More Projected Geometry

Projected geometry has improved! Surface extraction for a cistern has made it through the pipeline and (as shown below) is now visualized. At the moment, we have a simple keyhole cistern... one of the most common outline shapes for cisterns. It is interesting to see how the sonar scans picked up other objects at the level of the scan that have been interpolated into vertical barriers (seen as pillars).

In addition to surface extraction, I now have multiple projections that can be merged together as a mosaic on the wall of the cistern. Below you can see the mosaic merged together in Microsoft Word on the left. On the right, the same mosaic is replicated in the 3D environment on a wall of the keyhole cistern. The images are actually taken from the ISIS boat trip. On the ISIS, we recorded the ROV's video of the shipwreck. From the video, I took screenshots that represent sequential frames of different features of the shipwreck. With a little patience, I put the images together (as accurately as I could) to represent the shipwreck.

This process will be the same for combining images from the all of the surveyed sites with their corresponding geometry. The mosaic process of projective texturing still has a lot of work to help streamline the process more. Just for the record... this is all REALLY cool :P

New Toys!

After experiencing so many technical difficulties with our ROV, we got a new toy on Monday! We're not quite sure how he did it (most of us are speculating on superpowers), but Dr. Clark was able to get together enough money to buy a new ROV and ship it to Malta. The new ROV is looking slick, but more importantly it came with a working cable (although it's not as long as our previous cable, it is long enough for most sites, is not attached to the carrying case, and can be attached to an older cable to add length), a much larger monitor (the older ones are about 6in while the new one is about 15in), and a new working depth sensor. What does that mean!? Depth measurements and 3D data! YAY! After tearing through the packaging like a kid on Christmas, we decided to test out the new ROV on the cave near St. George's Bay since our previous readings could be improved upon (and because the cave is just that cool).



Tuesday was fun, too! In groups we all climbed aboard the Isis II (a boat) to check out a WWII shipwreck in the bay. The team took turns visiting the site in groups of 2 or 3 and each member took a turn driving a much larger ROV around the shipwreck. It handled differently from our VideoRay and had a longer response time, but a few quick minutes of practice proved to be enough (at least, for our purposes). There were also some divers who happened to be in the area. They were supposed to be on one side of the wreck while we would stay on the other, but slowly during my turn they crept over to our side. This was a little thrilling as I didn't want to slam the very expensive equipment I was controlling into anyone and they came in rather quickly. Fortunately, I was able to keep my distance while not losing sight of the wreck until I was done. We then surfaced the robot and reeled it in with a crane (much easier than pulling it out by hand) and headed back to the dock. And while I am excited for the new VideoRay, it was a great treat to be able to use this other ROV.

HMS Russell - British battleship to Maltese shipwreck

Abstract

Malta’s unique location in the Mediterranean has made it a strategic and coveted spot for many years. Because of this, military endeavors have played a big part in shaping its history. In addition, because of its nature as a small island nation, Maltese culture and industries have a strong connection to the sea. Due to both of these facts, it is important to have an understanding of some of the naval history related to the island of Malta. There are a number of shipwrecks off the coast, which provide a good starting place for this. The HMS Russell – which is the ship the ICEX team will help investigate – was a British battleship built in 1901 and served in WWI before hitting a mine in 1916 and sinking off the coast of Malta. Because of the deep resting place of the HMS Russell today, no dives to it were attempted until 2003. The ship lies upside down and the stern section is missing, but there is still a lot of history intact on the wreck and presumably much more to discover.

Annotated Bibliography

1. "Duncan Class Battleship." World War 1 Naval History. 1998-2011. Web. 06 Feb. 2011. .

This article gave a good overview of the 5 Duncan class ships and gives dates, figures and specifications on these and how they differed from other ships of that time period. It also gives a brief overview of the service that each of the ships performed in WWI, which is less detailed than some other sources, but provides a good comparison. Given there are a number of other resources which cover some of the specific events in more detail, I thought this source was still helpful at giving that broader perspective.

2. Grech, Herman. "Throwback to WWI: Diving Team to Try and Locate HMS Russell."The Times21 Aug. 2001: 44. Web. 05 Feb. 2011. .

This is a newspaper article from 2001 about the proposed dive that the Starfish Enterprise did to the HMS Russell. I thought it was interesting to hear the story before the dive and what kinds of things they already knew about the wreck and be able to compare that to the information after the dive. One of the other resources I found documented the dive that they talked about in this article, so it provides a good connection. I think this is also a good source to use because the facts are much more likely to be confirmed and accurate (compared to most of the other information on this topic, which is just from various websites). It also shows that this shipwreck was of importance to Britain still to make it into their newspaper.

3. "HMS Russell." Shipwreck Films. 2006. Web. 05 Feb. 2011. .

This source gives a brief background history or the HMS Russell and then goes into much more detail about the first dive (by the Starfish Enterprise team) to capture video and identify the ship. This is very helpful as we will be doing something similar (only with robots instead of divers) so we can compare their methods and results and have an idea of what to expect. There were also helpful details related to this including the visibility in the water at various depths, which is essential to know given our AUV can't dive all the way to where the wreck lies on the bottom. In addition to the written description and some pictures, there are also two videos from their dives to the HMS Russell, which I feel would be good to show to the other ICEX participants (again to get an idea of what to expect and see what almost 100 years underwater has done to such a magnificent battleship).

4. "MaritimeQuest - HMS Russell Message Board." MaritimeQuest. 2009. Web. 08 Feb. 2011. .

This source is actually a message board from the MaritimeQuest – a website dedicated to naval and shipping history. I would normally be skeptical of using such a source since anyone can post whatever they want, true or not. However, one of the members posted several scanned newspaper clippings from the London Times as well as telegrams from the year of the shipwreck which talk about the incident. I think those would be very valuable sources to include as they give a historical perspective and a firsthand look at what people thought about the incident during that time.

5. Rickard J. "HMS Russell." Military History Encyclopedia on the Web. 5 Nov. 2007. Web. 06 Feb. 2011. .

This source is very helpful in giving a more detailed history of the HMS Russell’s service during WWI before being sunk 1916. It also gives a nice, quick overview of the ship and it’s specifications in a table laid out at the end of the article. However, it is missing much in the way of history from when it was first built in 1901 and when it served in 1914. It also doesn’t say much about the actual wreck or what happened that made it sink near Malta. Given most of that information is readily available in other sources though, I think that is a valuable resource to include to get the WWI time period (prior to the sinking of it) covered.

Research Progress Report #1: Jennifer Batryn - Shipwrecks & Maritime Malta

I will be focusing my research on shipwrecks in Malta, and more specifically the archeological significance of the shipwreck site we will be investigating on the ICEX trip. I want to understand the history behind the ship and the events leading up to its demise. What does it say about Maltese relations with other countries and the technology of the time? I also want to get an understanding of how it ties in with present day Maltese culture and the significance of it today.

So far, I have not been very successful with my research. I know from talking with Chris Clark that the shipwreck we will be investigating is at a depth of approximately 100m, which is too deep for the Iver2 to go, but given the clear water and general good visibility, we are hoping that we can still get a good look at it from above. In addition, we will have ROVs that we can potentially use to aid in the investigation. When looking up shipwrecks in Malta online, the only thing that really comes up is information about the Apostle Paul’s shipwreck on Malta from biblical times. It is believed that he ended up near Malta and there seems to be a lot of meteorological and historical data that supports Luke’s narrative. That could be an interesting component to investigate further, but it is also not really the focus of what we will be looking at in Malta in relation to the ICEX project.

I also investigated WWII shipwrecks in the Mediterranean, but that returned a rather broad set of data (not may actually being directly associated with Malta) and most of the ships had very little information about them. In addition, I tried looking up information about shipwrecks that you can dive to. These were more related to Malta, but there was only very limited information available about the ships themselves (and more about the associated dives).

I am still waiting to get the exact name of the ship we will be investigating. I think that once I have the name, it will be easier to locate some relevant information. I also plan to try expanding my search in terms of where I am looking for information. I would like to try getting a hold of our archeological contact whom we will be working with there and seeing if I can some more information from him about the shipwreck. If those approaches are still not sufficient in obtaining relevant information, I think it might be helpful to expand my area of research to also include more about shipping in general in Malta and the importance and relation of the shipping industry with other countries.

References

White, Jefferson. "The Apostle Paul's Shipwreck on Malta." Evidence and Paul's Journeys - History, Missionary Journeys, and Life of the Apostle Paul. 2004. Web. 23 Jan. 2011. .