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Consortium Meeting 10/6/2011. Major Side News: Langley Hill Radar. Langley Hill Radar Operational. Fully operational INCLUDING dual-pol capability. Note: all of our regional radars will be dual-pol soon. Extraordinary view offshore and over the coastal zone
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Langley Hill Radar Operational • Fully operational INCLUDING dual-pol capability. Note: all of our regional radars will be dual-pol soon. • Extraordinary view offshore and over the coastal zone • Now seeing things 200-250 miles offshore. • Will get dual-pol graphics online in next two weeks
Radar • One major enhancement left on Nov 1: zero degree elevation angle (or close to it). Much more range and MUCH better low-level coverage. • This year will will begin assimilating the Langley Radar (and others) into our regional data assimilation system.
Web Server is Bogging Down • The department web server is bogging down under an increased load. • Has occasionally caused degradation in access times for WRF model products • The Department is going to substantially upgrade the server and will pay for it (this is where the indirect costs go).
Personnel Issues • Phil Regulski has left for the private sector ($$$ issues) a few weeks ago. Virtually no warning. • Mark Albright has increased his hours to take over Phil’s tasks for model interface/graphics issues. • Jeff Baars took over Seattle applications • Dave Ovens has taken over baby sitting the real-time EnKF system. • Short-handed now and will have to deal with that.
Items Completed Since Last Meeting • The point and click, random selection capability, is operational for meteograms, soundings, and time-heights. Takes roughly 20 seconds to come up. • Will add 1.3 km when it is stabilized
Major Upgrade This Summer • Added three new nodes (24 processors) and expanded the 1.3 km half-way to Missoula
Major Upgrade 1 • Big problems. There was an incompatibility in the infiniband cards on the new nodes with those on the old nodes. • Had to return the motherboards and exchange for identical ones as the old machines with onboard infiniband. Big pain. • Problem was eventually solved with new cards and new domain went operational during the summer (0630).
Improvements • Dropped terrain smoothing when we found another way to insure stability of 4/3 km runs—sound wave averaging option. (Had been smoothing the most severe terrain where we had the problems). • Added air quality page for 4/3 km resolution.
Striation Problem Fix Striations in precipitation were found in the SW part of the domain
Striation Problem • Confirmed by the WRF folks. • Turns out it originated in the new Kain-Fritsch convective scheme with shallow cumulus. • Tested the old Kain-Fritsch and new Grell convective scheme…problem went away and everything else looked similar. • Switch to old KF on August 30.
Major Upgrade (2) • Ready for the push of the 4/3 km to Missoula. • Also moving the 4/3 farther out into the Pacific to alleviate problems with the boundary being too close to the WA coast. • Also increased the 12 and 4-km domains to allow this. • Have added 4 new 12-core nodes. Total processors that we will run is 136 (11x8 + 4x12). Not long ago we were running 30-40 processors! • The new units are working well and scaling—timing should be very similar to current smaller domain.
October 11 Major Lesson: Need to get upstream boundary away from our areas of interest
New RAID data server • We are rapidly running out of space with new graphics and the HUGE new domain. • Purchased a new data server and will install as soon as 4/3 km domain is stable next week. • Also does graphics generation. • Dual 6-core xeons with 48 gig of ram. We bought it with 12 2-TB drives running raid 6 for a total of 20TB usable space and dual-disk failure redundancy. It is expandable to 36 drives -> 34x2 or 68TB possible. • It also has a spare raid card as a backup and infiniband. • When this is up we will go forward with the graphics upgrades everyone wanted (some have been done though).
Next Steps • OK to initiate expansion? • WSU and others ready for changes in 12, 4, and 1.3 km domains? • Next new RAID array. • Next new dept web server. • Next new graphics for 1.3 km and expansion of random selection to 1.3 km • Addition of radar to EnKF.
Example other items • SNOWWATCH close to being ready to go.