1. Michael Studinger & IceBridge Science Team & Instrument Teams

3. IceBridge Background 2008: feasibility and cost analysis: “An analysis and summary of options for collecting ICESat-like data from aircraft” 2009:solicited proposals for instruments for Antarctic campaigns 2009 and Arctic campaigns 2011 ad hoc community-based steering committee responsible for flight planning 2010:ROSES call for instrument teams and IceBridge Science Team members IceBridge Science Team and instrument teams selected based on competitive proposals shift from ad hoc steering committee to directed mission: level 1 science requirements and science justification 2011:ROSES call for IceBridge science 2012:ROSES call for next phase of IceBridge IceBridge is a directed mission. Project resources are available to meet level 1 science requirements and mission goals, rather than support for individual PI-led projects.

4. IceBridge: A NASA Mission

5. Science Team Ice Sheets and Glaciers Ken Jezek (OSU co-chair) Robin Bell (LDEO) Bea Csatho (SUNY) Scott Luthcke (NASA/GSFC) Eric Larour (JPL) Ian Joughin (UW, APL) Mark Fahnestock (UAF) Eric Rignot (UCI/JPL) Ben Smith (UW, APL) Duncan Young (UTIG) Sophie Nowicki (NASA/GSFC) Sea Ice Jackie Richter-Menge (CRREL, co-chair) Ron Kwok (JPL) Ron Lindsay (UW, APL) Sinead Farrell (NOAA, UMBC) Dave McAdoo (NOAA) Website: Level 1 Science Requirements, project documentation, telecon minutes, planning documents, deployment plans, etc. http://bprc.osu.edu/rsl/IST/http://bprc.osu.edu/rsl/IST/ or http://www.nasa.gov/icebridgehttp://www.nasa.gov/icebridge

6. Platform and Instrument Suite Total of 6 aircraft and 16 science instruments

7. largest external structure ever flown on a P-3 designed, built, and installed in only 3 months

8. Next Phase of IceBridge Ikhana and Global Hawk

10. IceBridge is imaging Ice Sheets in unprecedented detail Greenland 2011: CryoSat-2 underflight, March 29 MCoRDS Radar Quick Look Image ice surface internal layers bedrock folding

11. IceBridge is imaging Ice Sheets in unprecedented detail Greenland 2011: CryoSat-2 underflight, March 29 Snow radar (left) and Ku-band radar (right) Quick Look Images internal layers ice surface internal layers

12. IceBridge is imaging ice sheets in unprecedented detail High-resolution (500 m) Survey of Russell Glacier, Greenland to produce bedrock elevation for improved ice sheet models Data: John Paden, CReSIS unique 15 element antenna array for radar imaging on P-3 allows for SAR mapping of bedrock below the glacier

17. IceBridge seeks the involvement of the broad research community to: o Use IceBridge data to measure and understand current changes in ice thickness o Incorporate IceBridge data into predictive models of changing ice cover o Use IceBridge data to improve and enhance the ICESat data set, the developing CryoSat-2 data set and the planned ICESat-2 data set In addition, we seek community contributions that: o Vet the scientific accuracy and usability of IceBridge data and data products o Develop new techniques and algorithms necessary to address IceBridge Projected Science Requirements: http://bprc.osu.edu/rsl/IST/ IceBridge and the Research Community

18. Operation IceBridge: http://www.nasa.gov/icebridge Science Team: http://bprc.osu.edu/rsl/IST/ Data is available at National Snow and Ice Data Center (NSIDC) http://nsidc.org/data/icebridge/ No period of exclusivity! Flight planning tool: http://icebridge.sr.unh.edu/icebridge/ant/ Operation IceBridge

19. OIB Land Ice Phase 3-4 Strategy Phase 1 (2008-2010): OIB demonstrated successful, spatially extensive data collections in both the Arctic and Antarctic Phase 2 (2010-11): Rigorous science requirements adopted for planning and mission success analysis Phase 3 (2012 – 2015) – Vet data for utility for solving science problems; – increase spatial and temporal coverage (UAVs); – Adopt advanced technologies (e.g. tomography); – develop an end-to-end vision that emphasizes rapid model/process output for resolution of key science questions Phase 4 (2015-2020) – Acquire I-2 prelaunch data to assure quick continuity of dh/dt record – One post launch campaign in Arctic and Antarctic to assure continuity – Continued focused missions that Utilize flexibility of airborne platforms Combine in situ, airborne and spaceborne observation to increase confidence in interpretation Maintain crucial instruments that are still unique to airborne platforms Respond to unique, transient geophysical phenomena http://bprc.osu.edu/rsl/IST/index_files/PROJECTDOCUMENTS.htm Tomographic image of Russel Glacier Courtesy of JPL, KU and OSU. Image compilation of 2011 Pine Island Glacier rift courtesy of M. Studinger.

20. IceBridge Sea Ice Team Recent and current activities Evaluation of sea ice thickness Value Added Products – Components: Sea Surface Height Lead masking Freeboard Snow depth Ice thickness – Sound scientific approach – Clear and adequate documentation outlining procedure Flight lines recommendations – Increased coverage in Chukchi/Beaufort Seas – Challenge: Fairbanks temporary base of operations Ongoing

21. ATM (Air/Snow Interface Elevation) DMS (Lead Detection) Snow Radar (Snow Depth) Ku Band Radar (Snow/Ice Interface Elevation) Sea Surface Height Sea Ice Freeboard Snow Depth Sea Ice Thickness Instrument Products Value Added Product Snow and sea ice density Lead Detection Airborne measurement of sea ice thickness is a derived, versus direct, product

22. IceBridge Sea Ice Team Recent and current activities Evaluation of sea ice thickness Value Added Products – Components: Sea Surface Height Lead masking Freeboard Snow depth Ice thickness – Sound scientific approach – Clear and adequate documentation outlining procedure Flight lines recommendations – Increased coverage in Chukchi/Beaufort Seas – Challenge: Fairbanks temporary base of operations Ongoing

23. Chukchi/Beaufort Seas: Very (!) Early Thoughts