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DOI	10.5194/acp-23-2199-2023
	On the global relationship between polarimetric radio occultation differential phase shift and ice water content
	Padulles, Ramon; Cardellach, Estel; Turk, F. Joseph
发表日期	2023
ISSN	1680-7316
EISSN	1680-7324
起始页码	2199
结束页码	2214
卷号	23 期号:3 页码:16
英文摘要	The Radio Occultations and Heavy Precipitation (ROHP) experiment aboard the Spanish PAZ satellite was deployed in 2018 with the objective of demonstrating the ability of the polarimetric radio occultation measurement (PRO) concept in detecting rain (liquid-phase precipitation). Analysis of these data has also demonstrated the ability of PRO to detect horizontally oriented frozen-phase precipitation. To verify these observations, a global climatological comparison is performed using the CloudSat (94 GHz) radar as a reference for different heights and taking into account the radio occultation (limb-based) viewing geometry. A robust relationship (e.g., high correlation coefficient) is found between the polarimetric radio occultation observable differential phase shift (& UDelta;phi) and the integrated ice water content (IWC) along the rays, globally, and for heights above freezing level. PAZ observations capture the major precipitation features and the signatures of the Intertropical Convergence Zone. The correlation coefficients maximize for tropical oceans, for a range of heights between 5 and 12 km. The ratios between & UDelta;phi and along-ray integrated IWC mean that climatologies are found to be within the range 0.03-0.09 mm kg-1 m2, although uncertainty due to the IWC retrieval algorithm must be noted. Further evaluation of the ratios with single-particle forward-scattering simulations indicate that the scattering by frozen hydrometeors with a combination of effective densities, axis ratios, and tilt angle distribution yield results that agree well with the observations. Overall, the global climatological results obtained in this study show the presence of horizontally oriented particles across the whole globe and for a wide range of height layers.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000936597000001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/272976
作者单位	Consejo Superior de Investigaciones Cientificas (CSIC); CSIC - Instituto de Ciencias del Espacio (ICE); Institut d'Estudis Espacials de Catalunya (IEEC); California Institute of Technology; National Aeronautics & Space Administration (NASA); NASA Jet Propulsion Laboratory (JPL)
推荐引用方式 GB/T 7714	Padulles, Ramon,Cardellach, Estel,Turk, F. Joseph. On the global relationship between polarimetric radio occultation differential phase shift and ice water content[J],2023,23(3):16.
APA	Padulles, Ramon,Cardellach, Estel,&Turk, F. Joseph.(2023).On the global relationship between polarimetric radio occultation differential phase shift and ice water content.ATMOSPHERIC CHEMISTRY AND PHYSICS,23(3),16.
MLA	Padulles, Ramon,et al."On the global relationship between polarimetric radio occultation differential phase shift and ice water content".ATMOSPHERIC CHEMISTRY AND PHYSICS 23.3(2023):16.