Jökull


Jökull - 01.01.2004, Side 137

Jökull - 01.01.2004, Side 137
Vorferð Jöklarannsóknafélags Íslands 2004 Hvannadalshnúkur í morg- unsól þann 7. júní. Horft af Jökulbaki. – Hvannadals- hnúkur, the highest peak in Iceland. Ljósm./Photo. Magnús T. Guðmundsson. Vegna hlýinda síðastliðinn vetur og vor var sporð- ur Tungnaárjökuls orðinn snjólaus upp í 900–950 m hæð. Á heimleiðinni var ísinn orðinn æði ósléttur. Einn þátttakanda meiddist lítilsháttar þegar vélsleði valt í ísbröltinu. Sem betur fer slapp hann óbrotinn. Siv Friðleifsdóttir umhverfisráðherra náði að skoða Tungnaárjökul, Gjálp, Grímsvötn og Öræfa- jökul í þriggja daga heimsókn sinni. Hún reyndist hinn ötulasti ferðafélagi og mjög áhugasöm um hvað- eina sem viðkom jöklinum og félaginu. Á mánu- dagskvöldinu hélt Siv mótttöku fyrir þátttakendur á Grímsfjalli og gerði Jöklafélagsfólk veigunum drengi- leg skil. Þessi atburður mun einstæður því engin ráð- herramótttaka á Íslandi hefur verið haldin í meiri hæð yfir sjó. ÞátttakendurAllan tímann voru: Alexander Jarosch, Anna Líndal, Ágúst Hálfdansson, Björn Oddsson, Erik Sturkell, Finnur Pálsson, Guðrún Thorstensen, Hannes Har- aldsson, Hlíf Ólafsdóttir, Hrafnhildur Hannesdóttir, Kina Stewart, Leifur Jónsson, Magnús Tumi Guðmundsson, Magnús Hallgrímsson, Pétur Þorleifsson, Sjöfn Sigsteins- dóttir, Sólveig Kristjánsdóttir, Sveinbjörn Steinþórsson, Valgerður Jóhannsdóttir, Þorsteinn Jónsson, Þórdís Högna- dóttir. Hluta tímans voru: Gerður Steinþórsdóttir, Guðfinna Að- algeirsdóttir, Halldór Gíslason yngri, Ingibjörg Árnadótt- ir, Jósef Hólmjárn, Siv Friðleifsdóttir, Sóley Stefánsdóttir, Þóra Karlsdóttir. Summary The 52nd annual spring expedition of the Glacio- logical Society to Vatnajökull took place June 4–12 2004. The main tasks of the expedition were: to sur- vey the lake level of Grímsvötn; to measure mass balance at Grímsvötn, Bárðarbunga and Háabunga; GPS-geodetic surveying of fixed points at Grímsvötn and Hamarinn; study changes in geothermal activ- ity at Grímsvötn, including the crater from the 1998 eruption; map the surface of Grímsvötn and Gjálp; measure ice flow into Gjálp and Skaftárkatlar; ser- vice automatic weather-stations on the glacier; and re- measure the elevation of Hvannadalshnúkur, the high- est peak in Iceland. All these tasks were carried out successfully. The lake level of Grímsvötn was 1407 m above sea level, suggesting that a jökulhlaup should be expected at any time. It eventually took place at the end of October, triggering a volcanic eruption on November 1. The height of Hvannadalshnúkur turned out to be 2111 m a.s.l., 8 m lower than the official value of 2119 m determined by trigonometric level- ling in 1904. Further surveys are needed to establish a new elevation. A total of 29 people took part in the expedition. A special guest of the Society was Siv Friðleifsdóttir, Minister for the Environment. The group enjoyed excellent weather during this week on Vatnajökull. JÖKULL No. 54, 2004 137
Side 1
Side 2
Side 3
Side 4
Side 5
Side 6
Side 7
Side 8
Side 9
Side 10
Side 11
Side 12
Side 13
Side 14
Side 15
Side 16
Side 17
Side 18
Side 19
Side 20
Side 21
Side 22
Side 23
Side 24
Side 25
Side 26
Side 27
Side 28
Side 29
Side 30
Side 31
Side 32
Side 33
Side 34
Side 35
Side 36
Side 37
Side 38
Side 39
Side 40
Side 41
Side 42
Side 43
Side 44
Side 45
Side 46
Side 47
Side 48
Side 49
Side 50
Side 51
Side 52
Side 53
Side 54
Side 55
Side 56
Side 57
Side 58
Side 59
Side 60
Side 61
Side 62
Side 63
Side 64
Side 65
Side 66
Side 67
Side 68
Side 69
Side 70
Side 71
Side 72
Side 73
Side 74
Side 75
Side 76
Side 77
Side 78
Side 79
Side 80
Side 81
Side 82
Side 83
Side 84
Side 85
Side 86
Side 87
Side 88
Side 89
Side 90
Side 91
Side 92
Side 93
Side 94
Side 95
Side 96
Side 97
Side 98
Side 99
Side 100
Side 101
Side 102
Side 103
Side 104
Side 105
Side 106
Side 107
Side 108
Side 109
Side 110
Side 111
Side 112
Side 113
Side 114
Side 115
Side 116
Side 117
Side 118
Side 119
Side 120
Side 121
Side 122
Side 123
Side 124
Side 125
Side 126
Side 127
Side 128
Side 129
Side 130
Side 131
Side 132
Side 133
Side 134
Side 135
Side 136
Side 137
Side 138
Side 139
Side 140
Side 141
Side 142
Side 143
Side 144

x

Jökull

Direkte link

Hvis du vil linke til denne avis/magasin, skal du bruge disse links:

Link til denne avis/magasin: Jökull
https://timarit.is/publication/1155

Link til dette eksemplar:

Link til denne side:

Link til denne artikel:

Venligst ikke link direkte til billeder eller PDfs på Timarit.is, da sådanne webadresser kan ændres uden advarsel. Brug venligst de angivne webadresser for at linke til sitet.