Ice Hydrometeor Shape Estimations Using Polarimetric Operational and Research Radar Measurements

Matrosov, Sergey Y.

doi:10.3390/atmos11010097

Ice Hydrometeor Shape Estimations Using Polarimetric Operational and Research Radar Measurements

Journal Article · Mon Jan 13 23:00:00 EST 2020 · Atmosphere (Basel)

DOI:https://doi.org/10.3390/atmos11010097· OSTI ID:1673396

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University of Colorado and NOAA Earth System Research Laboratory, Boulder, CO (United States); University of Colorado

A polarimetric radar method to estimate mean shapes of ice hydrometeors was applied to several snowfall and ice cloud events observed by operational and research weather radars. The hydrometeor shape information is described in terms of their aspect ratios, r, which represent the ratio of particle minor and major dimensions. The method is based on the relations between depolarization ratio (DR) estimates and aspect ratios. DR values, which are a proxy for circular depolarization ratio, were reconstructed from radar variables of reflectivity factor, Z_e, differential reflectivity, Z_DR, and copolar correlation coefficient ρhv, which are available from radar systems operating in either simultaneous or alternate transmutation of horizontally and vertically polarized signals. DR-r relations were developed for retrieving aspect ratios and their sensitivity to different assumptions and model uncertainties were discussed. To account for changing particle bulk density, which is a major contributor to the retrieval uncertainty, an approach is suggested to tune the DR-r relations using reflectivity-based estimates of characteristic hydrometeor size. The analyzed events include moderate snowfall observed by an operational S-band weather radar and a precipitating ice cloud observed by a scanning K_a-band cloud radar at an Arctic location. Uncertainties of the retrievals are discussed.

View Accepted Manuscript (DOE)

Research Organization:: University of Colorado, Boulder, CO (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Biological and Environmental Research (BER). Earth and Environmental Systems Science Division; National Science Foundation

Grant/Contract Number:: SC0013306

OSTI ID:: 1673396

Journal Information:: Atmosphere (Basel), Journal Name: Atmosphere (Basel) Journal Issue: 1 Vol. 11; ISSN 2073-4433

Publisher:: MDPICopyright Statement

Country of Publication:: United States

Language:: English

References (30)

Dual-polarization radar signatures in snowstorms: Role of snowflake aggregation: RADAR SIGNATURES IN SNOWSTORMS Moisseev, Dmitri N.; Lautaportti, Susanna; Tyynela, Jani Journal of Geophysical Research: Atmospheres, Vol. 120, Issue 24 https://doi.org/10.1002/2015JD023884	journal	December 2015
The dependence of the radiative characteristics of optically thick media on the shape of particles Kokhanovsky, Alexander A.; Macke, Andreas Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 63, Issue 2-6 https://doi.org/10.1016/S0022-4073(99)00027-8	journal	September 1999
CloudSat spaceborne 94 GHz radar bright bands in the melting layer: An attenuation-driven upside-down lidar analog: CLOUDSAT MELTING LAYER RADAR BRIGHT BANDS Sassen, Kenneth; Matrosov, Sergey; Campbell, James Geophysical Research Letters, Vol. 34, Issue 16 https://doi.org/10.1029/2007GL030291	journal	August 2007
Relations Among Linear and Circulur Polarization Parameters Measured in Canted Hydrometeors Jameson, A. R. Journal of Atmospheric and Oceanic Technology, Vol. 4, Issue 4 https://doi.org/10.1175/1520-0426(1987)004<0634:RALACP>2.0.CO;2	journal	December 1987
Depolarization Estimates from Linear H and V Measurements with Weather Radars Operating in Simultaneous Transmission–Simultaneous Receiving Mode Matrosov, Sergey Y. Journal of Atmospheric and Oceanic Technology, Vol. 21, Issue 4 https://doi.org/10.1175/1520-0426(2004)021<0574:DEFLHA>2.0.CO;2	journal	April 2004
Evaluation of a 45° Slant Quasi-Linear Radar Polarization State for Distinguishing Drizzle Droplets, Pristine Ice Crystals, and Less Regular Ice Particles Reinking, Roger F.; Matrosov, Sergey Y.; Kropfli, Robert A. Journal of Atmospheric and Oceanic Technology, Vol. 19, Issue 3 https://doi.org/10.1175/1520-0426-19.3.296	journal	March 2002
A Dual-Wavelength Radar Method to Measure Snowfall Rate Matrosov, Sergey Y. Journal of Applied Meteorology, Vol. 37, Issue 11 https://doi.org/10.1175/1520-0450(1998)037<1510:ADWRMT>2.0.CO;2	journal	November 1998
On the Use of Radar Depolarization Ratios for Estimating Shapes of Ice Hydrometeors in Winter Clouds Matrosov, Sergey Y.; Reinking, Roger F.; Kropfli, Robert A. Journal of Applied Meteorology, Vol. 40, Issue 3 https://doi.org/10.1175/1520-0450(2001)040<0479:OTUORD>2.0.CO;2	journal	March 2001
Variability of Microphysical Parameters in High-Altitude Ice Clouds: Results of the Remote Sensing Method Matrosov, Sergey Y. Journal of Applied Meteorology, Vol. 36, Issue 6 https://doi.org/10.1175/1520-0450-36.6.633	journal	June 1997
Theoretical Study of Radar Polarization Parameters Obtained from Cirrus Clouds Matrosov, Sergey Y. Journal of the Atmospheric Sciences, Vol. 48, Issue 8 https://doi.org/10.1175/1520-0469(1991)048<1062:TSORPP>2.0.CO;2	journal	April 1991
Cloud Microphysics Retrieval Using S-band Dual-Polarization Radar Measurements Vivekanandan, J.; Ellis, S. M.; Oye, R. Bulletin of the American Meteorological Society, Vol. 80, Issue 3 https://doi.org/10.1175/1520-0477(1999)080<0381:CMRUSB>2.0.CO;2	journal	March 1999
Snowfall Retrievals Using Millimeter-Wavelength Cloud Radars Matrosov, Sergey Y.; Shupe, Matthew D.; Djalalova, Irina V. Journal of Applied Meteorology and Climatology, Vol. 47, Issue 3 https://doi.org/10.1175/2007JAMC1768.1	journal	March 2008
A Theory-Based Hydrometeor Identification Algorithm for X-Band Polarimetric Radars Dolan, Brenda; Rutledge, Steven A. Journal of Atmospheric and Oceanic Technology, Vol. 26, Issue 10 https://doi.org/10.1175/2009JTECHA1208.1	journal	October 2009
Assessing Snowfall Rates from X-Band Radar Reflectivity Measurements Matrosov, Sergey Y.; Campbell, Carroll; Kingsmill, David Journal of Atmospheric and Oceanic Technology, Vol. 26, Issue 11 https://doi.org/10.1175/2009JTECHA1238.1	journal	November 2009
S-Band Dual-Polarization Radar Observations of Winter Storms Kennedy, Patrick C.; Rutledge, Steven A. Journal of Applied Meteorology and Climatology, Vol. 50, Issue 4 https://doi.org/10.1175/2010JAMC2558.1	journal	April 2011
Radar Scattering from Ice Aggregates Using the Horizontally Aligned Oblate Spheroid Approximation Hogan, Robin J.; Tian, Lin; Brown, Philip R. A. Journal of Applied Meteorology and Climatology, Vol. 51, Issue 3 https://doi.org/10.1175/JAMC-D-11-074.1	journal	March 2012
Estimation of Depolarization Ratio Using Weather Radars with Simultaneous Transmission/Reception Ryzhkov, Alexander; Matrosov, Sergey Y.; Melnikov, Valery Journal of Applied Meteorology and Climatology, Vol. 56, Issue 7 https://doi.org/10.1175/JAMC-D-16-0098.1	journal	June 2017
Microphysical Properties of Snow and Their Link to Z _e – S Relations during BAECC 2014 von Lerber, Annakaisa; Moisseev, Dmitri; Bliven, Larry F. Journal of Applied Meteorology and Climatology, Vol. 56, Issue 6 https://doi.org/10.1175/JAMC-D-16-0379.1	journal	June 2017
Empirical Relations between Size Parameters of Ice Hydrometeor Populations and Radar Reflectivity Matrosov, Sergey Y.; Heymsfield, Andrew J. Journal of Applied Meteorology and Climatology, Vol. 56, Issue 9 https://doi.org/10.1175/JAMC-D-17-0076.1	journal	August 2017
Polarimetric Radar Relations for Quantification of Snow Based on Disdrometer Data Bukovčić, Petar; Ryzhkov, Alexander; Zrnić, Dusan Journal of Applied Meteorology and Climatology, Vol. 57, Issue 1 https://doi.org/10.1175/JAMC-D-17-0090.1	journal	January 2018
Observational and Modeling Study of Ice Hydrometeor Radar Dual-Wavelength Ratios Matrosov, Sergey Y.; Maahn, Maximilian; de Boer, Gijs Journal of Applied Meteorology and Climatology, Vol. 58, Issue 9 https://doi.org/10.1175/JAMC-D-19-0018.1	journal	September 2019
Inferring Fall Attitudes of Pristine Dendritic Crystals from Polarimetric Radar Data Matrosov, Sergey Y.; Reinking, Roger F.; Djalalova, Irina V. Journal of the Atmospheric Sciences, Vol. 62, Issue 1 https://doi.org/10.1175/JAS-3356.1	journal	January 2005
Ice Cloud Particle Size Distributions and Pressure-Dependent Terminal Velocities from In Situ Observations at Temperatures from 0° to −86°C Heymsfield, Andrew J.; Schmitt, Carl; Bansemer, Aaron Journal of the Atmospheric Sciences, Vol. 70, Issue 12 https://doi.org/10.1175/JAS-D-12-0124.1	journal	December 2013
Predicting Ice Shape Evolution in a Bulk Microphysics Model Jensen, Anders A.; Harrington, Jerry Y.; Morrison, Hugh Journal of the Atmospheric Sciences, Vol. 74, Issue 6 https://doi.org/10.1175/JAS-D-16-0350.1	journal	June 2017
Observations of Ice Crystal Habits with a Scanning Polarimetric W-Band Radar at Slant Linear Depolarization Ratio Mode Matrosov, Sergey Y.; Mace, Gerald G.; Marchand, Roger Journal of Atmospheric and Oceanic Technology, Vol. 29, Issue 8 https://doi.org/10.1175/JTECH-D-11-00131.1	journal	August 2012
Enhanced Radar Backscattering due to Oriented Ice Particles at 95 GHz during StormVEx Marchand, Roger; Mace, Gerald G.; Hallar, A. Gannet Journal of Atmospheric and Oceanic Technology, Vol. 30, Issue 10 https://doi.org/10.1175/JTECH-D-13-00005.1	journal	October 2013
Parameters of Cloud Ice Particles Retrieved from Radar Data Melnikov, Valery Journal of Atmospheric and Oceanic Technology, Vol. 34, Issue 3 https://doi.org/10.1175/JTECH-D-16-0123.1	journal	March 2017
Atmospheric Ice Particle Shape Estimates from Polarimetric Radar Measurements and In Situ Observations Matrosov, Sergey Y.; Schmitt, Carl G.; Maahn, Maximilian Journal of Atmospheric and Oceanic Technology, Vol. 34, Issue 12 https://doi.org/10.1175/JTECH-D-17-0111.1	journal	December 2017
Relationship between temperature and apparent shape of pristine ice crystals derived from polarimetric cloud radar observations during the ACCEPT campaign Myagkov, Alexander; Seifert, Patric; Wandinger, Ulla München : European Geopyhsical Union https://doi.org/10.34657/1216	null	January 2016
Relationship between temperature and apparent shape of pristine ice crystals derived from polarimetric cloud radar observations during the ACCEPT campaign Myagkov, Alexander; Seifert, Patric; Wandinger, Ulla Atmospheric Measurement Techniques, Vol. 9, Issue 8 https://doi.org/10.5194/amt-9-3739-2016	journal	January 2016