The second edition of the satellite-derived climate data record CLARA ("The CM SAF Cloud, Albedo And Surface Radiation dataset from AVHRR data" - second edition denoted as CLARA-A2) is described. The data record covers the 34-year period from 1982 until 2015 and consists of cloud, surface albedo and surface radiation budget products derived from the AVHRR (Advanced Very High Resolution Radiometer) sensor carried by polar-orbiting, operational meteorological satellites. The data record is produced by the EUMETSAT Climate Monitoring Satellite Application Facility (CM SAF) project as part of the operational ground segment. Its upgraded content and methodology improvements since edition 1 are described in detail, as are some major validation results. Some of the main improvements to the data record come from a major effort in cleaning and homogenizing the basic AVHRR level-1 radiance record and a systematic use of CALIPSO-CALIOP cloud information for development and validation purposes. Examples of applications studying decadal changes in Arctic summer surface albedo and cloud conditions are provided.
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Univ Oxford, Dept Phys, Clarendon Lab, Parks Rd, Oxford OX1 3PU, England
Colorado State Univ, Cooperat Inst Res Atmosphere, Ft Collins, CO 80521 USAMonash Univ, Dept Earth Atmosphere & Environm, Melbourne, Vic 3800, Australia
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Chinese Acad Sci, RADI, Inst Remote Sensing & Digital Earth, Key Lab Digital Earth Sci, Beijing 100094, Peoples R China
Univ Chinese Acad Sci, Beijing 100049, Peoples R ChinaChinese Acad Sci, RADI, Inst Remote Sensing & Digital Earth, Key Lab Digital Earth Sci, Beijing 100094, Peoples R China
Che, Yahui
Guang, Jie
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Chinese Acad Sci, RADI, Inst Remote Sensing & Digital Earth, Key Lab Digital Earth Sci, Beijing 100094, Peoples R ChinaChinese Acad Sci, RADI, Inst Remote Sensing & Digital Earth, Key Lab Digital Earth Sci, Beijing 100094, Peoples R China
Guang, Jie
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de Leeuw, Gerrit
Xue, Yong
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Univ Derby, Coll Engn & Technol, Dept Elect Comp & Math, Derby DE22 1GB, EnglandChinese Acad Sci, RADI, Inst Remote Sensing & Digital Earth, Key Lab Digital Earth Sci, Beijing 100094, Peoples R China
Xue, Yong
Sun, Ling
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CMA, Natl Satellite Meteorol Ctr, LRCVES, Key Lab Radiometr Calibrat & Validat Environm Sat, Beijing 100081, Peoples R ChinaChinese Acad Sci, RADI, Inst Remote Sensing & Digital Earth, Key Lab Digital Earth Sci, Beijing 100094, Peoples R China
Sun, Ling
Che, Huizheng
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Chinese Acad Meteorol Sci, CMA, State Key Lab Severe Weather & Inst Atmospher Com, Beijing 100081, Peoples R ChinaChinese Acad Sci, RADI, Inst Remote Sensing & Digital Earth, Key Lab Digital Earth Sci, Beijing 100094, Peoples R China