Anchorage. I am assuming this is traveling south to north. The white specs are seagulls. Those birds are having a ball right now because the water is so shallow that the creatures that live in those waters are easy pickin's. This seems to me to be a drought ridden shoreline with falling water levels. This is where it gets a little complicated when it comes to lowering sea levels rather than rising when it comes to Global Warming. This is most likely 'isostatic rebound.' In other words, water is heavy. Something like 8 pounds per gallon, there abouts. Ice is heavy as well. As the glaciers melt the land is relieved of that weight and there is actualy continental uplift. That uplift results in sea levels falling along the shorelines whereas every other land structure WITHOUT ice melting is experiencing sea level rise because the water is going into the oceans rather than staying in ice formations. I have no idea Alaska was in this type of distress. Nor, did I expect the ice formations to melt exponentially this quickly. If this is a receeding sea level at the Alaskan shoreline? We are witnessing some major Global Warming effects and gross reduction of Ice fields in the Arctic. ISOSTATIC REBOUND requires the removal of huge amounts of ice to allow an entire continent to rise.