紀要No.18・19 古藤浩

ブックの説明

ベクトル場作成による二酸化炭素排出量の国家群分析
Global projections of energy use and carbon emissions by vector field

古藤浩
KOTO, Hiroshi

The amount of “Energy use” is now an essential
indicator and is closely relevant for climate change
problem, because the use of energy brings carbon
dioxide emissions. Of course the amount of “carbon
dioxide emissions” is also valuable. For considering
these indices, we consider these matters by indices
such as “per capita” and “per 1$ GDP”. Using the
data, we make vector field of two indexes on the
scatter diagram. This idea makes two points of
support for understanding the data, one is visual
support and the other is support for constructing
mathematical models. For constructing the vector
field, we apply Kernel density estimation and
Geographically Weighted Regression.
We show vector fields of energy use and carbon
emissions, and using our diagram,w e examine of the
global flow of indexes. Moreover, we discuss the
method and the result of forecast amounts of indexes
using the vector field. In the result of data analysis,
we show vector field of these indices by 120
countries during period of 1990 and 2005.

Keywords

Energy Use (エネルギー利用量），Carbon
Emissions (炭素排出量），Scatter Graph (散布図），Vector
Field(ベクトル場），Adaptive Spatial Kernel (適合的空間
カーネル）