Articles | Volume 9, issue 9
Atmos. Meas. Tech., 9, 4471–4485, 2016
https://doi.org/10.5194/amt-9-4471-2016
Atmos. Meas. Tech., 9, 4471–4485, 2016
https://doi.org/10.5194/amt-9-4471-2016

Research article 09 Sep 2016

Research article | 09 Sep 2016

Intercomparison of stratospheric nitrogen dioxide columns retrieved from ground-based DOAS and FTIR and satellite DOAS instruments over the subtropical Izana station

Cristina Robles-Gonzalez et al.

Data sets

EOS Aura OMI OMNO2 (Collection 3) Aura Validation Center http://avdc.gsfc.nasa.gov/index.php?site= 666843934&id=13

FTIR Izaña Total Clolumn T. Blumenstock ftp://ftp. cpc.ncep.noaa.gov/ndacc/station/izana/ames/ftir/

UV/VIS Izaña Total Column M. Gil ftp://ftp.cpc. ncep.noaa.gov/ndacc/station/izana/ames/uvvis/

Stratospheric NO2 data A. Richter http://www.iup. uni-bremen.de/doas/scia_no2_data_acve.htm

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Short summary
The comparison of observations performed by different techniques and satellite instruments is important. An intercomparison of the stratospheric NO2 derived from ground-based and satellite instruments has been carried out over the Izaña subtropical site. The importance of the use of the effective solar zenith angle when comparing noon measurements with twilight measurements of photochemically active species is highlighted. All instruments show positive trends in NO2 stratospheric column.