Tropical Depression 01W


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    .
   20220330 16:10:00  HIMAWARI   NearIR   11.94 -109.88  25.0    12.24 -110.39     2.01      5.68   0.05    0.14  0.83  57.5 GIF
   20220330 16:40:00  HIMAWARI   NearIR   11.96 -109.82  25.0    12.31 -110.39     0.77      2.17   0.05    0.29  2.18  79.0 GIF
   20220330 17:10:00  HIMAWARI   NearIR   11.98 -109.77  25.0    12.71 -109.54     0.20      0.57   0.05    1.00  8.30 100.0 GIF
   20220330 17:40:00  HIMAWARI   NearIR   12.01 -109.72  25.0    12.76 -109.49     0.34      0.95   0.05    0.62  5.01 100.0 GIF
   20220330 18:10:00  HIMAWARI   NearIR   12.03 -109.66  25.0    11.85 -108.79     1.66      4.68   0.10    0.16  1.01  56.6 GIF
   20220330 18:40:00  HIMAWARI   NearIR   12.05 -109.60  25.0    11.85 -108.20     0.32      0.92   0.05    0.64  5.17 100.0 GIF
   20220330 19:10:00  HIMAWARI   NearIR   12.07 -109.55  25.0    13.07 -109.50     3.09      8.74   0.05    0.11  0.54  49.8 GIF
   20220330 19:40:00     AMSR2 85-92GHz   12.03 -109.66  25.0    11.89 -108.68     0.26      0.75    N/A    1.13  5.97   0.0 GIF
   20220330 20:10:00     AMSR2 85-92GHz   12.03 -109.66  25.0    11.91 -108.63     0.26      0.75    N/A    1.13  5.79   0.0 GIF
   20220330 20:40:00     AMSR2 85-92GHz   12.03 -109.66  25.0    11.94 -108.57     0.26      0.75    N/A    1.13  5.60   0.0 GIF
   20220330 21:10:00     AMSR2 85-92GHz   12.03 -109.66  25.0    11.96 -108.51     0.26      0.75    N/A    1.13  5.41   0.0 GIF
   20220330 21:50:00     AMSR2 85-92GHz   12.03 -109.66  25.0    11.99 -108.44     0.26      0.75    N/A    1.13  5.15   0.0 GIF
   20220330 22:10:00     AMSR2 85-92GHz   12.03 -109.66  25.0    12.01 -108.40     0.26      0.75    N/A    1.13  5.02   0.0 GIF
   20220330 22:40:00  HIMAWARI   NearIR   12.23 -109.15  25.0    12.78 -108.67     0.31      0.88   0.05    0.66  5.37  81.7 GIF
   20220330 23:10:00    SSMI16 85-92GHz   12.25 -109.11  25.0    11.91 -108.28     0.32      0.91    N/A    0.79  5.21   0.0 GIF
   20220330 23:40:00    SSMI16 85-92GHz   12.25 -109.11  25.0    11.93 -108.22     0.32      0.91    N/A    0.79  5.15   0.0 GIF
   20220331 00:10:00    SSMI16 85-92GHz   12.25 -109.11  25.0    11.96 -108.16     0.32      0.91    N/A    0.79  5.05   0.0 GIF
   20220331 00:40:00    SSMI16 85-92GHz   12.25 -109.11  25.0    11.98 -108.10     0.32      0.91    N/A    0.79  4.94   0.0 GIF
   20220331 01:10:00    SSMI16 85-92GHz   12.25 -109.11  25.0    12.01 -108.05     0.32      0.91    N/A    0.79  4.81   0.0 GIF
   20220331 01:40:00  HIMAWARI       IR   12.38 -108.81  25.0    13.28 -107.07     0.29      0.82   0.10    0.80  5.81 100.0 GIF
   20220331 02:10:00  HIMAWARI      Vis   12.41 -108.75  25.0    12.71 -108.47     0.30      0.84   0.05    0.45  5.65  60.4 GIF
   20220331 02:30:00  HIMAWARI      Vis   12.43 -108.71  25.0    12.75 -108.46     0.24      0.69   0.35    0.54  6.91  67.2 GIF
   20220331 03:10:00  HIMAWARI      Vis   12.46 -108.64  25.0    12.79 -108.36     0.38      1.08   0.25    0.36  4.41  66.6 GIF
   20220331 03:40:00    SSMI16 85-92GHz   12.25 -109.11  25.0    12.13 -107.76     0.32      0.91    N/A    0.79  4.11   0.0 GIF
   20220331 04:10:00    SSMI16 85-92GHz   12.25 -109.11  25.0    12.16 -107.70     0.32      0.91    N/A    0.79  3.97   0.0 GIF
   20220331 04:40:00  HIMAWARI      Vis   12.54 -108.47  25.0    12.89 -108.03     0.24      0.68   0.05    0.54  6.95  65.7 GIF
   20220331 05:10:00  HIMAWARI      Vis   12.56 -108.41  25.0    12.91 -107.82     0.26      0.73   0.10    0.51  6.50  67.4 GIF
   20220331 05:40:00  HIMAWARI      Vis   12.59 -108.36  25.0    12.86 -107.79     0.26      0.73   0.15    0.51  6.51  67.9 GIF
   20220331 06:10:00  HIMAWARI      Vis   12.61 -108.30  25.0    12.99 -107.77     0.18      0.51   0.05    0.70  9.23  81.9 GIF
   20220331 06:40:00  HIMAWARI      Vis   12.64 -108.25  25.0    12.89 -107.79     0.16      0.45   0.05    0.79 10.62  91.2 GIF
   20220331 07:10:00  HIMAWARI      Vis   12.66 -108.19  25.0    13.04 -107.89     0.24      0.68   0.05    0.54  6.99  77.7 GIF
   20220331 07:50:00  HIMAWARI      Vis   12.70 -108.12  25.0    13.10 -107.87     0.19      0.55   0.05    0.66  8.69  80.6 GIF
   20220331 08:10:00  HIMAWARI      Vis   12.71 -108.09  25.0    13.01 -107.98     0.21      0.60   0.20    0.61  7.96  80.8 GIF
   20220331 08:40:00  HIMAWARI       IR   12.74 -108.03  25.0    13.19 -107.55     0.50      1.41   0.05    0.55  3.36  83.3 GIF
   20220331 09:10:00  HIMAWARI   NearIR   12.76 -107.98  25.0    13.41 -107.47     0.51      1.45   0.05    0.42  3.27  61.2 GIF
   20220331 09:40:00    SSMI16 85-92GHz   12.77 -107.96  25.0    12.79 -107.58     0.45      1.26    N/A    0.34  3.73   0.0 GIF
   20220331 10:10:00    SSMI16 85-92GHz   12.77 -107.96  25.0    12.81 -107.53     0.45      1.26    N/A    0.34  3.69   0.0 GIF
   20220331 10:40:00    SSMI16 85-92GHz   12.77 -107.96  25.0    12.84 -107.48     0.45      1.26    N/A    0.34  3.64   0.0 GIF
   20220331 11:10:00    SSMI16 85-92GHz   12.77 -107.96  25.0    12.86 -107.43     0.45      1.26    N/A    0.34  3.58   0.0 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