in the Hvítá - Ölfusá catchment.
Discharge levels in the upper reach of the Hvítá catchment are decreasing rapidly. At 14:00 UTC today, floodwater discharge at Fremstaver was about 264 cubic metres per second, which is 50% lower than yesterday's observations. Water-level measurements at all other monitoring locations in the catchment show that discharge levels are decreasing progressively
/about-imo/news/nr/2662
50 nm NW of Barði which was drifting southwards. IMO informed, on its web site, that northerly winds would be prevailing the following days, which would most likely lead to further southward drift of the iceflake. The Icelandic Coast Guard did not go on ice-survey flight. The sea ice in the Greenland Strait moved eastwards in the month.
Easterly and northeasterly winds prevailed in the Greenland
/sea-ice/monthly/2009/nr/2334
was closest to land in the following locations: 56 nm from Látrabjarg, 38 nm from Barði, 38 nm from Kögur and 50 nm from Hornbjarg. No large floes or icebergs were seen at the margin of the ice, but some scattered ice was seen off the ice edge.
An observation from ship off Víkuráll was received 20th March, describing a strip of ice and large dispersed floes, implying the need of caution for passing ships
/sea-ice/monthly/2011/nr/2374
and web-based ash reports
from the public.
Eruption plume:
Height (a.s.l.): Mainly ~7 km / 24,000 ft.
Heading: West and later southwest.
Colour: Grey.
Tephra fallout: Ashfall reported from the Vestmanna Islands, Rangárþing east and in
Reykjavík.
Lightning: More than 50 lightning strikes were recorded on the ATDnet during the
last 24 hours. Between 4 and 5 this morning, 10 lightning were
/media/jar/Eyjafjallajokull_status_2010-05-14_IES_IMO.pdf
vhm145 Vestari-Jökulsá D+J+L 844 751 11.3 924 1971–2014
vhm167 Austari-Jökulsá D+J 553 916 28.8 1208 1985–2014
8
vhm59
vhm64
vhm66
vhm102
vhm116
vhm162
vhm233
vhm235
vhm238
vhm144
vhm145
vhm167
Figure 1. Location of river basins.
9
l
l
l
l
l
l
l
l
l
l l
l
l
l
l
l
l
l
ll
l
l
l
l
l
l
l
l
l
l
l
l
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ll
l
l
l
l l
0 100 200 300
50
15
0
25
0
35
0
Days since Sept. 1st
Q
(m
³/s
)
vhm59
S O N D J F M A M J
/media/vedurstofan/utgafa/skyrslur/2015/VI_2015_009.pdf
no direct glacial influence within its catchment. The glacial
cover varies greatly between the catchments, reaching 74% for Hálslón, the only one with a
glacial coverage above 50%. Three other catchments have glaciers occupying more than 10%
of their surface: Hágöngulón, Sultartangi, and Ufsarlón.
Table 1 – Properties of the eleven hydropower catchments. Note that the values are
derived from
/media/vedurstofan-utgafa-2022/VI_2022_006_extreme.pdf