Staff Notes Daily Announcements

The next NCAR Python tutorial is being planned for the spring of 2020.  Currently, we are planning 3 separate events:

  • Beginner Track:  March 26-27, 2020
  • Intermediate Track:  April 6-7, 2020
  • Hackathon:  April 8-10, 2020

The Beginner and Intermediate/Hackathon events are separated by a week to give beginners time to digest new information before (if they wish) attending the Intermediate tutorial and the Hackathon.

The Beginner Track tutorial is intended to introduce participants to the basics, such as Git, GitHub, Jupyter Notebooks & Lab, the Python Language, itself, as well as common Python packages such as Numpy, Pandas, Matplotlib, and Cartopy.

The Intermediate Track tutorial is designed to build upon the basic information, covering such things as Xarray, Dask, Holoviews, Intake and Intake-ESM, as well as covering how to solve common real-world problems with these tools, such as computing climatologies, dealing with unstructured grids, etc.

The Hackathon is designed to give participants a chance to use their new knowledge in the development of a tangible project that can be shared and used for real science, or just to provide participants with the opportunity to try out their new skills!

If you are interested in attending any, or all, of these events, we ask that you register herePlease note that you may change your registration at a later date, so if you are interested but can't be certain you can or will attend, we ask you to indicate as much in the registration form (e.g., by indicating "Maybe" when aswering questions about whether you will attend).  For more information, email Kevin Paul.

Posted by Kevin Paul at ext. 2441,

Monday, January 20, 2020 to Thursday, March 26, 2020

Please view the New Hires and Departures as of Friday, January 10, 2020.

Posted by Nancy Hopek at ext. 8704,

Thursday, January 16, 2020 to Friday, January 24, 2020

ACOM jointly with the Universities and Research Organizations in the Front Range invites you to attend a community gathering on atmospheric chemistry and air quality.

Air pollution is now regarded as the number one “killer” ahead of cigarette smoking and alcohol/drug use. Research conducted to investigate processes related to atmospheric chemistry and aerosol microphysics is essential to address societal issues linked to bad air quality and climate change. This workshop will provide an opportunity for scientists and students in the Colorado Front Range to open a dialogue about their research through discussions and poster sessions.

Keynote Speakers Emily Fischer, Colorado State University and recipient of the AGU James B. Macelwane Medal Anthony N. Gerber, National Jewish Health

Limited seating, please register.

Friday, 13 March 2020 9AM TO 4PM NCAR Center Green Campus Lunch will be provided.

Posted by Bonnie Slagel at ext. 8318,

Wednesday, January 15, 2020 to Friday, March 13, 2020

Wednesday, February 26, 2020 to Friday, February 28, 2020 (main seminar room at NCAR's Mesa Lab)

This meeting celebrates Michael Knoelker’s original work on solar and stellar magnetism and seismology, as well as his major contributions to the High Altitude Observatory during his 15-year directorship, and his recent appointment to Senior Scientist Emeritus. Michael started his career with ground breaking work on magnetic flux concentrations in the solar photosphere. Michael Knoelker is known for his mentoring of young scientists, his collaborations on high-altitude, long-duration, balloon programs and his role as a Co-PI on the Daniel K. Inouye Solar Telescope (DKIST).

This symposium will focus on recent developments and future directions in solar physics, the solar-stellar connection, exoplanets and modeling of exoplanet atmospheres.

Please register at our website.

For more information you may contact Matthias Rempel, or Wendy Hawkins,

Posted by Wendy Hawkins at ext. 1552,

Wednesday, January 15, 2020 to Friday, January 31, 2020

Do you need to purchase goods or services at UCAR and are not sure where to begin? Do you often make purchases and would like to fine-tune your knowledge? Join us for an introduction to UCAR’s procurement policies and requirements and an introduction to UProcure at one of our upcoming training sessions:

Foothills Lab - Tuesday, January 28, 2020 in the Small Seminar room (FL2-1001) 9:00 - 9:45      Intro to Procurement     Add to calendar 10:00 - 11:00  Intro to UProcure          Add to calendar

Mesa Lab - Wednesday, January 29, 2020 in the Main Seminar room (ML-132) 1:00 - 1:45      Intro to Procurement     Add to calendar 2:00 - 3:00      Intro to UProcure          Add to calendar

Please note that these sessions will not be webcast. A recording of one of these sessions will be posted to the UProcure User Support site - I will let you know when it’s available. If you have any questions, please contact Alison Propes at or ext. 8877.

Posted by Alison Propes at ext. 8877,

Tuesday, January 14, 2020 to Wednesday, January 29, 2020

*MMM Seminar - Thursday, January 30, 2020 - 3:30pm

*Please note special location - FL2-1001/Small Auditorium

Speaker: Xiaoxu Tian

Affiliation: University of Maryland

A four-dimensional variational (4D-Var) vortex initialization (VI) system is developed for a nonhydrostatic axisymmetric numerical model with convection accounted for (the RE87 model). Derivations of the tangent linear and adjoint models of the RE87 model and the correctness checks are presented. As an initial evaluation of the 4D-Var VI system, a cost function that measures the model fit to satellite microwave retrievals of tropical cyclone (TC) warm-core temperatures and total precipitable water (TPW) from the following four polar-orbiting satellites within a slightly longer than 1-h assimilation window is minimized using the limited-memory quasi-Newton minimization algorithm: the Suomi National Polar-orbiting Partnership, NOAA-20, Fengyun-3D, and Global Change Observation Mission  – Water Satellite 1. An azimuthal spectral analysis in cylindrical coordinates centered on the TC centers shows that the warm core and TPW fields within TCs are dominated by the axisymmetric component. The 4D-Var VI results assimilating the axisymmetric component of the above satellite retrievals produced a significant reduction in the cost function and the norm of the gradient as the minimization process is completed. The gradient of the cost function is accurately computed by a single integration of the RE87 adjoint model. In the cases of Hurricane Florence and Typhoon Mangkhut, improved forecast of intensifications and more realistic vertical structures of all model state variables (e.g., temperature, water vapor mixing ratio, liquid water content mixing ratio, tangential and radial wind components, and vertical velocity) are obtained when compared with a parallel run initialized simply by the European Centre for Medium-Range Weather Forecasts ERA5 reanalysis.

Refreshments: 3:15 PM

Posted by Nancy Sue Kerner at ext. 8946,

Tuesday, January 14, 2020 to Thursday, January 30, 2020

The submission deadline for talks, tutorials and papers is January 27, 2020

The 2020 annual SEA’s Improving Scientific Software conference will take place in Boulder, CO at the NCAR Center Green Campus from the afternoon of Monday April 27th to Friday May 1st, 2020.

We are soliciting talks, tutorials and papers on Improving Scientific Software related to any of the following:

  • Influence of computer architecture on scientific software design, including but not limited to:
    • Modern architectures (such as GPU, ARM, etc)
    • Post-modern architectures (such as Quantum Computing, Neuromorphic, etc)
    • Extreme Heterogeneity (intra-node and inter-system)
    • Edge computing
    • Communication/computation overlap
    • Performance, Portability & Productivity
  • Modern tools for
    • Data Analysis, Processing and Visualization
    • Scientific Workflows: Purpose and Product Review
  • Machine learning  for Scientific Computing
  • Containers in scientific software
  • Leveraging Cloud Computing Resources for HPC Development and Operations

Papers will be peer-reviewed and published as proceedings in an NCAR Technical Note, a technical report series issued by the NCAR Library. Only papers presented through an oral talk at the conference will be considered for publication, but talks may or may not have an accompanying paper.

The submission deadline for talks, tutorials and papers is January 27, 2020.  Notification of acceptance will be two weeks after the January deadline.

Please see the SEA conference site for more information.

Posted by Taysia Peterson at ext. 1222,

Monday, January 13, 2020 to Monday, January 27, 2020

The Webmod2 Project (creating and updating websites across nCAR, UCAR, and UCP) had two town hall meetings the 2nd week of January. We have created a Google Group where project updates will be posted and we can answer any questions you might have. Please sign up for the group.

Posted by James Davies at ext. 1186,

Friday, January 10, 2020 to Friday, January 31, 2020

Are you interested in K-12 education and public outreach? If so, please join your colleagues in a discussion about this topic on Tuesday, January 28th, from 2:30-3:45 pm in FL4-1201 (Unidata conference room). During this meeting, we will share updates on education and outreach efforts happening across the organization, discuss ideas for collaborations across groups, and discuss new ideas for education and outreach efforts we want to consider doing in the future.

To RSVP, please send an email to Shaun Bush at and you'll be added to the calendar invite. A Google Hangout link will be included for those who are unable to attend this meeting in person.

In addition, if you haven't already signed up for the email list for this group (, please email Emily Snode-Brenneman at and let her know that you would like to be added to the list to get notifications about education and outreach opportunities.

Posted by Emily Snode-Brenneman at ext. 2579,

Thursday, January 9, 2020 to Tuesday, January 28, 2020

NCAR is pleased to partner with CUAHSI to offer the Training Workshop: The Community WRF-Hydro Modeling System, a 3.5-day hands-on training workshop on the use and applications of the Community WRF-Hydro Modeling System. June 2-5, 2020 in Boulder, CO at NCAR Foothills Lab. 

How to Apply:

The application period opened 7 January 2020 and closes 5:00pm ET 28 February 2020. Fill out this form Complete applications will be accepted until 5:00 p.m. EDT on 28 Feb 2020.

We recommend that you submit your application as soon as possible, as applications will be reviewed on a first-come, first-served basis. We reserve the right to review only the first 50 applications. Past offerings of this course have filled up very quickly. Note: Preference will be given to those who have not yet attended a WRF-Hydro training, and are from the academic and nonprofit sectors in addition to the first-come-first-serve policy. Also note: The number of accepted representatives per institution is limited to 2.

See the event website: for full course information.  

Workshop Eligibility Applicants must apply to attend the workshop. Applications will be accepted from current and incoming graduate students, post-docs, academics, and professionals working in hydrology and/or the atmospheric sciences. Instructors will review applications to verify in advance that the applicant has the necessary skills and experience to successfully participate in the workshop and get the most out of the course topics.


  • Prior hydrologic and/or atmospheric modeling experience is required.
  • Must be comfortable working in a UNIX environment, running UNIX command-line operations and text editors.
  • Familiarity with the R and/or Python programming language is recommended.

This training workshop will provide graduate students and early-career scientists with formal instruction on the structure and application of the WRF-Hydro system and will offer hands-on experience in setting up and running the system for several different research and prediction applications. Preference will be given to applicants in the Academic and Nonprofit sectors.

Topics to be covered during the workshop include but are not limited to:

  • Conceptualization and structure of the WRF-Hydro system
  • Description of physics components and options within WRF-Hydro
  • Model porting and compilation, and an overview of parallel computing with WRF-Hydro
  • Hands-on model input data preparation and creation of an example test case
  • Hands-on model configuration and execution
  • Hands-on experimental model simulations and comparisons with a prepared example test case
  • Hands-on example WRF|WRF-Hydro model coupled simulation
  • Overview of model calibration
  • Open discussion on class participant interests and applications & interactive activities

Class participants will receive in-depth training via lectures and hands-on activities on the implementation and use of the WRF-Hydro system where all hands-on tutorial activities will be conducted in a formal computer laboratory located at NCAR in Boulder, CO.

Lead Instructor: Dave Gochis, NCAR


Dave Gochis, NCAR Aubrey Dugger, NCAR Kevin Sampson, NCAR Laura Read, NCAR Arezoo RafieeiNassab, NCAR Katelyn FitzGerald, NCAR Ryan Cabell, NCAR Matt Casali, NCAR

Posted by Molly McAllister at ext. 8253,

Wednesday, January 8, 2020 to Friday, February 28, 2020


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