Above is a NASA loop showing the flood waters pouring out from the Gusinaya River over the five day period of June 4-8. (The problem is figuring out which Gusinaya River. I don’t think it is the one out on Wrangle Island, but rather one in East Siberia).
The thing to be aware if is that this is happening all around the Arctic Sea, as huge north-flowing rivers turn from winter trickles to summer floods. For example, the Lena River is nearly frozen to the bottom in February, with only 3% of its yearly flow occurring that month, but then rises over sixty feet by summer. The influx of all this fresh water along the arctic coasts greatly changes the nature of the sea-ice along the shores, tending to swiftly make it more slushy. At first the fresh water is very cold, as it is from melting snow, but later in the summer it can create relatively mild areas of open water by the deltas. The fresh water tends to form a “lens” over the more saline waters.
There can be relatively rapid melts close to the deltas, but the water’s heat is quickly used up by the transformation into latent heat which occurs during the melting process. There tends to be a lot of arguing about what happens next, as the water sometimes stratifies and can be identified over time and distance, and sometimes gets churned and mixed by storms.
In any case I thought the picture of the flood was interesting. I used to be baffled by how quickly coastal ice could vanish in places, such as the Mackenzie River delta in Northern Canada, before I became aware of the colossal yearly floods. What is fascinating me now is how the floods vary, due to droughts to the south, and how this can effect sea-ice. Also I ponder the differences in the timing of floods; some years they are earlier and some years they are later.
Currently there is a very meredional flow, with a stream of unusually mild air streaming north from the middle of Asia all the way to “Ralph” up at the Pole. Alarmist are quite excited, as there are records being set for warmth on the coast of the Laptev Sea.
Of course, on the other side of that cold front, cold air is streaming south into western Russia, where records are being set for cold temperatures.