搜索结果: 1-15 共查到“大气化学 diurnal”相关记录15条 . 查询时间(0.159 秒)
Diurnal variation of midlatitudinal NO3 column abundance over table mountain facility, California
midlatitudinal NO3 column table mountain facility California
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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. ...
Atmospheric diurnal variations observed with GPS radio occultation soundings
Atmospheric diurnal variations GPS radio occultation soundings
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2010/8/16
The diurnal variation, driven by solar forcing, is a fundamental mode in the Earth's weather and climate system. Radio occultation (RO) measurements from the six COSMIC satellites (Constellation Obser...
Physical and optical properties of aerosols over an urban location in Spain: seasonal and diurnal variability
Physical and optical properties aerosols Spain
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2010/1/18
Measurements of aerosol optical properties and aerosol number size distribution obtained during the period from December 2005 to November 2007 at Granada, an urban site in south-eastern Spain, are ana...
Using ground-based solar and lunar infrared spectroscopy to study the diurnal trend of carbon monoxide in the Mexico City boundary layer
ground-based solar lunar infrared spectroscopy diurnal trend carbon monoxide Mexico City boundary layer
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2009/11/9
Carbon monoxide (CO) is an important pollutant in urban agglomerations. Quantifying the total burden of this pollutant in a megacity is challenging because not only its surface concentration but also ...
Validation of urban NO2 concentrations and their diurnal and seasonal variations observed from the SCIAMACHY and OMI sensors using in situ surface measurements in Israeli cities
urban NO2 concentrations SCIAMACHY OMI sensors
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2009/6/16
We compare a full-year (2006) record of surface air NO2 concentrations measured in Israeli cities to coinciding retrievals of tropospheric NO2 columns from satellite sensors (SCIAMACHY aboard ENVISAT ...
The impact of diurnal variability in sea surface temperature on the central Atlantic air-sea CO2 flux
sea surface temperature central Atlantic air-sea CO2 flux
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2009/3/12
The effect of diurnal variations in sea surface temperature (SST) on the air-sea flux of CO2 over the central Atlantic ocean and Mediterranean Sea (60 S–60 N, 60 W–45 E) is evaluated for 2005–2006. We...
Diurnal and annual variations of meteor rates at the arctic circle
meteor rates arctic circle Diurnal and annual variations
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2009/3/4
Meteors are an important source for (a) the metal atoms of the upper atmosphere metal layers and (b) for condensation nuclei, the existence of which are a prerequisite for the formation of noctilucent...
Observations of the diurnal and seasonal trends in nitrogen oxides in the western Sierra Nevada
diurnal and seasonal trends nitrogen oxides western Sierra Nevada
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2009/1/20
Observations of speciated nitrogen oxides, namely NO2, total peroxy nitrates (ΣPNs), total alkyl nitrates (ΣANs), and HNO3 by thermal dissociation laser induced fluorescence (TD-LIF), and supporting c...
Seasonal and diurnal characteristics of water soluble inorganic compounds in the gas and aerosol phase in the Zurich area
water soluble inorganic compounds gas and aerosol phase Zurich area
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2009/1/8
Gas and aerosol samples were taken using a wet effluent diffusion denuder/aerosol collector (WEDD/AC) coupled to ion chromatography (IC) in the city of Zurich, Switzerland from August to September 200...
The impact of diurnal variations of air traffic on contrail radiative forcing
air traffic contrail radiative forcing
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2008/12/12
We combined high resolution aircraft flight data from the EU Fifth Framework Programme project AERO2k with analysis data from the ECMWF's integrated forecast system to calculate diurnally resolved 3-D...
Distribution, magnitudes, reactivities, ratios and diurnal patterns of volatile organic compounds in the Valley of Mexico during the MCMA 2002 & 2003 field campaigns
volatile organic compounds Valley of Mexico MCMA
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2008/11/28
A wide array of volatile organic compound (VOC) measurements was conducted in the Valley of Mexico during the MCMA-2002 and 2003 field campaigns. Study sites included locations in the urban core, in a...
Hygroscopic properties of ultrafine aerosol particles in the boreal forest: diurnal variation, solubility and the influence of sulfuric acid
ultrafine aerosol particles boreal forest sulfuric acid
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2008/11/27
The hygroscopic growth of aerosol particles present in a boreal forest was measured at a relative humidity of 88%. Simultaneously the gas phase concentration of sulfuric acid, a very hygroscopic compo...
Diurnal temperature range over Europe between 1950 and 2005
diurnal temperature range Europe
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2008/11/25
It has been widely accepted that diurnal temperature range (DTR) decreased on a global scale during the second half of the twentieth century. Here we show however, that the long-term trend of annual D...
Assessment of high (diurnal) to low (seasonal) frequency variations of isoprene emission rates using a neural network approach
variations isoprene emission rates neural network
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2008/11/4
Using a statistical approach based on artificial neural networks, an emission algorithm (ISO-LF) accounting for high to low frequency variations was developed for isoprene emission rates. ISO-LF was ...
NO2 climatology in the northern subtropical region: diurnal, seasonal and interannual variability
NO2 climatology northern subtropical diurnal seasonal
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2008/11/3
Daily NO2 vertical column density (VCD) has been routinely measured by zenith sky spectroscopy at the subtropical station of Izaña (28° N, 16° W) since 1993 in the framework of the Network for ...