NAKANO NAOTO    Department   Graduate School  , Graduate School of Advanced Mathematical Sciences    Position   Associate Professor (non-tenured)
Research Period	2014/07～2018/03
Research Topic	Meteorological analysis and prediction on the low-dimensional space
Research Type	KAKENHI Research
Consignor	Japan Society for the Promotion of Science
Research Program Type	Grant-in-Aid for Scientific Research (B)
KAKENHI Grant No.	26310201
Responsibility	Research Contributor
Representative Person	INATSU Masaru
Collaborative Researcher	Mukougawa Hitoshi
Details	Geometrical change of extratropical cyclones: We developed a brand-new cyclone tracking programme with persistent homology. By reconstructing data with merge-trees based on maxima and saddles of the scaler field, the neighbouring among homology classes were clarified. The cyclone identification with this algorithm is consistent with conventional meteorological analysis.