Jökull

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Jökull - 01.01.2010, Qupperneq 217

Jökull - 01.01.2010, Qupperneq 217
Vorferð Jöklarannsóknafélags Íslands 2009 Þátttakendur í ferðinni voru 29. Af þeim hópi voru sjö manns aðeins með yfir Hvítasunnuhelgina sem þó varð í lengsta lagi, því vegna veðurblíðu frest- uðu helgarferðamenn heimför fram á þriðjudag. Far- artæki í ferðinni voru snjóbíll HSSR, Ford bíll JÖRFÍ, aðrir bílar og vélsleðar. Mesta athygli vakti minnsti jöklajeppi landsins, Suzuki bíll Ómars Ragnarsson- ar. Eftir að komið var upp fyrir krapann á Tungna- árjökli var minnsti jöklajeppinn í essinu sínu og sveif yfir hjarnið. Að vísu vildi hann hita sig, en Ómar sá við því. Fyrst með því að aka með húddið opið, en síðar með þvi að taka það hreinlega af. Ómar vinnur að gerð myndar um jökulinn og fáum við vonandi að sjá afraksturinn áður en langt um líður. Ómar Ragnarsson á Suzuki bílnum sínum. – Ómar Ragn- arsson in his Suzuki jeep. Ljósm./Photo. MTG. Vorferðir eru mikilvægur hlekkur í rannsóknum á Vatnajökli. Í ferðinni er einnig flutt eldsneyti og ann- að sem með þarf vegna hinna bráðnauðsynlegu húsa á Grímsfjalli. Þau er skjól fyrir ferðamenn og hýsa að auki sjálfvirk mælitæki sem fylgjast með virkustu eldstöð landsins. Landsvirkjun og Vegagerðin voru eins og löngum áður traustir bakhjarlar með því að leggja til farartæki og styrk fyrir eldsneyti. Þátttakendur: Ágúst Hálfdánsson, Ásdís Jónsdóttir, Björn Oddsson, Bryndís Arnardóttir, Eiríkur Lárus- son, Erik Sturkell, Eyjólfur Magnússon, Finnur Páls- son, Gerður Jensdóttir, Hanna Kaasalinen, Hann- es Haraldsson, Hlynur Skagfjörð Pálsson, Jóhanna Katrín Þórhallsdóttir, Magnús Tumi (fararstjóri), Marie Keiding, Sjöfn Sigsteinsdóttir (umsjón með matarbirgðum), Sólveig Kristjánsdóttir, Valgerður Jó- hannsdóttir, Þorsteinn Jónsson, Þóra Karlsdóttir. Fram á þriðjudag: Sveinbjörn Steinþórsson, Sigur- borg Helgadóttir, Jónas Elíasson, Snæbjörn Pálsson, Freyr Jónsson, Ómar Ragnarsson og Tryggvi Gunn- arsson. Frá miðvikudegi: Jósep Hólmjárn og Magnús Hall- grímsson. Farartæki: Snjóbíll HSSR, Rauður JÖRFÍ, bílar LV og JH, bíll Björns Oddssonar og allmargir vélsleðar. THE 2009 SPRING EXPEDITION The spring expedition took place May 29th– June 6th, 2009. The form was the same is in previous years with the huts at Grímsvötn being the main expedition base. The huts were reached on Saturday May 30th after a traverse from the west from Jökulheimar up Tungnaárjökull. There were 29 participants, whereof 20 stayed the whole week, five people stayed until Tuesday June 2nd, and two people arrived on June 3rd. A small group stayed in the hut at Kverkfjöll for a the first half of the expedition. The weather was generally good and fieldwork goals could be achieved. The water level of Grímsvötn was determined (1355 m a.s.l.), the winter balance in Grímsvötn (2570 mm), Bárðarbunga, Háabunga and a few other places mea- sured, an automatic weather station was set up at Bárðarbunga and Grímsfjall, GPS was used to locate stakes for ice flow measurements and KGPS profiles measured to map the surface of Grímsvötn. Geodetic surveying of fixed benchmarks on Vatnajökull inluded Jökulheimar, Hamarinn, Grímsfjall, Kverkfjöll, the nunatak Vöttur in Skeiðarárjökull and a new bench- mark in the northern part of Esjufjöll. Geothermal activity in Kverkfjöll and Grímsvötn was monitored and a new digital radio echo sounder used to map the bedrock on the upper part of Öræfajökull. Other work included a search for a missing GPS receiver that was located in the center of Eystri Skaftárketill but may have fallen into a crevasse during the subsidence of the cauldron in the jökulhlaup in the autumn of 2008. Maintenance work on the seismometer at Grímsvötn took place and the base station was stocked with fuel. JÖKULL No. 60 217
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