Tropical Depression 11W
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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
20230830 053127 SSMISF18 12.9 154.4 34 N/A 2.30 -2.30 N/A 30.0 12.5 154.7 Analysis Plot
20230830 155142 AMSR2 14.2 154.5 N/A N/A N/A N/A N/A 40.0 14.3 154.1 Analysis Plot
20230830 180815 SSMISF18 13.9 154.5 23 49% 1.89 -1.89 N/A 45.0 14.5 154.0 Analysis Plot
20230830 195752 SSMISF17 14.6 154.4 12 54% 6.17 -6.17 N/A 45.0 14.6 154.3 Analysis Plot
20230831 001538 GMI 15.6 154.5 23 100% 29.18 -44.18 N/A 45.0 15.1 154.1 Analysis Plot
20230831 024309 AMSR2 16.0 154.5 23 100% 33.15 48.15 >65 kts 55.0 16.0 154.1 Analysis Plot
20230831 051949 SSMISF18 17.9 155.0 46 86% 15.07 30.07 >65 kts 60.0 17.5 153.9 Analysis Plot
20230831 071229 SSMISF16 17.7 154.6 N/A N/A N/A N/A N/A 60.0 17.6 153.8 Analysis Plot
20230831 175324 SSMISF18 17.9 153.7 N/A N/A N/A N/A N/A 55.0 19.5 152.5 Analysis Plot
20230831 194559 SSMISF16 20.4 151.8 157 14% 0.89 0.89 N/A 55.0 20.1 151.7 Analysis Plot
20230901 032654 AMSR2 21.6 151.2 N/A N/A N/A N/A N/A 50.0 21.3 150.6 Analysis Plot
20230901 070104 SSMISF16 22.4 150.5 N/A N/A N/A N/A N/A 45.0 22.7 150.1 Analysis Plot
20230901 104600 GMI 23.0 149.8 N/A N/A N/A N/A N/A 45.0 23.0 149.9 Analysis Plot
20230901 153622 AMSR2 24.5 149.1 N/A N/A N/A N/A N/A 40.0 24.5 148.4 Analysis Plot
20230901 193217 SSMISF16 24.8 147.6 N/A N/A N/A N/A N/A 35.0 25.0 147.5 Analysis Plot
20230901 210851 SSMISF17 24.9 148.0 N/A N/A N/A N/A N/A 35.0 25.3 147.1 Analysis Plot
20230902 082610 SSMISF17 28.1 145.8 112 N/A 2.66 -2.66 N/A 35.0 27.8 145.3 Analysis Plot
20230902 161748 AMSR2 29.5 144.0 N/A N/A N/A N/A N/A 30.0 29.4 143.4 Analysis Plot
20230902 190549 SSMISF18 29.7 143.3 123 N/A 0.14 -0.14 N/A 30.0 29.8 142.8 Analysis Plot
20230902 205913 SSMISF16 29.5 142.5 N/A N/A N/A N/A N/A 30.0 29.8 141.6 Analysis Plot
20230903 004802 GMI 29.9 141.9 N/A N/A N/A N/A N/A 30.0 30.0 140.9 Analysis Plot
20230903 031833 AMSR2 30.0 141.3 N/A N/A N/A N/A N/A 25.0 29.9 141.0 Analysis Plot
20230903 062512 SSMISF18 30.6 140.4 135 1% 2.34 -2.34 N/A 25.0 30.1 140.3 Analysis Plot
20230903 081831 SSMISF16 29.8 139.7 68 N/A 1.21 -1.21 N/A 25.0 30.2 139.9 Analysis Plot
20230903 103128 GMI 30.5 139.9 N/A N/A N/A N/A N/A 25.0 30.3 139.5 Analysis Plot
20230903 170049 AMSR2 31.6 137.6 N/A N/A N/A N/A N/A 25.0 30.7 137.6 Analysis Plot
20230903 185228 SSMISF18 32.0 137.5 N/A N/A N/A N/A N/A 25.0 30.8 137.4 Analysis Plot
20230903 204457 SSMISF16 31.6 136.4 N/A N/A N/A N/A N/A 25.0 30.8 136.8 Analysis Plot
20230904 203239 SSMISF16 30.7 133.5 135 N/A 0.62 -0.62 N/A 25.0 30.8 133.1 Analysis Plot
20230904 220746 SSMISF17 31.1 134.3 N/A N/A N/A N/A N/A 25.0 30.9 133.0 Analysis Plot
20230905 003502 GMI 30.4 131.9 N/A N/A N/A N/A N/A 25.0 30.9 132.9 Analysis Plot
20230905 044407 AMSR2 31.0 132.4 N/A N/A N/A N/A N/A 25.0 31.1 132.5 Analysis Plot
20230905 075246 SSMISF16 31.1 132.3 N/A N/A N/A N/A N/A 25.0 31.2 132.4 Analysis Plot
20230905 101818 GMI 31.1 133.1 N/A N/A N/A N/A N/A 25.0 31.3 132.4 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. |
