Ice Sheet Surface Mass Balance at Paakitsôq,
West Greenland, Derived from Future Scenario
Regional Climate Model Data
Horst Machguth, Andreas Ahlstrøm, GEUS, Copenhagen
1 Introduction
Greenland has a large potential for hydro-power production due to its abundant availability
of melt water. In the past GEUS has performed intensive glacio-hydrological investigations at
Paakitsôq, West Greenland
/media/ces/ces_geus_paakitsoq_full_report.pdf
The flow of lava was about 200 cubic meters per second in
September but the average flow rate for November is estimated to have been under 100 cubic meters
per second. The new lava field is the largest in Iceland since the Laki eruption (1783-1784) and it is
probably the third largest lava field on the planet over that period.
o Gas: For the first time in 150 years, gas pollution from
/media/jar/Factsheet_Bardarbunga_20141203.pdf
Earthquake swarm by Bárðarbunga volcano
16.8.2014
15:00 At about 3 a.m. this morning (16 August), an earthquake swarm began by Bárðarbunga volcano in NW Vatnajökull ice cap. Over 200 earthquakes have been recorded. The largest earthquakes have magnitudes of around 3
/about-imo/news/nr/2934
Their discharge has grown by a factor of ten within 24 hours.
The discharge of Geithellnaá was over 480 m3/s at noon 28th Dec., probably the greastest since 1971. The older maximum was 454 m3/s 31.10.1980.
The discharge of Fossá has now exceeded 220 m3/s. The last time it exceeded 200 m3/s was 29.12.2006 but the Fossá river maximum also occurred 31.10.1980, i.e. 395 m3/s.
River discharge
/about-imo/news/nr/3253
and transmits data to the IMO centre at least once a day.
The information mainly concerns water-flow, water-level and ground water, and in some cases other environmental factors are being measured. The network includes about 200 gauging stations. They are to a large extent operated for the Ministry of Industry and the National Energy Authority, or for some of the largest energy firms in the country
/hydrology/stations/
was observed close to the mouth of Önundarfjörður. The Cost Guard went on ice-survey the 6th of October. They observed 14 icebergs west and northwest of Westfjords, and most of them were approximately 200 nm from the cost. The iceberg closest to shore was located 77 nm westnorthwest of Bjarg. In addition to a detailed map of the icebergs location, the Cost Guard issued as well infrared (IR) images
/sea-ice/monthly/2009/nr/2332
). Undercatchment of
solid precipitation is dealt with by looking only at days when precipitation is
presumably liquid (summer or temperature criteria) or by considering the oc-
currence and non-occurrence of precipitation.
COMPARISON WITH OBSERVED PRECIPITATION
Figure 1 shows the relative error of the simulations, (mm5-obs) / obs, for the
summer months June, July and August (JJA). It can be seen
/media/ces/Paper-Olafur-Rognvaldsson_92.pdf
Comparison between data from
automatic weather stations and
manual observations
Ingibjörg Jóhannesdóttir
VÍ 2019-009
Report
Comparison between data from
automatic weather stations and
manual observations
VÍ 2019-009
ISSN 1670-8261
Report
+354 522 60 00
vedur@vedur.is
Icelandic Met Office
Bústaðavegur 7–9
IS 105 Reykjavík
Ingibjörg Jóhannesdóttir, Icelandic Met Office
Contents
1 Inngangur
/media/vedurstofan-utgafa-2019/VI_2019_009.pdf
The recognition of geophysical precursors
to volcanic activity is a primary challenge
in volcano monitoring. That challenge was
successfully met by scientists at the Icelandic
Meteorological Offi ce (IMO) before the
1 November 2004 eruption of Grímsvötn, a
subglacial volcano beneath the Vatnajökull
ice cap, Iceland (Figure 1).
Seismic and geodetic precursors were prop-
erly recognized
/media/jar/myndsafn/2005EO260001.pdf