DOI: 10.1175/JCLI-D-11-00666.1
Scopus记录号: 2-s2.0-84872976212
论文题名: PATMOS-x: Results from a diurnally corrected 30-yr satellite cloud climatology
作者: Foster M.J. ; Heidinger A.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期: 2 起始页码: 414
结束页码: 425
语种: 英语
Scopus关键词: Cloud climatology
; Diurnal correction
; Diurnal cycle
; Geostationary operational environmental satellites
; Interannual variability
; Sinusoidal functions
; Time-scales
; Very high resolution
; Climatology
; Satellites
; Clouds
; annual variation
; AVHRR
; cloud cover
; diurnal activity
; diurnal variation
; GOES
; satellite data
; satellite imagery
; time series
; trend analysis
英文摘要: Satellite drift is a historical issue affecting the consistency of those few satellite records capable of being used for studies on climate time scales. Here, the authors address this issue for the Pathfinder Atmospheres Extended (PATMOS-x)/Advanced Very High Resolution Radiometer (AVHRR) cloudiness record, which spans three decades and 11 disparatesensors.Atwo-harmonic sinusoidal function is fit to a mean diurnal cycle of cloudiness derived over the course of the entire AVHRRrecord. The authors validate this function against measurements from Geostationary Operational Environmental Satellite (GOES) sensors, finding good agreement, and then test the stability of the diurnal cycle over the course ofthe AVHRR record. It is found that the diurnal cycle is subject to some interannual variability over land but that the differences are somewhat offset when averaged over an entire day. The fit function is used to generate daily averaged time series of ice, water, andtotal cloudiness over the tropics, where it is found that the diurnal correction affects the magnitude and even the sign of long-term cloudiness trends. A statistical method is applied to determine the minimum length of time required to detect significant trends, andthe authors find that only recently have they begun generating satellite records of sufficient length to detect trends in cloudiness. © 2013 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/52051
Appears in Collections: 气候变化事实与影响
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作者单位: Cooperative Institute for Meteorological Satellite Studies, University of Wisconsin-Madison, 1225 West Dayton St, Madison, WI, WI 53706, United States; Center for Satellite Applications and Research, NOAA/NESDIS, Madison, WI, United States
Recommended Citation:
Foster M.J.,Heidinger A.. PATMOS-x: Results from a diurnally corrected 30-yr satellite cloud climatology[J]. Journal of Climate,2013-01-01,26(2)