Tropical Depression 02S

Passive Microwave (PMW) Intensity Information
Advanced Dvorak Technique (ADT)
Version 8.2.1
 

         Overpass     Inten           Ring    Ring          Wind           Forecast        Final        Target  
       Date    Time   Score  Meaning   Pct    Diam  BTdiff   Est   Sat    Lat    Lon    Lat    Lon    Lat    Lon              
     20161219 180740   -0.8      N/A  65.8%  22.22     .84  35.0  AMSR2 -16.1 -113.8  -16.1 -113.8  -16.1 -113.8 Analysis Plot     
     20161219 211911   -0.0      N/A   N/A     N/A    0.00  35.0    GMI -16.0 -113.8  -16.0 -113.8  -16.1 -113.5 Analysis Plot     
     20161220 062048   -0.0      N/A   N/A     N/A    0.00  35.0  AMSR2 -14.3 -114.0  -14.3 -114.0  -15.3 -113.6 Analysis Plot     
     20161220 231300   -0.0      N/A   N/A     N/A    0.00  35.0 SSMI17 -14.7 -113.9  -14.8 -112.6  -14.8 -112.6 Analysis Plot     
     20161220 233300   -0.0      N/A   N/A     N/A    0.00  35.0 SSMI18 -14.7 -113.9  -14.6 -112.7  -14.6 -112.7 Analysis Plot     
     20161221 094313   -0.0      N/A   N/A     N/A    0.00  40.0    GMI -14.2 -114.1  -14.2 -114.1  -14.2 -113.2 Analysis Plot     
     20161221 175423  -15.8      N/A 100.0%  22.22     .82  45.0  AMSR2 -14.1 -114.5  -14.1 -114.5  -14.1 -113.4 Analysis Plot     
     20161221 225800   -0.0      N/A   N/A     N/A    0.00  45.0 SSMI17 -14.1 -114.7  -14.1 -114.7  -14.2 -113.3 Analysis Plot     
     20161221 231900   -0.0      N/A   N/A     N/A    0.00  45.0 SSMI18 -14.1 -114.7  -14.1 -114.7  -14.1 -113.3 Analysis Plot     
     20161222 060819   -0.0      N/A   N/A     N/A    0.00  45.0  AMSR2 -14.0 -114.9  -14.0 -114.9  -13.9 -113.5 Analysis Plot     
     20161222 201430   -0.0      N/A   N/A     N/A    0.00  40.0 SSMI15 -14.4 -114.8  -14.4 -114.8  -14.3 -113.5 Analysis Plot     
     20161222 201803  -17.5      N/A 100.0%  22.22    2.52  40.0    GMI -14.5 -114.9  -14.5 -114.9  -14.6 -113.7 Analysis Plot     
     20161222 224400   -0.0      N/A   N/A     N/A    0.00  40.0 SSMI17 -14.6 -115.0  -14.6 -115.0  -14.9 -113.9 Analysis Plot     
     20161222 230600   -0.0      N/A   N/A     N/A    0.00  40.0 SSMI18 -14.6 -115.0  -14.6 -115.0  -14.8 -114.0 Analysis Plot     
     20161223 194121   -4.2      N/A  27.4%  77.77    4.19  30.0 SSMI15 -14.9 -117.7  -14.9 -117.7  -15.2 -117.4 Analysis Plot     
     20161223 223100   -0.4      N/A   N/A  111.10     .41  30.0 SSMI17 -15.2 -118.2  -15.2 -118.2  -14.9 -118.5 Analysis Plot     
     20161223 225400   -0.9      N/A   2.7% 133.32     .94  30.0 SSMI18 -15.3 -118.3  -15.3 -118.3  -15.3 -118.6 Analysis Plot     
     20161223 225400   -0.8      N/A   1.4% 133.32     .76  30.0 SSMI18 -15.3 -118.2  -15.3 -118.2  -15.3 -118.6 Analysis Plot
 
 
Legend:

  - Date/Time are determined from PMW imagery at Forecast (initial guess) Lat/Lon position.

  - Positive/Negative Latitude = North/South Hemisphere; Longitude = Western/Eastern Hemisphere.

  - "Ring Diam" value indicates the estimated surface eyewall diameter in km (the MI eyewall edge diameter minus 10 km).

  - "Ring Pct" is the percentage of the "ring" (eyewall inner boundary) that is 1) colder than the "hot spot" (warmest eye pixel) in the eye by 20K, or 2) the percentage that is a) colder than 232K and b) colder than the "hot spot" by 10K, whichever is greater.
  - Values are red if Ring % <= 65, yellow/brown if Ring % <= 85 and green if Ring % > 85.

  - "Tb diff" is the difference between the "hot spot" (warmest eye pixel) and the warmest pixel on the eyewall.

  - Intensity score are listed as negative, and not used, when the JTWC or NHC estimated Vmax is <55 kts in order to rule out weak but highly symmetric TCs.

  - Error messages in intensity scores: -920 is used when the hottest pixel in the eye is <200K, to prevent false positives; -930 means <85% of eyewall has observations/data.