Eztracting the Regions of Cumulonimbi from Satellite Images
The term “El Nino originally applied to an annual weak warm ocean current that ran southward along the coast Peru and Ecuador about Christmastime and only subsequently became associated with the unusually large warming that occurred every few years and changed the local and regional ecology. In many recent El Nino forecast, it is important to unravel the intricate relationship between ocean and atmosphere. Although meteorologists have long been forecasting daily weather based on atmospheric measurements taken around the world, they had relatively little information about conditions in many parts of the worlds oceans. In this study, we are trying to find some characteristics or symptoms of El Nino by analyzing weather satellite images. The Multi-functional Transport Satellite-1R (MTSAT-1R) of Japan Meteorological Agency (JMA) is called Himawari 6 and it has been working in the space since 2003. It is said that the region where cumulonimbi grow moves in the direction South America during a period of El Nino. Therefore we propose some image processing methods to extract the regions of cumulonimbi, in expectation of that being used in El Nino forecast. After we extract cumulonimbi from the satellite image of the El Nino monitoring sea area that we acquired from weather satellite GOES11, we will compare their locations, which we can verify the difference between when El Nino does and does not occur.
Yoshinori OGAWA Shigeru KITAKUBO
Nippon Institute of Technology 4-1 Gakuendai, Miyashiro, Saitama, 345-8501 Japan Nippon Institute of Technology 4-1 Gakuendai, Miyashiro, Saitama, 345-8501 Japan
国际会议
The 31st International Congress on Imaging Science(第31届国际影像科学大会 ICIS2010)
北京
英文
595-597
2010-05-12（万方平台首次上网日期，不代表论文的发表时间）