Arctic Summer Cloud Ocean Study (ASCOS)

PI: Ola Persson (U. Colorado), Co-PI Matthew Shupe (U. Colorado)

Papers Under This Grant (2008-Present)

  1. Mauritsen, T., J. Sedlar, M. Tjernstrom, C. Leck, M. Martin, M. D. Shupe, S. Sjogren, B. Sierau, O. Persson, I. Brooks, and E. Swietlicki, 2011: An Arctic CCN-limited cloud-aerosol regime. Atmos. Chem. Phys., 11, 165-173.
  2. Sedlar, J., M. Tjernstrom, T. Mauritsen, M.D. Shupe, I.M. Brooks, P.O.G. Persson, C.E. Birch, C. Leck, A. Sirevaag, and M. Nicolaus, 2011: A transitioning Arctic surface energy budget: the impacts of solar zenith angle, surface albedo and cloud radiative forcing. Climate Dynamics, 37, 1643-1660.
  3. Sedlar, J., M. D. Shupe, and M. Tjernstrom, 2012: On the relationship between thermodynamic structure, cloud top, and climate significance in the Arctic. J. Climate, 25, 2374-2393.
  4. Shupe, M. D., I. Brooks, and G.Canut, 2012: Evaluation of turbulent dissipation rate retrievals from Doppler cloud radar. Atmos. Meas. Tech., 5, 1375-1385, doi:10.5194/amt-5-1375-2012.
  5. Birch, C. E., I. M. Brooks, M. Tjernstrom, M. D. Shupe, T. Mauritsen, J. Sedlar, A. P. Lock, P. Earnshaw, P.O.G. Persson, S.F. Milton, and C. Leck, 2012: Modelling atmospheric structure, cloud and their response to CCN in the Central Arctic: ASCOS case studies. , Atmos. Chem. Phys., 12, 3419-3435.
  6. Tjernstrom, M, C. E. Birch, I. M. Brooks, M. D. Shupe, P. O. G. Persson, J. Sedlar, T. Mauritsen, C. Leck, J. Paatero, M. Szczodrak, and C. R. Wheeler, 2012: Central Arctic atmospheric summer conditions during the Arctic Summer Cloud Ocean Study (ASCOS): Contrasting to previous expeditions. Atmos. Chem. Phys., 12, 6863-6889, doi:10.5194/acp-12-6863-2012.
  7. Shupe, M. D., P. O. G. Persson, I. M. Brooks, M. Tjernstrom, J. Sedlar, T. Mauritsen, S. Sjogren, and C. Leck, 2013: Cloud and boundary layer interactions over the Arctic sea ice in late summer. Atmos. Chem. Phys., 13, 9379-9400.
  8. de Boer, G., M. D. Shupe, P. M. Caldwall, S. E. Bauer, O. Persson, J. S. Boyle, M. Kelley, S. A. Klein, and M. Tjernström, 2014: Near-surface meteorology during the Arctic Surface Cloud Ocean Study (ASCOS): Evaluation of reanalyses and global climate models. Atmos. Chem. Phys., 14, 427-445, doi:10.5194/acp-14-427-2014.
  9. Tjernstrom, M., and Coauthors (including M. D. Shupe), 2014: The Arctic Summer Cloud Ocean Study (ASCOS): Overview and experimental design. Atmos. Chem. Phys., 14, 2823-2869, doi:10.5194/acp-14-2823-2014.
  10. Sedlar, J. and M. D. Shupe, 2014: Characteristic nature of vertical motions observed in Arctic mixed-phase stratocumulus. Atmos. Chem. Phys., 14, 3461-3478, doi:10.5194/acp-14-3461-2014.
  11. Sotiropoulou, G., J. Sedlar, M. Tjernström, M. D. Shupe, I. M. Brooks, and P. O. G. Persson, 2014: The thermodynamic structure of summer Arctic stratocumulus and the dynamic coupling to the surface. Atmos. Chem. Phys. Diss., 14, 3815-3874, doi:10.5194/acpd-14-3815-2014.

Presentations and Posters

  1. ASCOS Workshop 2009
    Clouds during ASCOS.
    Workshop presentation.
  2. AMS Polar Meteorology and Oceanography 2009
    Surface-based Remote-Sensing of Clouds during ASCOS.
  3. ASCOS Workshop 2010
    Cloud Microphysical-Dynamical Processes.
  4. AMS Cloud Physics Conference 2010
    Dynamical-Microphysical Interactions in Arctic Mixed-Phase Clouds.

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