2021 Annual Summary of Accomplishments Training
Please join Lucia Harrop, CIRES Admin, and the CIRES HR team for training on the Annual Summary of Accomplishments (ASA) Monday, April 5 from 10-11am, for employees embedded at the NOAA labs.
The ASA is a yearly requirement for most CIRES employees and their supervisors. This training will provide an overview of the CIRES ASA process and timelines, and will also cover changes from last year. Particularly relevant for new hires, or those who are new to supervisory roles. Science advisor input is also very helpful in this process, and federal partners are welcome to attend the overview.
Angela Knight, CIRES HR Director and Christine Wiedinmyer, CIRES Associate Director for Science, will be available to answer any questions you may have.
**Note: A separate session will be held Monday, April 12 from 10-11am, for CU Boulder campus-based employees. Both sessions will also be recorded and posted to insideCIRES for those who can't make it.
Atmospheric Chemistry Program Seminar
Aerosol optical closure and long-term MAX-DOAS observations
"Aerosols remain a major source of uncertainty in the global radiative budget. Studies that combine vertically-resolved measurements of aerosol size distributions and refractive index (inferred from aerosol composition measurements) are needed to assess our understanding of multispectral aerosol optical closure. Here we use data from the NASA airborne HSRL-2 instrument, which retrieves aerosol extinction profiles at 355, 532, and 1064 nm from backscatter measurements. The dataset we use is from the Two-Column Aerosol Project (TCAP) in July 2012, which deployed two research aircraft above the DoE ARM mobile facility at Cape Cod, MA. This dataset is reanalyzed here to investigate the effects of aerosol water on dry aerosol size and composition, and our ability to constrain Mie calculations to obtain multispectral optical closure.
High-altitude ground-based remote sensing is well-suited for long-term profile measurements of trace gases and aerosols, and provides unique sensitivity to the free troposphere. An example of this is the University of Colorado Multi-AXis Differential Optical Absorption Spectroscopy (CU MAX-DOAS) instrument, which measures vertical profiles of trace gases (BrO, IO, HCHO, CHOCHO, NO2, O3, SO2, H2O, etc.) and aerosols. Since February 2017, two CU MAX-DOAS instruments have operated continuously at Mauna Loa Observatory, Hawaii (155.578 W, 19.539 N, 3397 msl) and Maido Observatory, Reunion Island (55.384 E, 21.080 S, 2160 msl), respectively. In March 2021, a third CU MAX-DOAS instrument was deployed at Storm Peak Laboratory (106.744 W, 40.455 N, 3209 msl) in Steamboat Springs, Colorado. Leveraging the data from these three measurement sites, the vertically-resolved spatiotemporal variation of trace gases and aerosols can be characterized in both hemispheres."