Tag Archives: UAF

PolarNOx at Poker Flat

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Rocket Launch at Poker Flat; Photo credit: NASA/Chris Perry

NASA and the University of Alaska Fairbanks’ Geophysical Institute teamed up with some scientists from Virginia Tech University to launch a sounding rocket over the weekend at the Poker Flat Research Range.

The Polar Night Nitric Oxide (PolarNOx) experiment saw a hang fire on the first night of their launch window, but the rocket was launched successfully on the second night.

The aurora borealis adds nitric oxide to the polar atmosphere, and levels increase in the winter months, but then dissipate in the summer months, with the increase of sunlight.  Nitric oxide will destroy ozone under certain conditions.  The sounding rocket was launched to collect data to better understand the build up of nitric oxide.

Nitric oxide exists between 53 – 93 miles altitude, with its peak concentration between 62 – 68 miles altitude.  The sounding rocket rose to an apex of 161 miles above the earth’s surface, before coming back down to our very frozen Interior.

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The landing pad; Photo credit: Poker Flat Research Range

For those who were up in the early morning hours to witness the launch, the rocket was seen from all over the area.  I had planned on being out there, but I was forced to make a quick run to the border instead.  At least I saw a lot of caribou.


Twenty Twenty

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Campus Fireworks: University of Alaska – Fairbanks

Wishing you all a very enjoyable (and adventurous) New Year


Happy Winter Solstice

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“High Noon” on the University of Alaska campus in Fairbanks


Hockey in Fairbanks

Friday & Saturday were Hockey Nights in Fairbanks

Puck about to be dropped on Saturday. Anton Martinsson in net for the Nanooks.


Kolmakovsky Redoubt

The Blockhouse; built 1841

The Russian-American Company was established in 1799. The RAC received a renewable 20-year charter, which granted the company exclusive rights over trade in Russia’s North American territory.

The fur trade led the RAC to build a trading post on the Middle Kuskokwim River in 1841, which they named Kolmakovsky Redoubt. The blockhouse, above, was the first building erected. Eight more structures would also be constructed.

A map showing location of Kolmakovsky Redoubt on the Middle Kuskokwim

Kolmakovsky was the only Russian redoubt to be constructed in Alaska’s Interior. After the United States purchased Alaska from Russia in 1867, the redoubt eventually transferred to the Alaska Commercial Company.

The blockhouse stood alongside the Kuskokwim River for over 80 years. In 1929, the building was donated to the University of Alaska. The eight-sided log building was dismantled, the logs numbered, and then shipped to Fairbanks. It remained in storage for the next 50 years.

In 1982, the blockhouse, which has a diameter of 17′, was reconstructed behind the Museum of the North, on the UAF campus. In 2009, the University received a grant from the “Saving America’s Treasures” program to to do an all out restoration. A concrete pad was poured, any rotten logs were fabricated as the originals, and the roof was rebuilt. All but one of the interior horizontal roof supports are original.

The spruce logs are all connected by interlocking dovetail notches. There are no windows, only a low doorway, and three narrow musket slots. The Kolmakovsky blockhouse is the only Russian blockhouse ever found with a sod roof, the rest were all built with a plank roof.

Today, the blockhouse from Kolmakovsky Redoubt is still located near the Museum of the North on the University of Alaska – Fairbanks campus. The Kolmakovsky Redoubt site on the Kuskokwim has been placed on the Alaska Heritage list of historic properties and archaeological sites. A detailed excavation of the site was completed during the 1966 and 1967 summers by UCLA professor Wendall H. Oswalt. Well over 5000 artifacts were excavated, which are now a part of the collection at the Museum of the North.


Denali Fault Quake

Photo credit: Daily News-Miner

This week is the 17 year anniversary of the 2002 Denali Earthquake. At a magnitude of 7.9, to date, it is the largest quake I have personally experienced.

On 23 October 2002, the Denali Fault released a magnitude 6.7 quake. That would be a foreshock of what was to come on November 3.

Highway Shift; Richardson Highway, circa 2002

After the 6.7, I remember the Alaska Earthquake Center saying that the Denali Fault was capable of producing an 8.0. Sure enough, the fault came very close.

I was at an intersection in my ’66 Chevy C-20. All of a sudden, the truck was lurching all over the place, and I found it hard to stay on the brake pedal. There were two university students in the next lane, the passenger rolled down his window and asked what the hell was happening. I said, “Earthquake”. He then promptly hit the driver on the arm and said, “I told you it was an earthquake”.

The light changed, I drove on, but had to stop at the next light. The earth was still shaking. An elderly couple had been walking on the sidewalk, and the wife fell to the concrete, the husband was struggling to stay upright by hugging a signpost. Then the shaking was over. I rolled down the other window, to see if the couple was all right. They were, and I headed home to see if there was any damage.

The quake had ruptured 205 miles of earth along three different, yet connected faults in Interior Alaska. It was the largest ever recorded in Alaska’s Interior. It was the largest inland quake North America had seen in almost 150 years.

Both the Parks & Richardson Highways saw major damage. The Trans-Alaska Pipeline moved sideways 18 feet, and rose 5 feet. The engineers had designed for the fault, and the pipeline behaved exactly as it was designed to behave. Although, it did come within two feet of its sideways movement limit.

The Denali Earthquake was felt as far away as Louisiana.

Previously, the largest earthquake Fairbanks had experienced was a magnitude 7.3 in 1937.


Aurora Season Returns

It’s that time of year again. The aurora forecast from UAF’s Geophysical Institute is up and running again. A moderate aurora is being forecast for Thursday, with it being visible directly overhead for Fairbanks, weather permitting.

In Canada, Dawson City, Fort Nelson and Fort McMurray will find the northern lights directly overhead, assuming cloud cover doesn’t obscure viewing.

The aurora will be low on the horizon for Marquette, Michigan and Sundsvall, Sweden.

An equal, but opposite aurora will be taking place in the Southern Hemisphere, as well.

The Geophysical Institute at the University of Alaska – Fairbanks puts out their geomagnetic forecast daily.

All images credit: UAF Geophysical Institute


Walking Poker Flat

Entrance to Poker Flat Research Range

It’s early August and people were starting to think “white stuff”. I had three jobs lined up, everyone desperate for me to start, yet not one of them was ready for me. What to do with the day off?

As luck would have it, Poker Flat Research Range had one of their summer walking tours that day, so I drove the 25 miles out to Chatanika.

“The Blockhouse” or bunker

PFRR is the world’s largest land-based rocket range. The facility is owned by the University of Alaska – Fairbanks. They launch sounding rockets from the range, in order to study the Earth’s atmosphere and the interaction between the atmosphere and the space environment.

Space junk returned to Earth

Study ranges from the Earth’s magnetic field to the aurora. NASA is prominent at the range, but researchers come from all over the world. All of the rockets launched from PFRR return to the Earth’s surface, and the range collects the spent payloads every summer. There is a reward paid out to anyone finding material from Poker Flat.

Poker Flat Launch Pad

The building above is open on the far end. The interior of the building, and the actual launch pad, was off limits to photography. It’s a NASA rule that doesn’t thrill UAF apparently, but we all honored the rule. The sounding rocket is brought in on what is basically an open trailer. The rocket is loaded onto the launcher, which looks like a giant erector set with a large pivot. The building itself is sitting on a pair of tracks. When ready to begin countdown, the building is pulled back away from the pad, and the rocket is spun vertical with the large erector set pivot.

Mission Control

The control center was surprisingly manual in operation. Scientists are extremely fussy about launch conditions, and they often pull the plug with one second to go. An automatic system does not give the flexibility that is needed, so there is still a “launch button”.

Power central

That doesn’t mean there is a shortage of cable, wires, or connectors.

The touring rocket

PFRR does a good job with the tour. It’s pretty relaxed, and a nice way to spend some time outdoors, for the most part, in an Interior Alaska summer. After the tour, don’t forget to stop by the Chatanika Lodge, which is just down the highway.


Campus Dipper

UAF’s Patty Center

Camera: Leica M3; Film: Kodak 35 TMax 400


Cooler thoughts


The ice climbing wall at UAF; Camera: Leica M3, Lens: 135mm, Film: Fuji Superia 800

With the extension of these unusually warm temps here in Interior Alaska, let’s go back to this past March, when snow was on the ground, and the UAF students were climbing the ice wall on campus.