Wednesday, August 5, 2009

Our last day in Greenland!

Today was our last full day in Greenland so we took the day to pack up our gear for the Air National Guard flight tomorrow am. This afternoon we played tourist and drove up towards Lake Ferguson to get a birds eye view of Kangerlussuaq.

You can see the airport in the top of this photo. We are staying at KISS- the third long building from the right of the photo. Meltwater from the upvalley ice flows under the bridge (center bottom of photo). If you look closely you'll see a C-130 (plane) at the airport.


Same view, but including the meltwater river that flows past Kangerlussuaq to the ocean. Are you wondering why Kangerlussuaq is so flat? It was built on a delta (geology is everywhere!).


Things that make a glacial geologist happy: glacial erosional features! We found these on some beautiful exposed glacially polished bedrock this afternoon.


We celebrated our last night in Kangerlussuaq with pizza- this one is muskox and red pepper- not a flavor you can find in the US!


Our sole group photo (in front of the map of Greenland of course!). From left to right: Lenore Grenoble, Simone Whitecloud, Ross Virginia, Laura Levy, Meredith Kelly, Xiahong Feng. (And yes, that is a pool table in front of us- KISS has a great facility here!)
We leave Greenland for New York early tomorrow am and then drive back to New Hampshire in the afternoon. I'm sure we'll take lots of pics on the way home and post them soon.

back through time -- a visit to the ice margin


Our team has grown yet smaller: Ross left this morning for Nuuk to make arrangements for our Greenlandic cultural studies. The four remaining members of our team hiked across three ridges and forded two rivers to get to the ice margin. The journey to the ice brought us back into spring -- above is the first Dryas integrifolia we have seen in bloom.


I can't control my excitement about the ice margin. Meredith and Laura collected rock samples from two Little Ice Age moraines, Xiahong got water samples, including from a waterfall on the glacier, and I collected plants that were growing on the LIA moraine (a 150-600 year old moraine).


View from the Little Ice Age moraine of the ice margin to the right and bedrock and a distant lake to the left.


Retreating ice margin -- 'dirty' ice at the bottom indicates retreat.


Laura, Meredith and Xiahong were all grins after our hike back from the ice margin (visible in the background).


Beautiful metamorphic rock (gneiss)

Laura shares her excitement with the glacial polish.

Sunday, August 2, 2009

Camping near the ice margin

This weekend we packed up our gear and went to camp closer to the ice margin. This was partially to save us from the long drive up the valley every day and also to do a test run for camping with the whole Dartmouth IGERT group next summer. On our way to our campsite on Friday we stopped in Moraine Valley to collect some samples.


Drilling my first boulder!
Meredith is teaching me how to choose boulders to sample for Berylium-10 dating and how to sample them. Lots to learn! After taking complete field notes on the location of the boulder and its surroundings, we mark the latitude/longitude and elevation of the site, measure the dip/dip direction of the sampling area, and also measure the amount of shielding from the surrounding landscape (using a clinometer). Then we sample!


We arrived at our campsite on Friday evening and set up our camp. KISS outfitted us with these brand new (or like brand new) tents and a great kitchen set. It was a beautiful spot to camp and we had great camping weather.


Xiahong and Simone work on keying plants in the evening in our camp kitchen.


The tables are turned. Ross interviews/records Simone at camp one evening. He asked her "What do you like most about graduate school?"


On Saturday Meredith and I hiked up to the ice margin from camp. After hiking for an hour or so we came across this calving ice margin. We sat and ate our lunch (from where this photo was taken) and watched/heard chunks of ice fall. Pretty impressive!


Meredith atop the Little Ice Age moraine. This moraine is very young (500 yrs or less) and marks the last time the ice advanced.


The Little Ice Age moraine (right) and the edge of the ice sheet (left).


Meredith collecting plants for isotope analysis.


Simone, Ross and Meredith work together on a transect.

Thursday, July 30, 2009

day 4 -- caribou, fox, and tourists, oh my!


The high light of the day -- this gorgeous arctic fox trotted ahead of us on the road for a few hundred feet, then sauntered off toward the river. Our amazement left us fumbling for cameras, so the photo doesn't do the sighting much justice.


Today was the first day we split up. Meredith and Laura headed out near Eric Post's site to sample boulders along moraines, and Xiahong, Ross, and I went to Vulgaris Valley (see previous post) to do a vegetation survey and collect soil across the east-west running valley. Before we headed out, we managed to do a little cultural exploration -- a trip to the local grocery store! See below for photos of some of our exciting finds, but please note that this is the only store in town, so besides food there are most of the items you'd expect at a five-and-dime: clothing (Puma is in high fashion), shoes, kitchen appliances, fishing poles, glass seed beads for traditional regalia, linens, etc.


This garlic is great! Xiahong put some in our vegetable stir fry dinner. Keep in mind that Greenlandic and Danish are the primary languages. Supporting a vegetarian diet has proven difficult, veganism is impossible if relying on the cafeteria, so we splurged ($60 for 5 people on rice, veggies, and a bottle of soy sauce) to get some fresh vegetables into our diet. Most 'freshies' are imported from Denmark, altough potatoes are grown in southern Greenland, and the KISS staff grow their own personal stash of tomatoes in the windows of the field station.


The fresh vegetable section.


Muskox


Smoked seal meat


Seal blubber? Our dictionary lacks 'puisip orsua,' but puisi means seal in Greenlandic.



The subsistence hunting season starts tomorrow, and we fear this young male caribou won't last long. He was unafraid of the five of us on the shore of the lake, and equally unafraid of the two tour buses and large hiking group that came by as he meandered across the road.


This morning on our way out into the field, there was no blue ice. This large piece crumbled into the Watson river below while we were out and about.


For those of you who think we're in the middle of nowhere, check out the crowd we came upon. Greenland ecotourism is expanding quickly. Thursdays mark the arrival of the Fram, a tourist cruise ship that makes weekly cycles along the coast, and Kangerlussuaq, the only international airport in Greenland, is the point of embarcation. Four tourist buses were blocking the road as we headed out of the field. This is the more people than we've seen in 'Kanger,' a town of 490.

Tomorrow morning we head to the ice margin, where we will camp for two nights. We'll post about that leg of the journey when we return on Sunday. I'm still hoping to see an arctic hare! The subspecies found here stays white all year long and is known for it's fondness for standing on its hind feet to scan the landscape, then staying upright as it hops about!

Wednesday, July 29, 2009

Life at KISS


Since Simone described today's fieldwork, I'd thought I would write about our home away from home, KISS. The Kangerlussuaq International Science Support (KISS) is where we are stationed while here in Greenland. Above is a photo I took this evening of our building (red front) and our trusty pickup truck. Note my long shadow- I took this photo at about 8:30pm this evening!


The front of KISS.


Our almost-tidy room. We have a desk, some dressers and a fridge. After the first night here, we realized that there is a shade in our room to shut out the sunlight (Thanks Meredith!). Some fun facts about 7/29/09 in Kangerlussuaq: 24 hours of visible light, sunrise 3:41am sunset 11:13pm, length of the day: 19hrs 31 mins. Tomorrow will be 9 minutes shorter!


One of the cool things about KISS is that the halls are lined with scientific posters about Greenland (for those of us that like to geek out!).


Fun photos posted in the hallway of KISS.


day 3: sandflugtdalen, north vs. south slope sampling, and Lake Vulgaris


The day began at the KISS warehouse, home of our gear. The plan was to sample the large sand dune area (sandflugtdalen) to try and determine its origin and if there are layers of organic debris beneath the dunes. We botanized the area, took soil samples, and saw our first caribou!



A story in the sand. . . On the left are arctic hare tracks -- wide spacing indicates running. In the center are arctic fox tracks, also running in the same direction. On the right, fox tracks returning at a gentle trot, perhaps with a full belly?


Blueberries! We found Vaccinium uloginosum and Empertrum nigrum growing in the Sandflugtdalen (long sandy outwash from the glacier).


Fresh caribou scat, an exciting find. The caribou migrate to the coast as the summer draws to a close. The heavier precipitation of the coast provides greater quantities of lichens for the caribou.


Xiahong's big find on the way to Lake Vulgaris -- a young male muskox carcass. Only skin and bones remained, and arctic fox scat surrounded it. Kangerlussuaq is 150km inland.


Laura and Meredith core sediments in Lake Vulgaris (so named by us for the Hippurus vulgaris, aquatic vegetation growing along the lake margin). Notice the ice margin in the background.


Xiahong and Ross collecting soils on the dry, silty south facing slope near Lake Vulgaris. Although the day was sunny and clear and promised many more hours of light by which to work, we had to leave to field to make it to the 'kantine' by 6:30 for dinner.

Day 2- The ice margin!


Ice sheet with Little Ice Age moraines in foreground (gray).


Simone botanizing


Laura, Meredith, Ross, Xiahong and Simone


Air Virginia


Simone's great find!


View from the ice :)

Before I write about today’s excursion, I should back up and give an overview of the trip. Six of us from Dartmouth College are here in Kangerlussuaq, Greenland for ten days to check out the area for the IGERT seminar next summer. The group includes: Dr. Ross Virginia (Department of Environmental Science), Dr. Meredith Kelly (Department of Earth Science), Dr. Xiahong Feng (Department of Earth Science), Dr. Lenore Grenoble (Department of Russian), Simone Whitecloud (PhD student- Department of Ecology and Evolutionary Biology) and me- Laura Levy (PhD student- Department of Earth Science).
Today we had an amazing day. We took the day to orient ourselves to the area, with the plan of getting to the ice margin by the afternoon. We started by driving along the Sandflugtdalen, a large, sandy floodplain ~25 km in front of the ice margin. (I’m hoping we have time to explore that area one day while we’re here.) We drove about half way to the ice margin and then parked the car and explored by foot. We could see the ice sheet in the distance and were surrounded by older glacial deposits. While Simone was crouched down, “botanizing”, Meredith and I spent the time looking in the distance at all of the glacial features (“glacializing”?) We were surrounded by a sequence of moraines deposited ~6500 yr BP. As we looked towards the ice sheet, we could see the young, unvegetated moraines of the Little Ice Age. We could also see some amazing patterned ground and some waterfalls that the meltwater flowed over.

This afternoon Simone and I stepped foot on the Greenland Ice Sheet for the first time (Wahoo!) What an amazing experience! The road ended near the ice margin and we climbed down and walked on the ice. You could feel the cold air coming down from the ice sheet and there were numerous meltwater streams that we had to cross (see photo of Ross). You feel incredibly small when you realize how tiny you are relative to the huge ice sheet. We spent a few hours exploring the features of the ice sheet and looking for organic material that could have been overrun by the glacier and then transported to the surface (for radiocarbon dating). We also found a few snow mobiles that were abandoned on the ice.

Tomorrow we are heading in a similar direction to do some more work- I'm looking forward to it.

More tomorrow, Laura