TY - JOUR
T1 - Effective ice particle densities for cold anvil cirrus
AU - Heymsfield, Andrew J.
AU - Schmitt, Carl G.
AU - Bansemer, Aaron
AU - Baumgardner, Darrel
AU - Weinstock, Elliot M.
AU - Smith, Jessica T.
AU - Sayres, David
PY - 2004/1/28
Y1 - 2004/1/28
N2 - This study derives effective ice particle densities (ρe) from data collected by the NASA WB-57F aircraft near the tops of Florida anvils during the Cirrus Regional Study of Tropical Anvils and Cirrus Layers (CRYSTAL) Florida Area Cirrus Experiment (FACE). The ρe-ice particle mass divided by the volume of an equivalent diameter liquid sphere-, is obtained for particle populations (̄ρe) and single sizes from a few to 200-300 μm in maximum dimension using measurements of condensed water content and particle size distributions. Density values are needed for numerical modeling of ice cloud microphysical properties and remote sensing retrievals, and have not up to now been characterized for cold ice clouds containing mixed particle habits. The ̄ρe decrease with increasing slopes of gamma size distributions fitted to the size distributions, ranging from 0.15 -0.91 g cm-3. For single sizes, ρe obeys a power-law with an exponent of about -0.4.
AB - This study derives effective ice particle densities (ρe) from data collected by the NASA WB-57F aircraft near the tops of Florida anvils during the Cirrus Regional Study of Tropical Anvils and Cirrus Layers (CRYSTAL) Florida Area Cirrus Experiment (FACE). The ρe-ice particle mass divided by the volume of an equivalent diameter liquid sphere-, is obtained for particle populations (̄ρe) and single sizes from a few to 200-300 μm in maximum dimension using measurements of condensed water content and particle size distributions. Density values are needed for numerical modeling of ice cloud microphysical properties and remote sensing retrievals, and have not up to now been characterized for cold ice clouds containing mixed particle habits. The ̄ρe decrease with increasing slopes of gamma size distributions fitted to the size distributions, ranging from 0.15 -0.91 g cm-3. For single sizes, ρe obeys a power-law with an exponent of about -0.4.
UR - https://www.scopus.com/pages/publications/18144443335
U2 - 10.1029/2003GL018311
DO - 10.1029/2003GL018311
M3 - Article
AN - SCOPUS:18144443335
SN - 0094-8276
VL - 31
SP - L02101 1-5
JO - Geophysical Research Letters
JF - Geophysical Research Letters
IS - 2
ER -