:55 (24 Dec.) and at 11:02 this morning (25 Dec.). Four more were over 4 in magnitude. In total, around 50 earthquakes were detected in Bárðarbunga. In the dyke intrusion 9 quakes were detected, all under M2.
Now 81 km²
An overview map from Christmas Eve. The new lava is now 81 km² (80,6 km² + 0,4 km²) in size. Enlarge. Institute of Earth Sciences.
24 December 2014 12:00 - from
/earthquakes-and-volcanism/articles/nr/3055
:55 (24 Dec.) and at 11:02 this morning (25 Dec.). Four more were over 4 in magnitude. In total, around 50 earthquakes were detected in Bárðarbunga. In the dyke intrusion 9 quakes were detected, all under M2.
Now 81 km²
An overview map from Christmas Eve. The new lava is now 81 km² (80,6 km² + 0,4 km²) in size. Enlarge. Institute of Earth Sciences.
24 December 2014 12:00 - from
/earthquakes-and-volcanism/articles/nr/3055/
earthquakes in Bárðarbunga (northwestern Vatnajökull) since noon yesterday
were 4.5 in magnitude at 18:55 (24 Dec.) and at 11:02 this morning (25 Dec.). Four more
were over 4 in magnitude. In total, around 50 earthquakes were detected in Bárðarbunga. In
the dyke intrusion 9 quakes were detected, all under M2.
Now 81 km²
An overview map from Christmas Eve. The new lava is now 81 km² (80,6 km
/media/jar/Bardarbunga-2014_December-events.pdf
These approximations are simple and give satisfactory results
for total runoff, but for many other parameters such as snow storage, maximum winter snow
and thereby total amount of spring melt, these approximations are not acceptable in areas
with considerable groundwater flow. As shown in Figure 2 the annual number of days per
year with snow covered ground are suspiciously low in the area
/media/ces/2010_017.pdf
to
an average time between jökulhlaups from the western cauldron of 24 months.
The cumulative volume of outflow from the western cauldron is shown, as a func-
tion of time, on Figure 3.4. In total, approximately 2325 Gl of water have been released
from the western cauldron since the first recorded jökulhlaup in 1968, giving an aver-
age rate of water accumulation in the subglacial lake of 5 Gl per/media/vedurstofan/utgafa/skyrslur/2009/VI_2009_006_tt.pdf
- 15,000 automatic events occur per year in Iceland:
A new table (enlarge, pdf 30 Kb) with the approximate number of events and the total number of events over M3 in magnitude since the onset of the seismic events in northwestern Vatnajökull. The period is 16.08.2014 - 17.02.2015. For comparison an older table is available.
17 February 2015 11:00 - from the Scientific Advisory Board
Notes from
/earthquakes-and-volcanism/articles/nr/3087
- 15,000 automatic events occur per year in Iceland:
A new table (enlarge, pdf 30 Kb) with the approximate number of events and the total number of events over M3 in magnitude since the onset of the seismic events in northwestern Vatnajökull. The period is 16.08.2014 - 17.02.2015. For comparison an older table is available.
17 February 2015 11:00 - from the Scientific Advisory Board
Notes from
/earthquakes-and-volcanism/articles/nr/3087/
of events during these six months, and keep in mind that in
ordinary circumstances only about 10,000 - 15,000 automatic events occur per year in
Iceland:
A new table (enlarge, pdf 30 Kb) with the approximate number of events and the total number
of events over M3 in magnitude since the onset of the seismic events in northwestern
Vatnajökull. The period is 16.08.2014 - 17.02.2015. For comparison
/media/jar/Bardarbunga-2015_February_events.pdf
biomass at EBT and FF in Finland
Management
regimes
Current c mate C mate c ange
EBT FF Total EBT FF Total
TWh yr-1 % TWh yr-1 %
M0 (0%) 8.7 40.4 49.1 -- 17.8 67.5 85.4 --
M1 (+15%) 8.7 43.9 52.6 7 18.1 72.8 90.9 7
M2 (+30%) 8.4 46.4 54.8 12 18.4 76.4 94.8 11
M3 (+45%) 8.1 48.7 56.8 16 19.0 80.3 99.3 16
a
l
a
r
e
a
(
m
2
h
a
-
1
)
Basal area just
before thinning
Remaining basal
area threshold
/media/ces/Alam_Ashraful_CES_2010.pdf
focussing on the maintenance of existing monitoring systems and on the use of data in modelling studies related to Arctic hydrology.
The diagram indicates the contribution from different regions and rivers to mean annual inflow of freshwater to the Arctic Ocean (total: 4270 km3 per year). A significant part of the inflow is unmonitored because no hydrological stations are operated in large areas
/about-imo/news/nr/2447