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

Robles-Gonzalez, Cristina; Navarro-Comas, Mónica; Puentedura, Olga; Schneider, Matthias; Hase, Frank; Garcia, Omaira; Blumenstock, Thomas; Gil-Ojeda, Manuel

doi:https://doi.org/10.5194/amt-9-4471-2016

Articles | Volume 9, issue 9

https://doi.org/10.5194/amt-9-4471-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/amt-9-4471-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 9, issue 9

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, Mónica Navarro-Comas, Olga Puentedura, Matthias Schneider, Frank Hase, Omaira Garcia, Thomas Blumenstock, and Manuel Gil-Ojeda

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

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.