HAPEX HAPEX SAHEL Information System
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AVHRR_91_extract


Comment:
This table contains site radiance, reflectance, and temperature statistics derived from respective level-1 HAPEX SAHEL IS satellite image products (with atmospherical correction).
Principal investigator:
Yann KERR
The fields of the table are:
  1. GRID_ID : This column contains the name of the grid where the data was taken.
  2. GRID_ORDER : This column contains the number of the station in the grid cell.
  3. OBS_DATE : This column contains the date on which the observation was made in the format ( DD-MON-YY ).
  4. OBS_TIME : This column contains the time on which the observation was made in GMT.
  5. NOAA_NUMBER : This column contains the NOAA number.
  6. ORBIT_NUMBER : This column contains the orbit number.
  7. VIEWZEN : This column contains the viewing zenith angle at the center of the site ( degrees ).
  8. VIEWAZ : This column contains the viewing azimuth angle at the center of the site ( degrees) with : North = 0, East = 90, South = 180, West = 270).
  9. SOLARZEN : This column contains the solar zenith angle at the center of the site ( degrees ).
  10. SOLARAZ : This column contains the solar azimuth angle at the center of the site ( degrees ) with : North = 0, East = 90, South = 180, West = 270).
  11. REFL1_TOA : This column contains the TOA reflectance over the site for band 1 ( W m-2 ).
  12. AVG_REFL1_TOA : This column contains the average TOA reflectance over the site for band 1 ( W m-2 ).
  13. STD_REFL1_TOA : This column contains the standard deviation of TOA reflectance over the site for band 1 ( W m-2 ).
  14. REFL2_TOA : This column contains the TOA reflectance over the site for band 2 ( W m-2 )
  15. AVG_REFL2_TOA : This column contains the average TOA reflectance over the site for band 2 ( W m-2 ).
  16. STD_REFL2_TOA : This column contains the standard deviation of TOA reflectance over the site for band 2 ( W m-2 ).
  17. T4 : This column contains the brightness temperature values over the site for band 4 ( K ).
  18. STD_T4 : This column contains the average brightness temperature values over the site for band 4 ( K ).
  19. AVG_T4 : This column contains the standard deviation for brightness temperature values over the site for band 4 ( K ).
  20. T5 : This column contains the brightness temperature values over the site for band 5 ( K ).
  21. STD_T5 : This column contains the average brightness temperature values over the site for band 5 ( K ).
  22. AVG_T5 : This column contains the standard deviation for brightness temperature values over the site for band 5 ( K ).
  23. MSAVI_TOA : This column contains the MSAVI (calculated from TOA reflectances) over the site.
  24. AVG_MSAVI_TOA : This column contains the average MSAVI (calculated from TOA reflectances) over the site.
  25. STD_MSAVI_TOA : This column contains the standard deviation for the MSAVI (calculated from TOA reflectances) over the site.
  26. NDVI_TOA : This column contains the NDVI (calculated from TOA reflectances) over the site.
  27. AVG_NDVI_TOA : This column contains the average NDVI (calculated from TOA reflectances) over the site.
  28. STD_NDVI_TOA : This column contains the standard deviation for the NDVI (calculated from TOA reflectances) over the site.
  29. SURFACE_TEMPERATURE : This column contains the surface temperature over the site ( K ).
  30. AVG_SURFACE_TEMPERATURE : This column contains the average surface temperature over the site ( K ).
  31. STD_SURFACE_TEMPERATURE : This column contains standard deviation for the surface temperature over the site ( K ).
  32. REFL1_GND : This column contains the ground reflectance over the site for band 1 ( W m-2 )
  33. AVG_REFL1_GND : This column contains the average ground reflectance over the site for band 1 ( W m-2 ).
  34. STD_REFL1_GND : This column contains the standard deviation of the ground reflectance over the site for band 1 ( W m-2 ).
  35. REFL2_GND : This column contains the ground reflectance over the site for band 2 ( W m-2 )
  36. AVG_REFL2_GND : This column contains the average ground reflectance over the site for band 2 ( W m-2 ).
  37. STD_REFL2_GND : This column contains the standard deviation of ground reflectance over the site for band 2 ( W m-2 ).
  38. MSAVI_GND : This column contains the MSAVI (calculated from ground reflectances) over the site.
  39. AVG_MSAVI_GND : This column contains the average MSAVI (calculated from ground reflectances) over the site.
  40. STD_MSAVI_GND : This column contains the standard deviation for the MSAVI (calculated from ground reflectances) over the site.
  41. NDVI_GND : This column contains the NDVI (calculated from ground reflectances) over the site.
  42. AVG_NDVI_GND : This column contains the average NDVI (calculated from ground reflectances) over the site.
  43. STD_NDVI_GND : This column contains the standard deviation for the NDVI (calculated from ground reflectances) over the site.
  44. CERT_LEVEL : This column contains the certification level for the data : T)est, C)hecked by PI, U)nchecked By PI.
  45. REV_DATE : This column contains the revision date for the data in the format DD-MMM-YY.

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