Archaeological geophysicist and GPS specialist providing GIS solutions to archaeologists

A Fourth Day In The Life (Of An Archaeological Geophysicist)

So, unfortunately I didn’t get the email from the admins about the Day of Archaeology until a week after it had occurred. Hence, my post is late. Apologies.

From memory, on the actual Day of Archaeology 2015, I spent the day meeting up with some electronics suppliers (I’m building a new gadget) and also my survey equipment supplier who wanted to show off some new kit (the Leica TS16 robotic total station). Also did my monthly tax update in the afternoon.

Not a terribly archaeological day this year.


A Third Day In The Life (Of An Archaeological Geophysicist)

Wow, time has flown. This time last year, I was doing radar work in Ballarat on gold mine sludge. But that’s more geological than archaeological, and it should have been covered in last year’s non-existent post (what happened last year, admins??), so I won’t discuss that further.

Let’s see… what was I doing this year?

Ah, yes. Friday. It was the last day of an eight-day project using ground-penetrating radar to search for unmarked graves in a cemetery. The day didn’t really involve any geophysical surveying as such – all that had been done over the preceding week. Instead, Friday was spent using one of my new toys – a Topcon Power Station robotic total station. I love it. It has reflectorless mode so I don’t have to walk around the cemetery to map things. Set-up is a breeze with re-sections (I was previously using a 25-year old reflector-only total station that required two operators and couldn’t do re-sections).

Can you tell from my passion for a robotic total station that I don’t have a romantic partner?

Anyway, I don’t want to sound like a Topcon salesman, so I shall move on.

Basically, what I did that day was map the headstones that were present in the cemetery. That took me from 7am until about 1pm.

It’s one thing to have a geophysical survey performed, but you really need to have a map of the surrounding “stuff” so you know exactly where the geophysical survey was performed (and, hence, where all the unmarked graves are located). If you don’t do this, you’re just wasting time (and the client’s money).

Once I collected all the points needed to create the site map, I packed up, headed to my motel room and entered all the data into GIS (I use Global Mapper. It’s far easier and better than anything else. Yes, including ArcGIS. Deal with it. 😛 ). Then I spent the afternoon colour-coding the different points and lines and shapes and what-have-you. Little trees to indicate trees. Dark grey areas to indicate marked graves. Light grey areas to indicate concrete slabs for the lawn section. A crossed orange line to indicate the cemetery boundary fence. You get the idea. Make the map look pretty. Then whack a north arrow, scale and legend on it and Robert is your mother’s brother. And then the clock hit 5pm and it was time to sleep. (This week involved working from 6.30am until about 7pm each day. So I was overjoyed to see the bed Friday night).

So that was the excitement for my Day of Archaeology.Until next time, live long and prosper.Dave The Grave HunterPS: Sorry for the lack of photos. Here are some on my Facebook business page.

Another Day In The Life (Of An Archaeological Geophysicist)

When self-employed, a year just goes like that <clicks fingers>.

You may have read my Day of Archaeology blog post from last year.

I have since worked in a number of cemeteries searching for unmarked graves using geophysical methods. I spoke at the Cemeteries and Crematoria Association of Victoria conference in April (my first ever conference presentation) and am in the throws of writing my first paper about some work I did over the last year.

I have been undertaking geophysical surveys at the Creswick Cemetery (in Victoria, Australia) for the last year-and-a-bit, tracking down unmarked Chinese graves and an old homestead and associated features (rubbish pits, garden beds, etc.). In all this time, I have been able to test just about every geophysical method under the sun, and so am able to compare the effectiveness of certain methods at detecting certain types of archaeological features. I am hoping it will make a good read. Our data collection phase finished last week, so now it is (academic) reporting time. The client’s report has already been written and is publicly accessible for those interested.

Earlier this week, I had a computer issue and lost all of my tax data. Sadly, my taxes are due today. Hence, I spent the last four days doing nothing but my tax. Needless to say, this hasn’t been a very ‘archaeological’ week. Taxes were finished and submitted late last night, thankfully.

Today, though, I am driving back to Creswick, where three cemeteries nearby heard of my work and are interested in my surveying their empty land to look for any unmarked graves that may be present. Assessing each cemetery prior to providing them with a quotation will take me all of this weekend.

I have also branched out into geodetic surveying (i.e. creating maps of archaeological excavations and landscapes) using GIS, RTK GPS and robotic total stations. These technologies are certainly a far cry from the days of old, when we just used measuring tapes and a compass! I’ve also been using car- and tripod-mounted laser scanners to create full-colour three-dimensional models of archaeological sites, heritage structures and cemeteries (you’d be surprised by how many people want to look at what is written on headstones in a cemetery far, far away). I’m also looking into using airborne LiDAR for a major archaeological prospection project.

That’s about all for me for the year.

And, for those of you wondering, the big settlement project I was getting ready for last year ended up not getting any funding, so it didn’t happen. Anyone fancy donating some cash to the project?

Until next year… feel free to stalk me on my Facebook page , Twitter and my blog.

Live long and prosper.

A Day In The Life

So what’s all this ‘geophysics’ nonsense about, eh?

I went to a lecture by an archaeologist at the local university yesterday, and he said that the most important thing about archaeology is to have fun. And this applies to geophysics and, indeed, any career (except accounting, I would imagine). I became an archaeological geophysicist out of passion, interest and a genuine enjoyment out of the job. Each site always has something new and fascinating to learn, and the site I am currently looking at is no exception.

But before I can do anything… where did I put my bloody laptop cable? I misplaced the power cable to my laptop about a week ago, and I ran the battery flat last night (I am writing this from my desktop computer), so I am having difficulty processing the data I collected a few days ago!

No matter. Let me now waffle on for a while about my current area of focus. I am putting together a proposal for a geophysical survey of a nineteenth-century railway near Melbourne (Australia). A temporary (i.e. it lasted for almost four years) settlement for the railway workers was established alongside the railway, and there was even a cemetery which is known to have the burials of a number of infants in a paddock nearby. I have been asked to find the graves (no grave markers exist at the site now) and also to try and find the settlement (which is believed to have been just tents and timber houses for the most part. The settlement site is about 700 x 700 metres in dimensions, so is quite a large site. I have decided to propose a magnetic susceptibility survey, the results of which will allow a magnetometry survey to be narrowed-down (to reduce costs and time spent in the field). This research is being done simply out of interest, rather than as part of a commercial project, so funding is going to be scarce. But I am truly excited about this one!

So today I am talking with Heritage Victoria about the proposal and preparing the proposal itself to pass on to the client. In between doing that, and writing this blog post, I am also doing a bit of marketing (which is a daily habit) to keep up interest, and have been discussing the railway settlement site with the Hunter Geophysics ‘fans’ on Facebook. I feel that informing the public about my work is vitally important; it is, after all, their history that I am researching. Facebook is just one method of letting the public know what I am up to. I am also preparing a presentation for the upcoming Royal Historical Society’s meeting in Bendigo (country Victoria) about my recent work in another cemetery (most of my work is in cemeteries!) – I want to get at least half an hour of work done on that today, but half the trouble is finding the time. It might be a job for the weekend. Finally, this evening, I have a meeting with the Secretary of the local historical society – she has been a mentor since my high school years; it will be good to catch up with her.

Now, it’s the end of the day; time for a Parma at the pub. Oh, wait, damn; I’m not doing fieldwork today – no Parma for me.