Research on three branches of activity

High-quality research is utilized to develop services to benefit our everyday life. Visible examples are improvement of weather forecasts, development of new expert and warning services as well as applications of the newest research results.

The meteorological and marine research programme does basic and applied research on meteorology, atmospheric science and physical oceanography. Research subjects include forecast models for different time frames, scientific applications and remote sensing observations linked to the research area as well as the effects of climate change and how to adapt to them.
 
The climate research programme does basic and applied research on the different components of the climate system. The research subjects are especially past, current and future climate as well as the composition of the atmosphere and its effects on climate change and air quality. Some of the employees of the programme work at the office in Kuopio.
 
The space and earth observation centre is responsible for the research of the polar regions and near space as well as developing technology related to the activity. The research subjects are especially arctic research and remote sensing, new observation methods and space. The Arctic Space Centre and Sodankylä office are a part of the Space and earth observation centre.

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FMI's researchers publish about 300 peer-reviewed articles annually.

In Science News we publish current information about FMI's studies on the weather, the sea and the climate.

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Global methane estimates from atmospheric inverse model

Global methane estimates from atmospheric inverse model

Estimated global total mean CH4 emission for the study period is 516 ± 51 Tg with an increase of 18 Tg CH4 yr−1 from 2000–2006 to 2007–2012.

We estimated global methane emissions during 2000–2012 using CarbonTracker Europe-CH4 (CTE-CH4) atmospheric inverse model. Estimated global total mean CH4 emission for the study period is 516 ± 51 Tg CH4 yr−1, with an increase of 18 Tg CH4 yr−1 from 2000–2006 to 2007–2012. The increase is mainly driven by an increase in emissions from South American temperate, Asian temperate and Asian tropical regions. In addition, the increase is much smaller than suggested by EDGAR v4.2 FT2010 inventory (33 Tg CH4 yr−1), which was used for prior anthropogenic emission estimates. The result is in good agreement with other published estimates from inverse modelling studies (16–20 Tg CH4 yr−1). We find that the global CH4 balance could be closed over this time period without strong anthropogenic CH4 emission increase from North America and Europe. The results were evaluated against model-independent observations from European aircraft campaigns, and satellite remote sensing (GOSAT) and ground-based (TCCON) dry air column-averaged mole fraction (XCH4) retrievals, which showed a good agreement with the observations.

CTE-CH4 is developed at FMI, based on CO2 version of CarbonTracker models developed at NOAA and Wageningen University. CTE-CH4 optimizes both biospheric and anthropogenic CH4 emissions simultaneously, constrained by global atmospheric CH4 observations.

More information:

Researcher Aki Tsuruta, tel. +358 50 442 7775, aki.tsuruta@fmi.fi

Tsuruta, A., Aalto, T., Backman, L., Hakkarainen, J., van der Laan-Luijkx, I. T., Krol, M. C., Spahni, R., Houweling, S., Laine, M., Dlugokencky, E., Gomez-Pelaez, A. J., van der Schoot, M., Langenfelds, R., Ellul, R., Arduini, J., Apadula, F., Gerbig, C., Feist, D. G., Kivi, R., Yoshida, Y., and Peters, W.: Global methane emission estimates for 2000–2012 from CarbonTracker Europe-CH4 v1.0, Geosci. Model Dev., 10, 1261-1289, doi:10.5194/gmd-10-1261-2017, 2017.

http://www.geosci-model-dev.net/10/1261/2017/gmd-10-1261-2017.pdf

 


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Contact information

Scientific Director Ari Laaksonen
tel. +358 539 5530

Meteorological and Marine Research Programme
Director Sami Niemelä
tel. +358 29 539 4172

Climate Research Programme
Director  Hannele Korhonen
tel. +358  29 539 2135

Space and Earth Observation Centre
Director Jouni Pulliainen
tel. +358 29 539 4701

Science News
Communications Specialist Eija Vallinheimo
tel. +358 29 539 2231

FMI publications

FMI´s own publications series are:

  • FMI Contributions: high-quality peer-reviewed research results, mainly doctoral dissertations
  • FMI Reports: current research results mainly for customers and other stakeholders

All publications from 2016 onwards can be found on Helda.