Alaska Science Forum: Looking back in time at the world’s oceans
A time capsule of satellite imagery of the earth will become available to scientists this month.
Mammoths and microblades: digging up ancient culture in Interior Alaska
On a small hill surrounded by boggy muskeg in the Tanana River Valley, prehistoric skin scrapers made of schist, polished slate tools and glass beads were uncovered in the last week.
Measuring glacier wastage
Every summer, Alaska’s glaciers melt and send vast quantities of water gushing through silty gray rivers, past towns and villages and finally into the sea. Some glaciers calve directly into the ocean, instantly losing car-sized chunks of ice and wowing boats full of tourists.
The art of ice coring
The trick to getting a good ice core is to drill straight down into the sea ice, continually clear the slush gurgling up from the ocean, correctly reassemble the core fragments on the tray, take its temperature every couple of inches before it melts or cools, and saw it into hockey-puck-sized chunks without dropping them […]