Vulkanausbruch in Alaska- Mount Augustine

[Anja_Magglingen]

... stimmt!

ALASKA VOLCANO OBSERVATORY
INFORMATION RELEASE
Monday, January 30, 2006 4:55 PM AKST (155 UTC)

AUGUSTINE VOLCANO (CAVW#1103-01-)
59.3633°N 153.4333°W, Summit Elevation 4134 ft (1260 m)
Current Level of Concern Color Code: RED

Augustine volcano has been in a state of continuous eruption since 14:30 AKST (2330 UTC) January 28. Over the past several hours, no large seismic pulses have been detected, such as those that occurred three times last night and correlated with ash rising 25,000 ft or more above sea level. Visual observations from an overflight today, as well as satellite data, show that an ash-bearing plume continues to emanate from the volcano, reaching an altitude of approximately 16,000 ft above sea level and extending roughly 90 miles (150 km) north. For up-to-date Ashfall Advisories and wind trajectories, please refer to the National Weather Service website: http://pafc.arh.noaa.gov/augustine.php.

Thermal anomalies (measured by satellite-based instruments) persist, both at the summit of Augustine and on the northern flank, consistent with continuing eruption and hot pyroclastic flow deposits on the volcano. Direct observation of the island during today's overflight was mostly obscured by ash and clouds.

Nur kann man leider eben sehr wenig sehen (siehe oben)... ist ein dunkelgrau in dunkelgrau... SCHADE!

Wie wirkt sich eigentlich all die Asche auf´s Klima/Wetter aus?

Lg Anja

[crosley]

Hi Anja

Vulkane können selbstverständlich das Klima beinflussen. Aber ein einzelner "normaler" Ausbruch wird da nichts verändern. Bin mir nicht einmal sicher ob es eine Art Formel/Tabelle gibt woraus mann errechnen könnte, ab welcher Emisionsmenge das Klima in welchem ausmasse beinflussen würde? Es käme dann ja auch noch darauf an, wie man die Klima veränderung im Zusammenhang mit Vulkanausbrüchen definiert: Kurzfristig durch die hohen menge an Asche (verdunkelung der Sonne), oder langfristig durch den Co2 ausstoss?
Verstehe da leider auch zu wenig dafon, aber hier wenigstens ein Linkwo das Thema angesprochen wird.


Grüsse Crosley

[Anja_Magglingen]

Danke Crosley

Noch einige Bilder:

http://www.avo.alaska.edu/images/dbimag ... 1_1_13.jpg
January 31, 2006 at 22:50:44 AST (Feb 1 UTC) Hot ASTER nighttime satellite thermal infrared (TIR) pixels overlain onto shaded topography. The hot pixels define the area of new pyroclastic flow deposits on the north flank of the volcano.

Picture Date: January 31, 2006 22:50:44
Image Creator: Wessels, Rick

Image produced by AVO/USGS. ASTER data courtesy of NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team
Please cite the photographer and the Alaska Volcano Observatory / U.S. Geological Survey when using this image.




http://www.avo.alaska.edu/images/dbimag ... 8_1_13.jpg
January 31, 2006 at 22:50:44 AST (Feb. 1, 2006 UTC)night time ASTER thermal infrared (TIR) data showing hot pyroclastic flow deposits on north flank of Augustine Volcano. The image also shows a broad ash and SO2 plume as an orange-red feature ENE of the volcano.

Picture Date: January 31, 2006 22:50:44
Image Creator: Wessels, Rick

Image produced by AVO/USGS. ASTER data courtesy of NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team
Please cite the photographer and the Alaska Volcano Observatory / U.S. Geological Survey when using this image.




http://www.avo.alaska.edu/images/dbimag ... op250m.jpg
MODIS satellite image showing the ash and steam plume produced by the eruption of Augustine Volcano. This image was collected at the approximately the same time as an AVO overflight, and shows the volcanic cloud moving towards the northeast at an estimated height of 16,000 ft above sea level. Airborne observations show that a considerable amount of ash was being produced during this time period from small explosions and associated pyroclastic flows.

Picture Date: January 30, 2006 12:30:00
Image Creator: Schneider, Dave

Image courtesy of MODIS Rapid Response Project at NASA/GSFC.

mehr davon unter: http://www.avo.alaska.edu/volcanoes/vol ... =Augustine

[Peter,Walchwil ZG]

Hier ein Artikel im Spiegel über den Vulkan und seine möglichen Auswirkungen:

http://www.spiegel.de/wissenschaft/erde ... 07,00.html

[Anja_Magglingen]

http://www.sturmforum.ch/forum_uploads/ ... 082140.jpg
Augustine summit above the clouds. A thin gas plume extends toward the north from the summit. The new lava flow steams on top of the summit.

Picture Date: February 16, 2006 15:30:00
Image Creator: Wessels, Rick


http://www.sturmforum.ch/forum_uploads/ ... 083146.jpg
Summit of Augustine volcano showing new lava dome and deposits. View from southeast.

Picture Date: February 16, 2006 14:30:00
Image Creator: McGimsey, Game

Liebe Grüsse

Anja

[Anja_Magglingen]

Da ist wohl ein Vulkan etwas am Einschlafen.... aber das Bild ist trotzdem schön:

http://www.sturmforum.ch/forum_uploads/ ... 082829.jpg

Vielleicht meldet er sich ja plötzlich wieder. Warten wir´s ab.

Liebe Grüsse

[Anja_Magglingen]

Dieses Bild möchte ich Euch nicht vorenthalten:

http://www.sturmforum.ch/forum_uploads/ ... 090710.2.0
Summit of Augustine volcano and east flank.
Picture Date: February 24, 2006 13:00:00

[Anja_Magglingen]

Wieder einmal ein schönes Bild:

http://www.sturmforum.ch/forum_uploads/ ... 201316.jpg

View of the Augustine lava dome and flow from the time-lapse camera at Burr Point, about 5 km (3 mi) north of the summit.

Picture Date: March 06, 2006 19:47:00
Image Creator: Schneider, Dave

Image courtesy of AVO/USGS.
Please cite the photographer and the Alaska Volcano Observatory / U.S. Geological Survey when using this image.

[Stauffi]

also, die Nachtaufnahme finde ich absolute Spitze - dieses Farbenspiel ist so schön, dass man die eigentliche Gefahr glatt vergisst.

[Alfred]

Zum Üben (Aschenauswurf): http://www.arl.noaa.gov/ready/ash.html

Alfred
[hr]