搜索结果: 1-15 共查到“地球科学总论 particles”相关记录15条 . 查询时间(0.41 秒)
Meteorological and trace gas factors affecting the number concentration of atmospheric Aitken (Dp = 50 nm) particles in the continental boundary layer: parameterization using a multivariate mixed effects model
Meteorological number concentration atmospheric Aitken particles continental boundary layer multivariate mixed effects model
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2014/12/9
Measurements of aerosol size distribution and different gas and meteorological parameters, made in three polluted sites in Central and Southern Europe: Po Valley, Italy, Melpitz and Hohenpeissenberg i...
MADE-in: a new aerosol microphysics submodel for global simulation of insoluble particles and their mixing state
Black carbon Mineral dust Aerosol The atmosphere Dust particles Solidification grain Liquid coating
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2014/12/9
Black carbon (BC) and mineral dust are among the most abundant insoluble aerosol components in the atmosphere. When released, most BC and dust particles are externally mixed with other aerosol species...
Accumulation of Gel Particles in the Sea-Surface Microlayer during an Experimental Study with the Diatom Thalassiosira weissflogii
Sea Surface Microlayer Extracellular Polymeric Substances
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2013/3/11
Since the early 80’s, the sea-surface microlayer (SML) has been hypothesized as being a gelatinous film. Recent studies have confirmed this characteristic, which confers properties that mediate mass a...
Flux and composition of settling particles across the continental margin of the Gulf of Lion: the role of dense shelf water cascading
Flux and composition particles the continental margin dense shelf water cascading
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2010/1/21
Settling particles were collected using sediment traps deployed along three transects in the Lacaze-Duthiers and Cap de Creus canyons and the adjacent southern open slope from October 2005 to October ...
Effects of ultraviolet B radiation on (not so) transparent exopolymer particles
ultraviolet B radiation transparent exopolymer particles
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2010/1/21
Transparent exopolymer particles (TEP) are the most ubiquitous gel particles in the ocean and form abiotically from dissolved precursors. Although these particles can accumulate at the ocean surface, ...
An experimental study of particle-driven gravity currents on steep slopes with entrainment of particles
particle-driven gravity currents steep slopes entrainment of particles
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2009/12/9
Results of laboratory experiments are presented in which a finite suspension of sawdust particles was released instantaneously into a rectangular channel immersed in a water tank. Two kinds of gravity...
Development of an H-TDMA for long-term unattended measurement of the hygroscopic properties of atmospheric aerosol particles
H-TDMA long-term unattended measurement hygroscopic properties atmospheric aerosol particles
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2010/2/8
A new hygroscopic tandem differential mobility analyzer (H-TDMA) has been constructed at Lund University within the frameworks of the EU FP6 Infrastructure Project EUSAAR (http://www.eusaar.org/). The...
An experimental technique for the direct measurement of N2O5 reactivity on ambient particles
experimental technique direct measurement N2O5 reactivity ambient particles
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2010/2/8
An experimental approach for the direct measurement of trace gas reactivity on ambient aerosol particles has been developed. The method utilizes a newly designed entrained aerosol flow reactor coupled...
Significant contribution of large particles to optical backscattering in the open ocean
Significant contribution large particles optical backscattering open ocean
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2010/1/20
The light scattering properties of oceanic particles have been suggested as an alternative index of phytoplankton biomass than chlorophyll-a concentration (chl-a), with the benefit of being less sensi...
Microbiology and atmospheric processes:biological,physical and chemical characterization of aerosol particles
Microbiology atmospheric processes chemical characterization aerosol particles
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2010/1/19
The interest in bioaerosols has traditionally been linked to health hazards for humans, animals and plants. However, several components of bioaerosols exhibit physical properties of great significance...
Sinking rates and ballast composition of particles in the Atlantic Ocean:implications for the organic carbon fluxes to the deep ocean
Sinking rates ballast composition Atlantic Ocean organic carbon fluxes deep ocean
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2010/1/19
The flux of materials to the deep sea is dominated by larger, organic-rich particles with sinking rates varying between a few meters and several hundred meters per day. Mineral ballast may regulate th...
Volume distribution for particles between 3.5 to 2000 μm in the upper 200 m region of the South Pacific Gyre
Volume distribution particles 3.5 to 2000 μm South Pacific Gyre
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2010/1/15
The French JGOFS BIOSOPE cruise crossed the South Pacific Gyre (SPG) on a transect between the Marquesas Islands and the Chilean coast on a 7500 km transect (8° S–34° S and 8° W–72° W). The number and...
Characterization of primary biogenic aerosol particles in urban,rural,and high-alpine air by DNA sequence and restriction fragment analysis of ribosomal RNA genes
primary biogenic aerosol particles DNA sequence restriction fragment analysis
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2010/1/15
This study explores the applicability of DNA analyses for the characterization of primary biogenic aerosol (PBA) particles in the atmosphere. Samples of fine particulate matter (PM2.5) and total suspe...
Microbiology and atmospheric processes:the role of biological particles in cloud physics
Microbiology and atmospheric processes biological particles cloud physics
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2010/1/15
As part of a series of papers on the sources, distribution and potential impact of biological particles in the atmosphere, this paper introduces and summarizes the potential role of biological particl...
Solubilization of particles in sediment traps:revising the stoichiometry of mixed layer export
Solubilization particles sediment traps stoichiometry mixed layer export
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2010/1/12
Sinking particles, once caught in sediment trap jars, release dissolved elements into the surrounding medium through leaching from their pore fluids, chemical dissolution and the activity of free exoe...