Cooperative Institute for Research in Environmental Sciences at the University of Colorado Boulder

Maximilian Maahn

Research Interests

  • Remote Sensing
  • Cloud Physics
  • Polar Regions
  • Retrieval Development

Maximilian Maahn joined NOAA PSL's Polar Observations and Processes (POP) Team in March 2016. Max works in Gijs de Boer's Oliktok Point (Alaska) Site Science project supported by the US Department of Energy. The project is about understanding processes related to Arctic clouds, aerosols and precipitation, radiation and their interactions. The interdisciplinary nature of the site science requires integration across multiple teams and divisions within NOAA and CU, providing a comprehensive set of expertise. Max's main research interests include enhancing radar observations of polar clouds and precipitation and understanding how clouds are influenced by aerosols through surface- and in-situ observations. Currently, he is investigating how local emissions from industrial facilities in Alaska can modify cloud properties.

 See my full profile on the NOAA PSL website

View Publications

  • Maahn, M; Hoffmann, F; Shupe, MD; de Boer, G; Matrosov, SY; Luke, EP (2019), Can liquid cloud microphysical processes be used for vertically pointing cloud radar calibration?. Version: 1 ATMOSPHERIC MEASUREMENT TECHNIQUES 12 (6) 3151-3171, issn: 1867-1381, doi: 10.5194/amt-12-3151-2019
  • Ghate, VP; Kollias, P; Crewell, S; Fridlind, AM; Heus, T; Loehnert, U; Maahn, M; McFarquhar, GM; Moisseev, D; Oue, M; Wendisch, M; Williams, C (2019), THE SECOND ARM TRAINING AND SCIENCE APPLICATION EVENT Training the Next Generation of Atmospheric Scientists. Version: 1 BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY 100 (1) ES5-ES9, issn: 0003-0007, doi: 10.1175/BAMS-D-18-0242.1
  • Acquistapace, C; Loehnert, U; Maahn, M; Kollias, P (2019), A New Criterion to Improve Operational Drizzle Detection with Ground-Based Remote Sensing. Version: 1 JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY 36 (5) 781-801, issn: 0739-0572, doi: 10.1175/JTECH-D-18-0158.1
  • Matrosov, SY; Maahn, M; De Boer, G (2019), Observational and Modeling Study of Ice Hydrometeor Radar Dual-Wavelength Ratios. Version: 1 JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY 58 (9) 2005-2017, issn: 1558-8424, doi: 10.1175/JAMC-D-19-0018.1
  • Solomon, A, G de Boer, JM Creamean, A McComiskey, MD Shupe, M Maahn and C Cox (2018), The relative impact of cloud condensation nuclei and ice nucleating particle concentrations on phase partitioning in Arctic mixed-phase stratocumulus clouds. Atmos. Chem. Phys. Version: 1 18 (23) 17047-17059, issn: 1680-7316, ids: HC6OB, doi: 10.5194/acp-18-17047-2018
  • Creamean, JM; Kirpes, RM; Pratt, KA; Spada, NJ; Maahn, M; de Boer, G; Schnell, RC; China, S (2018), Marine and terrestrial influences on ice nucleating particles during continuous springtime measurements in an Arctic oilfield location. Version: 1 ATMOSPHERIC CHEMISTRY AND PHYSICS 18 (24) 18023-18042, issn: 1680-7316, doi: 10.5194/acp-18-18023-2018
  • de Boer, G., M. Ivey, B. Schmid, D. Lawrence, D. Dexheimer, F. Mei, J. Hubbe, A. Bendure, J. Hardesty, M. D. Shupe, A. McComiskey, H. Telg, C. Schmitt, S. Y. Matrosov, I. Brooks, J. Creamean, A. Solomon, D. D. Turner, C. Williams, M. Maahn, B. Argrow, S. Palo, C. N. Long, R.-S. Gao, and J. Mather (2018), A Bird's-Eye View Development of an Operational ARM Unmanned Aerial Capability for Atmospheric Research in Arctic Alaska. Bull. Amer. Meteorol. Soc. Version: 1 99 (6) 1197-1212, issn: 0003-0007, ids: GL6FH, doi: 10.1175/BAMS-D-17-0156.1
  • Creamean, J. M., M. Maahn, G. de Boer, A. McComiskey, A. J. Sedlacek, and Y. Feng (2018), The influence of local oil exploration and regional wildfires on summer 2015 aerosol over the North Slope of Alaska. Atmos. Chem. Phys. Version: 1 18 (2) 555-570, issn: 1680-7316, ids: FT1PC, doi: 10.5194/acp-18-555-2018
  • Williams, C. R., M. Maahn, J. C. Hardin, and G. de Boer (2018), Clutter mitigation, multiple peaks, and high-order spectral moments in 35 GHz vertically pointing radar velocity spectra. Atmos. Meas. Tech. Version: 1 11 (9) 4963-4980, issn: 1867-1381, ids: GS2RC, doi: 10.5194/amt-11-4963-2018
  • Maahn, M., and U. Loehnert (2017), Potential of Higher-Order Moments and Slopes of the Radar Doppler Spectrum for Retrieving Microphysical and Kinematic Properties of Arctic Ice Clouds. J. Appl. Meteorol. Climatol. Version: 1 56 (2) 263-282, issn: 1558-8424, ids: EL3DT, doi: 10.1175/JAMC-D-16-0020.1
  • Buehl, J., S. Alexander, S. Crewell, A. Heymsfield, H. Kalesse, A. Khain, M. Maahn, K. Van-Tricht, and M. Wendisch (2017), Remote Sensing. AMS Monograph Ice Formation and Evolution in Clouds and Precipitation: Measurement and Modeling Challenges Version: 1 58 , Ed. Baumgardner, D; McFarquhar, GM; Heymsfield, AJ, issn: 0065-9401, ids: BJ2PW, isbn: 978-1-944970-26-0, doi: 10.1175/AMSMONOGRAPHS-D-16-0015.1
  • Acquistapace, C., S. Kneifel, U. Loehnert, P. Kollias, M. Maahn, and M. Bauer-Pfundstein (2017), Optimizing observations of drizzle onset with millimeter-wavelength radars. Atmos. Meas. Tech. Version: 1 10 (5) 1783-1802, issn: 1867-1381, ids: EU9BL, doi: 10.5194/amt-10-1783-2017
  • Maahn, M., G. de Boer, J. M. Creamean, G. Feingold, G. M. McFarquhar, W. Wu, and F. Mei (2017), The observed influence of local anthropogenic pollution on northern Alaskan cloud properties. Atmos. Chem. Phys. Version: 1 17 (23) 14709-14726, issn: 1680-7316, ids: FP4VB, doi: 10.5194/acp-17-14709-2017
  • Souverijns, N., A. Gossart, S. Lhermitte, I. V. Gorodetskaya, S. Kneifel, M. Maahn, F. L. Bliven, and N. P. M. van Lipzig (2017), Estimating radar reflectivity - Snowfall rate relationships and their uncertainties over Antarctica by combining disdrometer and radar observations. Atmos. Res. Version: 1 196 211-223, issn: 0169-8095, ids: FF8TH, doi: 10.1016/j.atmosres.2017.06.001
  • Matrosov, S. Y., C. G. Schmitt, M. Maahn, and G. de Boer (2017), Atmospheric Ice Particle Shape Estimates from Polarimetric Radar Measurements and In Situ Observations. J. Atmos. Ocean. Technol. Version: 1 34 (12) 2569-2587, issn: 0739-0572, ids: FT6SL, doi: 10.1175/JTECH-D-17-0111.1
  • Kneifel, S., P. Kollias, A. Battaglia, J. Leinonen, M. Maahn, H. Kalesse, and F. Tridon (2016), First observations of triple-frequency radar Doppler spectra in snowfall: Interpretation and applications. Geophys. Res. Lett. Version: 1 43 (5) 2225-2233, issn: 0094-8276, ids: DH9IN, doi: 10.1002/2015GL067618
  • Loehnert, U., J. H. Schween, C. Acquistapace, K. Ebell, M. Maahn, M. Barrera-Verdejo, A. Hirsikko, B. Bohn, A. Knaps, E. OConnor, C. Simmer, A. Wahner, and S. Crewell (2015), JOYCE Julich Observatory for Cloud Evolution. Bull. Amer. Meteorol. Soc. Version: 1 96 (7) 1157-1174, issn: 0003-0007, ids: CP4MB, doi: 10.1175/BAMS-D-14-00105.1
  • Gorodetskaya, I. V., S. Kneifel, M. Maahn, K. Van Tricht, W. Thiery, J. H. Schween, A. Mangold, S. Crewell, and N. P. M. Van Lipzig (2015), Cloud and precipitation properties from ground-based remote-sensing instruments in East Antarctica. Cryosphere Version: 1 9 (1) 285-304, issn: 1994-0416, ids: CC7NR, doi: 10.5194/tc-9-285-2015
  • Maahn, M., U. Loehnert, P. Kollias, R. C. Jackson, and G. M. McFarquhar (2015), Developing and Evaluating Ice Cloud Parameterizations for Forward Modeling of Radar Moments Using in situ Aircraft Observations. J. Atmos. Ocean. Technol. Version: 1 32 (5) 880-903, issn: 0739-0572, ids: CI5DF, doi: 10.1175/JTECH-D-14-00112.1
  • Maahn, M., C. Burgard, S. Crewell, I. V. Gorodetskaya, S. Kneifel, S. Lhermitte, K. Van Tricht and N. P. M. van Lipzig (2014), How does the spaceborne radar blind zone affect derived surface snowfall statistics in polar regions?. J. Geophys. Res.-Atmos. Version: 1 119 (24) 13604-13620, issn: 2169-897X, ids: AZ8IX, doi: 10.1002/2014JD022079
  • Maahn, M. and P. Kollias (2012), Improved Micro Rain Radar snow measurements using Doppler spectra post-processing. Atmos. Meas. Tech. Version: 1 5 (11) 2661-2673, issn: 1867-1381, ids: 046ZK, doi: 10.5194/amt-5-2661-2012
  • Kneifel, S., M. Maahn, G. Peters and C. Simmer (2011), Observation of snowfall with a low-power FM-CW K-band radar (Micro Rain Radar). Meteorol. Atmos. Phys. Version: 1 113 (2-Jan) 75-87, issn: 0177-7971, ids: 778ZQ, doi: 10.1007/s00703-011-0142-z