Copper River Delta and Outer Coast
We finished our 4,200 km survey of Prince William Sound two days ago, and then we heard our proposal to do the Copper River Delta was funded as an add-on to this project, so we have been flying an extra couple of days on the enormous feature that is the delta. Many river channels, braided and anastomosing, sand dunes and mud flats galore, and marsh of all kinds - freshwater marsh, saltwater marsh, marsh that used to be salt but was uplifted 6 ft. in the 1964 earthquake so it's now trying to be fresh.
We used a helicopter one day and a fixed-wing (Cessna 206) today. These are pictures of Kalen and me setting up the plane this morning...
And a few hours later when our pilot (Dave, of Cordova Air) landed us on a beautiful beach on Kanak Island.
We went pretty far south and turned around to collect imagery all the way north along the outer coast. Two days ago there were gale force winds out there. Today the ceiling was only 100-300 feet off the ground, so we couldn't get as far down the coast as we would have liked.
At the southern end of Kayak Island is Cape St. Elias, one of the most spectacular sights of this trip.
We flew northward along the outer coast all the way past the delta to get imagery of the offshore beaches and barrier spits south of the delta, like this beautiful stretch of Strawberry Island with the Chugach Mountains in the distance.
One of the most unique things I've seen in all this shoreline is this flock of eagles, about 200 of them, all flying around and nesting on this tiny island in the southern Copper River delta where it joins the sea. I met an eagle biologist from Yakima, Washington on this trip and told him about it. He thinks it's because of eulachon spawning in the sandy nearshore. Eulachon are a type of forage fish, similar to herring and sand lance that spawn in the sandy interidal zone. We have recently used our ShoreZone data to model habitat suitability for forage fish spawning, and that was one of the reasons the Prince William Sound survey was funded. Small world, funny how things come around.
And have you ever seen sand dunes with snow on them?

