Tropical Storm 14W
|
Passive Microwave (PMW) Intensity Information Advanced Dvorak Technique Version 9.1 |
--Overpass-- --ARCHER-- Ring Ring Eye BT -Forecast-
Date Time Sat Lat Lon Diam Pct TbDiff Score Meaning Vmax Lat Lon
20240910 054154 SSMISF18 10.8 145.6 N/A N/A N/A N/A N/A 25.0 11.6 146.2 Analysis Plot
20240910 075622 SSMISF16 13.3 144.8 N/A N/A N/A N/A N/A 30.0 12.1 145.3 Analysis Plot
20240910 082726 SSMISF17 13.1 144.6 N/A N/A N/A N/A N/A 30.0 12.2 145.3 Analysis Plot
20240910 181816 SSMISF18 14.3 142.9 N/A N/A N/A N/A N/A 35.0 13.6 144.4 Analysis Plot
20240910 210358 SSMISF17 14.9 142.6 N/A N/A N/A N/A N/A 35.0 13.9 144.0 Analysis Plot
20240911 041414 AMSR2 14.3 141.6 N/A N/A N/A N/A N/A 30.0 14.4 141.9 Analysis Plot
20240911 081504 SSMISF17 14.9 139.9 N/A N/A N/A N/A N/A 35.0 15.1 141.6 Analysis Plot
20240911 115231 GMI 15.0 140.9 N/A N/A N/A N/A N/A 35.0 15.3 141.5 Analysis Plot
20240911 162714 AMSR2 16.7 138.9 N/A N/A N/A N/A N/A 35.0 15.9 140.0 Analysis Plot
20240912 170946 AMSR2 22.6 138.0 N/A N/A N/A N/A N/A 50.0 22.9 137.2 Analysis Plot
20240912 223955 GMI 21.9 137.3 N/A N/A N/A N/A N/A 50.0 23.0 137.1 Analysis Plot
20240913 040439 AMSR2 23.6 135.7 N/A N/A N/A N/A N/A 50.0 24.2 136.0 Analysis Plot
20240914 044838 AMSR2 27.1 130.4 34 54% 9.56 -9.56 N/A 50.0 27.2 130.1 Analysis Plot
20240915 121803 GMI 30.3 124.7 34 100% 22.77 37.77 >65 kts 75.0 30.7 124.5 Analysis Plot
20240915 220623 GMI 30.7 122.4 34 14% 8.88 8.88 N/A 70.0 30.8 122.4 Analysis Plot
20240916 182031 AMSR2 32.3 117.6 N/A N/A N/A N/A N/A 55.0 32.0 117.4 Analysis Plot
|
|
Legend - Overpass Date/Time are determined from satellite overpass of targeted TC (position determined from Best Track Lat/Lon position). Date is YYYYMMDD and time in HHMMSS (UTC). - Forecast (Best Track) and ARCHER positions (deg) of the TC center at overpass day/time. Positive/Negative: Latitude = North/South Hemisphere; Longitude = Eastern/Western Hemisphere. - BT Vmax is the concurrent ATCF Best Track (BT) wind speed intensity estimate (Vmax) value from either NOAA/National Hurricane Center (NHC) (North Atlantic and Northeast Pacific), NOAA/Central Pacific Hurricane Center (CPHC) (North-central Pacific) or Joint Typhoon Warning Center (JTWC) (Northwest Pacific, Indian Ocean, or Southwest Pacific). - Sat is the satellite descriptor providing the overpass. Currently the satellites used are the DMSP/SSMIS-16/17/18, GPM/GMI, and GCOM/AMSR2. - Ring Diam (km) indicates the estimated surface eyewall diameter if one is analyzed in the PMW imagery. The value listed is the average PMW-estimated inner eyewall edge diameter minus 10 km for eyewall slope. N/A indicates no appreciable eyewall is analyzed. - Ring Pct is the percentage of the analyzed "ring" (eyewall inner boundary) that is 1) colder than the eye Tb (the "hot spot" -- warmest eye pixel) by at least 20K, or 2) that is colder than 232K and colder than the eye Tb by 10K, whichever is greater. Values are red if Ring % ≤65,yellow/brown if Ring % ≤85 and green if Ring % >85. N/A indicates no appreciable eyewall is analyzed. A value over 85% is used in the intensity score by adding 15 points to it. - TbDiff is the difference between the warmest eye pixel and the warmest pixel on the eyewall. This value is used in the Intensity Score. N/A indicates no appreciable eyewall is analyzed. - Eye Score values are based on the strength and organization of the convective/eyewall signatures in the PMW imagery, and based on the ARCHER center location. They normally range from 0 to 100 with empirically-determined thresholds related to intensity (Vmax) in the "Meaning" column (≥20 suggests ≥65kts; ≥60 suggests ≥85kts). Scores are listed as negative, and not used by the ADT, when the NHC, CPHC, or JTWC Best Track Vmax is <55 kts in order to filter out occasional "false eye" cases. A value of -920 is used when the warmest eye pixel is <200K to prevent false positives; -930 means edge of overpass and <85% of eyewall is captured and therefore can't fully be analyzed. |
