File:Alaska’s Pavlof Volcano- NASA’s View from Space (8805096905).jpg
![File:Alaska’s Pavlof Volcano- NASA’s View from Space (8805096905).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/c/c6/Alaska%E2%80%99s_Pavlof_Volcano-_NASA%E2%80%99s_View_from_Space_%288805096905%29.jpg/600px-Alaska%E2%80%99s_Pavlof_Volcano-_NASA%E2%80%99s_View_from_Space_%288805096905%29.jpg?20160917210450)
Original file (4,500 × 4,500 pixels, file size: 1.29 MB, MIME type: image/jpeg)
Captions
Captions
Summary
[edit]DescriptionAlaska’s Pavlof Volcano- NASA’s View from Space (8805096905).jpg |
Visible and near infrared ASTER satellite image of Pavlof Volcano, acquired 1410 AKDT (2210 UTC) May 19, 2013. ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) is a high resolution imaging instrument that is flying on the Terra satellite. This image is 60 km (~37 miles) edge-to-edge. The max brightness temperature is near 900 degrees Celsius (1600 Fahrenheit) at the vent, and the lava flow is 4.8 km (3 miles) long. Also shown are ash or mud flow deposits to the southeast and northwest of the crater. Credit: Mike Ramsey and the University of Pittsburgh. -- The Pavlof volcano, located in the Alaska Peninsula National Wildlife Refuge has been producing steam and gas plumes since May 13. The volcano's plumes were captured by NASA satellite imagery and photographs taken by the astronauts aboard the International Space Station. The Pavlof volcano is located about 625 miles (1,000 kilometers) southwest of Anchorage, Alaska. Astronauts aboard the International Space Station captured stunning photos of Pavlof’s eruption on May 18, and the next day, the Moderate Resolution Imaging Spectroradiometer or MODIS instrument that flies aboard NASA’s Aqua and Terra satellites captured different views of the ash plume. The ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) instrument that also flies aboard NASA's Terra satellite, provided a look at the temperatures and lava flow from the eruption. The Terra MODIS image was taken on May 19 at 2:10 p.m. AKDT local time (6:10 p.m. EDT) and showed the area of heat from the volcano as well as the ash plume. The ash plume appeared as a dark brown color, blowing in a northerly direction for about 30 miles. At that time the ash cloud was about 20,000 feet above sea level. The ASTER instrument is a high resolution imaging instrument that is flying on the Terra satellite. ASTER captured a visible and near infrared image of Pavlof Volcano at 2:10 p.m. AKDT local time (6:10 p.m. EDT). The maximum brightness temperature in the ASTER image was near 900 degrees Celsius (1,600 Fahrenheit) at the volcano’s vent, and the lava flow appeared to be 4.8 kilometers (3 miles) long. On Thursday, May 23 at 10:39 a.m. AKDT local time (2:39 p.m. EDT), the Alaska Volcano Observatory (AVO) reported that the Pavlof continued erupting at low levels. At that time, the Pavlof Volcano is under a “Watch” and the current aviation color code is “Orange.” There are four levels of eruption: Green, Yellow, Orange and Red. Green is a non-eruptive state. Yellow means the volcano is exhibiting signs of elevated unrest. According to the AVO website, an Orange aviation code means that the volcano is exhibiting heightened or escalating unrest with increased potential of eruption, timeframe uncertain, or, the eruption is underway with no or minor volcanic-ash emissions. Red means and eruption is imminent or underway. Small discrete events, likely indicative of small explosions continue to be detected on seismic and pressure sensor networks over the past 24 hours. According to the AVO website, imagery and pilot reports from May 23 showed a very weak steam and gas plume with little to no ash issuing from the vent. Imagery from the ASTER instrument aboard NASA’s Terra satellite indicated heightened surface temperatures through cloud cover, which is a sign that the activity continues. So far, the Pavlof’s activity has been characterized by relatively low-energy lava fountaining and ash emission, but the AVO cautions that “more energetic explosions could occur without warning that could place ash clouds above 20,000 feet.” For future updates, visit the Alaska Volcano Observatory Daily Update web page: www.avo.alaska.edu/ or volcanoes.usgs.gov/ The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys. Text credit: the Alaska Volcano Observatory/ Rob Gutro, NASA Goddard Space Flight Cent |
Date | |
Source | Alaska’s Pavlof Volcano: NASA’s View from Space |
Author | NASA Goddard Space Flight Center from Greenbelt, MD, USA |
Licensing
[edit]![w:en:Creative Commons](https://upload.wikimedia.org/wikipedia/commons/thumb/7/79/CC_some_rights_reserved.svg/90px-CC_some_rights_reserved.svg.png)
![attribution](https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Cc-by_new_white.svg/24px-Cc-by_new_white.svg.png)
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
![]() |
This image was originally posted to Flickr by NASA Goddard Photo and Video at https://flickr.com/photos/24662369@N07/8805096905. It was reviewed on 17 September 2016 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
17 September 2016
Public domainPublic domainfalsefalse |
![]() |
This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ![]() |
![]() |
Warnings:
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 21:04, 17 September 2016 | ![]() | 4,500 × 4,500 (1.29 MB) | Vanished Account Byeznhpyxeuztibuo (talk | contribs) | Transferred from Flickr via Flickr2Commons |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Image title |
|
---|---|
Headline | Alaska’s Pavlof Volcano: NASA’s View from Space |
Width | 4,500 px |
Height | 4,500 px |
Bits per component |
|
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop CS5 Macintosh |
File change date and time | 13:10, 24 May 2013 |
Exif version | 2.21 |
Color space | Uncalibrated |
Unique ID of original document | 713E29CC8C823792A835017659489277 |
Date and time of digitizing | 08:55, 24 May 2013 |
Date metadata was last modified | 09:10, 24 May 2013 |
IIM version | 4 |