carbonaceous aerosol microphysical characteristics radiative effects
2010/8/16
Our best estimate for net direct and indirect aerosol radiative flux change between 1750 and 2000 is −0.56 W/m2. However, the direct and indirect aerosol effects are quite sensitive to the black...
Long-range pollution transport during the MILAGRO-2006 campaign: a case study of a major Mexico City outflow event using free-floating altitude-controlled balloons
Long-range pollution transport the MILAGRO-2006 campaign a major Mexico City outflow event free-floating altitude-controlled balloons
2010/8/16
One of the major objectives of the Megacities Initiative: Local And Global Research Observations (MILAGRO-2006) campaign was to investigate the long-range transport of polluted Mexico City Metropolita...
Impacts of transported background ozone on California air quality during the ARCTAS-CARB period – a multi-scale modeling study
transported background ozone California air quality the ARCTAS-CARB period
2010/8/16
Multi-scale tracer and full-chemistry simulations with the STEM atmospheric chemistry model are used to analyze the effects of transported background ozone (O3) from the eastern Pacific on California ...