1. INTERNATIONAL INSTITUTE FOR GEO-INFORMATION SCIENCE AND EARTH OBSERVATION AN AUTOMATED PROCEDURE FOR MULTI-TEMPORAL THRESHOLD ALGORITHM FOR FOREST FIRE DETECTION USING MSG SATELLITE Tawanda Manyangadze John Molefe Zimbabwe

2. OUTLINE  Objectives  Methodology  Results  Conclusion and Recommendations

3. OBJECTIVE  To develop a near real time automated procedure for multi-temporal threshold algorithm for forest fire detection using MSG satellite. Day 1 Day -n x Y Time 0230 UTC

4. Multi-temporal threshold algorithm Thresholds for the algorithm Actual fire (i) dT 3.9µm >m t(3.9µm) + f 1 (S t(3.9µm) ) (ii) T dif >m dif + f 2 (S dif ) Probable fire (i)dT 3.9µm >m t(3.9µm) + f 3 (S t(3.9µm) )<m t(3.9µm) + f 1 (S t(3.9µm) ) (ii) T dif > m dif + f 4 (S dif )<m dif + f 2 (S dif ) Day time f 1 = 2.5; f 2 =3; f 3 =2; f 4 =2.5; Night time f 1 =1; f 2 =3; f 3 =0; f 4 =0 Day: Solar zenith angle 90 0 Twilight Conditions : Linear Interpolation

5. Automated Procedure for the Multi- temporal threshold algorithm Solar zenith angles Multi-temporal analysis – temperature anomaliesCloud masking

6.  Scripts (ILWIS) (i) Create_solarzenithangles_maps (ii) CLM_processing (iii)Active_fire_detection_algorithm_v1.2.1  It should take less than 15 minutes to process the whole procedure and get the fire map Automated Procedure for the Multi- temporal threshold algorithm

7. Solar zenith angles Illumination conditions 1700 UTC 06 September 2007 Solar Zenith Angles 1700 UTC 06 September 2007 90 0 0

8. F 1 Thresholds 1700 UTC 06 September 2007 2.5 2.2 1.9 1.6 1.3 1.0

9. Results: Southern Africa

11. CONCLUSION & RECOMMENDATIONS  Conclusion  Multi-temporal method can be used in near real-time forest fire detection and monitoring  This algorithm can be applied to other areas in the view of MSG and other geostationary satellites  Recommendations  Further validation of the algorithm  Consider soil emissivity  Apply the algorithm to other geostationary satellites  Reduce the running time (Improve efficiency)

12. THANK YOU