Joint GPM+ACE Science Meeting Agenda

July 9-10, 2013

NASA Goddard, Building 16 (white), Room N76-N80

A GPM & ACE joint science meeting is being held to identify common objectives in cloud and precipitation measurements and joint mission needs. There is an inherent synergy and common interest linking precipitation to clouds and this meeting will bring together these communities todevelop an integrated approach to precipitation and cloud measurements for joint mission goals and requirements, including the mapping of precipitation and related cloud processes across the globe.

Agenda

July 9, 2013 Day One: Science DefinitionPresentations

9:00-9:30am Welcome, Background, Goals, Introductions and Logistics (G. Skofronick Jackson)

9:30-9:45am HQ Perspective on the upcoming Earth Science Decadal Survey (H. Maring/TBC)

9:45-10:55am Background Presentations

  • 9:45-10:05am GEWEXGrand science questions(C. Kummerow with inputs from G. Stephens)
  • 10:05-10:35am Global Cloud challenges of the coming decade(s) (J.Mace and S. van den Heever with W-K. Tao)
  • 10:35-10:55am Global Precipitation challenges of the coming decade(s)(C. Kidd with inputs from A. Hou)

10:55-11:20 Break

11:20- 12:45 Group Discussion of challenges in relationship to clouds and precipitation(discussion guides: D. Starr and G. Skofronick-Jackson)

  • Water cycle drivers
  • Climate drivers
  • Aerosol impacts on clouds and precipitation
  • Forward progress in modeling (local and global) for clouds, precipitation & weather/climate forecasting

12:45- 2:00pm Lunch (Tours of GPM spacecraft?)

2:00- 5pm Focused Discussion (discussion guides: A. Hou and P. Joe)

  • Identify key science questions for the clouds and precipitation mission concept
  • Identification of needed science tradeoff studies

Breaks as needed

Group dinner?

July 10, 2013 Day Two: Technological and Next Step presentations

9:00-9:30am

  • Outcomes of Day One discussions: Review of Monday key science questions (G. Skofronick-Jackson)

9:30-10:15am

  • Current & planned mission/instrument capabilities (brief one slide/5 min with instrument characteristics and science products)
  • TRMM(G. Huffman)
  • CloudSat(D. Vane)
  • GPM(G. Skofronick-Jackson)
  • EarthCare(P. Kollias)
  • ACE overview(D. Starr)
  • Other instruments of interest(D.Starr)

10:15-12:00noon (with break at some point)

  • Global precipitation and cloud missioninstrument characteristics discussion
  • Active Radar Instruments(discussion guides: P. Racette and S. Tanelli))
  • Frequencies, resolution, Doppler, swath, etc requirements
  • Passive Radiometer Instruments(discussion guides: R. Bennartz and J. Turk)
  • Radiometers: frequencies, resolution, swath, polarization requirements
  • Other Instruments if mission science requires them (discussion guides: J. Mace and TBD)
  • Identify needed tradeoff studies

12:00- 1:15 Lunch (Tours of GPM spacecraft?)

1:15-3:00 Discussion

  • Global precipitation and cloud mission concept characteristics discussion(discussion guides: TBD)
  • Strawman payloads (instrument types and characteristics)
  • Orbit configurations, sampling discussions (e.g., diurnal cycle and inclined orbit discussion),constellation/cross-calibration architecture
  • Scanning/beam alignment strategies
  • Identify needed mission tradeoff studies for above discussions

3:00-3:15 Break

3:15-5pm Discussion

  • Next Steps(Discussion guide: G. Skofronick-Jackson)
  • Assignments for science and measurement tradeoff studies
  • Plan collaborative studies for joint precipitation and cloud activities,
  • Next steps and planning future meetings for defining the mission concept,

5pm Adjourn for the day.

July 11, 2013 Day Three: Meeting Summary (For those that are available July 11th)

9:30am start: Draft meeting minutes, science questions and detailed measurement needs.

(the whole group will be sent these drafts for details and editing)