Browsing articles in "fip"

Vertical mass distribution of Fire Emission for North America 2011 (BORTAS):

Apr 15, 2013   //   by ronan   //   fip  //  No Comments

The geographic zone  is latitude= [35.,  75.], longitude = [-170., -40.]. Injection heights are processed for all detected fire over the year 2011 using MODIS 14 v5 for the fire thermal data and ECMWF analysis for the ambient condition.

Data can be found here for 2011, and a description of the data is available in this post.

Same data are also available for 2003.

EGU 2o13 Poster

Apr 11, 2013   //   by ronan   //   fip  //  No Comments

Vertical mass distribution of Fire Emission for Europe:

Mar 15, 2013   //   by ronan   //   fip  //  No Comments

This was done for the “Chernobyl” Project. It focuses over Europe (latitude = [35, 70],  longitude = [-10,70]) for years, 2003, 2008, and 2010.
For each year you can find mass distribution derived with different plume rise model (PRM). So far, we compared 4 different approaches:

  • saulo: this version uses the original PRM descirbed in Freitas et al 2007 and 2010
  • prmv1: an improved version of saulo’s PRM where the convection of each fire is derived from its FRP (see val martin et al 2012).
  • prmv2: a further improved version of prmv1 where mass convervation equation was implemented in the PRM together with a new detrainment/entrainment scheme inspired from pergaud et al 2009
  • sofiev: this last version is using the approach proposed in sofiev et al 2012

For each PRM, you have access to 4 outputs:

  • Map: daily average map of FRE and maximum injection Height in png
  • NetCdf : daily 3D profile of FRE in netcdf format
  • CrossSection: cross section of burnt mass converted from FRE using ( 0.368 x FRE, wooster et al 2005 – this could be improved) in png
  • TimeSeries: Time series of FRE, Number of Fire, max Injection Height, and max and mean Injection Height above the Boundary Layer for 15 zones covering Europe. png and text format.

Limitation of the current approach:

  • The models used in prmv1 and prmv2 have been optimized with fire located in Northern America in Boreal Forest. As Fire over Europe are mainly agricultural, their physical behaviour might be different and new calibration are certainly required.
  •   The total FRE (and so mass) emitted in each  approach might differ as for some fire, the PRM  might crash. A way to solve this issue is currently investigated.