Cloud Particle Phase Determination with the AVHRR
نویسندگان
چکیده
منابع مشابه
Seasonal variation of cloud particle size as derived from AVHRR remote sensing
[1] We have analyzed long-term NOAA/AVHRR (Advanced Very High Resolution Radiometer) global data from 1985 to 1994 to investigate the variation of the cloud particle size for low-lying water clouds. Here we focus on seasonal change of the cloud particle size instead of studying the variability the absolute values, since there are several critical factors which affect the long time-series thus o...
متن کاملGeometric Cloud Heights from Meteosat and Avhrr
Geometric cloud height estimation provides an alternative to cloud top temperature methods if two satellites view the same cloud. First we demonstrate the stereo cloud height derivation with a combination of Meteosat 7 and Meteosat 5 5 km resolution Infrared data. Comparison with the temperature technique shows consistency in the majority of the clouds, but some differences. This demonstrates t...
متن کاملDetermination of cloud microphysical properties from AVHRR images: comparisons of three approaches
This contribution to the EUCREX mission 206 series aims at evaluating the performances of Ž three methods considered for the retrieval of cloud microphysical properties optical depth, droplet Ž .. effective radius and liquid water path LWP from Advanced Very High Resolution Radiometer Ž . AVHRR satellite images. These procedures, namely a set of empirical parameterizations, a physically based i...
متن کاملNighttime Cloud Detection Over the Arctic Using AVHRR Data
Clouds play an important role in the Arctic energy budget. The magnitude and significance of the radiative impact of polar clouds, however, are not well known. Polar nocturnal clouds are often warmer or at the same temperature as the background snow surface, complicating cloud detection. Also, these clouds tend to be thin, with lower emittances than clouds occurring during the summer. Using onl...
متن کاملInvestigation of polar stratospheric cloud solid particle formation mechanisms using ILAS and AVHRR observations in the Arctic
[1] Satellite observations of denitrification and ice clouds in the Arctic lower stratosphere in February 1997 are used with Lagrangian microphysical box model calculations to evaluate nucleation mechanisms of solid polar stratospheric cloud (PSC) particles. The occurrences of ice clouds are not correlated in time and space with the locations of back trajectories of denitrified air masses, indi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Applied Meteorology
سال: 2000
ISSN: 1520-0450,0894-8763
DOI: 10.1175/1520-0450-39.10.1797