values in near real-time
instead of being tied to data-dense, highly-sampled traditional seismograms. While having high
resolution data can be advantageous for identifying the sharp onset of individual earthquake
events, simplifying data is often more helpful when it comes to recognizing more long-term
trends, including volcanic tremor. A light data format is ideal for plotting long time
/media/vedurstofan-utgafa-2021/VI_2021_008.pdf
örugt að fara fyrir Horn í um 10 sml frá landi en það yrði
að hafa góðan útvörð.
Kl.1341, kalla TFB og spyr um ETA í RVK, ETA um kl 1440.
Kl 1305, AIS umferð fyrir N- Horn. Vegna bilunnar í WS 1 var megináhersla lögð á ískönnun í
þessu flugi.
Flugskýrsla TF-SIF
12. desember 2010
Flug nr. 117410.025
Ískönnun.
Meginröndin lá um eftirtalda staði.
1. 67°47.0N 023
/media/hafis/skyrslur_lhg/Isskyrsla_20101212.pdf
This explains why tephra layers from Hekla often have a light coloured base and a dark top, making them ideal tephra marker layers.For more information on the Hekla volcanic system, visit Catalogue of Icelandic volcanoes.Hekla 20th February 1991. Photo: Oddur Sigurðsson.IMO borehole strain station, near Hekla. Photo: Matthew J. Roberts
/volcanoes/about-volcanoes/hekla/hekla-eruptions/
changes with time during
the eruption. The opening phase has the highest SiO2 content, and while the
eruption is ongoing the SiO2 lowers. This explains why tephra layers from Hekla
often have a light coloured base and a dark top, making ideal markers of the
layers. For more
information on the Hekla volcanic system, visit Catalogue of Icelandic Volcanoes
/volcanoes/about-volcanoes/hekla/
and a river close to the site and a lake nearby. Elevation is 65 m above sea level, distance from the sea is 26 km and distance to towns of about 1000 inhabitants is about 15 km. This is an ideal inland background station at 64oN 21oW.
Since 1980, daily sampling has been done at Írafoss, monitoring sulphur concentrations and related substances. In fact, daily sampling was done at Rjúpnahæð
/pollution-and-radiation/pollution/
of earthquake
locations, and a continuous high level of seismicity are important factors.
The local seismic network of the Icelandic Meteorology Office, the SIL network, is in many respects
ideal for studying in situ preseismic changes before significant earthquakes. Since the beginning of its
operation in 1991, four earthquakes of magnitude ~6.0 and greater have occurred in the region, which
/media/norsem/norsem_ingi.pdf
Dashed lines encompass the V-shaped zone of tephra deposition. (c)
Oblique aerial view from west of the tephra plume at Grímsvötn on 2 November. Note the ashfall
from the plume. (Photo by M. J. Roberts.) (d) Weather radar image at 0400 UTC on 2 November.
The top portion shows its projection on an EW-vertical plane. The minimum detection height for
Grímsvötn is seen at 6 km, and the plume extends
/media/jar/myndsafn/2005EO260001.pdf
6University of Washington,
Seattle, WA 98195, USA. 7NOAA Geophysical Fluid
Dynamics Laboratory, Princeton, NJ 08540, USA.
*Author for correspondence. E-mail: cmilly@usgs.gov.
An uncertain future challenges water planners.
Published by AAAS
on July 12, 201
1
www.sciencemag.or
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1 FEBRUARY 2008 VOL 319 SCIENCE www.sciencemag.org574
POLICYFORUM
combined with opera-
tions
/media/loftslag/Milly_etal-2008-Stationarity-dead-Science.pdf
Roberts og Víðir Reynisson
Short summary
The background, goals and methodological framework of the project are introduced, in addition to highlighting the findings of subsequent chapters. The chapter concludes with a series of recommendations, based on the overall conclusions of the project. Chapter 1 is an ideal starting point for a quick overview of the project.
Chapter II
/hydrology/hazard-risk-assessments/glacial-outburst-floods/markarfljotsaurar-oraefajokull/
monitoring (“learning
by doing”
Source: Pahl-Wostl et al. (2009) in
The adaptive water resources
Management handbook
Ideal types of management
regimes: prediction & control
versus adaptive & integrated
• Change in governance regimes is conceptualized as social and
societal learning. It addresses processes of purposeful action and
of self-organization and emergence
• By re-evaluating goals
/media/loftslag/Henriksen-AM.pdf