Barnacle Discovery Mock-Up Experiment
Given the trouble we had finding the first Barnacle, and not knowing what to look for, I decided to run a discovery mockup test around the original Barnacle site - what I like to call Site Octo. My experiment was to determine whether the Barnacle is easier to detect by air or by ground. To start with, I did flyovers of the site from several directions and at a multitude of altitudes. While the Barnacle is technically visible from beyond 1km up, it is so small it is very hard to see (I had to lean in close to my monitor just to see it from 600m!). This may just be my bad eyesight, but if it was hard for me to spot it, it's the sort of thing that could have been easily missed by a number of people. The next experiment involved landing a considerable distance away, and then see if I can locate the barnacle with the SRV's wave scanner, and differentiate it from the myriad other things that spawn and get detected by the wave scanner.
This experiment was more interesting. Initially, I did a few wave scanner tests around the Barnacle at different disances in order to get an idea of what it would sound like. It does produce a distinctive howl which is just slightly different from other, manmade objects. It almost sounds like a ufo. Following this, I landed my ship far enough away that the wave scanner could not detect the Barnacle. I deployed my SRV and proceeded to drive around randomly in the general direction of where I thought the Barnacle was. Along the way, I found some minerals and a crashed drone and then picked up the distinctive ufo-like howl of the Barnacle. I drove to the cliff face overlooking the Barnacle valley and could not see anything where the Barnacle should be. But the wave scanner was detecting it.
I made my way in that direction and still could not see the Barnacle until I was actually quite close, though much of that had to do with the terrain. But the Wave Scanner never lost the signal. Along the way I picked up another wreck site and was able to compare the Barnacle's scanner sound to the manmade site scanner sound, and there is a distinct difference.
I think this information will be helpful in the future, should we need to locate alien objects again. We know that they will sound different, though the differences can be subtle. It seems the wave scanner is far more useful than one's own eyes, even from the sky - it can detect things quite far away and once you are familiar with it could be potentially far more useful than an aerial flyover.
I recorded the SRV experiment. It's a good 25 minutes, most of which is not very interesting, but those of you who are die-hard Barnacle Hunters may find this video informative.
[video=youtube_share;3nSGJdu2Slw]https://youtu.be/3nSGJdu2Slw[/video]
Video index:
12:30 - First distinct Barnacle detection on wave scanner (audio only: faint ufo like howl with no visual signal)
20:05 - Comparison of wave scanner audio: Barnacle and drone wreck
22:30 - First clear visual of Barnacle from drone wreck