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Published June 20, 2023 | Version v2
Dataset Open

Daily surface concentration of fire related PM2.5 for 2003-2022, modelled by SILAM CTM when using the MODIS satellite data for the fire radiative power

Creators

  • 1. Finnish Meteorological Institute

Contributors

Hosting institution:

Supervisor:

  • 1. Finnish Meteorological Institute

Description

Fine particles from wildfires are one important source for PM2.5. These small aerosol particles are risk to health and cause a large number of premature deaths world-wide. Using the MODIS satellite data we estimate the fine particulate matter emissions from wildfires and model they dispersion in atmosphere using the System for Integrated modeLling of Atmospheric coMposition (SILAM) chemistry transport model. The surface concentration of PM-fine, related to fires, is here evaluated for years 2003-2022 and the corresponding daily mean data is provided both in global scale, in 0.5 degree resolution, and also in European scale in 0.1 degree resolution.

Methods

We use the fire radiative power data of MODIS instrument onboard of Aqua and Terra satellite to estimate globally the fire radiative power (FRP) from wildfires for years 2003-2022. The FRP is converted to fire related fine particles (PM2.5) using calibrated emissions factors and diurnal profile, together with dynamical emission heights. The dispersion of the fire related PM is followed by using System for Integrated modeLling of Atmospheric coMposition (SILAM) chemistry transport model version 5.8 (http://silam.fmi.fi, open-source code http://github.com/fmidev/silam-model). The global scale simulations have a resolution of 0.5x0.5 degrees with 29 model levels reaching up to 10.5 Pascals (~64 km). The lowest layer top is at ~31 m. The European scale grid has a horizontal resolution of 0.1x0.1 degrees and the boundaries come from the global results, top boundary being at ~16 km. Both simulations have time resolution of one hour from which the daily averaged surface concentration is extracted to the this data-set. Both the global and European scale simulations use the ERA5 meteorology as a drive.

Technical info

TechnicalInfo: The dataset consists of two subsets: 1) NetCDF file PMfire_glob_2003to2022.nc4 contains the global daily averaged fire related PM surface concentration in 0.5 degree resolution. 2) NetCDF file PMfire_europe_2003to2022.nc4 contains the daily averaged fire related PM surface concentration in 0.1 degree resolution in European region, defined by lon = W25...E45, and lat = N30...N72. Compared to the previous version of the dataset [Dated June 21, 2022 with DOI:10.23728/fmi-b2share.a006840cce9340e8bf11e562bb8d396e ] the current version of the dataset has improved masking for non-fire related FRP (gas flares etc). Additionally, the current version includes the data for the year 2022.

Files

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PID: http://hdl.handle.net/11304/e916ebdf-2909-4adc-bcf6-a9cf9328be66
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Additional details

Identifiers

URL
https://etsin.fairdata.fi/dataset/2372c897-7da5-4fc9-be15-d5fe7bea587e
b2rec
722bb9d1937548908d2b6c1cfd9f8e5d

Funding

European Union H2020
EXHAUSTION 820655
Academy of Finland
HEATCOST 334798
European Union H2020
FirEUrisk 101003890

Instruments

System for Integrated modeLling of Atmopsheric coMposition SILAM
undefined (Other)

FMI metadata

Platforms
Model
System for Integrated modeLling of Atmopsheric coMposition SILAM
Parameter
  • Parameter name: Concentration of fire related PM
  • Parameter unit: kg/m3
  • Parameter description: cnc_PM_FRP_m_17
Data levels (meter, hectoPascal, degree, sigma pressure levels, other) in vertical direction(+/-) for example 1500 m or 850 hPa
  • Level: lowest model level (approximately from 0 to 31 m)
  • Level unit: other
Resolution
10
Topic category
environment

Temporal Coverage

Ranges:

Start date: 2002-12-31
End date: 2022-12-31

Locations

Global (0.5 x 0.5 degree resolution) Point:
(Lon: 0.0, Lat: 0.0 )

Global (0.5 x 0.5 degree resolution) Envelope:
(Lon: 89.0, Lat: -180.0 )
(Lon: -89.0, Lat: 180.0 )

European domain (0.1 x 0.1 degree resolution) Point:
(Lon: 0.0, Lat: 0.0 )

European domain (0.1 x 0.1 degree resolution) Envelope:
(Lon: 72.0, Lat: -25.0 )
(Lon: 30.0, Lat: 45.0 )