CISL Daily Bulletin

The Daily Bulletin delivers news about CISL’s high-performance computing environment, training opportunities, scheduled maintenance, and other events of interest to the user community. To get the Daily Bulletin by email, use this link to subscribe.

Final notice regarding RDA ERA5 Reanalysis GRIB files

April 18, 2025

The Data Engineering and Curation Section (DECS) of CISL is phasing out whole file download, subsetting, and Campaign Storage access to RDA ERA5 Reanalysis in GRIB format (d633000). ERA5 Reanalysis GRIB files on Campaign Storage have not been accessible since early March and will be removed Wednesday, April 30, 2025. We expect no impact as many users have already transitioned to the NetCDF fil...

Join a seminar about the NOAA Satellite Observing Systems Architecture

April 17, 2025

On Wednesday, April 30, from 2:00 to 3:00 p.m. MT, join NSF NCAR’s High Altitude Observatory (HAO) for a live seminar. The talk, entitled “The Systems Approach to the NOAA Satellite Observing Systems Architecture (NSOSA) Project,” features speaker Mark Maier from the University of Utah. From 2014 to 2018, NOAA's NSOSA program studied alternative approaches to environmental observation satellit...

Join a seminar about the importance of meteoric-sulfuric particles

April 17, 2025

On Tuesday, April 29, from 3:30 to 4:30 p.m. MT, join NSF NCAR’s Earth Observing Laboratory (EOL) and Atmospheric Chemistry Observations and Modeling (ACOM) lab for a seminar featuring Michael Lawler of CIRES/NOAA. The talk is entitled “Meteoric-Sulfuric Particles Formed in the Winter Polar Vortex: Their Size, Composition, and Fate.” Understanding stratospheric aerosol is important for predicti...

Reminder to register for WCRP Digital Earths Global Hackathon—the deadline is Wednesday, April 23rd

April 17, 2025

NSF NCAR will host the US-Central “node” of the World Climate Research Programme (WCRP) Digital Earths Global Hackathon, a globally distributed event designed to advance the analysis and development of high-resolution Earth-system models. This event, taking place from May 12 to 16, 2025, will gather participants to collaborate on hacking, bug-fixing, and learning in a dynamic, hands-on environ...

All NCAR HPC users are invited to join the April NHUG meeting!

April 15, 2025

The next NHUG meeting is scheduled for Tuesday, April 15, 2025, at 1 PM MT, and we invite all NCAR HPC users to attend. This month’s agenda will include: • CIRRUS Introduction and Update – Nick Cote • OpenMPI on Derecho - Brian Vanderwende • Upcoming opportunities and planned outages. To add this meeting to your calendar, please use the following link. NHUG meetings are structured to encourag...

HPC Resource Disruption & Resolution from Saturday, April 12

April 14, 2025

Derecho compute nodes went down Saturday, April 12, due to an issue with servicing and distributing their filesystem data. Systems engineers quickly triaged the issue and returned Derecho to service several hours later. All jobs running on Derecho at the time - approximately 10AM MDT - failed. The disruption temporarily interrupted file system activities, which also caused running Casper job...