Scientist Magnus Wettle 6th-12th March 2006

David and I are aboard the Pelican for one week in order to measure the optical properties of coral waters in the GBR. The purpose of these measurements is to allow us to understand how visible light (the signal detected by a satellite) is affected by the water overlying the corals. Ultimately, this will allow us to better interpret our satellite data, which in turn can be a powerful tool for monitoring the extent and/or severity of coral bleaching throughout the whole GBR.

We have deployed a suite of underwater optical instruments at various sites throughout the first week, and are satisfied that we have collected a suitable and useful data set. Various technical complications arose along the way, but that was only to be expected with the complexity of the instrumentation.

Apart from the obvious mission for us to collect data, it was very beneficial to spend some time with the GBRMPA team. After all, our work on developing methods for monitoring coral bleaching using satellites is only relevant if it is useful for people like Paul and his team. The opportunity to discuss what they need and what we can and cannot do has been very beneficial to us, and we are grateful for the invitation to come along.

Seeing the endless fields of bleached corals at the Keppel Isles was an astounding if depressing experience, and put this work into stark context.

And aside from all this science stuff, hanging out with Ewan, Matty, Frank and Pedar has been great fun. I have thoroughly enjoyed having my horizons broadened from all the new things I have learned from them.

Magnus