2024-03-28T23:19:22Z
https://u-ryukyu.repo.nii.ac.jp/oai
oai:u-ryukyu.repo.nii.ac.jp:02007563
2022-10-31T03:23:17Z
1642837622505:1642837957109:1642837987340
1642838403551:1642838406414
気温の時系列データにおける隠れた周期性
Hidden Periodicities for Time Series Data of Hourly Air Temperature around East Asia Region
清野, 光弘
島袋, 知巳
Seino, Mitsuhiro
Shimabukuro, Tomomi
open access
Correlations between time series data of hourly air temperature from 1991 to 2010 observed at Kobe station and Niigata station are discussed. For time series data of hourly air temperature in 1996, 2000, 2009, and 2010, power spectra with periodic peaks are calculated by using Fourier transform, respectively. A first peak of power spectra is determined and time intervals between nearest neighbor peaks are evaluated. As a result, hidden periodicities are observed. In addition, the features of power spectra for the ratio of cloud covers and space packing exponents by image analysis and time series analysis for MTSAT-2 images covering East Asia region of channels IR1 in 2009 and 2010 are described and similarities between the hidden periodicities for time series data of hourly air temperature are suggested.
紀要論文
琉球大学理学部
Faculty of Science University of the Ryukyus
2013-03-27
jpn
departmental bulletin paper
VoR
http://hdl.handle.net/20.500.12000/27774
http://hdl.handle.net/20.500.12000/27774
https://u-ryukyu.repo.nii.ac.jp/records/2007563
0286-9640
AN00250774
琉球大学理学部紀要
BULLETIN OF THE FACULTY OF SCIENCE UNIVERSITY OF THE RYUKYUS
95
1
7
https://u-ryukyu.repo.nii.ac.jp/record/2007563/files/No95p001.pdf