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CRTM Working Group Report

CRTM Working Group Report. Paul van Delst and Yong Han Joint Center for Satellite Data Assimilation JCSDA 7 th Workshop on Satellite Data Assimilation May 12-13, 2009. Members. At the JCSDA

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CRTM Working Group Report

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  1. CRTM Working Group Report Paul van Delst and Yong Han Joint Center for Satellite Data Assimilation JCSDA 7th Workshop on Satellite Data Assimilation May 12-13, 2009

  2. Members • At the JCSDA • Yong Han, Paul van Delst, Quanhua Liu, Yong Chen, Banghua Yan, Ron Vogel, David Groff, Tong Zhu, and Fuzhong Weng. • Core Team Members • Ben Ruston (NRL), Zhiquan Liu (AFWA/NCAR), Emily Liu (GMAO), Dan Birkenheuer (ESRL), and Ye Hong (NPOESS/Aerospace) • Collaborating Team Members • Ralf Bennartz, Tom Greenwald (UWisc-Madison); Ping Yang (Texas A&M); Jean-Luc Moncet, Vivienne Payne, and Alan Lipton (AER Inc.)

  3. CWG Meeting #3, Jul2008 • All parties provided updates of work since CWG #2, Apr2008. • Action Item summary: • Respond to AER on spectroscopy priorities (P.van Delst and Y. Han). [Occurred after CWG#4] • Address land MW desert emissivity bias (B.Yan and WZheng), produce new empirical emissivity (B.Yan). [Nearly complete – see CRTM poster] • Investigate large CRTM Jacobians responsible for the large stratopause temperature increments at GMAO (Y. Chen and E. Liu). • Address large ocean surface MW emissivity error at high frequency and any other outstanding bias issue in GFS (Q. Liu and B. Yan). • Complete generation of FengYun-3 coefficients (Y. Chen and Y. Han). • Improve User Guide. (P. van Delst). [Still needs much work!] • Meeting minutes are downloadable at: https://svnemc.ncep.noaa.gov/trac/crtm/browser/trunk/doc/CWG/2008_07_31

  4. CWG Meeting #4, Feb2009 • Delayed due to focus on v1.2 release of CRTM here at JCSDA. • All parties provided updates of work since CWG #3, Jul2008. • Action Item summary: • Obtain IPO cal/val report that includes updated ATMS instrument characterization (F. Weng). • Contact T. Auligne (AFWA/NCAR) about adding cloudy radiance code to the appropriate CRTM version. (P. van Delst) • Make CRTM historical releases available on CRTM ftp site. (P. van Delst) • Add channel selection for CRTM processing and emissivity. (P. van Delst) • Organize visit of T. Greenwald (UWisc) to the JCSDA to work on SOI integration. (P. van Delst) • Discuss precipitation particle sizes with Z. Liu (AFWA/NCAR) (F. Weng) • Coordinate discussion for continuation of AER funding. (Y. Han) • Meeting minutes are downloadable at: https://svnemc.ncep.noaa.gov/trac/crtm/browser/trunk/doc/CWG/2009_02_05

  5. CWG Communications • A topic that was discussed at the last meeting was how to improve the level of communication amongst CWG members. • Some of the recommendations: • One person to keep track of issues and touch base with each individual group. (Split between PvD and YH) • Bi-monthly contact with members. • CWG shares JCSDA monthly highlights reports, or recent updates, amongst members. • A bi-monthly email is now sent to the CWG mailing list detailing the activities of the JCSDA members. • We still need to further improve communication amongst members, but need to determine best procedure without further burdening members (i.e. with yet more reporting requirements). • New CRTM trac page may be useful?

  6. CRTM Repository and trac SCM page • The new, public, EMC subversion server is now online and operational. CRTM is one of the projects on that server. • Authenticated users can now checkout code directly from the repository. • For the first time, all JCSDA CRTM developers have access to the same repository. • CWG members (and other users) can apply for server accounts and access. • The server also uses the trac SCM tool: • Wiki • Timelines and roadmaps/milestones • Source browser with revision histories • Ticketing system • Use Wiki for information sharing amongst CWG members?

  7. CRTM Wiki

  8. CRTM Timeline

  9. CRTM Roadmap

  10. CRTM Browser

  11. CRTM Ticket System

  12. CRTM Testing Meeting, Apr2009 • With online repository, JCSDA members discussed testing procedures. Action items (none complete): • Automate the build and test of the CRTM (P. van Delst) • For automation, only overall functional test to be used. Need to determine what needs to be added to that (All) • Coordinate CRTM-in-GSI testing so that we end with a testing harness amenable to automation (Y. Chen and P. van Delst) • Update CRTM Coding Review and Acceptance Guidelines (P. van Delst) • Generic perturbation routines for testing (Volunteers?) • Obtain a “bad” profile set for testing (Volunteers?) • Input data sanitiser for the CRTM that is user selectable (P. van Delst) • Decided to use a standard set of instruments for testing: • MetOp-A microwave and IR broadband instruments. • MetOp-A IASI: 19 channels that correspond to the HIRS/4 central frequencies, plus channels 2463 and 5569 for trace gases.

  13. CRTM URLs • CRTM trac page https://svnemc.ncep.noaa.gov/trac/crtm • CRTM repository (for checkouts, commits, etc) https://svnemc.ncep.noaa.gov/projects/crtm • CRTM ftp site ftp://ftp.emc.ncep.noaa.gov/jcsda/CRTM • CRTM Announcement mailing list: https://lstsrv.ncep.noaa.gov/mailman/listinfo/ncep.list.emc.jcsda_crtm • CRTM CWG mailing list: https://lstsrv.ncep.noaa.gov/mailman/listinfo/ncep.list.emc.jcsda_cwg • CRTM Developers mailing list: https://lstsrv.ncep.noaa.gov/mailman/listinfo/ncep.list.emc.jcsda_crtm.developers

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