Notice how the shape and the height of the cargo and the boat structures are changing.
I sent the video to Dr. Andy Young. Here's what he writes:
"Yes, mostly towering. But there is a weak mirage visible for a second or two, in the early part. Look at the features just behind the bow of the ship -- the vertical features that are shorter than the big piles of containers on the deck. About 0:38 to 0:40 there is a break visible in one of them, so that there are really 3 images of its top. Again, between 0:50 and 1:12 there are brief glimpses of mirages just behind the bow (forward of the feature miraged at 0:40).
Later on, toward the end of the video, there's pronounced stooping of
the piles of containers. You can see lots of magnification changes near the height of the top of the haze layer in the background; so that haze is confined beneath an inversion, which is doing all the work here.
