Tropical Depression 04S
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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
20231231 161742 SSMISF17 -20.6 39.9 N/A N/A N/A N/A N/A 35.0 -20.6 39.7 Analysis Plot
20240101 005349 SSMISF18 -21.1 41.3 90 81% 12.62 -12.62 N/A 35.0 -20.7 41.1 Analysis Plot
20240101 024726 SSMISF16 -20.9 41.4 101 28% 15.42 -15.42 N/A 35.0 -20.7 41.5 Analysis Plot
20240101 033114 SSMISF17 -21.1 41.6 90 100% 27.16 -42.16 N/A 35.0 -20.7 41.6 Analysis Plot
20240101 102933 AMSR2 -21.5 42.6 101 100% 34.79 -49.79 N/A 50.0 -20.9 42.8 Analysis Plot
20240101 132608 SSMISF18 -21.4 43.0 57 72% 7.29 7.29 N/A 55.0 -21.0 43.3 Analysis Plot
20240101 151946 SSMISF16 -21.2 43.4 57 16% 14.47 14.47 N/A 60.0 -21.6 43.4 Analysis Plot
20240101 160337 SSMISF17 -21.0 43.8 57 21% 12.45 12.45 N/A 60.0 -21.6 43.5 Analysis Plot
20240102 004018 SSMISF18 -22.0 45.9 N/A N/A N/A N/A N/A 45.0 -21.4 45.1 Analysis Plot
20240102 031743 SSMISF17 -21.6 46.6 23 N/A 0.71 -0.71 N/A 45.0 -21.5 45.4 Analysis Plot
20240102 131221 SSMISF18 -22.0 48.2 N/A N/A N/A N/A N/A 30.0 -21.6 46.9 Analysis Plot
20240102 150621 SSMISF16 -22.3 48.3 N/A N/A N/A N/A N/A 30.0 -22.2 48.3 Analysis Plot
20240102 154951 SSMISF17 -22.3 48.5 N/A N/A N/A N/A N/A 30.0 -22.3 48.4 Analysis Plot
20240103 002730 SSMISF18 -22.7 50.3 201 44% 2.10 -2.10 N/A 40.0 -22.7 49.9 Analysis Plot
20240103 022126 SSMISF16 -23.0 50.7 157 26% 1.53 -1.53 N/A 40.0 -23.1 50.3 Analysis Plot
20240103 030431 SSMISF17 -23.3 51.0 N/A N/A N/A N/A N/A 40.0 -23.2 50.5 Analysis Plot
20240103 101538 AMSR2 -24.1 51.6 N/A N/A N/A N/A N/A 40.0 -24.1 51.6 Analysis Plot
20240103 125820 SSMISF18 -24.8 52.1 N/A N/A N/A N/A N/A 35.0 -24.4 51.9 Analysis Plot
20240103 145211 SSMISF16 -25.0 52.6 246 N/A 2.11 -2.11 N/A 35.0 -24.8 52.3 Analysis Plot
20240103 153514 SSMISF17 -25.1 53.0 N/A N/A N/A N/A N/A 35.0 -24.9 52.4 Analysis Plot
20240103 211328 AMSR2 -26.8 54.3 N/A N/A N/A N/A N/A 35.0 -26.2 53.7 Analysis Plot
20240104 001508 SSMISF18 -26.4 53.9 N/A N/A N/A N/A N/A 35.0 -26.3 53.8 Analysis Plot
20240104 025214 SSMISF17 -27.4 54.3 N/A N/A N/A N/A N/A 35.0 -26.9 55.0 Analysis Plot
20240104 124337 SSMISF18 -28.9 57.8 279 3% 2.51 -2.51 N/A 35.0 -29.0 57.6 Analysis Plot
20240104 143736 SSMISF16 -29.1 57.8 N/A N/A N/A N/A N/A 35.0 -29.0 57.6 Analysis Plot
20240104 152016 SSMISF17 -29.0 58.1 N/A N/A N/A N/A N/A 35.0 -29.0 57.6 Analysis Plot
20240105 000206 SSMISF18 -30.1 59.7 N/A N/A N/A N/A N/A 35.0 -30.0 58.8 Analysis Plot
20240105 063856 GMI -31.2 61.3 N/A N/A N/A N/A N/A 35.0 -30.7 60.4 Analysis Plot
20240105 122948 SSMISF18 -30.5 61.6 301 N/A 0.51 -0.51 N/A 40.0 -30.6 61.4 Analysis Plot
20240105 142355 SSMISF16 -30.9 62.9 N/A N/A N/A N/A N/A 40.0 -30.9 62.9 Analysis Plot
20240105 150626 SSMISF17 -30.4 63.7 N/A N/A N/A N/A N/A 40.0 -30.9 62.9 Analysis Plot
20240105 235029 SSMISF18 -31.2 63.9 N/A N/A N/A N/A N/A 40.0 -31.2 63.9 Analysis Plot
20240106 055650 GMI -29.7 65.7 N/A N/A N/A N/A N/A 30.0 -31.3 64.8 Analysis Plot
20240106 145149 SSMISF17 -31.3 64.7 N/A N/A N/A N/A N/A 30.0 -31.3 64.8 Analysis Plot
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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. |
