111-13 April 20112nd IBTrACS Workshop

Review of1st Workshop

AndCurrent Goals

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Used for many industries:◦ Building codes for coastal zones◦ Risk assessment◦ Insurance loss analysis◦ Climate change research

Needed for locating TCs in satellite data (e.g., HURSAT)

Complete record of pressure and wind needed.

Many basins have more than one source of data

No single one-stop-shop for a global data set existed

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International◦ Many nations and agencies working together

Best Track◦ Information on tropical cyclones◦ Enormous impact on life and property worldwide

Archive◦ One-stop-shop

Climate◦ Global distribution◦ Cyclone intensity◦ Temporal variability

Stewardship◦ Maintaining data for future generations

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Data providers

At NCDC:◦ A handful of participants

Around the world:◦ Users providing feedback

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RSMCs◦ India, Japan, U.S.A, Reunion

TCWCs◦ Australia, Indonesia, Fiji, New Zealand

Other Forecast Agencies◦ China, Hong Kong, JTWC

Compilations (each with a myriad of sources)◦ Neumann SH data – Compilation of many sources◦ TD9636 – Compilation from NCDC (last updated 1986)◦ DS824 – Compilation from NCAR

Upcoming◦ JAMSTEC – Philippine Atlas digitization◦ H. Diamond – South Pacific digitization◦ India’s eAtlas◦ Others as provided

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IBTrACS Team

RSMCsTCWCsOthers

IBTrACSData

Users

Feedback

Create data

Data access

Data providers

Feedback

Publications

Peerreview

Workshop

Recommendations

Recommendations

11-13 April 20112nd IBTrACS Workshop

Oct. 2007 - Inception

May 2009 – IBTrACS Workshop (Asheville)

Aug. 2009 – Asia Oceania Geosciences Society (Singapore)

Nov. 2009 – WMO TCM (Brisbane)

July 2009 – version 2 release

Jul. 2008 – Beta release

Autumn 2010 – version 3 release

Apr. 2008 – AMS Tropical Conf. (Orlando)

Dec. 2008 – version 1 release Dec. 2008 – AGU Conf. (San Francisco)

Jan. 2009 – Annual AMS Meeting (Phoenix)

Mar. 2009 – Inter-departmental Hurricane Conf (FL) 1st Indian Ocean Tropical Conf. (Oman)

Jul. 2008 – AGU Western Pacific Geo. (Cairns)

Feb. 2009 – Int. Conf. SH Meteorology (Melbourne) ESRI Users Conf. (Washington DC)

Jun. 2008 – Permission to distribute data received from providers

Dec. 2007 – Original request for data from RSMCs and other agencies

Semiannual UpdatesNov. 2010 – IWTC – Special Focus Session

Jan. 2010 – Typhoon Committee Meeting (Singapore)

11-13 April 20112nd IBTrACS Workshop 9

First ever international meeting to specifically discuss best track data?

5-7 May 2009 - Participants worldwide Topics

◦ Operational Best tracking procedures◦ Wind-pressure relationships◦ Wind speed conversions◦ Global Reanalysis◦ IBTrACS improvements

Meeting summary in AMS BAMS

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Recommendations◦ To IBTrACS team◦ To forecast agencies (that make best track data)◦ To the WMO

Collaboration◦ Growing collaboration on BT issues amongst

participants

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The IBTrACS team should…◦ Document BT procedures,

Work with agencies Through a survey

◦ Provide all parameters as provided by original agency in IBTrACS

◦ Distribute official and unofficial datasets of other TC related data

◦ Archive all ancillary data◦ Get involved with the IWTC

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Best tracking agencies should …◦ Report more parameters and use WMO format

◦ Document current and historic BT practices

◦ Standardize definitions of winds and wind conversions

◦ Rescue and archive documents relevant to BT data

◦ “Best track” throughout life cycle (through ET)

◦ Encourage best track data discussions at IWTCHeld IBTrACS special focus session in La Reunion

Held IBTrACS special focus session in La Reunion

Accomplished by TCM through recognition of Harper report

Many have worked with IBTrACS on the community survey

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Endorse and/or formally adopt as global archive to aid RSMCs and

TCWCs

Recommend improvements and enhancements

Collaborate with IBTrACS on improvements

Standardize and document best tracking procedures

Cooperate on survey of operational procedures

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To continue the momentum of international collaboration by bringing together representatives from IBTrACS data providers, IBTrACS users and other TC researchers.

In addition, the workshop aims to address unresolved issues regarding construction, archive and use of best track data.

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Need◦ Much relies on quality of best track data

Approach◦ Make producers aware of impact of poor BT data

on weather and climate◦ Make users aware of known BT issues and/or

limitations

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Need◦ No assessment of BT data is available◦ No better authors than the data producers◦ No better time than the present

Approach◦ Co-authors from Workshop participants/agencies◦ Identify and catalog current and historic practices

where appropriate◦ Assess dataset quality and use

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Need◦ Formalize the structure of IBTrACS◦ International direction and feedback on plans

Approach◦ Enact the BT committee

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WMO-recognizedIBTrACS Team

RSMCsTCWCsOthers

IBTrACSData

Users

Feedback

Create data

Data access

Data

Feedback

Pubs

Peerreview

ResultsRecommendations

WMO-BT Expert

PanelMembership

Workshops:- IWTC- IBTrACS- Conferences

Requirements

Recommendatio

ns

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Need◦ 1st workshop was initial foray into BT data◦ Some recommendations have gone unnoticed

Approach◦ Determine how to enact recommendations.◦ Make action part of our recommendations.

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Participate in discussion

Contemplate the future of best track data

Enjoy the area!