Tropical Depression 17E
|
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
20231018 011314 SSMISF17 13.6 -107.3 101 12% 9.07 -9.07 N/A 45.0 13.8 -107.9 Analysis Plot
20231018 143352 GMI 15.1 -107.9 79 49% 3.42 3.42 N/A 60.0 14.7 -108.1 Analysis Plot
20231018 205002 AMSR2 15.6 -107.9 57 100% 31.52 46.52 >65 kts 65.0 15.6 -108.0 Analysis Plot
20231019 010010 SSMISF17 16.3 -108.0 34 100% 37.60 52.60 >65 kts 80.0 16.1 -108.1 Analysis Plot
20231019 090232 AMSR2 16.6 -107.7 23 100% 68.32 83.32 >85 kts 105.0 16.9 -107.6 Analysis Plot
20231019 133421 SSMISF17 17.0 -107.9 23 100% 27.26 42.26 >65 kts 115.0 17.4 -107.6 Analysis Plot
20231019 231958 SSMISF18 18.0 -108.0 23 92% 13.85 28.85 >65 kts 115.0 17.7 -108.0 Analysis Plot
20231020 025744 GMI 17.9 -108.3 N/A N/A N/A N/A N/A 105.0 18.2 -108.1 Analysis Plot
20231020 115404 SSMISF18 19.1 -108.7 N/A N/A N/A N/A N/A 95.0 19.3 -108.9 Analysis Plot
20231020 142206 GMI 17.8 -109.6 N/A N/A N/A N/A N/A 95.0 19.4 -109.0 Analysis Plot
20231020 203853 AMSR2 20.1 -109.8 23 100% 35.89 50.89 >65 kts 105.0 20.2 -109.8 Analysis Plot
20231020 230657 SSMISF18 20.5 -109.8 23 100% 34.27 49.27 >65 kts 105.0 20.4 -110.0 Analysis Plot
20231021 010013 SSMISF16 20.9 -109.6 12 79% 9.32 9.32 N/A 105.0 21.6 -109.9 Analysis Plot
20231021 084919 AMSR2 22.2 -110.2 23 53% 8.34 8.34 N/A 100.0 21.9 -110.1 Analysis Plot
20231021 132725 GMI 22.7 -110.3 12 42% 0.87 0.87 N/A 90.0 22.2 -110.1 Analysis Plot
20231021 133143 SSMISF16 22.5 -110.2 N/A N/A N/A N/A N/A 90.0 22.7 -110.3 Analysis Plot
20231021 225430 SSMISF18 23.2 -109.8 235 4% 8.43 8.43 N/A 75.0 23.2 -109.8 Analysis Plot
20231022 004713 SSMISF16 23.5 -109.3 168 6% 2.40 2.40 N/A 60.0 23.4 -109.8 Analysis Plot
20231022 024641 GMI 23.4 -109.6 N/A N/A N/A N/A N/A 60.0 23.5 -109.7 Analysis Plot
20231022 093146 AMSR2 24.7 -109.8 N/A N/A N/A N/A N/A 50.0 24.7 -109.8 Analysis Plot
20231022 112503 SSMISF18 24.4 -109.4 101 41% 6.18 -6.18 N/A 50.0 24.8 -109.7 Analysis Plot
20231022 131740 SSMISF16 24.0 -109.2 N/A N/A N/A N/A N/A 50.0 24.7 -109.6 Analysis Plot
20231022 202759 AMSR2 24.2 -109.2 N/A N/A N/A N/A N/A 55.0 24.9 -109.4 Analysis Plot
20231022 224158 SSMISF18 24.3 -109.5 N/A N/A N/A N/A N/A 55.0 25.0 -109.3 Analysis Plot
20231023 003422 SSMISF16 25.1 -109.2 N/A N/A N/A N/A N/A 50.0 25.0 -109.2 Analysis Plot
20231023 014948 SSMISF17 24.5 -109.6 N/A N/A N/A N/A N/A 50.0 25.0 -109.2 Analysis Plot
20231023 083640 AMSR2 24.5 -108.2 268 2% 0.41 -0.41 N/A 35.0 24.5 -108.2 Analysis Plot
20231023 111155 SSMISF18 24.6 -107.9 190 2% 1.90 -1.90 N/A 30.0 24.5 -108.0 Analysis Plot
20231023 130423 SSMISF16 24.9 -107.5 N/A N/A N/A N/A N/A 30.0 24.6 -107.8 Analysis Plot
20231023 141939 SSMISF17 24.8 -107.3 N/A N/A N/A N/A N/A 30.0 25.0 -107.6 Analysis Plot
20231023 222856 SSMISF18 24.9 -107.4 N/A N/A N/A N/A N/A 30.0 25.3 -107.3 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. |
