Tropical Storm 10E
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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
20230827 115945 SSMISF18 16.6 -120.3 168 4% 1.68 -1.68 N/A 35.0 16.9 -120.2 Analysis Plot
20230827 135228 SSMISF16 16.7 -120.6 135 1% 2.08 -2.08 N/A 35.0 16.8 -120.8 Analysis Plot
20230827 211513 AMSR2 17.2 -121.5 268 4% 1.20 -1.20 N/A 35.0 17.3 -121.4 Analysis Plot
20230828 010532 SSMISF16 17.3 -122.4 N/A N/A N/A N/A N/A 35.0 17.5 -121.9 Analysis Plot
20230828 024449 SSMISF17 17.3 -122.6 324 N/A 2.51 -2.51 N/A 35.0 17.4 -122.5 Analysis Plot
20230828 063423 GMI 17.4 -122.7 N/A N/A N/A N/A N/A 35.0 17.6 -123.1 Analysis Plot
20230828 092815 AMSR2 17.5 -122.4 N/A N/A N/A N/A N/A 35.0 17.7 -123.3 Analysis Plot
20230828 133925 SSMISF16 17.6 -123.1 190 4% 3.37 -3.37 N/A 35.0 18.0 -123.6 Analysis Plot
20230828 195115 GMI 19.3 -123.4 N/A N/A N/A N/A N/A 35.0 18.3 -124.5 Analysis Plot
20230828 215848 AMSR2 18.9 -124.3 N/A N/A N/A N/A N/A 35.0 18.7 -124.5 Analysis Plot
20230829 023115 SSMISF17 20.5 -125.9 N/A N/A N/A N/A N/A 35.0 19.3 -125.7 Analysis Plot
20230829 100942 AMSR2 19.8 -127.9 N/A N/A N/A N/A N/A 40.0 19.5 -127.8 Analysis Plot
20230829 131514 SSMISF18 19.5 -128.5 N/A N/A N/A N/A N/A 35.0 19.5 -128.5 Analysis Plot
20230829 150418 SSMISF17 19.1 -129.3 90 N/A 0.43 -0.43 N/A 35.0 19.5 -129.6 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. |
