Sunday, May 19, 2013

Pavlof volcanic plume in webcam and incandescence at night, May 18 - 19 2013

FAA webcam shows plume late last night, local time, with incandescence overnight.


21:18 AKDT, May 18 2013 (05:18 UTC, May 19, 2013)


23:48 AKDT, May 18 2013 (07:48 UTC, May 19, 2013)

Saturday, May 18, 2013

ALI v Hyperion for Pavlof Volcano, May 16 2013

I've examined the ALI data versus the Hyperion data. ALI and Hyperion both have 30 m spatial resolution. Ali has wider swath and also wider spectral bands and does not provide continuous coverage across the full spectrum from 0.4 - 2.5 µm.


ALI RGB, Band 7, 5 and 5p (2.215, 1.65, 1.25 μm)


Zoomed in


Hyperion data , RGB from Bands 161, 129 and 094.


Zoomed in.

Re-suspended ash seen from Katmai Volcano region, first detected 07:24 UTC May 18 2013


07:24 UTC BTD map in Google Earth, polygon to highlight the weak ash signal from the re-suspended ash.


12:57 UTC BTD map in Google Earth, polygon to highlight the weak ash signal from the re-suspended ash.


16:02 UTC BTD map in Google Earth, polygon to highlight the weak ash signal from the re-suspended ash.

Pavlof Volcano continues to emit plume, May 18, 2013


MIR data from 16:02 UTC in Google Earth, below is original image


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BTD data from 07:24 UTC in Google Earth, below is original image









Friday, May 17, 2013

Volcano Remote sensing at UAF-GI transitioning to V-ADAPT




On behalf of the 54 students, faculty and staff that have worked in volcano remote sensing at UAF/GI over the last 25 years as part of AVO, Peter and I would like to thank all of you and the USGS for your support, guidance and funding during that time.  However, due to changing funding priorities as a result of budget cuts within the USGS, there will no longer be public support for volcano remote sensing at UAF/GI as part of the Alaska Volcano Observatory.

As a result, at the end of the cooperative agreement and public funding that supported remote sensing (May 17th), we have password protected the access to all of the volcano remote sensing webtools (at avo.images.alaska.edu/tools/) and the Puff volcanic ash tracking model (at puff.images.alaska.edu).
The tools will be accessible to customers and data providers of V-ADAPT (Volcanic-Ash Detection, 
Avoidance and Preparedness for Transportation), a project and startup company in partnership with UAF/GI.  See the V-ADAPT website and storefront for more information:

Website www.v-adapt.images.alaska.edu

Storefront www.v-adapt.com

Email: vadapts@gmail.com

ALI data combined views for all channels, RGB, Pavlof Volcano, May 16, 2013


RGB combinations of the different ALI for May 16, 2013. Note as one goes to longer wavelengths and closer to the peak wavelength on the Planck curve for hot targets, the flow becomes more enhanced. This can be seen in the zoomed in image for the Band 7,5 and 5p with wavelengths at 2.215, 1.65 and 1.25 μm.

Thanks to NASA for providing this data.

Pavlof Volcano as seen in SWIR ALI data, May 16 2013


SWIR RGB view in Google Earth, looking to the SE. Flow feature to the NW.


Satellite data zoomed into Pavlof. Plume to the ESE.