The Cornell tree ring analysis system. Corina is an open source, freely available, dendrochronology program used and developed by the Cornell Tree-Ring Laboratory.

The main features of Corina include:
1. Integrated database management system for both meta and ring-width data.
2. Multiple cross dating measures including T-scores, Weiserjahre and Trend.
3. Standard dendro file format support including TRiDaS, Tucson, Heidelberg and TSAP.
4. Advanced graphing support.
5. Satellite imagery mapping.

Corina is written in Java and so can be run on most operating systems include Windows, Mac OSX and Linux.

Please Note: this program is a Java Web Start Application, you need to right-click on the download file and choose "Launch".

Requirements:
* Java
* Internet Connection

The license of this software is Freeware, you can free download and free use this calculator software.