Tropical Depression 08U


ARCHER-V2 Auto-positioning Information
Advanced Dvorak Technique (ADT)
Version 9.0
 

                                         -------FORECAST-----   ----ARCHER---- 50% cert  95% cert Eyewall   Conf Alpha  Eye
     Date/Time(UTC)     Source   Sensor    Lat     Lon   Vmax      Lat     Lon   radius    radius  radius  Score Score  Prob    .
   20211225 07:40:00  HIMAWARI       IR  -12.07 -130.02  25.0   -12.52 -129.25     2.04      5.75   0.05    0.29  0.82  67.2 GIF
   20211225 08:10:00  HIMAWARI       IR  -12.09 -130.02  25.0   -12.11 -129.56     3.36      9.49   0.10    0.25  0.50  69.3 GIF
   20211225 08:40:00    SSMI18 85-92GHz  -12.10 -130.02  25.0    36.93  -80.34     0.28      0.79    N/A    1.02  5.96   0.0 GIF
   20211225 09:10:00    SSMI18 85-92GHz  -12.10 -130.02  25.0    36.93  -80.34     0.28      0.79    N/A    1.02  5.87   0.0 GIF
   20211225 09:40:00    SSMI18 85-92GHz  -12.10 -130.02  25.0    36.93  -80.34     0.28      0.79    N/A    1.02  5.74   0.0 GIF
   20211225 10:10:00  HIMAWARI   NearIR  -12.20 -130.01  25.0   -11.85 -129.68     0.10      0.27   0.05    2.04 17.36 100.0 GIF
   20211225 10:40:00  HIMAWARI   NearIR  -12.22 -130.01  25.0   -11.72 -129.40     0.30      0.84   0.05    0.69  5.63 100.0 GIF
   20211225 11:10:00  HIMAWARI   NearIR  -12.25 -130.01  25.0   -11.75 -129.03     0.21      0.58   0.05    0.98  8.14 100.0 GIF
   20211225 11:40:00    SSMI17 85-92GHz  -12.24 -130.01  25.0    37.26  -79.75     0.28      0.81    N/A    0.99  5.76   0.0 GIF
   20211225 12:10:00    SSMI17 85-92GHz  -12.24 -130.01  25.0    37.26  -79.75     0.28      0.81    N/A    0.99  5.64   0.0 GIF
   20211225 12:40:00    SSMI17 85-92GHz  -12.24 -130.01  25.0    37.26  -79.75     0.28      0.81    N/A    0.99  5.49   0.0 GIF
   20211225 13:10:00       GMI 85-92GHz  -12.35 -129.99  25.0    37.29  -79.59     0.27      0.78    N/A    1.06  6.07   0.0 GIF
   20211225 13:40:00       GMI 85-92GHz  -12.35 -129.99  25.0    37.29  -79.59     0.27      0.78    N/A    1.06  5.97   0.0 GIF
   20211225 14:10:00       GMI 85-92GHz  -12.35 -129.99  25.0    37.29  -79.59     0.27      0.78    N/A    1.06  5.83   0.0 GIF
   20211225 14:30:00       GMI 85-92GHz  -12.35 -129.99  25.0    37.29  -79.59     0.27      0.78    N/A    1.06  5.73   0.0 GIF
   20211225 15:10:00       GMI 85-92GHz  -12.35 -129.99  25.0    37.29  -79.59     0.27      0.78    N/A    1.06  5.50   0.0 GIF
   20211225 15:40:00       GMI 85-92GHz  -12.35 -129.99  25.0    37.29  -79.59     0.27      0.78    N/A    1.06  5.32   0.0 GIF
   20211225 16:10:00       GMI 85-92GHz  -12.35 -129.99  25.0    37.29  -79.59     0.27      0.78    N/A    1.06  5.13   0.0 GIF
   20211225 16:40:00  HIMAWARI   NearIR  -13.00 -130.44  25.0   -13.43 -130.26     0.32      0.91   0.05    0.64  5.20 100.0 GIF
   20211225 17:10:00       GMI 85-92GHz  -12.35 -129.99  25.0    37.29  -79.59     0.27      0.78    N/A    1.06  4.77   0.0 GIF
   20211225 17:40:00  HIMAWARI   NearIR  -13.08 -130.49  25.0   -13.15 -130.38     0.16      0.45   0.05    1.25 10.47 100.0 GIF
   20211225 18:10:00  HIMAWARI   NearIR  -13.11 -130.51  25.0   -13.31 -130.22     0.27      0.76   0.05    0.77  6.28 100.0 GIF
   20211225 18:40:00  HIMAWARI       IR  -13.15 -130.53  25.0   -13.25 -130.48     0.25      0.71   0.05    0.89  6.71  81.5 GIF
   20211225 19:10:00  HIMAWARI       IR  -13.18 -130.55  25.0   -13.33 -130.40     0.26      0.73   0.05    0.87  6.50  73.2 GIF
   20211225 19:40:00  HIMAWARI   NearIR  -13.21 -130.57  25.0   -12.31 -130.03     0.33      0.94   0.05    0.63  5.06 100.0 GIF
   20211225 20:10:00    SSMI18 85-92GHz  -13.24 -130.58  25.0    37.31  -80.67     0.18      0.51    N/A    2.03  9.28   0.0 GIF
   20211225 20:40:00  HIMAWARI   NearIR  -13.28 -130.61  25.0   -13.35 -130.91     0.10      0.29   0.05    1.95 16.53 100.0 GIF
   20211225 21:10:00    SSMI18 85-92GHz  -13.24 -130.58  25.0    37.31  -80.67     0.18      0.51    N/A    2.03  8.81   0.0 GIF
   20211225 21:40:00    SSMI18 85-92GHz  -13.24 -130.58  25.0    37.31  -80.67     0.18      0.51    N/A    2.03  8.48   0.0 GIF
   20211225 22:10:00    SSMI18 85-92GHz  -13.24 -130.58  25.0    37.31  -80.67     0.18      0.51    N/A    2.03  8.12   0.0 GIF
   20211225 22:40:00    SSMI18 85-92GHz  -13.24 -130.58  25.0    37.31  -80.67     0.18      0.51    N/A    2.03  7.75   0.0 GIF
   20211225 23:10:00    SSMI18 85-92GHz  -13.24 -130.58  25.0    37.31  -80.67     0.18      0.51    N/A    2.03  7.38   0.0 GIF
   20211225 23:40:00  HIMAWARI      Vis  -13.48 -130.69  25.0   -13.33 -130.67     0.19      0.55   0.15    0.66  8.67  72.8 GIF
   20211226 00:10:00  HIMAWARI      Vis  -13.51 -130.70  25.0   -13.36 -130.55     0.20      0.57   0.10    0.63  8.25  71.0 GIF
   20211226 00:40:00    SSMI18 85-92GHz  -13.24 -130.58  25.0    37.31  -80.67     0.18      0.51    N/A    2.03  6.32   0.0 GIF
   20211226 01:10:00  HIMAWARI      Vis  -13.58 -130.72  25.0   -13.53 -130.57     0.25      0.72   0.05    0.51  6.59  65.8 GIF
 
 
Key:

  - Date/Time: UTC time. If this observation is used in the track it is marked with a "*". If it is used for its own 30-minute window, it is put in bold.

  - Source/sensor: Satellite source of the analyzed image.

  - Vmax: Maximum winds listed in the forecast center analysis/forecast, *not* ARCHER.

  - ARCHER lat/lon: Coordinates of the ARCHER algorithm, valid at the time of the observation. If no center fix could be found, then it is "***".

  - Geo ref lat/lon: Coordinates of the ARCHER algorithm, valid at the time of the *nearest geo image*.

  - 50% cert. rad.: Radius of the circle (in degrees) that defines the area in which the ARCHER center of rotation is 50% certain. The lower the number, the more certain the position.

  - 95% cert. rad.: Radius of the circle (in degrees) that defines the area in which the ARCHER center of rotation is 95% certain.

  - Eye diam (deg): ARCHER-resolved eye diameter (in degrees). Green: robust, yellow: less certain, red: not robust.

  - % cert. of eye: Percent certainty that an eye exists in this image, determined by ARCHER. Currently only available for IR and 85-92 GHz imagery.

 
Links to related versions:
  - Track Plot
  - Summary table
  - Intensity Estimation