report of the scientific assessment panel 20th meeting of the parties to the
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Report of the Scientific Assessment Panel 20th Meeting of the Parties to the United Nations Montreal Protocol 16-20 November 2008 Doha, Qatar. Cochairs: Ayité-Lo Ajavon (Togo) Paul A. Newman (USA) John A. Pyle (UK) A.R. Ravishankara (USA). Today’s Summary: - PowerPoint PPT PresentationTRANSCRIPT
Report of the Scientific Assessment Panel20th Meeting of the Parties to theUnited Nations Montreal Protocol
16-20 November 2008Doha, Qatar
Cochairs:Ayité-Lo Ajavon (Togo)Paul A. Newman (USA)
John A. Pyle (UK)A.R. Ravishankara (USA)
Today’s Summary:
status of the 2010 report of the Scientific Assessment Panel
A birds eye view of 2010 assessment
Key ongoing issues
- Levels and trends of ODS and their substitutes, with emphasis on
HCFCs
- Levels of ozone and its trends
- Our understanding of the atmospheric science as it relates to
ozone layer changes
What is new in science
- The impact of climate change on ozone layer recovery; impact on
when the layer will recover
- The impact of ozone layer changes on climate and its changes Specifically the the Terms of the Parties from September 2007
(19th MOP, Decision XIX/20)
Contents of 2010 Science Assessment
Science topics to be addressed (Decision XIX/20):
• assess the state of the ozone layer and its future evolution
• evaluate recent Antarctic ozone hole and Arctic ozone depletion behavior
• evaluate trends of ozone-depleting substances in the atmosphere
• assess the impacts of climate change on ozone layer
• analyze atmospheric concentrations of bromine and implications for the ozone-layer
• describe surface ultraviolet radiation observations and future expectations
• assess interaction between tropospheric and stratospheric ozone
• assess approaches to evaluating very short-lived substances
A Request to the Parties
Preparatory work for the assessment has started
November 4, 2008 e-mail from UNEP to the Parties, seeking nominations of
participants
Participation also leads to capacity building
Replies requested by December 19, 2008
Previous participants need not be renominated; they will be considered
again
Replies to be sent to UNEPcontact: [email protected]
The 2010 Science Assessment
Immediate Next Steps: Request nominations of experts Cochairs determine Chapter structure Determine Chapter Lead Authors Chapter Teams form, Chapter preparation begins Lead Author meeting to review Chapter first drafts Reviews and revisions Final review and release
Nominationof Experts
Determine Chapter Structure and Leads
LA Meeting,First Chapter Drafts
Oct-Dec 19 Dec/Jan Nov-Dec
2008 2009
Feb-Oct
Prepare ChapterFirst Drafts
2010
Jan-July
Reviews Revisions
On going
Steps for 21010 Assessment: Dates and TasksDraft outline completed.
Lead Authors, Coauthors establishedChapter outlines drafted
Early 2009: Lead Authors’ meeting (location?).
Late October: 1st drafts due; circulated for internal review.
End of 2009: Internal review meeting, Lead Authors,Steering Committee, and a few others. (Washington, USA?)
February 2006: 2nd drafts complete and mail peer review starts.
April: mail reviews due; third draft preparation begins.
Mid-May: Third draft due; distributed to Panel reviewers.
Summer 2010: Panel Review: (Les Diablerets, Switzerland ?)> Lead Authors & a few Coauthors.> ~30-40 reviewers.> Final decisions on chapters.> Completed Executive Summary.
Late July: Chapters completed.
30 December: preprint volume to UNEP for government distribution.
March 2011: final printed copies available
2009
2010
THANK YOU FOR
YOUR ATTENTION