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Dynamic greenness maps:                      An initial evaluation                                                 Algeria...
Algeria                    non-seasonal sporadic rainfall in hyper-arid areas (11-20 July 2008)Wednesday, 11 January 12
Algeria                    non-seasonal sporadic rainfall in hyper-arid areas (11-20 July 2008)Wednesday, 11 January 12
MODISWednesday, 11 January 12
MODIS                           UCLWednesday, 11 January 12
Landsat                            UCLWednesday, 11 January 12
Landsat                            UCLWednesday, 11 January 12
MODIS                           UCLWednesday, 11 January 12
Landsat                            UCLWednesday, 11 January 12
Landsat                                              UCL                           Algerian SaharaWednesday, 11 January 12
Mauritania                      seasonal rainfall N Sahel summer breeding areas (1-10 Sep 2008)Wednesday, 11 January 12
Mauritania                      seasonal rainfall N Sahel summer breeding areas (1-10 Sep 2008)Wednesday, 11 January 12
UCLWednesday, 11 January 12
UCLWednesday, 11 January 12
MODISWednesday, 11 January 12
MODIS                           UCLWednesday, 11 January 12
Landsat                            UCLWednesday, 11 January 12
Landsat                            UCLWednesday, 11 January 12
Landsat                            UCLWednesday, 11 January 12
MODIS                           UCLWednesday, 11 January 12
Landsat                            UCLWednesday, 11 January 12
Landsat                            UCLWednesday, 11 January 12
Landsat                            UCLWednesday, 11 January 12
MODISWednesday, 11 January 12
MODIS                           UCLWednesday, 11 January 12
LandsatWednesday, 11 January 12
Landsat                            UCLWednesday, 11 January 12
Mauritania interior                           Mauritania interior                                                         ...
Pakistan                  SW Asia monsoon rainfall in summer breeding areas (1-10 July 2008)Wednesday, 11 January 12
Pakistan                  SW Asia monsoon rainfall in summer breeding areas (1-10 July 2008)Wednesday, 11 January 12
MODIS                           Pakistan                                      India                                       ...
MODIS                           UCLWednesday, 11 January 12
Landsat                           Pakistan                                      India                                     ...
Landsat                            UCLWednesday, 11 January 12
Yemen                           rainfall on Red Sea coast in breeding areas (1-10 July 2008)Wednesday, 11 January 12
Yemen                           rainfall on Red Sea coast in breeding areas (1-10 July 2008)Wednesday, 11 January 12
sandy           rocky             Red Sea                           coastal plains   highlandsWednesday, 11 January 12
MODISWednesday, 11 January 12
MODIS                           UCLWednesday, 11 January 12
Landsat                            UCLWednesday, 11 January 12
Landsat                            UCLWednesday, 11 January 12
MODISWednesday, 11 January 12
MODIS                           UCLWednesday, 11 January 12
Landsat                            UCLWednesday, 11 January 12
Landsat                                                  UCL                           Yemen Red Sea coastWednesday, 11 Ja...
Yemen                           sporadic rainfall in summer breeding areas (21-30 June 2008)Wednesday, 11 January 12
Yemen                           sporadic rainfall in summer breeding areas (21-30 June 2008)Wednesday, 11 January 12
MODISWednesday, 11 January 12
MODIS                           UCLWednesday, 11 January 12
LandsatWednesday, 11 January 12
Landsat                            UCLWednesday, 11 January 12
Landsat                            UCLWednesday, 11 January 12
MODIS       UCLWednesday, 11 January 12
Landsat       UCLWednesday, 11 January 12
Landsat       UCL                                            Yemen interior                           Yemen interiorWednes...
Initial impressions of the UCL product                           non-seasonal sporadic rainfall                           ...
Phase 2                           further refinement according to area and time of year                             hyper-a...
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Greenness maps - Initial evaluation

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The FAO Senior Locust Forecasting Officer, Keith Cressman, presented an initial evaluation of the dynamic greenness maps developed by the Dept. of Environmental Sciences and Land Use Planning / Environmetrics and Geomatics at the Université catholique de Louvain (UCL), Louvain-le-Neuve, Belgium.

The dynamic green vegetation map includes both the spatial and temporal information in one geotiff-formatted file suitable for analysis within the SWARMS GIS. The map shows the evolution of vegetation development for the previous 11 decades (i.e. eleven 10-day periods) for each 250m pixel, indicated in varying shades of red, orange and green. The product informs the user, in this case FAO’s Locust Forecasting Officer, of the spatial-temporal variations of the green vegetation and indirectly of the rainfall distribution through vegetation development. This allows the onset of green vegetation, and ephemeral vegetation (false starts), and the disappearance of vegetation at the end of its developmental cycle to be identified. It also indicates the location of evergreen vegetation that is of less importance to Desert Locust. The reporter presented his initial assessment of the new product, indicating some recession areas where vegetation changes are not detected.

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Transcript of "Greenness maps - Initial evaluation"

  1. 1. Dynamic greenness maps: An initial evaluation Algerian Sahara Mauritania Sahel Pakistan summer breeding Yemen Red Sea coast Yemen interior Keith Cressman FAO Senior Locust Forecasting Officer October 2008Wednesday, 11 January 12
  2. 2. Algeria non-seasonal sporadic rainfall in hyper-arid areas (11-20 July 2008)Wednesday, 11 January 12
  3. 3. Algeria non-seasonal sporadic rainfall in hyper-arid areas (11-20 July 2008)Wednesday, 11 January 12
  4. 4. MODISWednesday, 11 January 12
  5. 5. MODIS UCLWednesday, 11 January 12
  6. 6. Landsat UCLWednesday, 11 January 12
  7. 7. Landsat UCLWednesday, 11 January 12
  8. 8. MODIS UCLWednesday, 11 January 12
  9. 9. Landsat UCLWednesday, 11 January 12
  10. 10. Landsat UCL Algerian SaharaWednesday, 11 January 12
  11. 11. Mauritania seasonal rainfall N Sahel summer breeding areas (1-10 Sep 2008)Wednesday, 11 January 12
  12. 12. Mauritania seasonal rainfall N Sahel summer breeding areas (1-10 Sep 2008)Wednesday, 11 January 12
  13. 13. UCLWednesday, 11 January 12
  14. 14. UCLWednesday, 11 January 12
  15. 15. MODISWednesday, 11 January 12
  16. 16. MODIS UCLWednesday, 11 January 12
  17. 17. Landsat UCLWednesday, 11 January 12
  18. 18. Landsat UCLWednesday, 11 January 12
  19. 19. Landsat UCLWednesday, 11 January 12
  20. 20. MODIS UCLWednesday, 11 January 12
  21. 21. Landsat UCLWednesday, 11 January 12
  22. 22. Landsat UCLWednesday, 11 January 12
  23. 23. Landsat UCLWednesday, 11 January 12
  24. 24. MODISWednesday, 11 January 12
  25. 25. MODIS UCLWednesday, 11 January 12
  26. 26. LandsatWednesday, 11 January 12
  27. 27. Landsat UCLWednesday, 11 January 12
  28. 28. Mauritania interior Mauritania interior Landsat UCLWednesday, 11 January 12
  29. 29. Pakistan SW Asia monsoon rainfall in summer breeding areas (1-10 July 2008)Wednesday, 11 January 12
  30. 30. Pakistan SW Asia monsoon rainfall in summer breeding areas (1-10 July 2008)Wednesday, 11 January 12
  31. 31. MODIS Pakistan India nal Ca an th jas RaWednesday, 11 January 12
  32. 32. MODIS UCLWednesday, 11 January 12
  33. 33. Landsat Pakistan India nal Ca an th jas RaWednesday, 11 January 12
  34. 34. Landsat UCLWednesday, 11 January 12
  35. 35. Yemen rainfall on Red Sea coast in breeding areas (1-10 July 2008)Wednesday, 11 January 12
  36. 36. Yemen rainfall on Red Sea coast in breeding areas (1-10 July 2008)Wednesday, 11 January 12
  37. 37. sandy rocky Red Sea coastal plains highlandsWednesday, 11 January 12
  38. 38. MODISWednesday, 11 January 12
  39. 39. MODIS UCLWednesday, 11 January 12
  40. 40. Landsat UCLWednesday, 11 January 12
  41. 41. Landsat UCLWednesday, 11 January 12
  42. 42. MODISWednesday, 11 January 12
  43. 43. MODIS UCLWednesday, 11 January 12
  44. 44. Landsat UCLWednesday, 11 January 12
  45. 45. Landsat UCL Yemen Red Sea coastWednesday, 11 January 12
  46. 46. Yemen sporadic rainfall in summer breeding areas (21-30 June 2008)Wednesday, 11 January 12
  47. 47. Yemen sporadic rainfall in summer breeding areas (21-30 June 2008)Wednesday, 11 January 12
  48. 48. MODISWednesday, 11 January 12
  49. 49. MODIS UCLWednesday, 11 January 12
  50. 50. LandsatWednesday, 11 January 12
  51. 51. Landsat UCLWednesday, 11 January 12
  52. 52. Landsat UCLWednesday, 11 January 12
  53. 53. MODIS UCLWednesday, 11 January 12
  54. 54. Landsat UCLWednesday, 11 January 12
  55. 55. Landsat UCL Yemen interior Yemen interiorWednesday, 11 January 12
  56. 56. Initial impressions of the UCL product non-seasonal sporadic rainfall in hyper-arid areas misses green vegetation (Algerian Sahara) seasonal rainfall misses green vegetation in north in N Sahel summer breeding areas better in south (Mauritania) SW Asia monsoon rainfall some vegetation changes detected in summer breeding areas other vegetation? (Pakistan) rainfall on Red Sea coast difficult to detect annual vegetation in breeding areas better in cropping areas (Yemen) sporadic rainfall more reliable in cropping areas in summer breeding areas than in desert (Yemen)Wednesday, 11 January 12
  57. 57. Phase 2 further refinement according to area and time of year hyper-arid areas in the Sahara (all year) northern Sahel, Indo-Pakistan,Yemen interior (summer) Red Sea coast (all year)Wednesday, 11 January 12
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