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Improved retrieval of nitrogen dioxide (NO2) column densities by means of MKIV Brewer spectrophotometers [Discussion paper]
Título : Improved retrieval of nitrogen dioxide (NO2) column densities by means of MKIV Brewer spectrophotometers [Discussion paper]
Autor : Diémoz, Henri; Siani, Anna Maria; Redondas, Alberto; Savastiouk, Volodya; McElroy, C. T.
Palabras clave : Dióxido de nitrógeno; Espectrofotómetros; Nitrogen dioxide; Spectrophotometers
Fecha de publicación : 2014
Editor: European Geosciences Union
Citación : Atmospheric Measurement Techniques Discussions. 2014, 7, p. 7367–7396
Versión del editor: http://dx.doi.org/10.5194/amtd-7-7367-2014
Resumen : A new algorithm to retrieve nitrogen dioxide (NO2) column densities using MKIV ("Mark IV") Brewer spectrophotometers is described. The method includes several improvements, such as a more recent spectroscopic data set, the reduction of measurement noise, interference by other atmospheric species and instrumental settings, and a better determination of the zenith sky air mass factor. The technique was tested during an ad hoc calibration campaign at the high-altitude site of Izaña (Tenerife, Spain) and the results of the direct sun and zenith sky geometries were compared to those obtained by two reference instruments from the Network for the Detection of Atmospheric Composition Change (NDACC): a Fourier Transform Infrared Radiometer (FTIR) and an advanced visible spectrograph (RASAS-II) based on the differential optical absorption spectrometry (DOAS) technique.
URI : http://hdl.handle.net/20.500.11765/6517
ISSN : 1867-8610
Colecciones: Artículos científicos 2010-2014


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