1. 1 11-13 April 20112 nd IBTrACS Workshop IBTrACS Version 3 Updates and Plans

2. 11-13 April 20112 nd IBTrACS Workshop2  Background ◦ Versions ◦ Access  Issues ◦ Naming ◦ Storm Spurs ◦ Treatment of older storms  Open time for Questions and Answers

3. 315-20 Nov. 20107 th IWTC, La Reunion Island  14 sources  31,002 total tracks  500,000+ observations ~11,774 storms 6757 TCs with MSW>30 1848-2009 1907-2009 1842-2009 1884-2009 1949-2009 1851-2009 1848 - 2009

4. 11-13 April 20112 nd IBTrACS Workshop4 BoM 1,614,1906,1,,S,,190701172300,,,,130,1465,,994,,,WW,,,,,,,,,,,,,,,,,,,,,,,,,20,11,1907,1,17,23,0,01/17/1907 23:00:00,,,,3690.00000000524,6244 2,614,1906,1,,S,,190701182300,,,,150,1450,,993,,,WL,,,,,,,,,,,,,,,,,,,,,,,,,27,13,1907,1,18,23,0,01/18/1907 23:00:00,1440,,,2520,21118 3,614,1906,1,,S,,190701192300,,,,140,1430,,993,,,LL,,,,,,,,,,,,,,,,,,,,,,,,,30,4,1907,1,19,23,0,01/19/1907 23:00:00,1440,,,2160,2282 CMA/STI 66666 0000 32 0025 0822 0 6 Dolphin 20090418 2008121100 1 125 1471 1002 15 2008121106 1 126 1450 1002 15 2008121112 1 128 1433 1002 15 CPHC 2003 TROPICAL DEPRESSION 01-C,,,,,,,,, 08/15 / 1800,13.6,151,1009,30,,,,, 16 / 0000,13.9,152.9,1009,30,",,,, 16 / 0600,14.2,154.4,1009,30,",,,, HKO TCNAME YYYYMMDDHH(UTC) INTENSITY … RITA 1961011406 TD 79 1355 1003 25 RITA 1961011412 TD 82 1343 1002 25 RITA 1961011418 TD 88 1334 1001 25 JTWC – ATCF format WP, 12, 2008081218,, BEST, 0, 224N, 1343E, 15, 1010, DB, 0,, 0, 0, 0, 0, WP, 12, 2008081300,, BEST, 0, 226N, 1335E, 15, 1010, DB, 0,, 0, 0, 0, 0, WP, 12, 2008081306,, BEST, 0, 231N, 1328E, 15, 1006, DB, 0,, 0, 0, 0, 0, 1009, 150, 25, 0, 0, W, 0,, 0, 0, INVEST, S, WP, 12, 2008081312,, BEST, 0, 237N, 1325E, 15, 1006, DB, 0,, 0, 0, 0, 0, 1009, 150, 25, 0, 0, W, 0,, 0, 0, INVEST, S, Nadi NAME YYYY MM DD HHHH LAT LONG PRES W(KT) Catergory =========================++++++++++++======================= DAMAN 2007 12 03 0000 12.0 -174.5 1004 15 Tropical Depression (TD) Phase DAMAN 2007 12 03 0600 12.1 -175.0 1004 15 DAMAN 2007 12 03 1200 12.3 -175.5 1004 15 Neumann, HURDAT 00005T07/15/1960 M= 7 1 SNBR= 1 HSK0161 BSH0161 JTWC&NCDC 00010 07/15 * 60 970T 25E * 66 964T 25E 00015 07/16* 72 958T 20E * 78 951T 20E * 85 945T 25E * 93 939T 25E 00020 07/17*102 934T 25E *113 929T 25E *125 925T 25E *149 925T 25E 00025 07/18*173 930T 30E *192 936T 30E *210 945T 30E *234 961T 30E IMD 04/05/1990,0000, 8.5,87.0,1.0,1006, 16, 2,,1006,7, 04/05/1990,0600, 8.5,87.0,1.5,1002, 25, 4,,1006,10, 04/05/1990,1200, 9.5,87.0,1.5,1000, 25, 4,,1004,5, Reunion – Old Format xxxx84800118480301062114 2 755 999999911099999904 xxxx84800118480302062117 2 740 999999911099999904 xxxx84800118480303062144 2 646 999999911099999904 Reunion – New WMO Format 11SWI20061520062007200704091222171020369182101001511002099101092999599999999999999999994999999999999999999940104 11SWI20061520062007200704091822191220380112101001511002099100992999599999999999999999994999999999999999999940104 11SWI20061520062007200704100022240820390121151502011003099100892999599999999999999999994999999999999999999940204 NCDC TD-9636 149991989101016121320109453019210 0202519 0081471 0 150001989101016181338109383019318 015 999 1 01 150011989111128121171108401517219 025 999 0 0 JMA 66666 0822 031 0030 0822 0 6 DOLPHIN 20090116 08121106 002 2 125 1452 1000 000 08121112 002 2 128 1436 1002 000 08121118 002 2 130 1423 1000 000 Wellington Name,Year,Month,Day,Time,Lat,Lon,PPP,Max,Prog GISELE,1968,4,3,0000,8,156.4,1002,25,H+000 GISELE,1968,4,3,1200,7.4,157.6,1002,25,H+000 GISELE,1968,4,4,0000,7,159,1002,25,H+000 Diamond HD-1986-04,1986-03-05T00:00:00.0, -18.7455, 173.0290, 1 HD-1986-04,1986-03-05T00:00:00.0, -19.0438, 173.3770, 2 HD-1986-04,1986-03-05T00:00:00.0, -19.3420, 173.7240, 3

5. 515-20 Nov. 20107 th IWTC, La Reunion Island Multiple intensities possible1 intensity per report  netCDF  CSV  WMO  HURDAT  ATCF  cXML  GIS shapefile Ver. 1 Mean position Mean intensity Mean positionJAOT Mean intensity Kruk et al., 2010 Ver. 2 Mean positionBAMS Mean intensity Knapp el al., 2010 Mean position Mean intensity Original positions & intensity Ver. 3 Original positions & intensity Other parameters as available WMO positionIn prep. WMO intensity

6. 11-13 April 20112 nd IBTrACS Workshop6  http://www.ncdc.noaa.gov/oa/ibtracs/ http://www.ncdc.noaa.gov/oa/ibtracs/  Google: IBTrACS

7. 11-13 April 20112 nd IBTrACS Workshop7

8. 11-13 April 20112 nd IBTrACS Workshop8  Problem ◦ Difficulty in comparing inhomogeneous datasets ◦ How to compare Major storms? Cat 5 storms? Etc.?  Unify data? ◦ Convert agencies back to a certain wind speed? ◦ IBTrACS has 10, 3, 2 and 1 minute winds ◦ Conversions aren’t necessarily linear.

9. 11-13 April 20112 nd IBTrACS Workshop9  Potential for intercomparing storms: percentiles  Calculations … ◦ Based on Percentiles of 1980-2009 ◦ Separate for wind and pressure ◦ Per agency/basin  Are percentiles appropriate when looking at damage to manmade structures?  Are percentiles appropriate when looking at damage to natural habitats?

10. 11-13 April 20112 nd IBTrACS Workshop10

11. 11-13 April 20112 nd IBTrACS Workshop11

12. 11-13 April 20112 nd IBTrACS Workshop12  Background ◦ Versions ◦ Access  Issues ◦ Naming ◦ Storm Spurs ◦ Treatment of older storms  Open time for Questions and Answers

13. 11-13 April 20112 nd IBTrACS Workshop13  Two Problem ◦ How to determine if two tracks are the same storm? ◦ How to name/identify a particular storm

14. 11-13 April 20112 nd IBTrACS Workshop14  YYYYJJJHTTNNN ◦ YYYY = year of 1 st record ◦ JJJ = day of year ◦ H = hemisphere (N or S) ◦ TT = Latitude ◦ NNN = Longitude (range 0-359)  Serial # - Name Cross Reference 1985237N21130 bwp141985(jtwc_wp) - RUBY(tokyo) - RUBY(cma) - RUBY(hko) - NOT NAMED(td9636) 1985240N08148 bwp161985(jtwc_wp) - TESS(tokyo) - TESS(cma) - TESS(hko) - NOT NAMED(td9636) 1985240N09198 bwp151985(jtwc_wp) - SKIP(tokyo) - TWO-C / TROPICAL STORM SKIP(cphc) - SKIP(cma) - SKIP(hko) - NOT NAMED(td9636) 1985240N16256 PAULINE(hurdat_epa) - bep161985(jtwc_ep) - PAULINE(cphc) - NOT NAMED(td9636) - bep161985(atcf) 1985240N20286 ELENA(hurdat_atl) - bal051985(atcf) 1985244N14254 RICK(hurdat_epa) - bep171985(jtwc_ep) - RICK(cphc) - NOT NAMED(td9636) - bep171985(atcf) 1985244N27124 (NAMELESS)(cma) 1985249N13265 SANDRA(hurdat_epa) - bep181985(jtwc_ep) - NOT NAMED(td9636) - bep181985(atcf)

15. 11-13 April 20112 nd IBTrACS Workshop15  Serial # - Strengths ◦ Unique for each storm  Serial # - Weaknesses ◦ Depends on starting location and date … which can change ◦ May not be consistent from version to version  Suggested improvement?

16. 11-13 April 20112 nd IBTrACS Workshop16  120+ registered users  Kudos ◦ “Even though IBTrACS is still evolving, your efforts at homogenization on a global scale are very important.” ◦ “Congratulations for getting this complete and publicly available! Keep up the great work!”  Feedback ◦ Error corrections ◦ Parameter requests – radius maximum winds, etc. IBTrACS.Team@noaa.gov  Contact Us at IBTrACS.Team@noaa.gov

17. 11-13 April 20112 nd IBTrACS Workshop17  Include more variables ◦ “If they provide it, so do we” ◦ ROCI, RMW, Eye Diameter, T num, CI, …  Include non-developing storms ◦ Forecast aid development  Document tropical cloud clusters  Other agencies as available

18. 11-13 April 20112 nd IBTrACS Workshop18  Spur – definition ◦ a short or stunted branch or shoot, as of a tree. Split? Merger?

19. 11-13 April 20112 nd IBTrACS Workshop19  Definitions on how tracks are identified … ◦ Cycloslois – A track that simply ends ◦ Cyclogenesis – A track that simply begins ◦ Split – A track that begins, but the track originates from another storm ◦ Merger – A track that ends as it converges with another storm  Track types are defined by how they begin and end: ◦ StartEndType ◦ CyclogenesisCyclolosisMain ◦ CyclogenesisMergerSpur-Merger ◦ SplitCyclolosisSpur-Split ◦ SplitMergerSpur-Alternate

20. 11-13 April 20112 nd IBTrACS Workshop20 Main Merger Split Alternate

21. 11-13 April 20112 nd IBTrACS Workshop21

22. 11-13 April 20112 nd IBTrACS Workshop22

23. 11-13 April 20112 nd IBTrACS Workshop23

24. 11-13 April 20112 nd IBTrACS Workshop24

25. 11-13 April 20112 nd IBTrACS Workshop25

26. 11-13 April 20112 nd IBTrACS Workshop26  Spurs … ◦ … confuse users ◦ … make counting storms difficult  Solutions? ◦ Ignore all spurious spurs  If life of spur < threshold (2 days?), don’t list ◦ Keep all tracks associated with a storm together?  Might lost some storms

27. 11-13 April 20112 nd IBTrACS Workshop27  Many storms rescued by digitization of Atlases  Some had QC some not  Issues include ◦ Starting dates

28. 11-13 April 20112 nd IBTrACS Workshop28  Same storm, but repeated due to timing issues

29. 11-13 April 20112 nd IBTrACS Workshop29  Same storm, but different resolutions ◦ Daily ◦ 12-hourly

30. 11-13 April 20112 nd IBTrACS Workshop30

31. 11-13 April 20112 nd IBTrACS Workshop31  Background ◦ Versions ◦ Access  Issues ◦ Naming ◦ Storm Spurs ◦ Treatment of older storms  Open time for Questions and Answers

32. 11-13 April 20112 nd IBTrACS Workshop32  How should storms be named? ◦ Is there an alternative to a serial number? ◦ A better serial number?  How should spurs be handled?  What aspect of IBTrACS causes the most confusion?  What improvements are needed most?