that the icesheet has now sunk over 27 meters. This morning, between 10:15 and 12:20, hydrologists from IMO measured a discharge rate of about 1600 m3/s in Gígjukvísl. The electrical conductivity, which is an indicator of the amount of geothermal meltwater in the river, has also been increasing over the last couple of days and it was over 464 µS/cm today. Higher than normal gas concentrations have
/about-imo/news/icesheet-in-grimsvotn-subsiding
the past 2 decades. Summer ablation was found to be less than 50% of the 1995 - 2014 average.
Fig. 3 (enlarge). Ablation stake (white) near the northern margin of Hofsjökull on October 9th 2015 at a height of 980 m. A yellow indicator gives the height of the aluminium stake, whereas the red bar shows the typical stake height during years with negative mass balance. Photo: Bergur Einarsson
/about-imo/news/nr/3229
increased by 1 metre during 20 hours (from 14 PM Oct. 31 to 10 AM Nov. 1). Since the floodwaters dig into the river bed, spread out and frequently change their course it must be kept in mind that the water level measured at a fixed location can only be viewed as an indicator of discharge. More extensive and repeated measurements at several places are therefore needed during jökulhlaups to determine
/hydrology/articles/nr/2040
increased by 1 metre during 20 hours (from 14 PM Oct. 31 to 10 AM Nov. 1). Since the floodwaters dig into the river bed, spread out and frequently change their course it must be kept in mind that the water level measured at a fixed location can only be viewed as an indicator of discharge. More extensive and repeated measurements at several places are therefore needed during jökulhlaups to determine
/earthquakes-and-volcanism/articles/nr/2040
assessment
framework that comprises 198 National Indicators (NI), including one on adaptation (DEFRA
2009). Progress under this framework has implications for national funding attributed to
individual local authorities, and thus constitutes an economic incentive. Out of 450
authorities, roughly 100 have selected the adaptation indicator as one of the 35 indicators on
which they are assessed
/media/loftslag/Keskitalo_et_al-MLG_and_adaptation_FINAL.pdf
in the Markarfljót outwash plain and in the Öræfi district. An inventory of the populations exposed to floods is made for overnight conditions using daily overnight estimates weighted with road traffic data as an indicator. The main objective of the study is to provide the authorities with a realistic estimate, at different periods of the year and at particular locations within the two studied areas
/hydrology/hazard-risk-assessments/glacial-outburst-floods/markarfljotsaurar-oraefajokull/
meeting in Reykjavík in November 2008 it was decided that
the next NOMEK courses should be arranged by and in:
Norway 2010
Finland 2011
It is the hope that EUMETSAT will continue to sponsor the course. Over this
year’s work no indicator has been received that they will not.
The chairmanship of the NOMEK Planning Group has now been handed over
to Mrs Vibeke Kristensen, Met.no, Norway.
I would
/media/vedurstofan/utgafa/skyrslur/2009/NOMEK09_Report.pdf
/longitude box extending from 10–30W and
60–70N) revealed that the model ensemble average exhibited considerable warming
in the last decades of the 20th century and into the 21st,
but the warming rate was half of the warming rate that actually occurred. If
the CMIP5 ensemble average warming is used as an indicator of the forced
(anthropogenic) warming trend, then about half of the recent observed
/climatology/iceland/climate-report
/longitude box extending from 10–30W and
60–70N) revealed that the model ensemble average exhibited considerable warming
in the last decades of the 20th century and into the 21st,
but the warming rate was half of the warming rate that actually occurred. If
the CMIP5 ensemble average warming is used as an indicator of the forced
(anthropogenic) warming trend, then about half of the recent observed
/climatology/iceland/climate-report/
), latitude (decimal °N), longitude (decimal °W), location uncertainty (km), and a
quality indicator (G=Good).
Three tables are provided showing mean and median locations of lightning for 1, 6 and 24
hour intervals during the past week (Meðalstaðsetningar). For each time interval (Tímabil)
the following data are presented: Number of lightning in Iceland (Fjöldi eldinga), mean
location, latitude °N
/media/vedurstofan/utgafa/skyrslur/2013/VI_2013_006.pdf