2. Welcome – Herzlich Willkommen
George J. Huffman
Science Systems and Applications, Inc.
NASA Goddard Space Flight Center
Greenbelt, MD USA
Christian Klepp
University Hamburg, KlimaCampus
Max-Planck-Institut for Meteorology
Hamburg, Germany

3. 4th International Precipitation Working Group Workshop
13 – 17 October 2008
Beijing, China
was the largest meeting to date

4. 85 participants from 26 countries
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

5. 85 participants from 26 countries
Argentina, Austria,
Bangladesh, Bhutan, Brazil, Bulgaria,
China, France, Germany, Hungary,
India, Italy, Japan, Lithuania, Moldova,
Nepal, Nigeria, Poland, Serbia, Slovenia,
South Korea, Taiwan, Turkey,
Ukraine, United Kingdom, USA
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

6. EUMETSAT Training Event 12-14.10.2010
Passive and active microwave sensors
Precipitation algorithms
Satellite-based precipitation data sets
Usage of data archives
Soil Moisture
Issues regarding SSMIS
Intersensor- and Cross-Calibration
Precipitation Validation
Applications and Natural Hazards
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

7. Thanks to our IPWG-5 sponsors
KlimaCampus
Max Planck Institute for Meteorology
EUMETSAT
EUMETSAT Training Event for 16 participants
WMO
Mabanaft  two posters in atrium
Eigenbrodt
Metek
Full IPWG travel support for 10 participants
…and thanks to you for your participation
Info desk in atrium
Precip instr. comp. in exhibition booths in atrium
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

8. IPWG-5 Agenda We have a busy agenda over the next 4 days
5 oral sessions
1 discussion session
3 posters and conversation sessions
3 working groups with sessions on Wednesday and Thursday
Closing Plenary Thursday
Reception icebreaker and conference dinner
Our expectations are that we will all work towards
a productive and successful meeting
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

10. IPWG Summary/Perspective
George J. Huffman
Science Systems and Applications, Inc.
NASA Goddard Space Flight Center
Greenbelt, MD USA
Christian Klepp
University Hamburg, KlimaCampus
Max-Planck-Institut for Meteorology
Hamburg, Germany
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany 10

11. IPWG History Endorsed by the CGMS 29th session (July 2001)
Formation Meeting: June 2001, Fort Collins, US
IPWG-1: September 2002, INM, Madrid, Spain
IPWG-2: October 2004, NRL, Monterey, US
IPWG-3: October 2006, BoM, Melbourne, Australia
IPWG-4: October 2008, NSMC; Beijing, China
IPWG-5: October 2010, KC, MPI-M, Hamburg, Germany
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

12. IPWG Objectives 4th International Precipitation Working Group Workshop
IPWG was established under CGMS to:
Promote standard operational procedures and common
software for deriving precipitation measurements from satellites
Establish standards for validation and independent verification
of precipitation measurements
Foster the exchange of data on inter-comparisons of operational
precipitation measurements from satellites
Stimulate increased international scientific research and
development in this field
Provide recommendations to national and international agencies
regarding the utilization of current and future satellite instruments
on both polar and geostationary platforms
Encourage regular education and training activities
CGMS nominated IPWG to lead the GEO precip subtask, WA-08-01d in 2008
GEO water cycle studies, subtask d on precip
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

13. IPWG Accomplishments
Continued and strengthened on-going regional-scale validation activity:
Australia (Ebert), U.S. (Janowiak), Western Europe (Kidd), South America (Vila), Japan (Shige)
Cooperation with WGNE; progress entering additional models in the validation activity (Sapiano)
• Contributing Centers to date are ECMWF, JMA, Meteo-France, NCEP, NRL; GMAO and BOM are expected
Data are being released or not according to each Center’s policy
IPWG-4 proceedings DVD sponsored by EUMETSAT, 391 page document
Validation sites
Within PEHRPP evaluation of high-res precip products 3 hourly, .25 deg raises the aim to compare against such high res NWP forecast
led to the joint collaboration with Working Group on Numerical Experimentation in 2008
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

14. IPWG Accomplishments
Special issue of JAMC for contributions of IPWG-4 (Ferraro, Bennartz)
22 papers accepted (regular review process), in publication process
Preparation of a separate “special issue” volume in early 2011
IPWG-4 summary published:
Kidd, C., Ralph F., V. Levizzani, Aug. 2010: The Fourth International Precipitation Working Group Workshop, Bull. Amer. Meteor. Soc., 91(8),
doi: /2009BAMS2871.1,
Input to CEOS Precipitation Constellation group
Input to Integrated Global Water Cycle Observations group
Leadership of Group on Earth Observations precipitation subtask
Interact with International TOVS Working Group, specifically on SSMIS
Interact with NASA XCAL Working Group
Validation sites
Within PEHRPP evaluation of high-res precip products 3 hourly, .25 deg raises the aim to compare against such high res NWP forecast
led to the joint collaboration with Working Group on Numerical Experimentation in 2008
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

15. Recent Meetings EGU, 14-19 April 2009, Vienna, Austria [C. Kidd]
Rainfall Protocol for Africa,
4-5 June 2009, Ispra, Italy [Kidd, Levizzani, Grimes, Klepp]
8th GPM-GV Workshop, June 2009, Paris, France
[C. Kidd, G. Huffman, C. Klepp and others]
Joint GEWEX and iLEAPS Conference, August 2009,
Melbourne, Australia [G. Huffman]
3rd Precipitation Constellation Workshop,
29-30 October 2009, Salt Lake City, UT, CEOS-PC [Huffman]
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

16. Recent Meetings GEO Water Cycle Integration Workshop,
21 November 2009, Frascati, Italy [C. Kidd]
IGWCO Planning Meeting,
23-26 February 2010, New York, NY [D. Toll]
GEO Work Plan Symposium.,
17-19 May 2010, Pretoria, South Africa [R. Lawford]
GPM-GV, June 2010, Helsinki, Finland [Klepp, Huffman …]
LPVEX campaign, Baltic Sea, September 2010 [Klepp, Kidd …]
GEO-VII Plenary and 2010 Ministerial Summit,
3-5 November 2010, Beijing, China [G. Huffman; poster sent]
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

17. Third International Workshop on Space-based Snowfall Measurement
2011 Meetings
Third International Workshop on Space-based Snowfall Measurement
30 March - 2 April 2011
Grainau, near Zugspitze, Germany
Organizing Committee:
Ralf Bennartz, University of Wisconsin
Gail Skofronick Jackson, NASA Goddard Space Flight Center
Ulrich Löhnert, University of Cologne
Paul Joe, Environment Canada
Deborah Vane, Jet Propulsion Laboratory
Jarkko Koskinen, Finnish Meteorological Institute
more information posted on IPWG website
week before the EGU meeting in Vienna, Austria
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

19. GEO Introduction/Perspective
George J. Huffman, GEO Precip Subtask Point of Contact
Science Systems and Applications, Inc.
NASA Goddard Space Flight Center
Greenbelt, MD USA
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

20. The Group on Earth Observations (GEO)
A high-level (“ministerial”) intergovernmental policy-oriented activity
• Themes
- Disasters - Weather
- Health - Ecosystems
- Energy - Agriculture
- Climate - Biodiversity
- Water
• Water theme “work plan” tasks
- Droughts, Floods and Water Resource Management
- Capacity Building for Water Resource Management
- Integrated Products for Water Resource Management and Research
GEO water cycle studies, subtask d on precip
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany 20

21. The GEO Precip Sub-task (1/2)
Sub-task definition (as given in the Work Plan):
• Under the guidance of CGMS/IPWG
- promote and advance the development and validation of multi-sensor satellite- based precip estimates
- including snowfall
• Inputs from the Precipitation Virtual Constellation (AR-09-02a) will supplement these efforts
GEO water cycle studies, subtask d on precip
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany 21

22. The GEO Precip Sub-task (2/2)
Scope of the GEO precip activity
• Integrate satellite data and products with surface observations and numerical model information to provide long-term, fine-scale records of global precip
• Participate in analyses of the global water and energy cycle (WEC)
- explore this crucial element of the global environment
- constrain the permissible values of precip by comparison to estimates of the other components
GEO water cycle studies, subtask d on precip
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany 22

23. Overlapping Groups
Integrated Global Water Cycle Observations (IGWCO)
• orginally formed under the Integrated Global Observing Strategy Partnership
(IGOS-P)
develop and promote strategies for the coordination of diverse global water cycle observing systems
progress towards an integrated water cycle observation system that
unites data from different sources (e.g. satellite systems, in-situ networks, field experiments, and new data platforms)
with emerging data assimilation and modeling capabilities
• adopted by GEO as the “Community of Practice” for precipitation
Committee on Earth Observation Satellites - Precipitation Constellation (CEOS-PC)
• GPM is adopted as the prototype
GEO water cycle studies, subtask d on precip
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany 23

24. My One-Slide Summary of What “We” Do
We want to get better at turning this
into this
TRMM Sat-Gauge (mm/h) 00Z 01 March 2000
GEO water cycle studies, subtask d on precip
Images courtesy GPM (top), George Huffman (bottom)
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany 24

25. Precip Subtask Activities 2008-2010
CGMS recommended the IPWG Co-Chairs to lead
Co-Chair George Huffman is the “point of contact” for WA-08-01d
A first Task Plan was submitted, revised 2 or 3 times
Meetings
3rd Precipitation Constellation Workshop, October 2009, Salt Lake City, UT, CEOS- PC [G. Huffman]
GEO Water Cycle Integration Workshop, 21 November 2009, Frascati, Italy [C. Kidd]
IGWCO Planning Meeting, February 2010, New York, NY [D. Toll]
GEO Work Plan Symp., May 2010, Pretoria, South Africa [R. Lawford]
• GEO-VII Plenary and 2010 Ministerial Summit, 3-5 November 2010, Beijing, China [G. Huffman; poster sent, on-line presentation, brochure materials]
GEO water cycle studies, subtask d on precip
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany 25

26. Closing Thoughts
Precipitation is seen as a pathfinder for other water cycle dataset subtasks
• Level of organization, activity, funding, data sources
• Multi-sensor combinations
The buzzword in GEO is “integration”
• There’s a great deal of interaction that just hasn’t been cast in a GEO framework
• Integration is included in the subtask charter
What more does GEO need to be doing?
• Improve interaction with additional groups
• Advocate for the necessary resources (satellites, archive reanalysis activities, etc.)
GEO water cycle studies, subtask d on precip
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany 26

28. IPWG Workshop Goals George J. Huffman Christian Klepp
Science Systems and Applications, Inc.
NASA Goddard Space Flight Center
Greenbelt, MD USA
Christian Klepp
University Hamburg, KlimaCampus
Max-Planck-Institut for Meteorology
Hamburg, Germany
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

29. Recall the IPWG Objectives
Promote standard operational procedures and common
software for deriving precipitation estimates from satellites
Establish standards for validation and independent verification
of precipitation measurements
Foster the exchange of data on inter-comparisons of operational
precipitation measurements from satellites
Stimulate increased international scientific research and
development in this field
Provide recommendations to national and international agencies
regarding the utilization of current and future satellite instruments
on both polar and geostationary platforms
Encourage regular education and training activities
Take a lead role in the GEO precip subtask, WA-08-01d in 2008
GEO water cycle studies, subtask d on precip
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany 29

30. The Big Picture 4th International Precipitation Working Group Workshop
Review current and planned satellites, instruments, datasets, and retrievals
Identify gaps and opportunities in precipitation science
Develop recommendations for IPWG and CGMS (and GEO) about
progress
needs
Establish linkages, collaborations to make progress in
research
dataset distribution
education/outreach
The Working Groups are key to these goals
As you present, listen, and discuss:
“What are the next important actions?”
GEO water cycle studies, subtask d on precip
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany 30

31. 4th International Precipitation Working Group Workshop
GEO water cycle studies, subtask d on precip
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany 31

32. 4th International Precipitation Working Group Workshop
GEO water cycle studies, subtask d on precip
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany 32

34. Meeting logistics George J. Huffman Christian Klepp
Science Systems and Applications, Inc.
NASA Goddard Space Flight Center
Greenbelt, MD USA
Christian Klepp
University Hamburg, KlimaCampus
Max-Planck-Institut for Meteorology
Hamburg, Germany
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

35. Venue ZMAW and Geomatikum
ground level
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

36. Welcome Package 2Gb memory stick contains:
IPWG-5 Newsletter #5 and #6 (103 pages)
all individual files
IPWG-4 report BAMS
IPWG special issue in JAMC, 22 papers, early 2011
instructions for the extended abstracts (deadline )
Printed:
city map of Hamburg, local area map with restaurants for lunch
Schedule, Program, Participant List
free ticket for the conference dinner on Wednesday
will be publish
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

37. Session Schedule
4th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

38. Oral Sessions Session A: The Big Picture - Climatology and Water Cycle
Session B: Precipitation Data Sets
Session C: Algorithms
Session D: Validation
Session E: New Technologies and Future Activities
SSMIS Update - Discussion
Load your presentations…!
review the status of IPWG recommendations of 2004 and talk about new recommendations
5th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

39. Poster Sessions 2 hour poster and conversation sessions
with coffee/cookies and refreshments
– designed so that you can exchange ideas and talk about
issues raised in the talks
Monday and Tuesday:
Session B: Precipitation Data Sets
Session C: Algorithms
Session D: Validation
5th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

40. Working Group Breakout Sessions
Wednesday evening
track action items of IPWG-4
and Thursday
develop key recommendations
Operational Applications, Room 301
Research Activities / New Technology
Room 022/023
Validation, Room 401
 Signs direct you to these rooms
Sign-up sheets
5th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

41. Closing Plenary Thursday, 16:00 -17:30 Working Group Recommendations:
Operational Applications
Research Activities / New Technology
Validation
and
CGMS recommendations
5th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

42. Lunch Breaks, 12:30 -14:00
5th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

43. Social Events Monday: Icebreaker Reception, 17:30-20:30, Atrium
– sponsored by Eigenbrodt and Metek
Tuesday:
EUMETSAT Trainings Event Dinner, 19:00 (invited only)
-sponsored by EUMETSAT
Wednesday:
IPWG-5 conference dinner, 18:45-23:15; Atrium
-sponsored by Mabanaft
Friday:
IPWG-5 Outing, 11:00-15:00, Bus and Ship cruise,
incl. food+drinks, Atrium, 50,- Eur fee
meeting point
5th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany

44. Meeting logistics Wireless internet access data in Welcome Package
Printing from memory stick is possible; please contact me
Group photo: Tuesday, 13:50
Restrooms in the basement of this building, use entry hall
Emergency phone number:
Poster to be displayed throughout the week, please put up now!
please try to avoid using the internet within the lecture room during the sessions
please be there!
5th International Precipitation Working Group Workshop
11 – 15 October 2010, Hamburg, Germany