comments on sea ice in the arctic climate impact assessment and future needs for coastal alaska

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The State of Arctic Sea Ice Gary Hufford, NOAA/NWS Alaska Region Lawson Brigham, Executive Director Arctic Research Commission

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The State of Arctic Sea Ice Gary Hufford, NOAA/NWS Alaska Region Lawson Brigham, Executive Director Arctic Research Commission. Comments on Sea Ice in the Arctic Climate Impact Assessment and Future Needs for Coastal Alaska. PRIDE Alaska Coastal Climatologies Wind/Wave Workshop - PowerPoint PPT Presentation

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Page 1: Comments on Sea Ice in the Arctic Climate Impact Assessment and Future Needs for Coastal Alaska

The State of Arctic Sea IceGary Hufford, NOAA/NWS Alaska Region

Lawson Brigham, Executive DirectorArctic Research Commission

Page 2: Comments on Sea Ice in the Arctic Climate Impact Assessment and Future Needs for Coastal Alaska

Page 3: Comments on Sea Ice in the Arctic Climate Impact Assessment and Future Needs for Coastal Alaska

Page 4: Comments on Sea Ice in the Arctic Climate Impact Assessment and Future Needs for Coastal Alaska

Page 5: Comments on Sea Ice in the Arctic Climate Impact Assessment and Future Needs for Coastal Alaska

Page 6: Comments on Sea Ice in the Arctic Climate Impact Assessment and Future Needs for Coastal Alaska

Page 7: Comments on Sea Ice in the Arctic Climate Impact Assessment and Future Needs for Coastal Alaska

Page 8: Comments on Sea Ice in the Arctic Climate Impact Assessment and Future Needs for Coastal Alaska

Comments on Sea Ice in the Arctic Climate

Impact Assessment and Future Needs for Coastal Alaska

PRIDE Alaska Coastal Climatologies Wind/Wave WorkshopAnchorage, Alaska 2 - 3 August 2005

Lawson BrighamDeputy Director, U.S. Arctic Research Commission

[email protected]

Page 9: Comments on Sea Ice in the Arctic Climate Impact Assessment and Future Needs for Coastal Alaska

Sea IceSea Ice Observational data show Observational data show a decrease of coveragea decrease of coverage

• Decrease isDecrease is largest inlargest in summersummer

• Decrease isDecrease is largest sincelargest since late 1980slate 1980s

Sea

Ice

Exte

nt (m

illio

n km

2 )

16151413121110

9876543210

Sea

Ice

Exte

nt (m

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n km

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Page 10: Comments on Sea Ice in the Arctic Climate Impact Assessment and Future Needs for Coastal Alaska

16 September 200216 September 2002

Page 11: Comments on Sea Ice in the Arctic Climate Impact Assessment and Future Needs for Coastal Alaska

16 September 200316 September 2003

Page 12: Comments on Sea Ice in the Arctic Climate Impact Assessment and Future Needs for Coastal Alaska

16 September 200416 September 2004

Page 13: Comments on Sea Ice in the Arctic Climate Impact Assessment and Future Needs for Coastal Alaska

16 September 200216 September 2002 16 September 200316 September 2003 16 September 200416 September 2004

Page 14: Comments on Sea Ice in the Arctic Climate Impact Assessment and Future Needs for Coastal Alaska

Arctic Climate Impact AssessmentArctic Climate Impact AssessmentClimate model projections of sea ice extent:Climate model projections of sea ice extent:

2000 - 21002000 - 2100

MarchMarch SeptemberSeptember

MAR SEPT

Page 15: Comments on Sea Ice in the Arctic Climate Impact Assessment and Future Needs for Coastal Alaska

Arctic Climate Impact Assessment

Page 16: Comments on Sea Ice in the Arctic Climate Impact Assessment and Future Needs for Coastal Alaska

‘Arctic Sea Ice Atlas of the Future’Projected Ice Extent – Hadley Model

Page 17: Comments on Sea Ice in the Arctic Climate Impact Assessment and Future Needs for Coastal Alaska

Sea Ice in Alaska’s Coastal Seas

• 23 June 2005 – Established working group

• Represented – USARC, AOOS, NWS (Anchorage), UAF, NIC, NSIDC, PMEL, USFWS, CRREL, UW/APL

• Issue – Lack of long-term, robust sea ice data set for Alaska’s coastal seas

• Needs - Arctic Climate Impact Assessment- Arctic Marine Shipping Assessment- Integrated Bering Sea Ecosystem Research- Many Stakeholders

Page 18: Comments on Sea Ice in the Arctic Climate Impact Assessment and Future Needs for Coastal Alaska

Examples of Ongoing Sea Ice Work

• NWS – Regional sea ice charts

• NIC – Global charts; George Mason U. digitizing for usable database

• NSIDC – W. Dehn collection ~ 7000 charts (1953 – 1986)

• PMEL – SAR data analysis

• CRREL – Range of research

• UAA/MMS – Sea ice atlas

• UAF – Spring leads/landfast; energy + mass balance; HF radar; ice thickness by airborne sensing

• UW/APL – Fast ice; range of research

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