Bective excavations Blog

Day 4 – A Master Class in Photogrammetry and a Fabulous Field Trip.
July 10, 2010, 10:35 am
Filed under: Uncategorized

Thursdays on the site are short because this day is our field trip day. But a lot of work was achieved in the morning. Most of the long Cutting 3 was bottomed. Gian Marco instructed us in the use of site-based photogrammetric survey. After an early lunch we went on the Cistercian trail visiting Mellifont (the mother house to Bective Abbey) and the grange at Knowth. Kevin O’Brien generously accompanied the group and shared his valuable knowledge and experience of Cistercian architecture with the team. Once again there was no blogging this night. The bloogers attended the retirement function of legendary surveyor and GIS man extraordinaire Múiris de Buitléir. To quote Millay “My candle burns at both ends;/It will not last the night;/But ah, my foes, and oh, my friends-/It gives a lovely light.”

Gian Marco introduces the team to the intricacies of site-based photogrammetric survey.

In advance of the photogrametric survey dots are placed in strategic positions on the feature to be photographed. This will then be ‘rectified’ using Geographical Information Systems (GIS) software.

Alexis at the lavabo in Mellifont.

Expert guide shows the team around Mellifont Abbey.

On the field trip to Mellifont Abbey, Kevin O’Brien of the Office of Pubic Works gave a tour of the abbey’s infirmary and discussed the layout of the Tudor mansion built on the abbey after dissolution. Kevin explained that the model of the abbey in the museum centre was carefully prepared on the basis of detailed historical research, topographical survey and extensive comparative architectural study.

The model shows the approach to Mellifont Abbey from the north through the village attached to the monastery. Topographical survey in this area revealed the foundations of the houses depicted in this model.

Geraldine Stout and Kevin O’Brien discuss the finer points of the reconstruction of the Knowth tombs.

After the tour of Mellifont, the team moved on to Knowth where Patricia gave us a great tour. Knowth became a Cistercian grange in the 12th century. The church would have the last say on this pagan burial site.


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