@heathcarmody2867

@heathcarmody2867

Heath Carmody | 10 Ferry Passes Swanalyzed (From Test #4) @heathcarmody2867 | Uploaded November 2022 | Updated October 2024, 1 day ago.
More from 12 km point observation #7. Using the second camera as an angular size and height reference, I was able to fairly accurately compare 10 different ferry passes over a 6 hour observation.

For this video I am only comparing the physical (geometric) globe model, although the flat refraction requirements are shown (flat ray radius). Since we can calculate the geometric globe horizon location and place it within the image, we can compare both the apparent horizon and the apparent height of the 11 meter point on the ferry vs. the geometric globe horizon calculation.

This analysis being fair relies on a few imprecise measurements that may introduce mild inaccuracies to the results. I'm working on a video that will show how I came up with these numbers, and how I can double check everything again now and/or next season. These first tests were mostly to see what kind of useful data can be gathered using the two camera setup. Improvements to accuracy and presentation of the results will come with future tests and analysis.

$10 Ferry Passes Swanalyzed (From Test #4) More from 12 km point observation #7. Using the second camera as an angular size and height reference, I was able to fairly accurately compare 10 different ferry passes over a 6 hour observation. For this video I am only comparing the physical (geometric) globe model, although the flat refraction requirements are shown (flat ray radius). Since we can calculate the geometric globe horizon location and place it within the image, we can compare both the apparent horizon and the apparent height of the 11 meter point on the ferry vs. the geometric globe horizon calculation. This analysis being fair relies on a few imprecise measurements that may introduce mild inaccuracies to the results. Im working on a video that will show how I came up with these numbers, and how I can double check everything again now and/or next season. These first tests were mostly to see what kind of useful data can be gathered using the two camera setup. Improvements to accuracy and presentation of the results will come with future tests and analysis.$ $Paddlin on the Edge Super strong upward refraction day causing much more obstruction than an actual globe would, even from many meters above water and continuing after the air temperature warmed above the water temperature. Warm lake water after an unusually cool evening produced a very strong and close inferior mirage early in the morning. This was another fairly boring observation with little change, even when the wind picked up. I did my best with this short segment of an otherwise uneventful 4 hour morning observation. Camera was no more than 20 inches above very choppy water. Waterproof Canon camcorder - poor picture quality but excellent stability in the wind. I had it set up on a drift log near the stream mouth. Im also just finishing another video of the full time lapse from 4-5 meters. Trying to salvage some very shaky footage. More on this observation in future videos. From Lake Revy observation # 4 - August 6th, 2022.$ $A Minute for my Weekend (Not a Superior Mirage) 1 minute selection of raw footage from my 11 hour, 2 day weekend observation. It was likely my last chance for the season as another unseasonably warm stretch of days is coming to an abrupt end later this week. I will be making plenty of videos over the next few months that will better explain what I think is going on with refraction in this scenario (and other similar observations). I would like to get some input and discussion going on these complex mirages, which I think are not as complicated as they look. Video quality is poor since I couldnt record in 4K for this long, and I was into the digital zoom a bit. This is probably my only video that looks better on a smaller screen.$

Foogle Flearth

Things are ramping up quickly.

$Super Speedswan (Concave Earth from Lower) Challenged myself to make a video in under an hour! Also had to make it fit a short song that I dont particularly like but that kind of works with my footage. I had to do something with this footage but I didnt want to make a long video like my last one, with essentially the same view but lower elevation (and quality). This is from the same observation as my last video (Black Swansynth) only this time from my Canon waterproof camera placed mere inches above the surface. The hazy beginning part (up to the finger scene) is 1 second time lapse video sped up considerably more. In fact, thats more than half of the 3+ hour footage used. The rest was real time video which records slightly higher quality than time lapse. I sped up most of these segments 8000% to compress it enough to fit the song length. Some segments are played relatively much slower, but its hard to detect the speed changes with this sort of refraction effect(s). As with the higher elevation footage, the ferry at 10.5 km, and the far shoreline (13-14 km), remain visible well above eye level. Its difficult to tell exactly how much the horizon rose from start to end, since the camera got bumped during the time lapse and there are some cuts in the later footage where the camera was repositioned slightly. The important thing to note is how steady, long and strong, this black swan event remained throughout the evening. Now its on to videos for test day #3..$

In-Ferry-Or Mirage Day 5! Never Disappointing.

Trippin Flat Earths on a Ball!

$Ant Work (2 hour free cam observation at super speed) The main song used in this video is called Antwork and I thought it was a somewhat fitting title for this video. After a holiday long weekend consisting of a single mediocre observation attempt and hours spent editing the footage from my last 2 test attempts, I realized I wasnt even going to have one new video finished to show for it. Skipped back a few observations to 12 km point #3 (#4,5 and 6 were test days) where I had great visibility (but strong refraction distortion) and black swan conditions for the entirety of this shorter than usual 2 hour observation. Rather than spending hours painstakingly editing the footage from my free camera, which is normally full of shaky and boring footage as I pan around between different points of interest, I thought I would just speed up all the footage as is, set it to music, and see what happens. Yes, its a little lazy and boring, but its still more exciting than my next few videos will likely be. In this observation, black swan (concave appearance, no obstruction) conditions were observed. This is a common occurrence when the air temperature peaks slightly above the average water temperature. This footage ends right where the footage for Ghost Ship part 2 begins, which means Ive now published (almost) all the footage from one camera, from one observation! More to come..$ $Assuming Things Back to making videos again after a little break. This is a short video that I started back in October and put on the back burner until I had more time. This is footage from the start of observation #8 at the 12 km ferry observation location. Full analysis of this final test day coming soon, while I patiently wait for the spring observation season to begin. This is an observation of close, strong inferior mirage and obstruction caused by upward refraction at low elevations. At least until we get to a far enough distance and high enough elevation that Earth curve must be assumed to be the primary cause of any downward displacement.$ $In-Ferry-Or Mirage Day 3! More of the same. When trying to capture a transition between greatly different refraction conditions, timing is everything. Three observations of nothing but inferior mirage on 3 similar days and times. This observation started later in the morning than my last two. This time it did start to break as I was packing up, but I didnt capture any on this camera. Maybe I need more batteries? Definitely could use another camera or two.$ $More Footage of Water Bands and complex inferior mirage Seen Together🤔 Even more footage of a later, early evening ferry trip from observation #10 at the 12 km point. Same location/day/information as the last 3 videos. Camera height about 4.5 feet. Ferry 13 km max distance far shore to 10.5 km at passing behind 6 km land on right. 10x (mostly) time lapse compilation, no edits, showing what I think is the effects of multiple layers of slightly different refraction gradients, spread across the super calm lake surface. Why am I spending so much time on this one observation? I feel it demonstrates a few things quite well and having compiled segments will be useful for upcoming videos. I also cant make new observations yet so Im going over past observations looking for video worthy footage. Full video coming soon comparing all the footage from the first trip side by side in real time, from 2 camera heights, for anyone who wants to help decode the bands!$

10 Ferry Passes Swanalyzed (From Test #4) @heathcarmody2867