Dr. Alek Aaron Petty

Dr. Alek Aaron Petty

  • Research Associate
  • 301.614.6120
  • NASA/GSFC
  • Employer: UNIVERSITY OF MARYLAND
  • Brief Bio

    Dr. Petty graduated with an MSci in Physics from the University of Bristol in 2010, and a PhD in Climate Science from University College London in 2014. Dr. Petty joined the University of Maryland (ESSIC) in 2014 and was hosted at the NOAA Center for Weather and Climate Prediction. Dr. Petty joined NASA's Operation IceBridge project science office at NASA Goddard in late 2015, where he primarily works on the analysis of IceBridge sea ice data, along with his other projects listed below.

    For more information, check out Dr. Petty's website at http://www.alekpetty.com

    Research Interests

    Sea ice variability

    I am principally interested in polar sea ice; the physics governing its mean state, the factors contributing to its spatial and temporal variability, and its coupling with the atmosphere and ocean. The transfer of heat, salt, water and momentum through sea ice is a key theme throughout much of my work. I utilize seaice models (of varying complexity) and sea ice observations (in-situ, airborne and satellite) to increase our understanding of these fundamental concepts. Research foci include:

    • Sea ice dynamics and momentum transfer
    • Idealized and high-resolution sea ice modelling
    • Extreme events in the polar regions
    • Sea ice prediction

    Positions/Employment

    7/2017 - Present

    Assistant Research Scientist

    Earth Systems Science Interdisciplinary Center (ESSIC), University of Maryland, NASA Goddard Space Flight Center
    10/2015 - 6/2017

    Research Associate

    Earth Systems Science Interdisciplinary Center (ESSIC), University of Maryland, NASA Goddard Space Flight Center
    2/2014 - 9/2015

    Research Associate

    Earth Systems Science Interdisciplinary Center (ESSIC), University of Maryland,, NOAA Center for Weather and Climate Prediction (NCWCP)

    Publications

    Refereed

    Petty, A. A., J. C. Stroeve, P. R. Holland, et al. L. N. Boisvert, A. C. Bliss, N. Kimura, and W. N. Meier. 2018. "The Arctic sea ice cover of 2016: a year of record-low highs and higher-than-expected lows." The Cryosphere, 12 (2): 433-452 [10.5194/tc-12-433-2018]

    Petty, A. A. 2018. "A Possible Link Between Winter Arctic Sea Ice Decline and a Collapse of the Beaufort High?" Geophysical Research Letters, [10.1002/2018gl077704]

    Petty, A. A., D. Schröder, J. C. Stroeve, et al. T. Markus, J. Miller, N. T. Kurtz, D. L. Feltham, and D. Flocco. 2017. "Skillful spring forecasts of September Arctic sea ice extent using passive microwave sea ice observations." Earth's Future, 5: 254–263 [10.1002/2016EF000495]

    Graham, R. M., L. Cohen, A. A. Petty, et al. L. N. Boisvert, A. Rinke, S. R. Hudson, M. Nicolaus, and M. A. Granskog. 2017. "Increasing frequency and duration of Arctic winter warming events." Geophysical Research Letters, 44: [10.1002/2017gl073395]

    Armitage, T. W., S. Bacon, A. L. Ridout, et al. A. A. Petty, S. Wolbach, and M. Tsamados. 2017. "Arctic Ocean geostrophic circulation 2003-2014." The Cryosphere, 11: 1767-1780 [10.5194/tc-2017-22]

    Petty, A. A., M. C. Tsamados, and N. T. Kurtz. 2017. "Atmospheric form drag coefficients over Arctic sea ice using remotely sensed ice topography data, spring 2009-2015." Journal of Geophysical Research: Earth Surface, 122: [10.1002/2017jf004209]

    Cole, S. T., J. M. Toole, R. Lele, et al. M.-L. Timmermans, S. G. Gallaher, T. P. Stanton, W. J. Shaw, B. Hwang, T. Maksym, J. P. Wilkinson, M. Ortiz, H. Graber, L. Rainville, A. A. Petty, S. L. Farrell, J. A. Richter-Menge, C. Haas, J. W. Deming, and J. Thomson. 2017. "Ice and ocean velocity in the Arctic marginal ice zone: Ice roughness and momentum transfer." Elem Sci Anth, 5: [10.1525/elementa.241]

    Petty, A. A., J. K. Hutchings, J. A. Richter-Menge, and M. A. Tschudi. 2016. "Sea ice circulation around the Beaufort Gyre: The changing role of wind forcing and the sea ice state." Journal of Geophysical Research: Oceans, 121 (5): 3278-3296 [10.1002/2015jc010903]

    Petty, A. A., M. C. Tsamados, N. T. Kurtz, et al. S. L. Farrell, T. Newman, J. P. Harbeck, D. L. Feltham, and J. A. Richter-Menge. 2016. "Characterizing Arctic sea ice topography using high-resolution IceBridge data." The Cryosphere, 10 (3): 1161-1179 [10.5194/tc-10-1161-2016]

    Boisvert, L. N., A. A. Petty, and J. C. Stroeve. 2016. "The Impact of the Extreme Winter 2015/16 Arctic Cyclone on the Barents–Kara Seas." Monthly Weather Review, [http://dx.doi.org/10.1175/MWR-D-16-0234.1]

    Tsamados, M., D. Feltham, A. Petty, D. Schroeder, and D. Flocco. 2015. "Processes controlling surface, bottom and lateral melt of Arctic sea ice in a state of the art sea ice model." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 373 (2052): 20140167 [10.1098/rsta.2014.0167]

    Petty, A. A., P. R. Holland, and D. L. Feltham. 2014. "Sea ice and the ocean mixed layer over the Antarctic shelf seas." The Cryosphere, 8 (2): 761-783 [10.5194/tc-8-761-2014]

    Petty, A. A., D. L. Feltham, and P. R. Holland. 2013. "Impact of Atmospheric Forcing on Antarctic Continental Shelf Water Masses." Journal of Physical Oceanography, 43 (5): 920-940 [10.1175/jpo-d-12-0172.1]

    Non-Refereed

    Petty, A. A., M. Webster, L. Boisvert, and T. Markus. 2018. "The NASA Eulerian Snow on Sea Ice Model (NESOSIM): Initial modeldevelopment and analysis." Geoscientific Model Development Discussions 1-47 (Submitted) [10.5194/gmd-2018-84]

    Petty, A. A., T. Markus, and N. T. Kurtz. 2017. "Improving our understanding of Antarctic sea ice with NASA's Operation IceBridge and the upcoming ICESat-2 mission." US CLIVAR Variations 15 (3):

    Brief Bio

    Dr. Petty graduated with an MSci in Physics from the University of Bristol in 2010, and a PhD in Climate Science from University College London in 2014. Dr. Petty joined the University of Maryland (ESSIC) in 2014 and was hosted at the NOAA Center for Weather and Climate Prediction. Dr. Petty joined NASA's Operation IceBridge project science office at NASA Goddard in late 2015, where he primarily works on the analysis of IceBridge sea ice data, along with his other projects listed below.

    For more information, check out Dr. Petty's website at http://www.alekpetty.com

    Publications

    Refereed

    Petty, A. A., J. C. Stroeve, P. R. Holland, et al. L. N. Boisvert, A. C. Bliss, N. Kimura, and W. N. Meier. 2018. "The Arctic sea ice cover of 2016: a year of record-low highs and higher-than-expected lows." The Cryosphere 12 (2): 433-452 [10.5194/tc-12-433-2018]

    Petty, A. A. 2018. "A Possible Link Between Winter Arctic Sea Ice Decline and a Collapse of the Beaufort High?" Geophysical Research Letters [10.1002/2018gl077704]

    Petty, A. A., D. Schröder, J. C. Stroeve, et al. T. Markus, J. Miller, N. T. Kurtz, D. L. Feltham, and D. Flocco. 2017. "Skillful spring forecasts of September Arctic sea ice extent using passive microwave sea ice observations." Earth's Future 5 254–263 [10.1002/2016EF000495]

    Graham, R. M., L. Cohen, A. A. Petty, et al. L. N. Boisvert, A. Rinke, S. R. Hudson, M. Nicolaus, and M. A. Granskog. 2017. "Increasing frequency and duration of Arctic winter warming events." Geophysical Research Letters 44 [10.1002/2017gl073395]

    Armitage, T. W., S. Bacon, A. L. Ridout, et al. A. A. Petty, S. Wolbach, and M. Tsamados. 2017. "Arctic Ocean geostrophic circulation 2003-2014." The Cryosphere 11 1767-1780 [10.5194/tc-2017-22]

    Petty, A. A., M. C. Tsamados, and N. T. Kurtz. 2017. "Atmospheric form drag coefficients over Arctic sea ice using remotely sensed ice topography data, spring 2009-2015." Journal of Geophysical Research: Earth Surface 122 [10.1002/2017jf004209]

    Cole, S. T., J. M. Toole, R. Lele, et al. M.-L. Timmermans, S. G. Gallaher, T. P. Stanton, W. J. Shaw, B. Hwang, T. Maksym, J. P. Wilkinson, M. Ortiz, H. Graber, L. Rainville, A. A. Petty, S. L. Farrell, J. A. Richter-Menge, C. Haas, J. W. Deming, and J. Thomson. 2017. "Ice and ocean velocity in the Arctic marginal ice zone: Ice roughness and momentum transfer." Elem Sci Anth 5 [10.1525/elementa.241]

    Petty, A. A., J. K. Hutchings, J. A. Richter-Menge, and M. A. Tschudi. 2016. "Sea ice circulation around the Beaufort Gyre: The changing role of wind forcing and the sea ice state." Journal of Geophysical Research: Oceans 121 (5): 3278-3296 [10.1002/2015jc010903]

    Petty, A. A., M. C. Tsamados, N. T. Kurtz, et al. S. L. Farrell, T. Newman, J. P. Harbeck, D. L. Feltham, and J. A. Richter-Menge. 2016. "Characterizing Arctic sea ice topography using high-resolution IceBridge data." The Cryosphere 10 (3): 1161-1179 [10.5194/tc-10-1161-2016]

    Boisvert, L. N., A. A. Petty, and J. C. Stroeve. 2016. "The Impact of the Extreme Winter 2015/16 Arctic Cyclone on the Barents–Kara Seas." Monthly Weather Review [http://dx.doi.org/10.1175/MWR-D-16-0234.1]

    Tsamados, M., D. Feltham, A. Petty, D. Schroeder, and D. Flocco. 2015. "Processes controlling surface, bottom and lateral melt of Arctic sea ice in a state of the art sea ice model." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 373 (2052): 20140167 [10.1098/rsta.2014.0167]

    Petty, A. A., P. R. Holland, and D. L. Feltham. 2014. "Sea ice and the ocean mixed layer over the Antarctic shelf seas." The Cryosphere 8 (2): 761-783 [10.5194/tc-8-761-2014]

    Petty, A. A., D. L. Feltham, and P. R. Holland. 2013. "Impact of Atmospheric Forcing on Antarctic Continental Shelf Water Masses." Journal of Physical Oceanography 43 (5): 920-940 [10.1175/jpo-d-12-0172.1]

    Non-Refereed

    Petty, A. A., M. Webster, L. Boisvert, and T. Markus. 2018. "The NASA Eulerian Snow on Sea Ice Model (NESOSIM): Initial modeldevelopment and analysis." Geoscientific Model Development Discussions (Submitted) 1-47 [10.5194/gmd-2018-84]

    Petty, A. A., T. Markus, and N. T. Kurtz. 2017. "Improving our understanding of Antarctic sea ice with NASA's Operation IceBridge and the upcoming ICESat-2 mission." US CLIVAR Variations 15 (3):

                                                                                                                                                                                            
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