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Title: Developing and bounding ice particle mass- and area-dimension expressions for use in atmospheric models and remote sensing

Abstract

Here, ice particle mass- and projected area-dimension ( m- D and A- D) power laws are commonly used in the treatment of ice cloud microphysical and optical properties and the remote sensing of ice cloud properties. Although there has long been evidence that a single m- D or A- D power law is often not valid over all ice particle sizes, few studies have addressed this fact. This study develops self-consistent m- D and A- D expressions that are not power laws but can easily be reduced to power laws for the ice particle size (maximum dimension or D) range of interest, and they are valid over a much larger D range than power laws. This was done by combining ground measurements of individual ice particle m and D formed at temperature T < –20 °C during a cloud seeding field campaign with 2-D stereo (2D-S) and cloud particle imager (CPI) probe measurements of D and A, and estimates of m, in synoptic and anvil ice clouds at similar temperatures. The resulting m- D and A- D expressions are functions of temperature and cloud type (synoptic vs. anvil), and are in good agreement with m- D power laws developed frommore » recent field studies considering the same temperature range (–60 °C < T < –20 °C).« less

Authors:
 [1];  [2]
  1. Desert Research Institute, Reno, NV (United States); Univ. of Nevada, Reno, NV (United States).
  2. Desert Research Institute, Reno, NV (United States)
Publication Date:
Research Org.:
Desert Research Institute (DRI), Nevada System of Higher Education, Reno,NV (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
OSTI Identifier:
1258751
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Atmospheric Chemistry and Physics (Online)
Additional Journal Information:
Journal Volume: 16; Journal Issue: 7; Journal ID: ISSN 1680-7324
Publisher:
European Geosciences Union
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES

Citation Formats

Erfani, Ehsan, and Mitchell, David L. Developing and bounding ice particle mass- and area-dimension expressions for use in atmospheric models and remote sensing. United States: N. p., 2016. Web. doi:10.5194/acp-16-4379-2016.
Erfani, Ehsan, & Mitchell, David L. Developing and bounding ice particle mass- and area-dimension expressions for use in atmospheric models and remote sensing. United States. doi:10.5194/acp-16-4379-2016.
Erfani, Ehsan, and Mitchell, David L. Thu . "Developing and bounding ice particle mass- and area-dimension expressions for use in atmospheric models and remote sensing". United States. doi:10.5194/acp-16-4379-2016. https://www.osti.gov/servlets/purl/1258751.
@article{osti_1258751,
title = {Developing and bounding ice particle mass- and area-dimension expressions for use in atmospheric models and remote sensing},
author = {Erfani, Ehsan and Mitchell, David L.},
abstractNote = {Here, ice particle mass- and projected area-dimension (m-D and A-D) power laws are commonly used in the treatment of ice cloud microphysical and optical properties and the remote sensing of ice cloud properties. Although there has long been evidence that a single m-D or A-D power law is often not valid over all ice particle sizes, few studies have addressed this fact. This study develops self-consistent m-D and A-D expressions that are not power laws but can easily be reduced to power laws for the ice particle size (maximum dimension or D) range of interest, and they are valid over a much larger D range than power laws. This was done by combining ground measurements of individual ice particle m and D formed at temperature T < –20 °C during a cloud seeding field campaign with 2-D stereo (2D-S) and cloud particle imager (CPI) probe measurements of D and A, and estimates of m, in synoptic and anvil ice clouds at similar temperatures. The resulting m-D and A-D expressions are functions of temperature and cloud type (synoptic vs. anvil), and are in good agreement with m-D power laws developed from recent field studies considering the same temperature range (–60 °C < T < –20 °C).},
doi = {10.5194/acp-16-4379-2016},
journal = {Atmospheric Chemistry and Physics (Online)},
issn = {1680-7324},
number = 7,
volume = 16,
place = {United States},
year = {2016},
month = {4}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 11 works
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