Retrieval of cloud microphysics parameters from spaceborne 94/220GHz dual-frequency cloud radar based on non-spherical ice particles

频率（GHz）	13.4，35.6，85.5，94，118，150，166，183，220，340
温度（⁰C）	0，-10，-20，-30，-40
形状	编号	英文全称	英文简称
长柱	0	hexagonal long column	hexl
短柱	1	hexagonal short column	hexs
厚柱	2	hexagonal block column	hexb
厚板	3	hexagonal thickplate	hexf
薄板	4	hexagonal thin plate	hexp
三瓣子弹花	5	3-bullet rosette	ros3
四瓣子弹花	6	4-bullet rosette	ros4
五瓣子弹花	7	5-bullet rosette	ros5
六瓣子弹花	8	6-bullet rosette	ros6
星状雪花	9	sector snowflake	sstr
树枝状雪花	10	dendrite snowflake	sden

Table 2. Retrieval error of cloud microphysical parameters（%）
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Table 2. Retrieval error of cloud microphysical parameters（%）
Type D₀ Log（N₀） IWC r_e
Sstr 1.9828e-04 7.5420e-05 1.9007e-04 1.9421e-04
Hexs 0.007 5 0.002 7 0.004 4 0.007 5
Ros3 9.2164e-04 4.0649e-04 0.0014 9.1078e-04

Table 3. Comparison between retrieval errors of increasing noise（+）or decreasing noise（-）
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Table 3. Comparison between retrieval errors of increasing noise（+）or decreasing noise（-）
Type +0.5 +1.0 +1.5 -0.5 -1.0 -1.5
Sstr 15.834 3 35.144 4 59.130 8 13.177 6 24.275 0 33.712 7
hexs 40.109 0 119.231 6 326.661 5 20.687 9 35.422 9 46.935 7
Ros3 19.994 1 46.940 0 86.285 4 15.532 0 27.953 8 38.094 1

Table 4. Retrieval error of ice water content with different particle size parameters

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Table 4. Retrieval error of ice water content with different particle size parameters

	D0=0.03	D0=0.04	D0=0.05	D0=0.06
N0=1 $\times$ 10⁵	12.353 4	12.725 0	13.380 8	14.270 7
N0=3 $\times$ 10⁵	12.658 9	13.794 3	15.834 3	18.616 1
N0=5 $\times$ 10⁵	12.967 4	14.895 0	18.423 1	23.206 6
N0=8 $\times$ 10⁵	13.436 2	16.611 0	22.578 7	30.419 0
N0=1 $\times$ 10⁶	13.752 8	17.800 8	25.550 8	35.337 2

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Qiong WU, Mei-Lin YANG, Hong-Gang YIN, Jian SHANG. Retrieval of cloud microphysics parameters from spaceborne 94/220GHz dual-frequency cloud radar based on non-spherical ice particles[J]. Journal of Infrared and Millimeter Waves, 2021, 40(5): 605

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Paper Information

Category: Research Articles

Received: Aug. 3, 2020

Accepted: --

Published Online: Sep. 29, 2021

The Author Email: Jian SHANG (shangjian@cma.gov.cn)

DOI:10.11972/j.issn.1001-9014.2021.05.006

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Characteristics of ice particles in Liu’s database

Table 1. Characteristics of ice particles in Liu’s database

Table 2. Retrieval error of cloud microphysical parameters（%）

Table 2. Retrieval error of cloud microphysical parameters（%）

Table 3. Comparison between retrieval errors of increasing noise（+）or decreasing noise（-）

Table 3. Comparison between retrieval errors of increasing noise（+）or decreasing noise（-）

Table 4. Retrieval error of ice water content with different particle size parameters

Table 4. Retrieval error of ice water content with different particle size parameters