搜索结果: 1-14 共查到“大气科学 irradiance”相关记录14条 . 查询时间(0.052 秒)
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...
Spatial and temporal UV irradiance and aerosol variability within the area of an OMI satellite pixel
UV irradiance OMI satellite pixel aerosol variability
2009/7/22
Results of an experimental campaign that took place in the greater Thessaloniki area were used to investigate temporal and spatial UV variability within an OMI satellite pixel. UV irradiance and aeros...
The effect of the solar rotational irradiance variation on the middle and upper atmosphere calculated by a three-dimensional chemistry-climate model
solar rotational irradiance variation atmosphere three-dimensional chemistry-climate model
2009/3/12
This paper analyzes the effects of the solar rotational (27-day) irradiance variations on the chemical composition and temperature of the stratosphere, mesosphere and lower thermosphere as simulated b...
Ozone Monitoring Instrument spectral UV irradiance products: comparison with ground based measurements at an urban environment
Ozone Monitoring Instrument spectral UV irradiance products urban environment
2009/3/12
We have compared spectral ultraviolet overpass irradiances from the Ozone Monitoring Instruments (OMI) against ground-based Brewer measurements at Thessaloniki, Greece from September 2004 to December ...
Improved sky imaging for studies of enhanced UV irradiance
sky imaging enhanced UV irradiance
2009/3/10
A recent World Meteorological Organisation report discussed the importance of continued study of the effect of clouds on the solar UV radiation reaching the earth's surface. The report mentions that t...
Actinic flux and O1D photolysis frequencies retrieved from spectral measurements of irradiance at Thessaloniki，Greece
Actinic flux O1D photolysis frequencies irradiance Thessaloniki Greece
2009/3/9
The results of two methods retrieving actinic flux and ozone photolysis frequencies (JO1D), from measurements of irradiance with a Brewer MKIII spectroradiometer are investigated in this paper. The fi...
The UV-A and visible solar irradiance spectrum: inter-comparison of absolutely calibrated, spectrally medium resolution solar irradiance spectra from balloon- and satellite-borne measurements
UV-A and visible solar irradiance spectrum spectrally medium resolution solar irradiance spectra
2009/2/12
Within the framework of the ENVISAT/-SCIAMACHY satellite validation, solar irradiance spectra are absolutely measured at moderate resolution in the UV/visible spectral range (in the UV from 316.7-418...
NO2 and HCHO photolysis frequencies from irradiance measurements in Thessaloniki, Greece
NO2 HCHO photolysis frequencies Thessaloniki
2009/2/11
An empirical approach for the retrieval of nitrogen dioxide (NO2) and formaldehyde (HCHO) photolysis frequencies from measurements of global irradiance is presented in this work. Four months of synchr...
Column ozone and aerosol optical properties retrieved from direct solar irradiance easurements during SOLVE II
Column ozone aerosol optical properties direct solar irradiance easurements SOLVE II
2009/2/7
Direct observation of the Sun at large solar zenith angles during the second SAGE III Ozone Loss and Validation Experiment (SOLVE II)/Validation of International Satellites and study of Ozone Loss (VI...
Attenuation of global ultraviolet and visible irradiance over Greece during the total solar eclipse of 29 March 2006
global ultraviolet visible irradiance Greece total solar eclipse
2008/12/26
The variability of ultraviolet and photosynthetically active radiation (PAR) during the total solar eclipse of 29 March 2006 was examined in this study. The measurements from NILU-UV multichannel radi...
Measurements of UV irradiance within the area of one satellite pixel
UV irradiance satellite pixel
2008/11/20
A measurement campaign was performed in the region of Vienna and its surroundings from May to July 2007. Within the scope of this campaign erythemal UV was measured at six ground stations within a rad...
Comparison of UV irradiance measurements at Summit, Greenland; Barrow, Alaska; and South Pole, Antarctica
UV irradiance measurement Greenland Barrow Alaska South Pole Antarctica
2008/11/17
An SUV-150B spectroradiometer for measuring solar ultraviolet (UV) irradiance was installed at Summit, Greenland, in August 2004. Here we compare the initial data from this new location with similar m...
Comparison of OMI ozone and UV irradiance data with ground-based measurements at two French sites
OMI ozone UV irradiance data French
2008/11/14
Ozone Monitoring Instrument (OMI), launched in July 2004, is dedicated to the monitoring of the Earth's ozone, air quality and climate. OMI is the successor of the Total Ozone Mapping Spectrometer (TO...
Reconstruction of the solar spectral UV irradiance for nowcasting of the middle atmosphere state on the basis of LYRA measurements
solar spectral UV middle atmosphere state LYRA
2008/11/10
The LYRA instrument onboard ESA PROBA2 satellite will provide 6-hourly solar irradiance at the Lyman-alpha (121.6 nm) and the Herzberg continuum (~200–220 nm wavelength range). Because the nowcasting ...