Staff Notes Daily Announcements

Beginning Saturday, October 5th @ 06:00, the NCAR Mesa Lab Colocation Data Center will be shut down to facilitate standard data center infrastructure maintenance. Operations begin @ 06:00 and are scheduled to end no later than 18:00.

The majority of computational operations in the Mesa Lab data center will be impacted during this Saturday outage. Program system administration teams have been provided details on the work taking place. If you have questions regarding impacts to your program, check with your system administration team.

You can obtain detailed information about the outage, notifications, and service impacts at the following link:

If you require additional information send your questions to:

Posted by Jasen Boyington at ext. 1859,

Tuesday, September 24, 2019 to Friday, October 4, 2019

MMM Seminar - Thursday, October 10, 2019 - 3:30pm

Speaker: Wojciech W. Grabowski

Affiliation: Mesoscale and Microscale Meteorology Laboratory, NCAR

Representation of cloud microphysics is a key aspect of simulating clouds. From the early days of cloud modeling, numerical models have relied on an Eulerian approach for all cloud and thermodynamic and microphysics variables. Over time the sophistication of microphysics schemes has steadily increased, from simple single-moment bulk warm-rain schemes, through double- and triple-moment bulk warm-rain and ice schemes, to complex bin (spectral) schemes that predict the evolution of cloud and precipitation particle size distributions. As computational resources grow, there is a clear trend toward wider use of bin schemes, including their use as benchmarks to develop and test simplified bulk schemes. We argue that continuing on this path brings fundamental challenges due to the complexity of processes involved (especially for ice), the multiscale nature of atmospheric flows that Eulerian approaches are not able to cope with, conceptual issues with the Smoluchowski equation that is solved by bin schemes to predict evolution of the particle size distributions, and numerical problems when applying bin schemes in multidimensional cloud simulations. The Lagrangian particle-based probabilistic approach is a practical alternative in which the myriad of cloud and precipitation particles present in a natural cloud is represented by a judiciously selected ensemble of point particles called super-droplets or super-particles.  Advantages of the Lagrangian particle-based approach when compared to the Eulerian bin methodology will be explained and illustrated with computational examples. Prospects of applying the method to more comprehensive simulations involving clouds, for instance targeting deep convection or frontal cloud systems, will be discussed.

Refreshments: 3:15 PM

Posted by Nancy Sue Kerner at ext. 8946,

Tuesday, September 24, 2019 to Thursday, October 10, 2019

Please view the New Hires and Departures as of Friday, September 20, 2019 at the link below:

Posted by Evette Aragon at ext. 8725,

Tuesday, September 24, 2019 to Tuesday, October 15, 2019

Let's share our story. Metrics reporting plays a crucial role in communicating our achievements and service contributions to the broader community.  Per the cooperative agreement with NSF and our institutional commitment to accurately account to our sponsors, reviewers, peers and taxpayers, it is the responsibility of all NCAR staff members to contribute and update their metrics each year.  While this takes time, it is an important activity. Staff metrics, for instance, are a significant part of our annual management report, and NSF pays attention!

Please work with your team to enter your FY 2019 (Oct 1, 2018 - Sept 30, 2019) metrics into the Metrics Database by Friday, Oct. 11. This will ensure that your Staff Directory metrics and individual Activity Reports are current and our year-end reporting to NSF is accurate.

Please take a few minutes to enter your metrics if you have:

  • Served on a thesis committee
  • Served as a journal editor
  • Received an external award or honor
  • Contributed to K-12 activities
  • Mentored a colleague
  • Presented a poster or talk
  • Served on an external  or internal committee
  • Gone on a collaborative staff leave greater than 2 weeks
  • Taught in a college classroom
  • Taught in a Workshop/Tutorial


Data about the accomplishments and contributions of you and your colleagues is essential information that we are proud and honored to share with our sponsors, peers and constituents.  Thank you for taking valuable time from your busy schedule to contribute your data.

Need help?  Check out the Learn in a Minute Videos - The Metrics Database Series

Click on the link to Videos in the navigation near the top of the page in the database or go directly to the video by clicking on the title below:


Call or email Konnie Phillips at ext. 1101, or your Metrics Maven if you have any questions. 

Posted by Konnie Phillips at ext. 1101,

Monday, September 23, 2019 to Wednesday, September 25, 2019

Title: The seasonal cycle of sea-air CO2 fluxes in the Southern Ocean: diagnosing anomalies in CMIP5 Earth Systems Models

Speaker:  Precious Mongwe, NCAR

Date:  Tuesday, 24 September, 2019

Time:  11 am - 12 pm

*Refreshments at 10:45*

Location:  Mesa Lab, Main Seminar Room, ML - 132

Abstract:  The Southern Ocean forms a vital component of the earth system as a sink of CO2 and heat, taking over 40% of the annual oceanic CO2 uptake (75% of global heat uptake). Recent studies based on the Coupled Model Intercomparison Project version 5 (CMIP5) Earth System Models (ESMs) show that CMIP5 ESMs disagree on the phasing of the seasonal cycle of the CO2 flux (FCO2) and compare poorly with available observed estimates in the Southern Ocean. Because the seasonal cycle is the dominant mode of variability for CO2 and chlorophyll in the Southern Ocean, these biases raise important concerns about ESMs long-term projection skill in the Southern Ocean. This study is two parts; first, uses 10CMIP5 models to investigate the mechanistic basis for the seasonal cycle of FCO2 biases in these models. We find that FCO2 biases in CMIP5 models can be grouped into two main categories, i.e., group-SST and group-DIC. Group-SST models are characterized by an exaggeration of the seasonal rates of change of Sea Surface Temperature (SST). These faster than-observed rates of change of SST exaggerate the role of temperature-driven solubility in surface pCO2 and FCO2.While almost all analyzed models show these SST-driven biases, 3 out of 10 (namely NorESM1-ME, HadGEM2-ES, andMPI-ESM, collectively the group-DIC models) compensate the solubility bias because of their excessive primaryproduction, such that biologically-driven DIC changes become primary regulators of the seasonal cycle of FCO2 which also contrary to observed estimates. In the second part, 7 of the 10 are used to investigate what role these present climate seasonal cycle of CO2 biases might play on the simulated (2090 - 2099) net CO2 sink change and its driving mechanism under the RCP8.5 climate scenario. We find the analyzed models generally agree on the entire Southern Ocean CO2 sink increase but disagrees on the mechanism driving the increased sink. Biological CO2 uptake is the primary driver in group-DIC models linked to decreasing of the CO2 buffering capacity, which also amplifies the FCO2 seasonality.On the contrary, temperature-driven CO2 solubility is the primary driver for group-SST models. This outcome highlights that CO2 seasonality biases propagates to the end of the century and maybe an important uncertainty for predicting seasonal scale marine ecosystem anthropogenic impacts in the Southern Ocean.

For more information contact Tracy Baker,, x1366

Posted by Tracy Baker at ext. 1366,

Monday, September 23, 2019 to Tuesday, September 24, 2019

Join the UCAR Center for Science Education (SciEd) for our spectacular Super Science Saturday Event on Nov. 2nd! This year's theme is AIR EVERYWHERE!

UCAR/NCAR/UCP staff help to make the event fun, meaningful, and informative by greeting the public, providing general information and engaging the public in simple science education activities. Please consider volunteering for one of the following shifts: 9:30 am – 1:00 pm and/or 12:30 pm – 4:30 pm

Click on the link below to sign up to volunteer with us at this amazing event:

Posted by Shaun Bush at ext. 2580,

Monday, September 23, 2019 to Friday, October 18, 2019

Do you struggle to intervene when you see something going on? Do you avoid difficult conversations because you're not sure how to have them or are worried they may backfire? 

UCAR's Office for Diversity, Equity & Inclusion (ODEI) is holding regular Bystander Intervention and Difficult Conversations trainings to help prepare all staff for these kinds of conversations. We will discuss the barriers that prevent us from intervening. You will learn skills and techniques to intervene in difficult workplace situations. We will provide you with a model for difficult conversations and you will practice effective ways to have these challenging conversations with supervisors, peers, and direct reports. These are stand-alone sessions and no prior experience is needed. We welcome people from all job categories and levels of seniority at the organization. 

To sign up please visit the Connect website. From the home screen, click "View the EOD training calendar and register for courses" and search for "PRO158" to select the session you want to attend.

  • Tuesday, November 12, 8am-12pm, ML-Damon Room

New Dates for 2020 coming soon! Registration will be avalbe on Workday.

If you have questions please contact Kristen Aponte x1657 or Katy Putsavage x8844. We are still working to identify a way to provide to off-site staff.

Posted by Katy Putsavage at ext. 8844,

Monday, September 23, 2019 to Friday, September 27, 2019

The Mesa Lab semi-annual building maintenance shutdown is scheduled for Saturday, 5 October from 6:00 a.m. until 6:00 p.m.  During this time the Mesa Lab and Fleischmann Buildings will experience intermittent electrical, heating, and air conditioning interruptions, some for extended periods.

Access to the Mesa Lab will be restricted to authorized employees, and there will be no public access to the building.  Visitors may still use the trails around the building.

CISL will be releasing information regarding the impact of the Mesa Lab Data Center portion of the shutdown in the near future as details become available.

For Mesa Lab Data Center questions, contact Jasen Boyington, ext. 1859 or


Posted by David Maddy at ext. 1134,

Monday, September 23, 2019 to Wednesday, September 25, 2019

When: October 16-17, 2019

Where: University Corporation for Atmospheric Research, 3090 Center Green Drive, Boulder, CO

* Registration is free and ends October 1 *

Please join us for this excellent opportunity to network with Senior Scientists and other Early-Career Scientist. The primary purpose of the workshop is to reinvigorate the growing US iLEAPS community while continuing the momentum leading to the 2021 meeting in New Zealand. This will be accomplished through illustrating the iLEAPS science plan on air pollution effects on the ecosystems and human health.

Presentations will include state of the art atmospheric measurements and ecosystem and health modeling as they relate to atmospheric chemistry, as well as ecosystem processes and interactions/feedbacks between the land and atmosphere. The workshop will consist of presentations from a panel of experts in their fields:

• Eleanor Blyth - Centre for Ecology & Hydrology, UK • Vinayak Sinha - Indian Institute of Science Education and Research Mohali, Punjab, India • Silvano Fares – Council for Agricultural Research and Economics, Research Centre for Forestry and Wood, Italy • Sebastian Leuzinger – Auckland University of Technology, NZ • Allison Steiner - University of Michigan • Ben Poulter - NASA • Xuemei Wang - Sun Yat-sen University, Guangzhou, China • Garry Hayman - Centre for Ecology & Hydrology, UK • David Odee – Kenya Forestry Research Institute, Nairobi, Kenya • Christine Wiedinmyer – CIRES • Dennis Ojima – CSU • Jean Francois Lemarque – NCAR CGD Group • Clare Granier – GEIA; CIRES • Olivia Clifton – NCAR • Danica Lombardozzi – NCAR

Agenda and additional information can be found at: (

Funding support is available for accommodations. For questions, please contact

Posted by Marlene DiMarco at ext. 1371,

Monday, September 23, 2019 to Friday, September 27, 2019

MMM Seminar - Thursday, October 3, 2019 - 3:30pm

Speaker: Susan Joslyn

Affiliation: Department of Psychology, University of Washington

How do everyday users understand weather forecast information? What is the best way to provide them with information that is relevant to critical decisions but not confusing? This talk will describe a psychological research program that investigates each of these questions using a cognitive-experimental approach. We show, in a series of experimental studies that including numeric uncertainty estimates (30% chance) in weather forecasts leads to better decisions and increases trust in the forecast when compared to deterministic forecasts. Surprisingly comprehending probabilistic expressions does not depend on the user's level of education. However, understanding depends critically on how uncertainty is expressed. Communication formats that take into account users' decision goals are much better understood than those that ignore the user's perspective. In addition some typical misunderstandings will be discussed, particularly those that occur when visualizations are used. Finally we will describe the evidence suggesting that forecast consistency may not be as important as was once thought. In sum, this line of research suggests that people can attain a “working understanding” of fairly complex and updating information as long as it is communicated in a way that is compatible with how people think about the issues.

Refreshments: 3:15 PM

Posted by Nancy Sue Kerner at ext. 8946,

Monday, September 23, 2019 to Thursday, October 3, 2019


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