Near-real time habitat change monitoring using neural networks and MODIS
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Brown bag presentation for TNC in Washington 24th September 2009 on the PARASID habitat monitoring tool. Authored by Andy Jarvis, Louis Reymondin and Jerry Touval.
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Near-real time habitat change monitoring using neural networks and MODIS
- 1. Near-real time monitoring of habitat change using a neural network and MODIS data: the PARASID approach Andy Jarvis, Louis Reymondin, Jerry Touval
- 6. NDVI Evolution and novelty detection Novelty/Anomoly
- 8. Methodology As required by the ARD algorithm, each input and the hidden output is a weights class with its own α α 0 α c INPUTS : Past NDVI (MODIS 3b42) Previous rainfall (TRMM) Temperature (WorldClim) OUTPUT : 16 day predicted NDVI NDVI t Precipitation (t) Temperature (t) … … w 0 w 1 w 2 NDVI (t-1) NDVI (t-2) NDVI (t-n) w p1 w p2 w p3 w o1 w o2 w o3
- 15. Parasid Test cases
- 19. Caqueta, Jan 2004 – May 2009 Date
- 20. NDVI 2004.01.01 NDVI 2009.01.01 Anomalies probability 2009.01.01
- 21. Colombia – Rio Caquetá
- 22. Colombia – Rio Caquetá
- 25. Colombia – Serranía San Lucas NDVI 2004.01.01 NDVI 2009.01.01 anomalies probability 2009.01.01 Cumulative detection on time
- 26. Colombia – Serranía San Lucas
- 29. Colombia – Sierra Nevada NDVI 2004.01.01 NDVI 2009.01.01 Anomalies probability 2009.01.01 Cumulative detection on time
- 30. Colombia – Sierra Nevada
- 33. NDVI 2004.01.01 NDVI 2009.01.01 Anomalies probability 2009.01.01
- 34. Bolivia – Santa Cruz Cumulative detection on time
- 35. Bolivia – Santa Cruz 0.09% deforestation rate
- 37. NDVI 2004.01.01 NDVI 2009.01.01 Anomalies probability 2009.01.01
- 38. Cumulative detection on time
- 42. Chile – Region del Bio Bio NDVI 2004.01.01 NDVI 2009.01.01 Anomalies probability 2009.01.01 Cumulative detection on time
- 43. Chile – Region del Bio Bio
- 45. And now the tough one…
- 48. OTCA Amazon Cooperation Treaty
- 52. Model comparison PARASID vs. FORMA PARASID detections First detection in 2004 FORMA probabilities First detection in 2000
- 53. PARASID vs DETER It seems Parasid model detects quite small and isolate events which Deter doesn’t detect. 2006 2004
- 55. Analysis of three images between the years 2000 and 2009. MATO-GROSSO – BRASIL LAT: - 10.1, LON: - 51.3 10/10/2000 LANDSAT 7 SLC ON 29/06/2009 LANDSAT 7 SLC OFF CLASSIFIED IMAGES IN ERDAS Forest Uncoverage Change 00-09 Unchanged CHANGE DETECTION IN ERDAS
- 59. GRACIAS!