Wednesday, September 30, 2015

A little bit of Norway, a lot of fall

Just because this was the coolest rainbow ever....


Hej everyone,

I believe I promised some (now long overdue) pictures of Norway. While I could go on and on about the short weekend trip I took with my lovely roommates, these pictures will do a lot better job. I will say, however, that even in dark, cold, windy, and rainy weather, Norway is a truly unique and amazing place to be. In three days, we were only able to scratch the surface of the multitude of natural features and quaint towns that Norway has to offer. Just enough time to add about 100 things to my travel wish list. Needless to say, I will find my way back before my time here is up.

Stormy and spectacular

 
A small fishing village located in the Lofoten Islands


Blue skies and sunshine (that, of course, came on our way back home)
And in other news, while everyone back home has been celebrating the start of the autumn colors (and Dunk’s Pumpkin coffee), here in Abisko, we are appreciating the end of it. I used to think that the fall colors in the Rockies came and went too fast, but up here, fall comes and goes in the blink of an eye. The lush green valleys and hillsides that first greeted me six weeks ago are long gone. In their place stand only the skeletons of birches with small hints of the leaves that used to dominate the landscape. And it all happened so fast. At first, the green leaves of the birch trees were just barely touched with yellow tips, but like a titration with just one drop too much, the apparent slow addition of splashes of yellow hit a tipping point, and in what seemed like only a night, the entire landscape turned yellow and faded to orange. 


The green of summer 

The orange of autumn

And just as the green had to give way to yellow and orange, the golden leaves are now on their way out too. Luckily, I was able to see the end of fall from a pretty good view point…  

:)




While autumn, to me, will always mean aspen trees, football games, and freshly baked pumpkin bread- birch trees, kanelbullar (yummy, yummy Swedish cinnamon rolls), and berry picking aren’t bad substitutes. Now I am just waiting for the slowing approaching snow line to make its way down from the mountain tops... 

Next up, it's a science blog (part 2!).

Cheers,

Kenzie

Wednesday, September 2, 2015

It’s a Science Blog! Part One: The Arctic, permafrost, and carbon

What’s the first thing you think of when you hear the word, Arctic? My guesses are… cold, snow, polar bears, and Santa Claus. Was I far off? Probably not, because these are the things that used to come to my own mind when I pictured the top of the world. But after a couple summers spent above the Arctic circle in Siberia and now in Sweden, the first words I think of are: mosquitoes, sun, hot, water, life, and beautiful.  Pretty different, huh? My experiences have led me to split the term “Arctic” into these two separate trains of thought- the north pole and polar bears in one category and the mosquitoes and sun into another category some refer to as the sub-arctic.

The technical cut-off for the Arctic Circle is 66° 32" N (if these numbers don’t make any sense, just check out the map below). You can think of this line as the boundary where the sun is up all summer and completely below the horizon for part of the winter. I have experienced the former and await the latter.... Cherskiy, Russia, my previous Arctic hub, and my new home in Abisko, Sweden lie just above this line. Both are in the Arctic, but, just not quite at the North Pole.

A map outlining the boundaries of the Arctic Circle. Abisko is at the top of the light peach region, while Cherskiy sits in the yellow region nearest to Alaska.
Image from osu.edu


Abisko and Cherskiy undergo a “growing” season during the summer, unlike the North Pole part of the Arctic. During this time there are green trees, abundant plants, flowers, birds, lemmings, and even some large mammals like moose, bears, and reindeer. Though snowy patches may be scattered throughout the mountainsides, the landscape is mainly snow and ice free. At the surface that is.  

It's a bird. In some grass. In Siberia.
Photo Cred: John Schade


Abisko in mid August.


Both areas experience effects of the freezing cold winters, all year long. The remnants of winter can be found just below your feet in the form of permafrost- ground that is frozen all year round. Permafrost is prominent throughout the Arctic Circle in both large, continuous formations, as well as smaller scattered patches. Cherskiy resides on top of a continuous zone of permafrost (everywhere you walk there is permafrost beneath), while Abisko sits on top of a discontinuous zone (think- some permafrost surrounded by ground that isn’t completely frozen all year long).

A map showing the distribution of permafrost in the Northern Hemisphere. The dark purple represents zones of continuous permafrost while the lighter purple colors represent zones of discontinuous and sporadic permafrost.
Image from ipa,arcticportal.org

So… why all this talk about frozen ground? It’s just dirt, right? Wrong! Within the frozen Arctic soils are large quantities of really old plants that we call carbon and organic matter. And this old organic matter has been frozen in the permafrost for thousands of years. Till now. Increasing global temperatures are slowly thawing out the frozen ground, providing a food source to tiny organisms that eventually release the chewed on organic matter into the atmosphere as greenhouse gases. Just like the gases that are produced from the fossil fuels burned in your car, these gases act to trap heat in the atmosphere and increase global temperatures. In short, already warming temperatures thaw permafrost, which releases greenhouse gases into the atmosphere, which further increases global temperatures that thaw yet more permafrost and release more greenhouse gases- a cycle known as a positive feedback loop.  However, right now, the magnitude and exact details of the effects of this feedback loop on the world’s climate aren’t well known. But a lot of people are trying to figure that out, one small piece of the puzzle at a time. I am also trying to place a piece of the puzzle, but more on that later.

A simple diagram showing the positive feedback loop of warming temperatures and permafrost thaw.



On the next edition of “It’s a Science Blog!” look forward to methane, mooing, and mires. If you have had too much science for one blog (though I find this a hard feat to manage), you can rest easy knowing that I have a trip to Norway coming up that will most likely occupy some blog time with pretty lakes, old viking relics, and fjords. Fewf.