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You are browsing the archive for Arctic Archives - Page 2 of 3 - AGU Blogosphere.

4 November 2016

Should birds stay, or should they go?

One of the many tools birds use to migrate — besides the metal bits in their heads that help them sense Earth’s magnetism — is their ability to use infrasound. Infrasound consists of frequencies too low for us to hear. The aurora, volcanoes, underground nuclear detonations, and stormy seas emit infrasound waves. “Birds flying over the Rockies can hear the surf of both the Atlantic and Pacific,” Sharbaugh said.

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14 October 2016

Ghost towns scattered across Alaska map

During our 200-mile trip down the Porcupine’s length in Alaska, we saw no current villages, just the remains of a dozen former ones. That got me wondering about one of my favorite Alaska subjects. Do we have more than our share of ghost towns?

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12 October 2016

Video: Sikuliaq expedition recap

It’s been an incredible 28 days, full of good science, collaboration, and wildlife and ice viewing. Special thanks to the National Science Foundation, the R/V Sikuliaq, the University of Alaska Fairbanks, the Alaska Eskimo Whaling Commission, Oregon State University, and the Virginia Institute of Marine Science for making this trip possible

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10 October 2016

Ms. Callaghan’s Classroom: Walking on Ice

As the timing of our science projects got shifted from encountering ice and equipment that didn’t always perform as expected, we ended up with time to allow a side trip to go and walk around on a piece of sea ice.

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Pondering the infinite in Yukon Flats

An observer once said Yukon Flats looks like a place where God forgot to put something.

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4 October 2016

Earth’s expanding crust swallowed beneath Aleutians

Sometimes, a great idea arrives ahead of its time. A person squints at a raw landscape, thinks about it in his bunk on a heaving ship, dreams of it. He scribbles a diagram. He remains quiet years later as others rediscover the same thing.

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30 September 2016

Sikuliaq week 3 recap: the home stretch

We’re on the home stretch! Much of the scientific equipment has already been packed and the mood has changed from a final scramble to squeeze every bit of data out of ship time as possible, to a subdued transit lull in which people are catching up on sleep, tying loose ends, and coming to terms with wrapping up this 28 day cruise.

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29 September 2016

Questions From Students

Her students have questions, 6th grade science teacher Ms. Callaghan has answers from aboard the R/V Sikuliaq.

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23 September 2016

Ms. Callaghan’s Classroom: The Underwater Flying Glider

What’s a glider? It is an underwater robot that “flies” around the sea going from the surface to the bottom of the seafloor collecting different types of science data.

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Ms. Callaghan’s Classroom: The Underwater Flying Glider

What’s a glider? It is an underwater robot that “flies” around the sea going from the surface to the bottom of the seafloor collecting different types of science data.

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21 September 2016

Sikuliaq week 2 recap

We’ve done a lot of science this week! Since the last update, we’ve successfully towed the super sucker, started multi-coring, and upped our CTD tally to a whopping 87 casts, plus all the continuous surface underway data we’ve collected while steaming between sites. The scientists have some preliminary results and ideas about where they’d like to visit again (the beginning of the Wainwright line is of particular interest).

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19 September 2016

Ms. Callaghan’s Classroom: Sampling from the Sea

This is the latest in a series of dispatches from scientists and education officers aboard the National Science Foundation’s R/V Sikuliaq. Jil Callaghan is a 6th grade science teacher at Houck Middle School in Salem, Oregon. She is posting blogs for her students while aboard the Sikuliaq as part of a teacher at sea program through Oregon State University. Read more posts here. Track the Sikuliaq’s progress here. By Jil …

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Ms. Callaghan’s Classroom: Multi-coring

It was so cool to watch pieces of ice float by as we were working on deck! I’m standing next to the hose because we wash off the utensils (the metal sheet for cutting, the spatula used for scraping it into the bag, and the plastic ring) in between samples so that we don’t contaminate one layer with mud from another!

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Ms. Callaghan’s Classroom: Multi-coring

It was so cool to watch pieces of ice float by as we were working on deck! I’m standing next to the hose because we wash off the utensils (the metal sheet for cutting, the spatula used for scraping it into the bag, and the plastic ring) in between samples so that we don’t contaminate one layer with mud from another!

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7 September 2016

Keep your Berings Strait

Today is our first full day at sea after leaving the port of Nome yesterday morning. We’re traveling through the Bering Strait, headed toward a mooring about 30 miles off of Barrow, Alaska. (The mooring is actually that of Robert Pickart, a well known physical oceanographer who isn’t on this cruise.)

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Keep your Berings Strait

Today is our first full day at sea after leaving the port of Nome yesterday morning. We’re traveling through the Bering Strait, headed toward a mooring about 30 miles off of Barrow, Alaska. (The mooring is actually that of Robert Pickart, a well known physical oceanographer who isn’t on this cruise.)

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Sikuliaq Video Dispatch: Tour the Sikuliaq

A video tour of the R/V Sikuliaq.

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Sikuliaq Video Dispatch: Tour the Sikuliaq

A video tour of the R/V Sikuliaq.

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Sikuliaq Dispatch: No Place Like Nome

The man I met on the plane ride here was right when he said the roads in Nome lead to rivers and to nowhere.

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Sikuliaq Dispatch: No Place Like Nome

The man I met on the plane ride here was right when he said the roads in Nome lead to rivers and to nowhere.

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