Jörðin gildnar / Planet Earth getting fatter

Vatn sem bráðnar á Grænlandsjökli og Suðurheimskautinu leitar til miðbaugs og veldur því að jörðin verður gildari um miðbaug. Jarðskorpuhreyfingar taka árhundruð og þúsund, þannig að fyrst um sinn gildnar jörðin.

English version:
http://www.physorg.com/news/2011-07-earth-fatter.html

Earthquakes in Japan 2011-03-11

Many large earthquakes have rattle Japan this morning.

The list below is from USGS, showing earthquakes in the world having a magnitude greater than M 5.0. As can bee seen, Japan has experienced many, 16, such between 5:46 UTC and 7:42.

Associated is the risk, and realization of tsunami (up to 10 m high).

Some Antarctic ice is forming from bottom

From http://www.eurekalert.org/pub_releases/2011-03/leo-sai030111.php

Caption: Radar image shows the Gamburtsev Mountains (bottom) overlain by the ice sheet, which has been deformed by a bulge of refrozen ice (center).

Credit: Courtesy Bell et al., 2011

Kuldinn í BNA og Evrópu / The cold spell in USA and Europe

(Íslenska neðan við myndina)

The Atlantic Oscillation (AO) has caused cold temperature throughout most of Europe and USA. However, parts of Greenland for instance, have been unseasonably warm.

The image below shows the temperature anomaly for 3 – 10 Desember 2010, as compared to the average for the same dates in 2002 – 2009.

 
NASA Earth Observatory image created by Jesse Allen, using data provided courtesy of the NASA/GSFC Distributed Active Archive Center. Caption by Holli Riebeek.

Svokölluð AO sveifla, sem ræðast af þrýstingsmun milli háþrýstisvæði nær miðbaug og lágrþrýstisvæða yfir heimskautinu, er nú í þeim fasa (kallaður neikvæður, lítill þrýstimunur) að kalt er víða í Evrópu og BNA, en hlýtt t.d. á Grænlandi.

Myndin hér að ofan sýnir hitafrávik fyrir dagana 3 – 10. desember, 2010, í samanburði við meðaltal sömu daga árin 2002 – 2009.

Lítið orðið eftir af nýjum fiskveiðisvæðum / World running out of new places to fish: study

Frétt um það hvernig tekist hefur að viðhalda miklum fiskveiðum með því að stækka veiðisvæði, þannig að nú er nánast ekkert nýtt veiðisvæði eftir, fyrir utan svæði sem lítið gefa af sér.


The world's fishing industry is fast running out of new ocean fishing grounds to exploit as it depletes existing areas through unsustainable harvesting practices, according to a study published Thursday.

World running out of new places to fish: study: VANCOUVER (Reuters)
Report published in the online journal PLoS ONE. (here)

From the news summary:

• Expansion into unexploited fishing grounds allowed global catches to increase for decades, and disguised the fact that older areas were being depleted ...
• ... most fishing is done by large companies ... companies can ignore the decline of older stocks by simply moving to new areas.
• ... left only unproductive fishing areas on the high seas and the ice-covered waters of the Arctic and Antarctic for boats to move into.

Baráttudagur gegn loftslagsbreytingum 10.10.2010 / Global Work Party

Sjá nánar á loftslag.is og 350.org.
See the links above.

Improving ash and eruption detection with satellites

At the Engineering and Natural Sciences Research Symposium 2010 (R-VoN) 8 - 9 October I, in collaboration with Hróbjart, Inga and Hrund at the Icelandic Met Office, have a poster where we show the progress we have made in using satellite data to detect ash and eruptions/fires.

Inga and Hrund were summer-students at the IMO, great workers, through a project funded by the “Nýsköpunarsjóður Námsmanna” (Icelandic Centre for Research (RANNIS)).

Click the image for a larger size.

For more information, please contact Throstur.