Articles | Volume 9, issue 10
Atmos. Meas. Tech., 9, 5203–5212, 2016
https://doi.org/10.5194/amt-9-5203-2016

Special issue: Ten years of Ozone Monitoring Instrument (OMI) observations...

Atmos. Meas. Tech., 9, 5203–5212, 2016
https://doi.org/10.5194/amt-9-5203-2016

Research article 24 Oct 2016

Research article | 24 Oct 2016

Comparison of OMI NO2 observations and their seasonal and weekly cycles with ground-based measurements in Helsinki

Iolanda Ialongo et al.

Data sets

EOS Aura OMI OMNO2 (Collection 3) Aura Validation Data Center (AVDC) http://avdc.gsfc.nasa.gov/pub/data/satellite/Aura/OMI/V03/L2OVP/OMNO2/aura_omi_l2ovp_omno2_v03_helsinki.1.txt

OMI DOMINO NO2 overpass file TEMIS service http://temis.nl/airpollution/no2col/data/omi/overpass/Helsinki_domino.dat

Surface concentration data AVAA - open research data portal http://avaa.tdata.fi/web/smart/smear/download

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Short summary
We present the comparison between satellite- and ground-based atmospheric NO2 observations in Helsinki (Finland). The results show that, despite some limitations due to cloud contamination and low solar angles, satellite data are able to describe urban air quality features such as the weekly and seasonal cycles. The results support air quality satellite data exploitation at high latitudes and prepare for similar applications for future missions.