DOI: 10.1175/JCLI-D-14-00836.1
Scopus记录号: 2-s2.0-84960937112
论文题名: Cloud object analysis of CERES Aqua observations of tropical and subtropical cloud regimes: Four-year climatology
作者: Xu K.-M. ; Wong T. ; Dong S. ; Chen F. ; Kato S. ; Taylor P.C.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2016
卷: 29, 期: 5 起始页码: 1617
结束页码: 1638
语种: 英语
Scopus关键词: Boundary layers
; Climatology
; Clouds
; Physical properties
; Probability density function
; Rain
; Rain gages
; Boundary layer clouds
; Cirrus clouds
; Convective clouds
; Cumulus cloud
; Environmental conditions
; Probability density functions (PDFs)
; Radiative fluxes
; Tropical rainfall measuring missions
; Tropics
; Aqua (satellite)
; boundary layer
; cirrus
; climatology
; convective cloud
; cumulus
; meteorology
; radiative transfer
; TRMM
英文摘要: Four distinct types of cloud objects-tropical deep convection, boundary layer cumulus, stratocumulus, and overcast stratus-were previously identified from CERES Tropical Rainfall Measuring Mission (TRMM) data. Six additional types of cloud objects-cirrus, cirrocumulus, cirrostratus, altocumulus, transitional altocumulus, and solid altocumulus-are identified from CERES Aqua satellite data in this study. The selection criteria for the 10 cloud object types are based on CERES footprint cloud fraction and cloud-top pressure, as well as cloud optical depth for the high-cloud types. The cloud object is a contiguous region of the earth with a single dominant cloud-system type. The data are analyzed according to cloud object types, sizes, regions, and associated environmental conditions. The frequency of occurrence and probability density functions (PDFs) of selected physical properties are produced for the July 2006-June 2010 period. It is found that deep convective and boundary layer types dominate the total population while the six new types other than cirrostratus do not contribute much in the tropics and subtropics. There are pronounced differences in the size spectrum between the types, with the largest ones being of deep convective type and with stratocumulus and overcast types over the ocean basins off west coasts. The summary PDFs of radiative and cloud physical properties differ greatly among the size categories. For boundary layer cloud types, the differences come primarily from the locations of cloud objects: For example, coasts versus open oceans. They can be explained by considerable variations in large-scale environmental conditions with cloud object size, which will be further qualified in future studies. © 2016 American Meteorological Society. 资助项目: NASA, National Aeronautics and Space Administration
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50327
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Climate Science Branch, NASA Langley Research Center, Hampton, VA, United States; Science Systems and Applications, Inc., Hampton, VA, United States
Recommended Citation:
Xu K.-M.,Wong T.,Dong S.,et al. Cloud object analysis of CERES Aqua observations of tropical and subtropical cloud regimes: Four-year climatology[J]. Journal of Climate,2016-01-01,29(5)