HIGH RESOLUTION FIRE HAZARD INDEX BASED ON SATELLITE … · IV INTERNATIONAL CONGRESS ON RISKS, 23...
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IV INTERNATIONAL CONGRESS ON RISKS, 23 - 25 May 2017, Coimbra HIGH RESOLUTION FIRE HAZARD INDEX BASED ON SATELLITE IMAGES G. Laneve , P. Marzialetti, L. Fusilli SIA – Sapienza Università di Roma IV INTERNATIONAL CONGRESS ON RISKS "Risks and Education"
Transcript of HIGH RESOLUTION FIRE HAZARD INDEX BASED ON SATELLITE … · IV INTERNATIONAL CONGRESS ON RISKS, 23...
IV INTERNATIONAL CONGRESS ON RISKS, 23 - 25 May 2017, Coimbra
HIGH RESOLUTION FIRE HAZARD INDEX
BASED ON SATELLITE IMAGES
G. Laneve, P. Marzialetti, L. Fusilli
SIA – Sapienza Università di Roma
IV INTERNATIONAL CONGRESS ON RISKS
"Risks and Education"
IV INTERNATIONAL CONGRESS ON RISKS, 23 - 25 May 2017, Coimbra
Background: PREFER project objectives
www.prefer-copernicus.eu/
IV INTERNATIONAL CONGRESS ON RISKS, 23 - 25 May 2017, Coimbra
Background: PREFER project products
Test Area (bright colour) Preparedness/Prevention Service Recovery/Reconstruction Service
IV INTERNATIONAL CONGRESS ON RISKS, 23 - 25 May 2017, Coimbra
Daily Fire Hazard Index: objectives
IV INTERNATIONAL CONGRESS ON RISKS, 23 - 25 May 2017, Coimbra
Daily Fire Hazard Index: objectives
Automatic download of the MODIS image of the present day
Compute NDVI, EWT
Automatic download of Meteorological data for present and two following days.
Compute air temperature and humidity maps, ET0, emc.+ DEM
Fuel map, historical NDVImax and NDVImin, EWTmax and EWTmin
Compute Relative Greenness (RG), green vegetation fraction (LF), dead vegetation fraction (DF), ten hour lag fuel moisture (TNF).
Compute DHI maps for present and two following days
IV INTERNATIONAL CONGRESS ON RISKS, 23 - 25 May 2017, Coimbra
Daily Fire Hazard Index: intermediate maps
DEM based on SRTM Fuel map
ET0Temperature Humidity
DFHI
temporal resolution = 1 day,
spatial resolution = 250 mEWTNDVI
Static data
Daily MODIS data
Input
Output
IV INTERNATIONAL CONGRESS ON RISKS, 23 - 25 May 2017, Coimbra
Daily Fire Hazard Index: example
24/08/201622/08/2016
IV INTERNATIONAL CONGRESS ON RISKS, 23 - 25 May 2017, Coimbra
Daily Fire Hazard Index: development
IV INTERNATIONAL CONGRESS ON RISKS, 23 - 25 May 2017, Coimbra
Daily Fire Hazard Index: development
IV INTERNATIONAL CONGRESS ON RISKS, 23 - 25 May 2017, Coimbra
Daily Fire Hazard Index: increasing resolution
IV INTERNATIONAL CONGRESS ON RISKS, 23 - 25 May 2017, Coimbra
Daily Fire Hazard Index: increasing resolution
IV INTERNATIONAL CONGRESS ON RISKS, 23 - 25 May 2017, Coimbra
Daily Fire Hazard Index: increasing resolution
IV INTERNATIONAL CONGRESS ON RISKS, 23 - 25 May 2017, Coimbra
Daily Fire Hazard Index: including wind speed
IV INTERNATIONAL CONGRESS ON RISKS, 23 - 25 May 2017, Coimbra
Daily Fire Hazard Index: including wind speed
Fig. 5 - Comparison between DFHI maps computed by using daily wind data (left image) or assuming a constant
wind speed value of 2 m/sec (right image). Black circles highlight the main differences in the areas at high, very
high or extreme hazard.
IV INTERNATIONAL CONGRESS ON RISKS, 23 - 25 May 2017, Coimbra
Conclusions
IV INTERNATIONAL CONGRESS ON RISKS, 23 - 25 May 2017, Coimbra
Thank you
eosial.psm.uniroma1.it [email protected]
