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A long-feared scenario in which global warming causes Arctic permafrost to melt and release enough methane—a potent greenhouse gas--to accelerate warming and cause catastrophe probably won't happen.
Revision of the convective transport module CVTRANS 2.4 in the EMAC atmospheric chemistry–climate model
EMAC atmospheric chemistry–climate model convective transport
2015/8/11
The convective transport module, CVTRANS,
of the ECHAM/MESSy Atmospheric Chemistry (EMAC)
model has been revised to better represent the physical flows
and incorporate recent findings o...
Impact of parametric uncertainties on the present-day climate and on the anthropogenic aerosol effect
parametric uncertainties the present-day climate the anthropogenic aerosol effect
2010/12/20
Clouds constitute a large uncertainty in global climate modeling and climate change projections as many clouds are smaller than the size of a model grid box. Some processes, such as the rates of rain ...
Sunphotometry of the 2006–2007 aerosol optical/radiative properties at the Himalayan Nepal Climate Observatory-Pyramid (5079 m a.s.l.)
the 2006–2007 aerosol optical radiative properties the Himalayan Nepal Climate Observatory-Pyramid (5079 m a.s.l.)
2010/11/30
In spite of being located at the heart of the highest mountain range in the world, the Himalayan Nepal Climate Observatory (5079 m a.s.l.) at the Ev-K2-CNR Pyramid is shown to be affected by the advec...
Climate impact on airborne particulate matter concentrations in California using seven year analysis periods
Climate impact airborne particulate matter California seven year analysis periods
2010/11/30
The effect of global climate change on the annual average concentration of fine particulate matter (PM2.5) in California was studied using a climate-air quality modeling system composed of global thro...
Observed 20th century desert dust variability: impact on climate and biogeochemistry
20th century desert dust climate and biogeochemistry
2010/11/30
Desert dust perturbs climate by directly and indirectly interacting with incoming solar and outgoing long wave radiation, thereby changing precipitation and temperature, in addition to modifying ocean...
Will climate change increase ozone depletion from low-energy-electron precipitation?
climate change ozone depletion low-energy-electron precipitation
2010/10/21
We investigate the effects of a strengthened stratospheric/mesospheric residual circulation on the transport of nitric oxide (NO) produced by energetic particle precipitation. During periods of high g...
Aerosol exposure versus aerosol cooling of climate: what is the optimal emission reduction strategy for human health?
Aerosol exposure aerosol climate the optimal emission reduction strategy human health
2010/10/11
Particles, climate change, and health have thought-provoking interactions. Air pollution is one of the largest environmental problems concerning human health. On the other hand, aerosol particles can ...
Climate effects of seasonally varying Biomass Burning emitted Carbonaceous Aerosols (BBCA)
Climate Biomass Burning emitted Carbonaceous Aerosols
2010/9/21
The climate impact of the seasonality of Biomass Burning emitted Carbonaceous Aerosols (BBCA) is studied using an aerosol-climate model coupled with a slab ocean model in a set of 60-year long simulat...
Evaluation of simulated aerosol properties with the aerosol-climate model ECHAM5-HAM using observations from the IMPACT field campaign
simulated aerosol properties the aerosol-climate model ECHAM5-HAM the IMPACT field campaign
2010/8/25
In May 2008, the measurement campaign IMPACT for observation of atmospheric aerosol and cloud properties was conducted in Cabauw, The Netherlands. With a nudged version of the coupled aerosol-climate ...
Options to accelerate ozone recovery: ozone and climate benefits
ozone recovery ozone and climate benefits
2010/8/25
Hypothetical reductions in future emissions of ozone-depleting substances (ODSs) and N2O are evaluated in terms of effects on equivalent effective stratospheric chlorine (EESC), globally-averaged tota...
Effects of climate-induced changes in isoprene emissions after the eruption of Mount Pinatubo
climate-induced changes isoprene emissions the eruption of Mount Pinatubo
2010/8/16
In the 1990s the rates of increase of greenhouse gas concentrations, most notably of methane, were observed to change, for reasons that have yet to be fully determined. This period included the erupti...
An investigation of the sub-grid variability of trace gases and aerosols for global climate modeling
the sub-grid variability trace gases and aerosols global climate modeling
2010/8/16
One fundamental property and limitation of grid based models is their inability to identify spatial details smaller than the grid cell size. While decades of work have gone into developing sub-grid tr...
Tropospheric ozone variations at the Nepal Climate Observatory-Pyramid (Himalayas, 5079 m a.s.l.) and influence of deep stratospheric intrusion events
Tropospheric ozone the Nepal Climate Observatory-Pyramid deep stratospheric intrusion events
2010/8/16
The paper presents the first 2 years of continuous surface ozone (O3) observations and systematic assessment of the influence of stratospheric intrusions (SI) at the Nepal Climate Observatory at Pyram...
Comparison of a global-climate model to a cloud-system resolving model for the long-term response of thin stratocumulus clouds to preindustrial and present-day aerosol conditions
a global-climate model a cloud-system resolving model thin stratocumulus clouds present-day aerosol conditions
2010/8/16
The response of a case of thin, warm marine-boundary-layer (MBL) clouds to preindustrial (PI) and present-day (PD) conditions is simulated by a cloud-system resolving model (CSRM). Here, both the aero...