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I nternational B est Tr ack A rchive for C limate S tewardship

Global Reanalysis. I nternational B est Tr ack A rchive for C limate S tewardship. Overview. Need for reanalysis NCDC Resources for Hurricane Research Questions on reanalysis and IBTrACS. Combining multiple sources. Number of agencies “best tracking” each storm.

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I nternational B est Tr ack A rchive for C limate S tewardship

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  1. Global Reanalysis International Best Track Archive for Climate Stewardship

  2. Overview • Need for reanalysis • NCDC Resources for Hurricane Research • Questions on reanalysis and IBTrACS

  3. Combining multiple sources • Number of agencies “best tracking” each storm

  4. Trends: Western Pacific Increasing or decreasing? Wu et al., 2006 Emanuel, 2005

  5. Application:Prioritize Reanalysis Maximum intensity? Accumulated uncertainty! 175 kt @ 10-min 88kt @ 10-min Western North Pacific Year Name Max MSW ( kt ) Δ ACE( 10 kt ) Δ PDI (10 kt ) 4 2 6 3 1951 Marge 175 - 88 = 87 40 66 1952 Bess 146 - 88 = 58 20 30 1954 June 165 - 114 = 51 25 40 1959 Tilda 165 - 110 = 55 23 40 1969 Ida 156 - 100 = 56 21 34 Annual PDI ~ 150

  6. Application: Prioritize Reanalysis South Pacific Annual PDI ~ 39 Southern Indian Ocean Annual PDI ~ 70

  7. Hurricane Satellite (HURSAT) Data TY Tip • HURSAT-MW • 1987-present • ~ 25 km resolution • ~ 12 hourly (or better) • netCDF & imagery • HURSAT-AVHRR • 1978-present • 4km resolution • ~12 hourly • netCDF & • imagery HR Mitch • GridSat • 1978-present, 70N-70S • 8km resolution • 3 hourly • netCDF HR Wilma HR Ivan HR Jeanne HR Karl HR Lisa • HURSAT-B1 • 1978-present • 8km resolution • 3 hourly • netCDF, imagery, & MPG movies

  8. Interdepartmental Hurricane Conference Hurricane Satellite (HURSAT) Data

  9. Questions

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