Operational Working Group

1
Operational Working Group

• Bob Joyce (chair), Ralph Ferraro, Joe Turk, Jim
  Purdom, George Huffman, Arnie Gruber, Vincenzo
  Levizzani, Deborah Smith, Jorge Sanchez-Sesma,
  Yang Hong, Rosario Alfaro, Tomoo Ushio, Thomas
  Heinemann

• Review of 1st IPWG Recommendations Action Items
• Any new business?
• Discussion on Goodmans L2 Standard Data Product
  Content
• Discussion on Arkins High Resolution
  Precipitation Products
• Discussion on Purdoms four CGMS topics

2
1st IPWG Recommendations

• Standard /Common Procedures
• Export algorithms
• IPWG Web Site
• Non-traditional precipitation applications
• Research
• Case study data sets
• Continued RD and validation of research
  algorithms
• Coordination of climate algorithms
• Future Sensors
• GEO lightning sensor recommendation to CGMS
• Open Items
• Reporting/communications
• Better temporal GOES data

3
Standard/Common Procedures

• Export algorithms
• IPWG Web Site continuing
• IPWG has been established with some portions
  still under development (Levizanni)
• Algorithm inventory completed (Arkin)
• Export algorithm on web site (Tapiador) 10
  users have accessed
• Updated recommendations/actions
• Add more export algorithms to web page
• HydroEstimator, CST
• SSM/I Ferraro, GPROF Kummerow
• Note that the purpose here is to offer algorithms
  as a learning tool for nations developing new, in
  house precipitation retrievals. Derived products
  can be obtained already in many cases. Also,
  each algorithm must be properly documented and
  have a champion
• Recommend to CGMS that training must be part of
  the export algorithm process and the CGMS pursue
  this with agencies such as EUMETSAT, NOAA and
  WMO. Also, perhaps add PDF versions of
  references on web site?
• Information on web page must be reviewed and
  updated. Information on algorithms should also
  include information such as limitations, works
  best for, etc. (Action Everyone)
• Should add section on products. Also include
  links to these products and archives, as well as
  provide DIRECT LINKS to imagery and data. (VL/AG
  to develop template and distribute).
• Add in links to case studies (URLs, imagery,
  PPT, etc.). Again, education is the priority.
  Template to be developed and distributed by
  Deborah Smith.
• Non-traditional precipitation applications
  Cancelled.

4
Research

• Case study data sets Open/Continuing
• Considered not feasible in the short term
• Continued RD and validation of research
  algorithms Complete/Continuing
• Several reports made on advanced techniques
• progress in blended techniques far enough along
  to now include as IPWG algorithms. Suggest
  stratification of types of blending used
• Some progress in solid precipitation and data
  assimilation
• New actions
• Continue to encourage and report on (at next
  IPWG) progress in new retrieval techniques
  (orographic, snowfall, etc.)
• Add blended algorithms, etc. to IPWG validation
  effort
• Coordination of climate algorithms Continuing
• Report was not provided (oversight), but Huffman
  to deliver paragraph on GPCC 1DD to be included
  in workshop report that will be posted on web
  site

5
Future Sensors

• GEO lightning sensor recommendation to CGMS
• This has been moved to research group

6
Open Items

• Reporting/communications Continuing
• Mailing lists were set up (Hinsman)
• 6 month reporting did not happen without nudging
  from co-chairs some confusion on how this should
  work
• Recommendations
• Turk and Hinsman to update IPWG mailing lists
• Clarify reporting procedures to optimize time and
  effort
• Better temporal GOES data Open
• Need to find out from Hinsman/Vila on this

7
Other Items

• L2 Data Content
• Spent quite a bit of time going over details
  within group and Goodman several issues
  clarified and updated
• Specific recommendations to be provided in
  workshop report (unless anyone wants to hear it
  now)
• Evaluation of HRPP
• The group applauds and encourages the four goals
  of this proposed effort, which will require
  continued validation projects as started already
  by the validation working group. The details of
  the implementation (science plan, funding
  sources, etc) were not well enough defined and
  the group did not further discuss these.

8
Other Items (cont)

• Purdoms four CGMS items
• A workshop in early August at the Univ of
  Maryland regarding a GPCP assessment for the
  IPCC. The report on GPCP assessment is being
  co-sponsored by the IPWG with the GPCP. It was
  recently revised by the GRP. We support this
  activity
• Progress is being made on solid precipitation.
  Closer collaboration is needed within IPWG. We
  are in support of a near-term workshop in
  conjunction with GEWEX/GRP, GPM and JCSDA
• Work needs to continue and intensify on
  precipitation over complex terrain
• Current IPWG validation studies Are the main
  hosts (Ebert, Janowiak, Kidd) willing/able to
  continue? New locations? Extra models/techniques
  added?