岡山大学 地球科学研究報告
Published by Okayama University Earth Science Reports Editorial Committee

岡山県南部におけるPM2.5の高精度高解像度空間分布推定

大森 秋穂 岡山大学理学部地球科学科
山川 純次 岡山大学理学部地球科学科
抄録
 A relatively high precision and high resolution spatial distribution of the PM2.5 in the south part of the Okayama prefecture, Japan was estimated by the Universal Kriging method and the FOSS4G GIS softwares. The observation data of the PM2.5 were obtained from the Environmental data service site of the Okayama prefecture. The geospatial open data about the research field that used in the research were served by the government research institutes. The spatial analysis were executed by the R (R core team, 2014) and its spatial libraries, maptools (Bivand and Lewin-Koh, 2014), rgdal (Bivand, Keitt and Rowlingson, 2014) and gstat (Pebesma, 2014). The geospatial representation and qualitative analysis of the estimated distribution were performed by the QGIS (QGIS Development Team, 2014) and the Google earth (Google, 2014). The time variant of the PM2.5 concentration by the each observatories in the area were show some cross correlation factor to the SPM10 concentration data. The estimated PM2.5 distribution seems to show that the relatively tight relation to the geospatial factors in the research area. The estimation of a time variant change of the PM2.5 distribution will be required of the further research..
キーワード
PM2.5
Spatial statistics
Kriging
R-language
gstat
FOSS4G
Google earth
ISSN
1340-7414
NCID
AN10506284
NAID