Absolute observations at Crooktree SAMNET Station : March 2009

This report describes the results and process of making absolute observations at the Crooktree SAMNET station on 12th March 2009. Based on the absolute observations made, a series of baseline corrections were derived for the SAMNET variometer instrument. In the final part of the report, the quality and validity of the measurements are discussed and the overall suitability of the site for making absolute magnetic measurements is considered. As this report will provide a technical reference for potential future visits, the site details, measurement procedures and post processing methods have been described in detail.