Sunday 4 August 2019

Latest Loch Ness Monster Sonar Story



Let us now look at another recent Nessie event when Mike Bell, captain of the cruise boat, Nessie Hunter snapped this sonar hit when near Urquhart Castle on the 27th June. The account from the Sun newspaper is quoted below to give a flavour of what happened:


LOCH SHOCK

Loch Ness boat skipper claims he’s finally found Nessy as sonar image shows ’25ft monster lurking beneath waves’

A BOAT skipper claims he's finally found the Loch Ness Monster lurking beneath the waves in Scotland. Mike Bell captured the remarkable sonar image which he reckons shows 25ft-long Nessie. The sonar picture, taken while he was taking a group of tourists for a trip on Loch Ness on June 27, shows the bottom of the loch, a fish and a long, thin object about 115ft below the surface. But when the 24-year-old skipper took readings at the same spot the mystery object had vanished. Mike, from nearby Drumnadrochit, said:

“I would like to think this is our creature, Nessie. It’s my first year being the skipper in the boat in five months and I’ve never seen it or had something that big on the sonar. My dad is the more experienced skipper who has been doing this for a few years and has said he’s never seen it that big before on the sonar. It’s my first sighting of Nessie and I think my dad is a wee bit jealous as he has never seen it. The standard size on the sonar is usually a sharp prick suggesting a small fish. The large line about 35 metres in the water was about 10-25 feet. An object of that size I would think is way too big for the normal species in the loch. It must have been about five or six minutes we spent trying to pick up this creature again.”




Now I wasn't sure if this was the same Nessie Hunter boat associated with the infamous George Edwards. Perhaps it is or was, but it doesn't matter as this is a different person with a different story to tell. What can we tell from the sonar image at the top of this article? Three targets are circled in the picture and the first one at the bottom coincides with the depth measure of 101m at the top left and so we can take this to be part of the loch bed.

There are two objects in mid water, one elongated and one more compact in shape. Since there is a depth scale on the right, we can estimate the depths and apparent sizes of the objects, The shallower object is at a depth of 18 metres with dimensions of about 2m wide by 3.5m high. The deeper object is at a depth of 32 metres with dimensions of 17m x 3.5m. 

That suggests objects of notable size in the range of a sonic nine feet high and not likely to be fish or a group of fish (because fish do not shoal into larger aggregates in Loch Ness). Below is a Fishfinder screen for what fish tend to look like. Here the depth is in feet and not metres and is shallower at 30 feet deep. You can see the fish as crescent images generally taking up a height of less than a foot.




But let me point out again that though the vertical axis denotes depth, the horizontal axis denotes time and that is why this should not be interpreted in the same manner as an optical image. In real time, the sonar screen moves from right to left, with the sonar returns on the right being the most recent data.

Does this imply a creature with a body thickness of nine feet, which is big even by Nessie standards? Well, we do not know the orientation of the object or whether it changed over time, so that is unknown. Also, the 17 metre (54 feet) extent of the image suggests that the object is moving in roughly the same direction as the boat for no more than 17 metres before moving out of the sonar beam.

However, if a true elongated object was aligned with the boat's length, then as the boat passed over such a stationary object, then the trace would be consistent with its true length. Whether this is a stationary or moving object trace is hard to say. Meantime, one interpretation of the shallower compact sonar image is that it could be an elongated perpendicular object which is either stationary or moving away from the sonar sweep.

Note that the false colour scale of each object is also a measure of the object's density. The lighter the colour, the stronger the return of the sonar echo. What one can deduce from that in this image is unclear, but in the case of fish, it is the swimbladder that returns the strongest signal and the lungs for mammals and reptiles. Opinions are divided on whether the Loch Ness Monster has lungs, swimbladders, other air sacs or nothing at all which would give them a weak sonar signal.


WHAT WAS IT?

Having said all that, what kind of objects could produce this kind of trace? What about waterlogged tree trunks which have achieved a degree of mid water buoyancy? I am not sure these would account for the thickness of object traced and we are told the objects could not be found on a rescan of the area.

The thermocline is also oft mentioned in such scenarios but would not such a large super structure produce more than a 17m blip on the screen? Indeed, what does the thermocline or logs or seals or other objects of interest actually look like on modern sonar screens? Surely an appropriate catalogue of such images would be a boon to interpreting such images.

The final explanation would be effects of false sonar images produced by reflection and refraction. However, this just begs the question again, what do such images look like? Are the possible variations in such spurious echoes so wide and varied that it becomes an unfalsifiable scenario? Again, proven comparison images are required here.

So, the account focuses on the deeper sonar hit, although one is inclined to include both images in the debate and I still have a query over the relative brokenness of the deeper image.  These could be images of two large creatures and they are certainly of more interest than the recent surface photography and ranks with a similar sonar image taken by Marcus Atkinson in 2012.

The author can be contacted at lochnesskelpie@gmail.com




Monday 29 July 2019

Recent Loch Ness Webcam Clip

Let us look at the latest webcam clip from Eoin O' Faodhagain who recorded what looked like two objects in the water estimated by him as 20 feet in length and about five feet out of the water. The clip was recorded on the 10th of July at 12.53 pm. A cruise boat can be seen making its way north at the top of the picture complete with wash.

Looking at the two objects throughout the two minute clip one can make out that they slightly move further apart and then closer together which gives the impression that they are merging into one larger object. As with Eoin's video of a long, shadow like object back in November 2018, I brought in a shot of a cruise boat from the same webcam and did some overlay measurements.


 

Once the two pictures were overlaid and the two objects dragged over to be underneath the boat image, some estimate of size could be attempted, though with a degree of error for the fuzziness of the objects. I low balled the numbers with this boat last time but one commenter said it was the 80 foot Jacobite Cruiser. If that is the case, then the objects are about three to six feet wide and six to nine feet from each other.

That gives a total extent across the water of twelve to twenty one feet, so Eoin was in the ballpark with the estimates. Since the objects look near spherical, the height of each object is roughly the same as its width. It is not possible from this clip to ascertain whether it is one single object or two separate ones. What could it or they be? Well, too big to be birds is an obvious interpretation or how about two kayakers moving with not so visible paddles?

Beyond that there is nothing that could be conclusively deduced from the images, though others are free to comment. I asked Eoin how the event panned out after the clip ended and he said the objects remained in view for at least another four minutes, but as the objects drew further away, one disappeared and then the other one or two minutes later. One question that was on my mind was how visible this webcam vista is from the busy Urquhart Castle area? Are the objects often brought up for discussion clearly visible to tourists at the castle? That is an important question, but one I do not have a ready answer to.

The Daily Mail article is below (link here), note the reporter erroneously states both objects are twenty feet long, when it is rather the total length of the objects and the space between them that is correct.

A veteran Nessie hunter claims to have filmed two 20ft monsters swimming together in the legendary Scottish loch. Eoin O' Faodhagain, 54, was watching a live stream of Loch Ness in the Scottish Highlands when he saw the beasts on Wednesday, July 10. He immediately started his own recording of the live stream, run by researcher Mikko Takala, to show the world what he had seen. The footage shows two dark objects moving closely together close to the shore in Urquhart Bay - which Mr O' Faodhagain believes are two Nessies.

He said: 'The day of the sighting was extremely windy, as you can notice from the trees moving over and back. When I noticed the two strange shapes first they were either side of each other and not behind each other, going in the same general direction. Never did I think it was two humps from the one animal, the sighting did not give me that impression.'

Mr O' Faodhagain, from Co Donegal, Republic of Ireland, added: 'The two strange shapes were identical to each other, and that also gave me the impression it was two separate objects. 'I was quite startled to see two possible Nessies on the webcam. I think it's a bit of a rarity to view this.'

Mr O' Faodhagain estimates the objects were both in the region of 20ft long and reaching about 5ft out of the water. He said: 'I have never seen two objects so close to each other on the webcam before and I have been watching for years. Their shape in the water is very strange.

Mr O' Faodhagain, from Co Donegal, Republic of Ireland, saw two dark objects moving closely together close to the shore in Urquhart Bay 'What are they, I don't know. They could be two Nessies.' Mr O' Faodhagain has now spotted the Loch Ness Monster four times altogether, and three times in 2019 alone. 


While we are on this article, the Mail quotes the owner of  the webcam, Mikko Takala: 

Mikko Takala, a computer scientist who has been researching Loch Ness for over 20 years, believes climate change may have effected the increase in sightings of the legendary creature. He said: 'There has been a slight increase in surface temperatures in Loch Ness due to climate change and it is possible that a cold blooded creature like Nessie may be encouraged to return and/or stay longer in the warming waters of Loch Ness.

'We believe that the recent winter was milder and less road salt was spread as a result (the previous winter saw thousands of tonnes spread locally during a long cold treacherous spell). 'It all finds its way down water courses and into the loch raising saline content and that may deter the monster(s) to the point at which they leave it until levels normalise again.' On the possibility of there being more than one Loch Ness monster, he added: 'I've always believed there has to be a family of unknown creatures in the loch, albeit a small one.

'It's too much of a stretch to believe that a single creature can live for hundreds, if not thousands of years or more. Also, there are cave like formations near Urquhart Castle, known as Edwards Deep and no attempt has ever been made to see if these are navigable.' 

Are Nessie sightings on the increase due to climate change? In a recent article I penned, I argued the exact opposite, sightings are down historically due to climate change. The problem here is relative, I am looking over the decades as there is a real drop since the 1960s where Mikko is looking at the recent uptick in reports. The problem for me is that a lot of the claimed sightings made in recent years do not come up to standard of older reports and I doubt would have made it past older researchers. It seems today any report that comes with a picture or video is automatically hyped by the media and gets logged as the genuine article.

UPDATE:

I had a look at the satellite images over Urquhart Castle to guess where this webcam might be. Based on the topography of the immediate area in front of the webcam, I have included this map to circle the area and the line of general sight (though that depends on the orientation of the camera). It looks like the camera is pointing over the busy area of the Castle. Why is the castle not visible? This is because the area in question is high above the castle and the main road which will be out of sight.



I could be wrong, but draw your own conclusions. This location is several hundered metres from the loch.
 


The author can be contacted at lochnesskelpie@gmail.com


Thursday 18 July 2019

Loch Ness Mystery Blog Nine Years Old Today.




Happy Birthday to me.

It was on the 18th July 2010 that the first rather innocuous post was logged onto lochnessmystery.blogspot.com. Nine years later the blog is still running, still posting and still here. The tally of articles is now six hundred and ninety six (including this one) with the number of page views now in the millions since defending the famous Loch Ness Monster began.

The range of articles has varied in content and depth, some just simple announcements ranging to articles series such as the five articles on the Peter O'Connor photo and the four devoted to the Lachlan Stuart picture. The article with the biggest number of hits is "The Hugh Gray Photograph Revisited" at 88,500 page views and not far behind is the article on the 2012 Marcus Atkinson sonar image with 83,118 views. How many unique users that equates to is impossible to calculate.

Meantime, the site continues to at least appear on the second page of various search engines, but has gone as high as third ranking on Google (below). It rather depends how many articles I churn out it seems. In terms of global coverage, 45% of the views come from the USA, 22% from the UK going down to the likes of 0.5% from Spain.




A perusal of the various articles should make it clear where this blog stands and the strap line at the top is as true today as it was in 2010 - Reclaiming the Loch Ness Monster from the current tide of debunking and scepticism. Since the late 1990s and the rise of the Internet, the noise of scepticism and its errant child, pseudo-scepticism has grown with every browser refresh. Though there were cryptid websites around, there was an imbalance in the debate which needed some more counter-weight. Therefore, the remit of the blog can be broken into four areas:

  1. Counter sceptical arguments against the phenomenon.
  2. Promote arguments and theories in favour of a cryptid view.
  3. Cover current and folkloric aspects of Nessie culture.
  4. Write on the history of the monster hunt and its personalities.

One may ask if this implies total gullibility as every sighting, photo, film and sonar is swallowed as evidence. That is not the case if one reads through the blog, but certainly the logical and scientific facade displayed on the other side is rather the opposite of gullibility to me - namely cynicism and negativity towards cryptid theories and their adherents. This is exemplified in the attitude that not one witness out of the thousands has ever accurately described what they saw and not one case is ever problematic.

So be it, but this blog does "Messy Nessie" insomuch that it is bolder to accept various cases while others sit on the fence or run away at the first sceptical debunking. That means we get it wrong sometimes, but I don't really care much for that as it is not the intention of this site to protect a reputation or ego. We shall leave that to others.

Likewise, the odds of being proven right on any case as opposed to wrong is small as that means the monster has been proven to be a large, exotic animal. One thing you can be sure of, the sceptic and pseudo-sceptic are safe in their comfort zone while that situation persists. Denounce everything in the safe knowledge that it is unlikely they will be caught with their pants down when a carcass is pulled up the next day!

So here is to hopefully another nine years of blogging Nessie. Where you and I will be in 2028 is unknown, but I am pretty sure one or more monsters will continue to be seen.


The author can be contacted at lochnesskelpie@gmail.com




Friday 12 July 2019

Ted Holiday Interviews Loch Ness Monster Eyewitnesses (audio)




Here's a treat for all Nessie fans as famous monster researcher, Ted Holiday, conducts audio interviews with various eyewitnesses to the Loch Ness Monster. How this came about was thanks to Will Matthews, a Fortean researcher from the USA, who had been helping with the processing and archiving of material by the late great Ivan T. Sanderson and his organisation, the Society for the Investigation of the Unexplained.

During this unpacking, his friend indicated he had found an old audio reel tape of Ted Holiday conducting interviews with five monster witnesses lasting about 30 minutes. These were played back on an old tape player and he recorded them on his phone. He sent me a copy and I have listened to these interviews and was excited to hear the actual people talk about what they saw back in their day many years ago. In particular, I was very glad to hear the voice of John McLean recount his close up encounter from 1938.

In sequential order, the eyewitnesses interviewed with the years of their sightings are Hugh Ayton (1963), Peter Hodge (1965), Tom Skinner (1952), John MacLean (1938) and Alistair Grant (twice in 1963). The link to the audio is at the end of this article, but I would like to make three points regarding these and eyewitness recordings in general. Firstly, you may ask where can you find other recordings of eyewitnesses? During the 1960s and 1970s, Loch Ness was a hive of monster hunting activity as researchers pursued not only the creature but witnesses to it. Many were recorded onto audio media by the likes of Ted Holiday and Tim Dinsdale and I have no doubt there were others. But today you will struggle to find any of this even on the vast sprawling Internet.

The reasons are two fold. The cassettes and tape reels still exist, but those who hold them are doing nothing about digitising and putting these online. That is partly down to time, resources and trust. They personally do not have the time, money or know-how to do the conversion but at the same time, they do not want to hand over the items to relative strangers to do it for them. That is understandable to a certain extent but leaves us all in limbo.

The second reason is that there are those who hold these legacy items from past researchers and organisations but are not inclined to do anything public with them because they do not believe in the Loch Ness Monster, so why go to the trouble over something that was likely a log or a wave? Indeed, why encourage belief in these annoying monsters at all? It is better to stay quiet and do nothing. Well, there is one overriding reason for them to go that trouble and that is profit, but I will say no more.

But focusing on Holiday specifically, he not only recorded these interviews but transcribed them for his book, "The Great Orm of Loch Ness" in 1968. In Holiday's book, we have the transcripts of nine eyewitness interviews. Of the six eyewitness accounts on the audio, all but Hugh Ayton appear in the book. The four eyewitness transcripts that are in the book but not the audio are those of William John Holme, David Wathen, Simon Cameron and John Cameron. This certainly suggests a possible cache of other audio tapes created by Ted Holiday which are currently beyond public reach.

The second point is how accurate was the transcription process from tape to book? On listening to the John Mclean audio interview while following its text version in the book, there had been editing by the publishers as unnecessary phrases such as "you know" and vocal pauses such as "errr" and "umm" were omitted.  Some sentences had been removed for the sake of summary which had no material effect on the account itself and personal details were removed. In other words, there is no conflict between the written and spoken word.

The third point is that, as you might expect, the hand of the pseudo-sceptic is in here as they try to discredit and debunk anything that elevates the Loch Ness Monster story and these audio interviews would be no different in that respect. In this case, they have accused Holiday of asking leading questions to influence the witnesses' answers. A leading question is one that prompts or encourages the answer wanted, either consciously or subconsciously. But can Holiday be accused of this? If one asks a witness "How big was the Monster?" as opposed to "What was the length of the object?" you would be correct in saying the last question is more neutral than the first one. However, is such a line of questioning going to turn everyday objects into thirty foot monsters? Even deciding what is a leading question and what, if any, effect it has on the interviewee may be in the eye of the beholder and their own confirmation bias (whatever side of the monster debate you are on).

But Holiday does sometimes ask non-neutral questions, suggesting answers such as "round" when asking about the shape of the creature to John MacLean. Given that Mclean's sighting had been publicly available in the press and in books such as those by Whyte and Dinsdale, it hardly seems relevant to talk about leading questions. All the information was already out there whereas the idea behind leading questions is to produce new but false information.

This would also apply to the Skinner report of the prior decade and the Ayton/Grant interviews were done one year after the event. However, the Peter Hodge interview was done on the same day as the event and Holiday may well have been their first interviewer. Listening to that and the parallel text, I saw no leading questions apart from one when Holiday asked what may have caused the creature to turn from shore and suggesting a car in the same breath. Obviously, this had no bearing on the actual description of what was seen.

So, in my opinion, the attack regarding leading questions can be put aside as I invite you now to listen to these 34 minutes of the best type of monster talk - eyewitness talk. The audio can be accessed at this link and the transcripts of each sighting can be found at these pages in the first edition of the Great Orm book:

Peter Hodge pp.74
Alastair Grant pp.78 (twice)
John McLean pp.82
Simon Cameron pp.100
Tom Skinner pp.151
William John Holme pp.157
David Wathen pp.165
John Cameron pp.167


The author can be contacted at lochnesskelpie@gmail.com







Sunday 7 July 2019

Video of the Loch Ness Monster?


Here is a video taken back in January this year that I did not see before. Perhaps it was not publicised and it was a fellow Nessie enthusiast that alerted me to it last week. I believe it was taken by an Australian by the name of James Petch right at the beginning of the year while they had a Christmas and New Year holiday in Britain. You can see the whole video here.

Having watched it, I am not sure anything solid is seen at the surface and this naturally brings to the fore the wave explanation. Just as the old legends used to talk about "waves without wind" we wonder if this is a "waves without boats" scenario?  The owner helpfully pans his video recorder across the loch and no boat is to be see, which is perfectly understandable for early January when boat traffic is minimal.

I know it is said that boat wakes can persist for up to ten minutes after the vessel has passed, but I see no evidence of a boat that is ten minutes gone in the panning of the loch. However, on closer inspection at about 10s into the video, a line of three smaller waves is seen to the right and at 1m20s in, one wave disappears at the spot to be replaced by one just further to the left. Also, there is a faint suggestion of a completed bow wave in its environ suggesting it is indeed part of a decaying boat wake.

So while the person exclaims "what else can it be?", there is something else it can be. While I am on the subject of objects in Loch Ness, here are three pictures put forward as possible evidence of the monster. The first was taken in February this year, the second last August and the third in June, All have made in into the media as "Nessie" photos.





Now I had already pointed out that the June picture was just the log below seen in the bay, but it didn't twig (excuse the pun) that other two claimed pictures were of the same object. How many people are going to picture this decidedly non-Nessie object and tout it to the press? I suspect there may be more, let's hope not. Alongside this trio there is the issue of the Hayley Johnson picture covered in May 2018,



Now I was not inclined to say the Johnson was the same log as, well, it did not look like it. However, it is in the same area as the log and one would have to argue the log somehow stayed out of view. Another layer of interpretation would be required here such as a video artefact which muddied the image, but I am not going to defend this picture with much zeal.




Perhaps some person will move this pain in the ass log so we do not get yet another Nessie picture from this spot which the witness claimed submerged. Meantime, we await more pictures of the quality of Roy Johnston, James Gray, William Jobes and so.


The author can be contacted at lochnesskelpie@gmail.com







Wednesday 3 July 2019

Sonar and an Article on Cruise Loch Ness


I spotted this on the Daily Telegraph, but I think it is only available to subscribers, so here is an insight into how the Loch Ness cruise boat industry works. I went on the new Cruise Loch Ness boat last April and it was an enjoyable and interesting experience, but more on that at the end of this article.



Not every small business owner can say they offer customers a chance to get up close and personal with a legendary monster, but Debi Mackenzie can. For more than 50 years, her tour company Cruise Loch Ness has ferried curious clients back and forth across Scotland's second-deepest loch. Most come to learn about the region's history and geology, but in the back of their minds is always Nessie, she explains. "There's no getting away from it – people are mystified by the creature!"

Based in Fort Augustus, a "quaint little village" on the banks of the loch's southernmost point, the family-run firm offers a range of scenic and exhilarating tours. Its standard offering is a 50-minute cruise that runs several times a day to Invermoriston and back, while more adventurous travellers can take a rigid-hulled inflatable boat (RIB) to Foyers, Urquhart Castle and beyond at high speed.

"We try to cater for all ages and budgets," says Mackenzie, who thinks that her company's key differentiator is its local workforce. "Our staff are well versed and very passionate about the place, as most have lived here all their lives." The director isn't local; she used to work in banking in Glasgow. In 2010, a mutual friend introduced Mackenzie to her now husband Ronald, the owner of Cruise Loch Ness. His father Norman launched the enterprise with a second-hand lifeboat in 1968.

The couple began dating, but living a three-and-a-half-hour drive apart proved tough. "One of us had to move, but Loch Ness is Loch Ness and we couldn't shift that," jokes Mackenzie, who relocated to Fort Augustus in 2012 and took a job with a local bank. "This was about the time the business began to take off and Ronald was working really hard on it, doing pretty much everything himself."

He asked his partner if she wanted to come aboard. "He expected me to say no, but I loved rural life," she says. "I wanted to see what we could do together to make the company even better." Ronald's time was mostly spent working on the boats, which meant that the back office suffered. Mackenzie used her banking expertise to introduce new finance and administration processes. "Everything became streamlined," she says. A new website and bespoke booking system brought even more efficiency and a better customer experience. Business increased by about 20pc each year after that point, she claims.

The family slowly but surely grew its fleet of boats to meet demand, but by 2017, a much larger passenger vessel was needed. With nothing suitable second-hand, the Mackenzies commissioned a new build. It was "stressful" and a "huge risk", admits the director. "When you're a home-based business working from laptops, you don't expect to spend £1.5m on your next piece of kit."

The custom craft, Spirit of Loch Ness, was launched last year and brought capacity across the company's five boats to more than 350 people. Word of mouth marketing, local tour operator partnerships and a new social media strategy have all helped to keep bookings high.








One of the company's rigid-hulled inflatable boats Credit: Cruise Loch Ness
With nine award wins over the past year (including being crowned small firm of the year at the recent Federation of Small Businesses Awards), things are looking up for the enterprise, which employs 18 people in peak season and has an annual turnover of £1.6m. But Mackenzie and her team aren't getting comfortable. "We're always worrying about keeping things attractive so that people want to come," she says. The remoteness of Loch Ness can be a challenge. "It's a popular tourist destination but still in the middle of nowhere," she states. "With rising fuel costs and so on, people don't always make the effort to come that bit further north."

Winter trips can also be a difficult sell. "The village is so quiet and quite a few shops are closed," says the director. "It can be hard to get tourists to the village when it doesn't offer as much as it does in the summer." Fort Augustus being so isolated also makes it tough to attract talent, but Cruise Loch Ness is "lucky" in that it employs so many locals. "We're family," says Mackenzie. "Ronald grew up with most of them, which can present challenges now that he's their boss, but there's also a lot more respect."

The secret to keeping staff happy is simply to look after them, she thinks. "Pay them well and listen to their concerns." Her advice is to hire people who are as passionate about the business as you. "Our employees give the same tour presentation seven or eight times a day, but they do it consistently well because they really care about the company."

Having family members running the firm means there will always be passionate and dedicated people leading it, but working and living together can be hard. "It can feel like it's 24-7," says Mackenzie, who has two young children with Ronald. To fit everything in, they're often up at 6am writing emails, which can be physically and mentally taxing.

The flip side, however, is that the highs are much higher. "Being able to celebrate the wins together as a family at the dinner table is really nice." Cruise Loch Ness will soon open a new booking office, which will "transform" how the team works. "Ronald and I will have an on-site office space and a person purely focused on admin," says Mackenzie. "It's going to make a big difference." Two new RIBs are also on order. "There's going to be a lot of shiny new boats."

Could the future also hold a new sighting of Nessie? Mackenzie isn't sure, but adds that stranger things have happened. "A few years ago, one of our skippers captured an image of a large object on his sonar device screen," she explains. "It was quite deep below the water and a few metres in length, which is very unusual."

She is of course referring to Marcus Atkinson's 2012 sonar contact, but going back to my own recent experience of the boat, I do take a somewhat contrary position in watching the sonar screens more than the waters outside. According to one of the older staff I spoke to, the boats have had about 600 sonar contacts over 10 years, most of those which were GPS tagged and when revisited were gone. 

One crew member said he had once seen a sonar contact on the screen which required his thumb to cover it. What that quite meant in terms of the physical dimensions of the corresponding object under the waves is another matter, but as I watched the screen, I did spot my own sonar blob which aroused my curiosity. You can see it in the photograph below as the blue dot just above the loch bed above the "6" of "64.0".



The depth would be about 140m (460ft) going by the vertical scale on the right. You can see the smaller dots representing fish near the surface, but this blob is somewhat bigger, but not hugely. Though it has to be remembered sonar images denote changes in density and not physical size. So what was it? A seal (unlikely since they are not indigenous), a salmon kelt, ferox trout or something else?

The route did not allow to check whether it was still there on the way back, that would require paying for another trip and going over the same spot.  However, one sonar contact of interest roughly every week on average since 2009 makes one wonder what other cruise boats are seeing on their boats? The aforementioned 2012 sonar contact may have comparable ones which have received little or no publicity (such as this one). It would be good if they were made available for examination and discussion.


The author can be contacted at lochnesskelpie@gmail.com

Wednesday 26 June 2019

3-D Model of Loch Ness




I collect many items related to Loch Ness and its Monster, so I came across this nice little item on eBay which is a 3-D print of the loch based on the 1903 bathymetric survey done by Sir John Murray. The description runs thusly:

3D Printed High Detail Bathymetric Survey Model of Loch Ness created from original info obtained in 1903 by Sir John Murray.
This model gives a unique view of what the Loch looks like under the water.
1000mm version - Scale 1:38,000 Horizontal & 1:19,000 Vertical.
A large scale model of this is on display in the Loch Ness museum.
Printed in Glow in the dark green or blue PLA.
All models include a recessed area at the bottom for a UV LED strip Light. (included)
This will come in 3 sections that are not fixed together.
 
It's not my cup of tea, but others may be tempted to spend the £88 on it. There is also a cheaper but smaller unpainted model listed by the same seller here.
 
 
The author can be contacted at lochnesskelpie@gmail.com