Title :
NOAA-AVHRR imagery of volcanic clouds in Kyushu, Japan
Author :
Kinoshi, Kisel ; Hosoyamada, Saburo ; Goto, Azumi ; Saitoh, Sei-lchi
Author_Institution :
Fac. of Eng., Kagoshima Univ., Japan
Abstract :
Volcanic clouds in Kyushu, Japan were found in 54 data sets of NOAA-AVHRR between March 1990 and March 1991 among 97 sets. Most of the clouds were emitted from Mt. Sakurajima with various scales up to a few hundred km in length, while several samples of them from Mt. Aso and Mt. Unzen were found with lengths up to 20 km. The bispectral method used the difference between the brightness temperatures of AVHRR channels 4 and 5 and was able in many cases to discriminate volcanic clouds from water/ice clouds
Keywords :
clouds; infrared imaging; remote sensing; volcanology; 10.5 to 11.3 mum; 11.5 to 12.5 mum; 3.55 to 3.93 mum; AD 1990 03 to 1991 03; AVHRR channels 4; AVHRR channels 5; IR; Japan; Kyushu; Mt. Aso; Mt. Sakurajima; Mt. Unzen; NOAA-AVHRR imagery; bispectral method; brightness temperatures; ice cloud discrimination; volcanic clouds; water cloud discrimination; Aerodynamics; Aquaculture; Brightness temperature; Clouds; Ice; Large-scale systems; Meteorology; Monitoring; Satellites; Volcanic activity;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1993. IGARSS '93. Better Understanding of Earth Environment., International
Conference_Location :
Tokyo
Print_ISBN :
0-7803-1240-6
DOI :
10.1109/IGARSS.1993.322406
