气候变化领域集成服务门户(CCPortal): Wavelet Analysis of Properties of Marine Boundary Layer Mesoscale Cells Observed From AMSR-E

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DOI	10.1029/2021JD034666
	Wavelet Analysis of Properties of Marine Boundary Layer Mesoscale Cells Observed From AMSR-E
	Zhou X.; Bretherton C.S.; Eastman R.; McCoy I.L.; Wood R.
发表日期	2021
ISSN	2169-897X
卷号	126 期号:14
英文摘要	Marine boundary layer clouds tend to organize into closed or open mesoscale cellular convection (MCC). Here, two-dimensional wavelet analysis is applied for the first time to passive microwave retrievals of cloud water path (CWP), water vapor path (WVP), and rain rate (RR) from Advanced Microwave Scanning Radiometer for Earth Observing System in 2008 over the Northeast and Southeast Pacific, and the Southeast Atlantic subtropical stratocumulus to cumulus transition regions. The (co-)variability between CWP, WVP, and RR in 160 × 160 km2 analysis boxes is partitioned between four mesoscale wavelength octaves (20, 40, 80, and 160 km). The cell scale is identified as the wavelength of the peak CWP variance. Together with a machine-learning classification of cell type, this allows the statistical characteristics of open and closed MCC of various scales, and its relation to WVP, RR, and potential environmental controlling factors to be analyzed across a very large set of cases. The results show that the cell wavelength is most commonly 40–80 km. Cell-scale CWP perturbations are good predictors of the WVP and RR perturbations. For cells larger than 20 km, there is no obvious dependence of cell scale on the environmental controlling factors tested, suggesting that the cell scale may depend more on its historical evolution than the current environmental conditions. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	AMSR-E; machine learning; marine low clouds; mesoscale cellular convection; open and closed cells; wavelet transform
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/237163
作者单位	Department of Atmospheric Sciences, University of Washington, Seattle, WA, United States; Now at NOAA Chemical Sciences Laboratory (CSL), Boulder, CO, United States; Now at Cooperative Institute for Research in Environmental Sciences (CIRES), University of Colorado, Boulder, CO, United States; Now at Rosenstiel School of Marine and Atmospheric Sciences, University of Miami, Miami, FL, United States
推荐引用方式 GB/T 7714	Zhou X.,Bretherton C.S.,Eastman R.,et al. Wavelet Analysis of Properties of Marine Boundary Layer Mesoscale Cells Observed From AMSR-E[J],2021,126(14).
APA	Zhou X.,Bretherton C.S.,Eastman R.,McCoy I.L.,&Wood R..(2021).Wavelet Analysis of Properties of Marine Boundary Layer Mesoscale Cells Observed From AMSR-E.Journal of Geophysical Research: Atmospheres,126(14).
MLA	Zhou X.,et al."Wavelet Analysis of Properties of Marine Boundary Layer Mesoscale Cells Observed From AMSR-E".Journal of Geophysical Research: Atmospheres 126.14(2021).