TY - GEN
T1 - Ice cloud microphysical properties in tropical Pacific regions derived from CloudSat and CALIPSO measurements
AU - Takahashi, Naoya
AU - Hayasaka, Tadahiro
AU - Okamoto, Hajime
N1 - Funding Information:
The present study was partially supported by Grant-in-Aid for Scientific Research (B) 16H04046 from MEXT, Japan.
Publisher Copyright:
© 2017 Author(s).
PY - 2017/2/22
Y1 - 2017/2/22
N2 - We revealed the difference in tropical ice cloud microphysical properties between the western Pacific (WP) and the eastern Pacific (EP), based on satellite retrievals. Vertical profile of effective particle radius of ice cloud (re) was estimated from active sensors on board CloudSat and CALIPSO satellites. In this study, we focused only on ice cloud which is defined as clouds with the cloud top temperature lower than 0°C. To investigate the relationship between cloud optical properties and cloud vertical structures, these ice clouds were classified into five types based on cloud optical thickness values. Compared the vertical profile of re in WP with that in the EP, re around the freezing level within convective cloud in EP slightly larger than that in WP. This analysis also shows that re of optically thick cloud is larger than that of optically thin cloud. The difference in re may be caused by differences in moisture convergence, upward motion, aerosols.
AB - We revealed the difference in tropical ice cloud microphysical properties between the western Pacific (WP) and the eastern Pacific (EP), based on satellite retrievals. Vertical profile of effective particle radius of ice cloud (re) was estimated from active sensors on board CloudSat and CALIPSO satellites. In this study, we focused only on ice cloud which is defined as clouds with the cloud top temperature lower than 0°C. To investigate the relationship between cloud optical properties and cloud vertical structures, these ice clouds were classified into five types based on cloud optical thickness values. Compared the vertical profile of re in WP with that in the EP, re around the freezing level within convective cloud in EP slightly larger than that in WP. This analysis also shows that re of optically thick cloud is larger than that of optically thin cloud. The difference in re may be caused by differences in moisture convergence, upward motion, aerosols.
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U2 - 10.1063/1.4975529
DO - 10.1063/1.4975529
M3 - Conference contribution
AN - SCOPUS:85015822606
T3 - AIP Conference Proceedings
BT - Radiation Processes in the Atmosphere and Ocean, IRS 2016
A2 - Schmutz, Werner
A2 - Davies, Roger
A2 - Egli, Luca
PB - American Institute of Physics Inc.
T2 - International Radiation Symposium 2016: Radiation Processes in the Atmosphere and Ocean, IRS 2016
Y2 - 16 April 2016 through 22 April 2016
ER -