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Comparison of UV irradiances from Aura/Ozone Monitoring Instrument (OMI) with Brewer measurements at El Arenosillo (Spain) – Part 2: Analysis of site aerosol influence
Aura/Ozone Monitoring Instrument Brewer measurements El Arenosillo
2010/12/28
Several validation studies have shown a notable overestimation of the clear sky ultraviolet (UV) irradiance at the Earth's surface derived from satellite sensors such as the Total Ozone Mapping Spectr...
Comparison of UV irradiances from Aura/Ozone Monitoring Instrument (OMI) with Brewer measurements at El Arenosillo (Spain) – Part 1: Analysis of parameter influence
UV irradiances Aura/Ozone Monitoring Instrument Brewer measurements El Arenosillo parameter influence
2010/8/16
The main objective of this study is to compare the erythemal UV irradiance (UVER) and spectral UV irradiances (at 305, 310 and 324 nm) from the Ozone Monitoring Instrument (OMI) onboard NASA EOS/Aura ...
Aerosol Single Scattering Albedo retrieval in the UV range: an application to OMI satellite validation
Aerosol Single Scattering Albedo retrieval UV range OMI satellite validation
2010/2/1
The aerosol Single Scattering Albedo (SSA) and Absorbing Aerosol Optical Depth (AAOD) at 320.1 nm are derived at Rome site by the comparison between Brewer and modelled spectra. The UVSPEC radiative t...
Optical characteristics of biomass burning aerosols over Southeastern Europe determined from UV-Raman lidar measurements
Optical characteristics biomass burning aerosols Southeastern Europe UV-Raman lidar measurements
2009/5/7
The influence of smoke on the aerosol loading in the free troposphere over Thessaloniki, Greece is examined in this paper. Ten cases during 2001–2005 were identified when very high aerosol optical dep...
Clear sky UV simulations for the 21st century based on ozone and temperature projections from Chemistry-Climate Models
Clear sky UV 21st century ozone and temperature projections Chemistry-Climate Models
2009/3/13
We have estimated changes in surface solar ultraviolet (UV) radiation under cloud free conditions in the 21st century based on simulations of 11 coupled Chemistry-Climate Models (CCMs). The total ozon...
The UV-visible absorption cross-sections of IONO2
UV-visible absorption cross-sections IONO2
2009/3/12
The UV-visible absorption spectrum of gaseous IONO2 has been measured over the wavelength range 245--415 nm using the technique of laser photolysis with time-resolved UV-visible absorption spectroscop...
Evaluation of SHADOZ sondes, HALOE and SAGE II ozone profiles at the tropics from SAOZ UV-Vis remote measurements onboard long duration balloons
SHADOZ sondes HALOE SAGE II ozone profiles SAOZ UV-Vis
2009/2/10
Ozone profiles from 10 to 26km have been obtained at almost constant latitude (20 ± 5° S) in the tropics using SAOZ UV-vis spectrometers flown onboard long duration balloons in 2001 and 2003. The prec...
Towards closure between measured and modelled UV under clear skies at four diverse sites
UV UVB
2008/12/11
The purpose of this work is determine the extent of closure between measurements and models of UV irradiances at diverse sites using state of the art instruments, models, and the best available data a...
Effective UV surface albedo of seasonally snow-covered lands
UV albedo seasonally snow-covered lands
2008/12/10
At ultraviolet wavelengths the albedo of most natural surfaces is small with the striking exception of snow and ice. Therefore, snow cover is a major challenge for various applications based on radiat...
Nine years of UV aerosol optical depth measurements at Thessaloniki, Greece
UV aerosol optical depth Thessaloniki Greece
2008/12/8
Spectral measurements of the aerosol optical depth (AOD) and the Ångström coefficient were conducted at Thessaloniki, Greece (40.5° N, 22.9° E) between January 1997 and December 2005 with a...
Lightning-produced NO2 observed by two ground-based UV-visible spectrometers at Vanscoy, Saskatchewan in August 2004
Lightning-produced NO2 UV-visible spectrometer Vanscoy Saskatchewan
2008/12/4
Ground-based measurements of ozone and NO2 differential slant columns by the SAOZ (Système d'Analyse par Observations Zénithales) and UT-GBS (University of Toronto Ground-Based Spectrometer) instrume...
Near-UV photolysis cross sections of CH3OOH and HOCH2OOH determined via action spectroscopy
Near-UV photolysis CH3OOH HOCH2OOH
2008/12/1
Knowledge of molecular photolysis cross sections is important for determining atmospheric lifetimes and fates of many species. A method and laser apparatus for measurement of these cross sections in t...
Modelling constraints on the emission inventory and on vertical dispersion for CO and SO2 in the Mexico City Metropolitan Area using Solar FTIR and zenith sky UV spectroscopy
CO SO2 Mexico City Metropolitan Area Solar FTIR UV spectroscopy
2008/12/1
Emissions of air pollutants in and around urban areas lead to negative health impacts on the population. To estimate these impacts, it is important to know the sources and transport mechanisms of the ...
The relevance of snow for climate studies is based on its physical properties, such as high surface reflectivity. Surface ultraviolet (UV) albedo is an essential parameter for various applications bas...
Effects of urban pollution on UV spectral irradiances
urban pollution UV spectral irradiances
2008/11/20
Spectral measurements of UV irradiances at Tokyo are compared with corresponding measurements at a pristine site (Lauder New Zealand) to identify the causes of the reductions in urban UV irradiances, ...