Characterizing ice particles using two-dimensional reflections of a lidar beam

Marissa Goerke; Zbigniew Ulanowski; Georg Ritter; Evelyn Hesse; Ryan Neely; Laurence Taylor; Robert Stillwell; Paul Kaye

doi:10.1364/AO.56.00G188

Characterizing ice particles using two-dimensional reflections of a lidar beam

Marissa Goerke, Zbigniew Ulanowski, Georg Ritter, Evelyn Hesse, Ryan Neely, Laurence Taylor, Robert Stillwell, Paul Kaye

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

131 Downloads (Pure)

Abstract

We report a phenomenon manifesting itself as brief flashes of light on the snow surface near a lidar beam. The flashes are imaged and interpreted as specular reflection patterns from individual ice particles. Such patterns have two-dimensional structure, and are similar to those previously observed in forward scattering. Patterns are easiest to capture from particles with well-defined horizontal facets, such as near-horizontally aligned plates. The patterns and their position can be used to determine properties such as ice particle shape, size, roughness, alignment and altitude. Data obtained at Summit in Greenland shows the presence of regular hexagonal and scalene plates, columns and rounded plates of various sizes, among others.

Original language	English
Pages (from-to)	G188-G196
Journal	Applied Optics
Volume	56
Issue number	19
Early online date	1 May 2017
DOIs	https://doi.org/10.1364/AO.56.00G188
Publication status	Published - 1 Jul 2017

Keywords

Atmospheric optics
Scattering
Remote sensing
Ice crystals
Speckle

Access to Document

10.1364/AO.56.00G188Licence: CC BY

ao-56-19-G188Final published version, 1.76 MBLicence: CC BY

Cite this

@article{3b8f64707c394be2bb13bfdeaf24b7cd,

title = "Characterizing ice particles using two-dimensional reflections of a lidar beam",

abstract = "We report a phenomenon manifesting itself as brief flashes of light on the snow surface near a lidar beam. The flashes are imaged and interpreted as specular reflection patterns from individual ice particles. Such patterns have two-dimensional structure, and are similar to those previously observed in forward scattering. Patterns are easiest to capture from particles with well-defined horizontal facets, such as near-horizontally aligned plates. The patterns and their position can be used to determine properties such as ice particle shape, size, roughness, alignment and altitude. Data obtained at Summit in Greenland shows the presence of regular hexagonal and scalene plates, columns and rounded plates of various sizes, among others.",

keywords = "Atmospheric optics, Scattering, Remote sensing, Ice crystals, Speckle",

author = "Marissa Goerke and Zbigniew Ulanowski and Georg Ritter and Evelyn Hesse and Ryan Neely and Laurence Taylor and Robert Stillwell and Paul Kaye",

note = "This is an Open Access article published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article{\textquoteright}s title, journal citation, and DOI. {\textcopyright} 2017 Optical Society of America.",

year = "2017",

month = jul,

day = "1",

doi = "10.1364/AO.56.00G188",

language = "English",

volume = "56",

pages = "G188--G196",

journal = "Applied Optics",

issn = "1559-128X",

publisher = "The Optical Society",

number = "19",

}

TY - JOUR

T1 - Characterizing ice particles using two-dimensional reflections of a lidar beam

AU - Goerke, Marissa

AU - Ulanowski, Zbigniew

AU - Ritter, Georg

AU - Hesse, Evelyn

AU - Neely, Ryan

AU - Taylor, Laurence

AU - Stillwell, Robert

AU - Kaye, Paul

N1 - This is an Open Access article published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. © 2017 Optical Society of America.

PY - 2017/7/1

Y1 - 2017/7/1

N2 - We report a phenomenon manifesting itself as brief flashes of light on the snow surface near a lidar beam. The flashes are imaged and interpreted as specular reflection patterns from individual ice particles. Such patterns have two-dimensional structure, and are similar to those previously observed in forward scattering. Patterns are easiest to capture from particles with well-defined horizontal facets, such as near-horizontally aligned plates. The patterns and their position can be used to determine properties such as ice particle shape, size, roughness, alignment and altitude. Data obtained at Summit in Greenland shows the presence of regular hexagonal and scalene plates, columns and rounded plates of various sizes, among others.

AB - We report a phenomenon manifesting itself as brief flashes of light on the snow surface near a lidar beam. The flashes are imaged and interpreted as specular reflection patterns from individual ice particles. Such patterns have two-dimensional structure, and are similar to those previously observed in forward scattering. Patterns are easiest to capture from particles with well-defined horizontal facets, such as near-horizontally aligned plates. The patterns and their position can be used to determine properties such as ice particle shape, size, roughness, alignment and altitude. Data obtained at Summit in Greenland shows the presence of regular hexagonal and scalene plates, columns and rounded plates of various sizes, among others.

KW - Atmospheric optics

KW - Scattering

KW - Remote sensing

KW - Ice crystals

KW - Speckle

U2 - 10.1364/AO.56.00G188

DO - 10.1364/AO.56.00G188

M3 - Article

SN - 1559-128X

VL - 56

SP - G188-G196

JO - Applied Optics

JF - Applied Optics

IS - 19

ER -

Characterizing ice particles using two-dimensional reflections of a lidar beam

Abstract

Keywords

Access to Document

Fingerprint

Cite this