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pictures to see them in a bigger version |
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Pictures from July 18th 2003
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The drill has just surfaced
with the structure of refrozen subglacial water hanging underneath. The
wonder is inspected by professor in glaciology Dorthe Dahl-Jensen, Copenhagen,
(middle), Henry Rufli, Bern, (right), and Sverrir Hilmarsson, Reykjavik
(left).
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for high-resolution version.
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The structure in a closer
view. The colour prooves that it is indeed subglacial water. The ice core
drilled just before hitting bedrock was ordinary clear ice.
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version.
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The team assembeled in the
trench for the celebration.
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version.
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Movie
clip of drill and structure.
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Added July 12th 2003
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Video clip from
the ice :
Drilling the last piece to make the NorthGRIP the longest ice core ever
drilled in Greenland.
DivX codex needed.
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Pictures from July 25th 2003
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It's a tough life up there in the bitterly
cold wilderness.
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Finally in July, the drilling went into
a good production mode. This is how we like it: A drill stuffed with freshly
drilled beatiful ice core.
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Sometimes, however, the ice core is well
stuck in the core barrel.
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... and it can even be necessary to heat
up the core barrel very gently in order to free the ice core.
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Fortunately, it does not happen very often,
but sometimes the ice core is in a very bad state, and it's a real puzzle
requireing a lot of patience.
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The deepest ice core in Greenland. The
length of the NorthGRIP ice core has now beaten both the GRIP and the GISP2
ice cores that were drilled last century in the Summit area. It is almost
possible to see the individual ice crystals in the core. At this depth the
crystals have sizes of up to 10 cm.
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Time for celebration! On a sunny summerday
it's a pleasure to enjoy barbeque in the 'Bedrock Cafe'. Again, you get
associations to the Schackleton expedition, when you see what those people
have to go through.
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In July, two associated projects were testing
new radar equipment on the ice. Kansas University brought 12 people on the
ice, and Alfred Wegener Institute, Bremerhaven, joined with a team of two
persons. Various ice radar systems were tested. Here a Kässbohrer is
transformed into a radar mobile.
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The Kansas group brought with them a rover
'Marvin' to pull the radar equipment around. Marvin is fully remote controlled,
and is mainly visiting Greenland for testing purposes; preparing for its
future work in Antarctica.
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One of the radar transmitters that were
tested in the field. Both radar teams were quite successful in estimating
the ice thickness at NorthGRIP before the drill hit bed mud.
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They are very rare, but sometimes you can
be lucky to see an ice bear around camp.
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Pictures from July 8th 2003
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8/7-03. The
new trail flags have just been delivered to the field office in Kangerlussuaq,
where they have been thoroughly testet ...
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Pictures from July 7th 2003
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18/6-03. One of the meltheads
risking its life at NorthGRIP this year.
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21/6-03. 'Cognac bomb' on Hans
Tausen drill.
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10/6-03. Some pieces of the core
are small and strongly damaged by ethanol and heating....
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13/6-03. Others are in a much
better shape.
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19/6-03. When a cable looks like
this, don't drill!
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20/6-03. The whole camp is on
the mission to change the cable.
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15/6-03. There is enough core
to start processing.
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18/6-03. A double pit with sunlight
through the wall is a beautyful sight.
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7/6-03. Drilling a shallowcore
is perfect when the weather is nice.
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7/6-03. One piece of the shallowcore
comes out of the drill.
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21/6-03. How to build an igloo.
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7/6-03. It is possible
to have a BBQ even though the temperatures are -10 degrees.
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Pictures from June 12th 2003 |
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19/5-03. The engines of the two
Kässbohrer track vehicles undergo a major service.
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20/5-03. The captain is watching
out for big birds.
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20/5-03. Here one arrives.
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20/5.03. It kneels and lift up
the front ski in order not to freeze to the surface.
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25/5-03. Poetic illumination of
camp and sign post an early Sunday morning.
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26/5-03. The tracks of the track
vehicles have an inspection.
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26/5-03. Then the vehicles are
in good shape for some serious skiway grooming.
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26/5-03. Before the ice core drilling
starts, a number of bore hole loggings are carried out in the undisturbed
bore hole. One of those is the temperature logging, where the 3 km long
temperature profile of the bore hole is obtained with a precision better
than one milli degree. This kind of measurements make special demands on
the equipment, and the loggers brought there own winch for the logging operations.
The heavy winch was placed in a weatherport on the surface.
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26/5-03. Geodetic measurement are
carried out in connection to the establishment of a new skiway, which
has a more favorable orientation with respect to the prevailing wind direction.
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28/5-03. Are they from Mars? No,
our French speaking colleagues are just wearing lint free suits in order
to avoid contamination in the search for micro-meteorites on the Inland
ice. At a distance from the 'polluting' camp, large snow samples are
collected for melting and filtering.
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28/5-03. Back in camp the collected
samples are inspected in microscope for possible findings of micro-meteorites.
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28/5. A beauty from the trenches.
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20/5-03. The garage as it appeared
on arrival. The more than 4 m high tent is almost covered by snow to
the roof top. Inside the tent we find the caterpillar and indispensable
spare parts for the vehicles. What to do?
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28/5-03. First you shovel, ...
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30/5-03. ... then you chain saw,
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1/6-03. ... and finally you pull
the garage up on a new snow hill. Next year access will be easier!
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30/5-03. Another option is moving
of tents on sledges. Here the NorthGRIP mobile home service group in action.
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31/5-03. Two o'clock in the morning
the night after Friday. What is happening?
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31/5-03. Solar eclipse in the middle
of the night!
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31/5-03. A light cloud cover appeared
and the sun could be observed with the naked eye.
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31/5-03. No, it is NOT the Moon.
To speak the truth, this image has been slightly manipulated.
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31/5-03. Cultural exchange Saturday
night.
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31/5-03. Saturday night shortly
before midnight.
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1/6-03. Another beauty from down
stairs.
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2/6-03. Activity in the drill trench.
The drill is sent down the bore hole for the first time this season.
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2/6-03. The result of the first
drilling attempt was a beautiful slush core. I.e. a core consisting of
ice chips, grease from the cable, and glycol slush, that has collected
at the bottom of the hole over the last two years.
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Pictures from May 21st 2003
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The put-in team walks towards
the main dome just after landing.
Picture taken 5/16 2003
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The main dome is partly
covered by snow. The small window to the left is the window to the
office on second floor.
Picture taken 5/16 2003
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The door is dug free.
Picture taken 5/16 2003
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16/5-03. The NorthGRIP pharmacy
is open!
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16/5-03. Inside this tent we find
the snow blower and the large track vehicles - the Kässbohrers. Unfortunately,
a 4 m high pile of drift snow covers the entrance, so everybody gets
a chance of warming up by practising some shovelling in the biding frost
wind.
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!7/5-03. First Saturday night.
Time for some serious cooking.
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18/5-03. The old drill trench
from 1996. The snow has been compressed and the height thus decreased.
The wooden beams that carry the ceiling broke due to the weight of
the overlying snow.
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18/5-03. The science trench is
still in quite good condition.
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19/5-03. A new access ramp to the
drill trench is made using a snow blower. The entrance to the trench
is approx. 5 meters below the surface.
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Pictures from May 17th 2003 |
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The put-in team on their way to NGRIP. |
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Finally, the take-off towards NGRIP
on May 16th. |
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On first class in a C130! |
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The put-in team is packing in Kangerlussuaq |
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13/5-03. Only specially trained
personel is allowed at the drilling station on the Inland ice. Here a
scene from the training camp in Kangerlussuaq shortly before departure.
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The view over Kangerlussuaq from "Ravnefjeldet". |
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13/5-03. The ice-margin at Kangerlussuaq
with some snow in .mid-May. |
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13/5-03. Same.
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13/5-03. Same.
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Musk-oxes close to Kangerlussuaq. |
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Pictures from April 2003 |
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The "W"-signal
as it looked in the spring sun in April 2003. During the past two
years snow has accumulated around and on all structures, and the shadow
effect makes them look like lights. |
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This picture gives a better
view on the single buildings. The red tent in front is a sleeping
tent. The black dome is the main building with the generator, office,
kitchen and dinning room, and the red tent behind is the workshop.
Significant amounts of snow lies around these buildings, but fortunately
not so much on top of them. It is worse for the white tent behind
and the garage tent to the most right. This is were the vehicles used
for moving snow are stored!
An extra stock of shovels will be sent to the ice this
year ...
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Sunset over the ice, when the mail plane was on its way home. |