Research Tools developed by Takeshi Nakagawa


The tools on this page are spin-offs from several scientific drilling projects, including 'Suigetsu Varves 2006' (, 'Suigetsu Varves 2014', and 'Comparative Studies on Ancient American Civilizations' ( If you want to purchase any of the products, or for any other questions, please contact Takeshi Nakagawa by Email (nakag(at)

Computer programs developed by Takeshi are here.


(Under construction)

For further information and sales inquiries, contact the author:
Professor Takeshi Nakagawa
Research Centre for Palaeoclimatology, Ritsumeikan University
1-1-1 Noji-higashi, Kusatsu, Shiga 525-8577 JAPAN
Last updated: 12 Sep., 2019.