搜索结果: 31-45 共查到“知识库 大气化学”相关记录1559条 . 查询时间(5.325 秒)
Results from a new linear O3 scheme with embedded heterogeneous chemistry compared with the parent full-chemistry 3-D CTM
a new linear O3 scheme embedded heterogeneous chemistry the parent full-chemistry 3-D CTM
<
2011/2/25
A detailed full-chemistry 3-D chemistry and transport model (CTM) is used to evaluate the current stratospheric O3 parameterisation in the European Centre for Medium-Range Weather Forecasts (ECMWF) mo...
A sea-state based source function for size- and composition-resolved marine aerosol production
source function size- and composition-resolved marine aerosol production
<
2011/2/25
A parameterization for the size- and composition-resolved production fluxes of nascent marine aerosol was developed from prior experimental observations and extrapolated to ambient conditions based on...
The ice nucleation ability of one of the most abundant types of fungal spores found in the atmosphere
the most abundant types fungal spores the atmosphere
<
2011/2/25
Recent atmospheric measurements show that biological particles are a potentially important class of ice nuclei. Types of biological particles that may be good ice nuclei include bacteria, pollen and f...
Solar irradiance at the earth's surface: long-term behavior observed at the South Pole
the earth's surface long-term behavior the South Pole
<
2011/2/25
This research examines a 17-year database of UV-A (320–400 nm) and visible (400–600 nm) solar irradiance obtained by a scanning spectroradiometer located at the South Pole. The goal is to define the v...
Relating hygroscopicity and composition of organic aerosol particulate matter
HTDMA SOA organic precursors a smog chamber
<
2011/2/25
A hygroscopicity tandem differential mobility analyzer (HTDMA) was used to measure the water uptake (hygroscopicity) of secondary organic aerosol (SOA) formed during the chemical and photochemical oxi...
A global survey of aerosol-liquid water cloud overlap based on four years of CALIPSO-CALIOP data
aerosol-liquid water cloud CALIPSO-CALIOP data
<
2011/2/25
Simulating the radiative impacts of aerosols located above liquid water clouds presents a significant challenge. In particular, absorbing aerosols, such as smoke, may have significant impact in such s...
Anthropogenic sulfur dioxide emissions: 1850–2005
Sulfur aerosols anthropogenic global regional sulfur dioxide
<
2011/2/25
Sulfur aerosols impact human health, ecosystems, agriculture, and global and regional climate. A new annual estimate of anthropogenic global and regional sulfur dioxide emissions has been constructed ...
Overview of the synoptic and pollution situation over Europe during the EUCAARI-LONGREX field campaign
the synoptic and pollution Europe the EUCAARI-LONGREX field campaign
<
2011/2/25
In May 2008 the EUCAARI-LONGREX aircraft field campaign was conducted within the EUCAARI intensive observational period. The campaign aimed at studying the distribution and evolution of air mass prope...
Evidence for a significant proportion of Secondary Organic Aerosol from isoprene above a maritime tropical forest
a significant proportion Secondary Organic Aerosol isoprene a maritime tropical forest
<
2011/2/25
Isoprene is the most abundant non-methane biogenic volatile organic compound (BVOC), but the processes governing secondary organic aerosol (SOA) formation from isoprene oxidation are only beginning to...
Modelling multi-phase halogen chemistry in the coastal marine boundary layer: investigation of the relative importance of local chemistry vs. long-range transport
multi-phase halogen chemistry the coastal marine boundary layer local chemistry long-range transport
<
2011/2/25
Measurements of significant concentrations of IO, I2 and BrO in a semi-polluted coast environment at Roscoff, in North-West France, have been made as part of the Reactive Halogens in the Marine Bounda...
Diurnal variation of midlatitudinal NO3 column abundance over table mountain facility, California
midlatitudinal NO3 column table mountain facility California
<
2011/2/25
The column abundance of NO3 was measured over Table Mountain Facility, CA (34.4° N, 117.7° W) from May 2003 through September 2004, using lunar occultation near full moon with a grating spectrometer. ...
Water content of aged aerosol
Water aged aerosol
<
2011/2/25
The composition and physical properties of aged atmospheric aerosol were characterized at a remote sampling site on the northern coast of Crete, Greece during the Finokalia Aerosol Measurement Experim...
Modeling secondary organic aerosol formation from isoprene oxidation under dry and humid conditions
secondary organic aerosol isoprene oxidation dry and humid conditions
<
2011/2/24
A new model for the formation of secondary organic aerosol (SOA) from isoprene was developed. This model uses surrogate molecular species (hydroxy-hydroperoxides, tetrols, methylglyceric acid, organic...
An integrated modeling study on the effects of mineral dust and sea salt particles on clouds and precipitation
mineral dust sea salt particles clouds
<
2011/2/24
This report addresses the effects of pollution on the development of precipitation in clean ("pristine") and polluted ("hazy") environments in the Eastern Mediterranean by using the Integrated Communi...
Simultaneous HONO measurements in and above a forest canopy: influence of turbulent exchange on mixing ratio differences
HONO measurements a forest canopy turbulent exchange ratio differences
<
2011/2/24
We have combined chemical and micrometeorological measurements to investigate the formation and distribution of HONO throughout a forest canopy. HONO was measured simultaneously at two heights, close ...