WRF-DFI project meeting 20060515

Hans, Wei, Ju-Won

Lilly room, 2-3 pm, Monday 15 May 2006

1. Work review

1.1. Statistics

The work has progressed very well. Ju-Won coded and revised the statistics package. Hans, Wei and Min all tested it and provided comments and suggestions.

The documentation is still needed.

Wei had comments on some figures. The noisy patterns in the divergence tendency and the fast oscillations in some domain-averaged quantities should be understood.

1.2. DFL

The work has progressed very well. Min made a couple of implementations of DFL. Hans tested the DFL code and provided comments and suggestions. Ju-Won tested the DFL code on KMA operational domains.

Min also made a brief document on the practical side of running DFL.

Wei reviewed the code and would like to work with Min on revising the code. This has to wait for Min’s arrival.

1.3. Backward integration

Wei has discussed the strategy with Bill S. and Tom. She also made necessary preparations for the work. She was going to start with an idealized case.

Hans mentioned Wei Huang’s code for integrating the WRF adjoint model backward in time. He also suggested Min to look into the problem as she did the MM5 DFI recently.

1.4. Summary

Most of the tasks have been on schedule.

In addition to the topics discussed in previous sub-sections, the following had also been done in the project:

Hans spent sometime to set up a project web page, which has been used as a common reference.

Some reading and preparation were done at the beginning of the project.

Hans and Wei did some work before statistics and DFL.

2. Work plan for this week

Hans: complete the meeting memo; contact Pat to add a user account for Ju-Won on BIG; provide Ju-Won with some references on the spinup problems; help Ju-Won start DFL experiments.

Wei: help Ju-Won set the CONUS domain up; press on the backward integration work using the idealized cases.

Ju-Won: get familiar with the NCAR computing environment; write some text about the statistics package; repeat the DFL tests on the CONUS domain and confirm the noisy pattern in the divergence tendency fields; try to understand the strange oscillations in some statistics.

Min: run more experiments with different filtering strategy; start to look into the backward integration problem; try to understand the strange oscillations in some statistics.

3. AOB

Min could not come to NCAR on time due to her US visa problem.

Hans agreed to write a memo for this meeting. Ju-Won and Min will take over the memo writing from the next meeting.

We will have regular project meetings, start today, every second Tuesday, except for the next meeting: Lilly room, 2 pm Tuesday 23 May.