DOI: 10.1002/2016JD025372
论文题名: Cloud and Sun-glint statistics derived from GOES and MODIS observations over the Intra-Americas Sea for GEO-CAPE mission planning
作者: Feng L. ; Hu C. ; Barnes B.B. ; Mannino A. ; Heidinger A.K. ; Strabala K. ; Iraci L.T.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2017
卷: 122, 期: 3 起始页码: 1725
结束页码: 1745
语种: 英语
英文关键词: cloud
; GEO-CAPE
; GOES
; ocean color
; remote sensing
; Sun glint
Scopus关键词: cloud cover
; coastal water
; GOES
; MODIS
; ocean color
; reflectance
; remote sensing
; resolution
; solar radiation
; Atlantic Ocean
; Caribbean Sea
; Gulf of Mexico
英文摘要: Knowledge of cloud cover, frequency, and duration is not only important to study cloud dynamics, but also critical in determining when and where to take ocean measurements from geostationary orbits such as the Geostationary Coastal and Air Pollution Events (GEO-CAPE) mission due to the challenges in achieving complete hemispheric coverage of coastal oceans, estuaries, and inland waters at hourly frequency. Using GOES hourly measurements at 4 km nadir resolution between 2006 and 2011, the number of cloud-free hourly observations per day (Ncf) for solar zenith angle θo < 80° was estimated for each 0.1° location of the Intra-Americas Sea. The number of Sun-glint-affected hourly observations per day (Nsg) was also calculated based on the planned GEO-CAPE observation geometry and realistic wind speed. High-latitude and equatorial oceans showed the lowest Ncf (<2.4) in all climatological months, and highest Ncf was observed in the Gulf of Mexico (GoM) and Caribbean (>4.5). Different regions showed differences in seasonality of cloud-free conditions and also showed differences in the hour of a day at which the satellite observations would have the maximal cloud-free and glint-free probability (Tmax). Cloud cover from Moderate Resolution Imaging Spectroradiometer (MODIS) 1 km measurements are >10% higher than those from the MODIS 250 m measurements, supporting ocean color missions at subkilometer resolutions to enhance both spatial coverage and temporal frequency. These findings provide valuable information for GEO-CAPE mission planning to maximize its science value through minimizing the impacts of clouds and Sun glint. ©2016. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62710
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: College of Marine Science, University of South Florida, Saint Petersburg, FL, United States; NASA Goddard Space Flight Center, Greenbelt, MD, United States; Cooperative Institute for Meteorological Satellite Studies, University of Wisconsin-Madison, Madison, WI, United States; NASA Ames Research Center, Atmospheric Science Branch, Moffett Field, CA, United States
Recommended Citation:
Feng L.,Hu C.,Barnes B.B.,et al. Cloud and Sun-glint statistics derived from GOES and MODIS observations over the Intra-Americas Sea for GEO-CAPE mission planning[J]. Journal of Geophysical Research: Atmospheres,2017-01-01,122(3)