Revisit to Modelling Global Annual Average Temperature - A Parametric Approach

URI http://harp.lib.hiroshima-u.ac.jp/it-hiroshima/metadata/12060
ファイル
タイトル
Revisit to Modelling Global Annual Average Temperature - A Parametric Approach
著者
氏名 Pal Satyabrata
ヨミ
別名 Pal Satyabrata
氏名 Ghosh Arunava
ヨミ
別名 Ghosh Arunava
氏名 Pal Subhabaha
ヨミ
別名 Pal Subhabaha
氏名 Kageyama Sanpei
ヨミ カゲヤマ サンペイ
別名 景山 三平
キーワード
Global warming
Parametric models
抄録

Global annual average temperature is regarded as a precise indicator of the warming of the globe over centuries and if we track the available record on it, it is observed that the available period of 133 years (1980-2012) can be partitioned into three distinct phases, 1880-1936, 1937-1980 and 1981- 2012, based on temperature variation pattern (Pal et al., 2013). The content of the said paper deals with the development of models, parametric and nonparametric, which produce high precision levels (as measured by value of R2 coefficient) as high as 0.84. In this paper, a class of parametric models has been developed which is a combination of three mathematical functions, namely, cubic, exponential and trigonometric, respectively. An extensive search of models belonging to the abovementioned class identifies four different models whose R2 values lie within the range, 0.826 to 0.860 as a distinct improvement in the value of R2 vis-a-vis the precision level, over that obtained in Pal et al. (2013).

掲載雑誌名
広島工業大学紀要. 研究編
48
開始ページ
87
終了ページ
91
出版年月日
2014-02
ISSN
1346-9975
NCID
AA11599110
本文言語
日本語
資料タイプ
紀要論文
著者版フラグ
出版社版
区分
it-hiroshima