Tropical Depression 16S
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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
20240219 022239 SSMISF17 -14.3 55.5 N/A N/A N/A N/A N/A 35.0 -14.8 55.2 Analysis Plot
20240219 042141 GMI -14.3 54.2 N/A N/A N/A N/A N/A 35.0 -14.8 55.3 Analysis Plot
20240219 124130 SSMISF18 -14.4 56.0 112 19% 7.27 -7.27 N/A 35.0 -14.2 56.7 Analysis Plot
20240219 143709 SSMISF16 -14.4 56.7 N/A N/A N/A N/A N/A 35.0 -14.2 56.6 Analysis Plot
20240219 145827 SSMISF17 -14.4 56.7 268 32% 4.13 -4.13 N/A 35.0 -14.2 56.7 Analysis Plot
20240219 235123 SSMISF18 -14.3 57.4 N/A N/A N/A N/A N/A 45.0 -14.1 58.1 Analysis Plot
20240220 020832 SSMISF17 -14.6 58.4 168 N/A 3.03 -3.03 N/A 50.0 -14.1 58.0 Analysis Plot
20240220 034057 GMI -14.4 58.6 12 36% 8.52 -8.52 N/A 50.0 -14.1 58.1 Analysis Plot
20240220 122744 SSMISF18 -14.2 59.1 N/A N/A N/A N/A N/A 50.0 -14.4 59.2 Analysis Plot
20240220 142341 SSMISF16 -14.2 59.1 23 49% 5.67 -5.67 N/A 45.0 -14.1 59.8 Analysis Plot
20240220 144435 SSMISF17 -14.2 59.1 46 38% 1.53 -1.53 N/A 45.0 -14.1 59.8 Analysis Plot
20240220 233810 SSMISF18 -14.6 59.1 23 51% 2.34 -920.0 N/A 45.0 -15.0 60.3 Analysis Plot
20240221 013327 SSMISF16 -14.8 58.9 N/A N/A N/A N/A N/A 45.0 -15.1 60.6 Analysis Plot
20240221 025855 GMI -15.1 60.7 N/A N/A N/A N/A N/A 45.0 -15.2 60.6 Analysis Plot
20240221 121328 SSMISF18 -16.1 59.1 N/A N/A N/A N/A N/A 50.0 -16.4 60.7 Analysis Plot
20240221 142946 SSMISF17 -16.7 59.1 N/A N/A N/A N/A N/A 50.0 -17.1 60.0 Analysis Plot
20240221 162057 GMI -17.7 59.5 N/A N/A N/A N/A N/A 50.0 -17.4 59.9 Analysis Plot
20240221 232620 SSMISF18 -19.3 58.6 N/A N/A N/A N/A N/A 50.0 -18.8 59.5 Analysis Plot
20240222 012207 SSMISF16 -19.4 58.5 N/A N/A N/A N/A N/A 55.0 -19.7 59.0 Analysis Plot
20240222 014327 SSMISF17 -19.5 58.3 N/A N/A N/A N/A N/A 55.0 -19.8 59.0 Analysis Plot
20240222 115834 SSMISF18 -21.2 58.8 N/A N/A N/A N/A N/A 55.0 -21.3 58.5 Analysis Plot
20240222 135433 SSMISF16 -21.7 58.5 46 58% 0.90 0.90 N/A 55.0 -21.6 58.4 Analysis Plot
20240222 141518 SSMISF17 -21.8 58.5 N/A N/A N/A N/A N/A 55.0 -21.7 58.4 Analysis Plot
20240222 153939 GMI -22.5 58.9 5 43% 2.32 2.32 N/A 55.0 -21.8 58.4 Analysis Plot
20240222 231457 SSMISF18 -23.8 58.2 N/A N/A N/A N/A N/A 55.0 -22.5 58.3 Analysis Plot
20240223 011044 SSMISF16 -23.7 58.4 N/A N/A N/A N/A N/A 50.0 -22.4 57.4 Analysis Plot
20240223 114620 SSMISF18 -23.3 57.3 N/A N/A N/A N/A N/A 45.0 -23.3 57.3 Analysis Plot
20240223 134121 SSMISF16 -25.5 59.3 N/A N/A N/A N/A N/A 45.0 -23.9 58.4 Analysis Plot
20240223 214217 AMSR2 -23.6 58.2 N/A N/A N/A N/A N/A 40.0 -24.1 58.0 Analysis Plot
20240224 022550 GMI -23.7 57.6 N/A N/A N/A N/A N/A 35.0 -23.7 57.7 Analysis Plot
20240224 095056 AMSR2 -23.1 56.9 N/A N/A N/A N/A N/A 30.0 -23.4 56.5 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. |
