Ten years of OMI measurementsat Finnish Meteorological Institute

Johanna Tamminen, Antti Arola, Seppo Hassinen, Simo Tukiainen, Janne Hakkarainen, Jari Hovila, Niilo Kalakoski, Marko Laine, Anu Määttä, Jukka Kujanpää, Viktoria Sofieva, Iolanda Ialongo, Osmo Aulamo, Timo Pirttijärvi, Timo Ryyppö, Rigel Kivi, Anders Lindfors, Tero Mielonen

With special thanks to Gilbert Leppelemeir and Anssi Mälkki

Finnish Meteorological Institute

OMI Science Team Meeting De Bilt, the Netherlands, March 11-13, 2014

OMI - a success story in Finland• First remote sensing instrument where Finland had a

significant role in building the instrument:• Technology project

• OMI heritage and experience has been used in VTT’s new developments in hyperspectral imagers for UAVs and nano-satellites.

• For Partria experience and reference from OMI opened doors for developing similar Detector Electronic Units for ESA missions.

• For Space Systems Finland OMI built experience on developing reliable ground processing systems applicable also in other fields.

• Satellite Operations:• Beginning of satellite data reception

activities in Finland • Sodankylä Very Fast Delivery

service• First operational satellite product :

Surface UV radiation, important for health, ecosystems, climate and air quality

• Science Project:

OMI ST 2014

OMI - a success story in Finland (cont.)

UV radiation in Antarctic, Nov 9-10

OMI total ozone – monthly mean in Arctic

April

March

February

Figure I. Ialongo, FMI

OMI and TOMS ozone and UV time series data used to study the link between the total ozone in spring and summer UV in Northern Hemisphere high and mid-latitudes• Inter-annual variability in springtime ozone abundance explains up to 20–40% of the summer UV variability

• Arctic ozone depletion 2011 increased the March–August cumulative erythemal clear-sky UV dose in the Northern Hemisphere extratropics by 3–4% compared to the climatology

Reference: Karpechko, A. Yu., et al. (2013), The link between springtime total ozone and summer UV radiation in Northern Hemisphere extratropics, J. Geophys. Res. Atmos., 118, 8649–8661, doi:10.1002/jgrd.50601.

Correlation functions between the TOMS/OMI March extratropical (north of 35°N) total ozone and monthly mean total ozone and noontime UVI in polar latitudes (north of 60°N) and mid-latitudes (35–60°N) from March to December. (Absolute values shown for red lines.)

Aura Direct Broadcast data reception in Sodankylä

OMI ST 2014 6Distribution in the webDirect Broadcast receiver Observations

• High-latitude site optimal for data reception of Polar satellites

• Coverage: most of Europe

omivfd.fmi.fiOMI real time products

• Daily measurements of

• Ozone

• UV-radiation

• SO2

• Aerosols

• Available within 15-20 min after satellite overpass.

• Coverage: Northern Europe

Grimsvötn volcanic eruption May 21st 2011

• Fast availability of data important for forecasts to support aviation

• OMI VFD used to follow the transport of the ash and to constrain the dispersion forecasts.

• The eruption was strongest on 22 May and on 25th it arrived to Southern Finland

• Increased PM10 values clear on May 25th

• Concentration of smaller particles not increased

OMI ash (AAI) during four days

May 22. May 23.

May 24. May 25.

Particulate matter in Helsinki May 22-28, 2011

June 2013 – Smoke plume from ColoradoThe smoke plume originating from the wildfires inColorado reached Europe in 25th June 2013

Sulfur dioxide from metal smelters in Siberia

OMI SO2 on May 14th, 2012

Averaged SO2: Jun-Aug, 2005-07

• Improve consistency of various instruments and algorithms:

• Ozone measurements during high column

• Challenging conditions: low sun periods

• SAUNA 1: March-April 2006• SAUNA 2: February-April 2007• Ground based instruments: ozone LIDAR,

6 Brewers, 2 Dobsons, 4 DOAS, 96 ozonesondes, dual sondes, CFH

Sodankylä satellite validation site at high latitudes: International SAUNA-1 and SAUNA-2 campaigns

Global NO2 as seen by OMI

OMI ST 2014 11Figure from TEMIS service (www.temis.nl)

Pori port and city center

Detection of emission hotspot in Northern Europe

OMI NO2 (summer 2005 - 2011)

Figure I. Ialongo, FMI

Pori port and city centerOverlap with STEAM ship emissions

OMI NO2 (summer 2005 - 2011)

Detection of emission hotspot in Northern Europe

Work ongoing to validate OMI NO2 at high latitudes

Figure I. Ialongo, FMI

P2 SO2 UVAOD2

Proxy P2, assuming SO2 constant, for CN (3-25 nm)

OMI UV data used for estimating seasonal variation of spatial distribution of new particle formation

• One of the key questions in climate research is the role of aerosols

• Nucleation mode aerosols are below the detection limit of satellites

• Proxies used instead

Reference: Kulmala, M., Arola, A., Nieminen, T., Riuttanen, L., Sogacheva, L., de Leeuw, G., Kerminen, V.-M., and Lehtinen, K. E. J.: The first estimates of global nucleation mode aerosol concentrations based on satellite measurements, ACP., 11,, 2011.

NH Winter

Summer Autumn

Spring

From OMI VFD to Polar Satellite data center

• Extended real-time satellite data services under development• New 7.3 m antenna• ESA Security and safety standards • High speed 10 Gbit /s network

• NASA/NOAA Suomi NPP data reception (OMPS, VIIRS)

• Sentinel collaborative ground segment

OMI ST 2014 15

OMPS Total ozone

OMI - Happy 10 years anniversary!

Thank you Colleagues: The success is based on exceptionally good collaboration between the Netherlands, USA and Finland.

OMI ST 2014 16Figue: NASA

Grimsvötn eruption 2011