File:Surface temperature canadalsta tmo 2016126.jpg
Surface_temperature_canadalsta_tmo_2016126.jpg (720 × 540 pixels, file size: 315 KB, MIME type: image/jpeg)
Captions
Captions
Summary
[edit]DescriptionSurface temperature canadalsta tmo 2016126.jpg |
English: In early May 2016, a destructive wildfire burned through Canada’s Fort McMurray in the Northern Alberta region. Windy, dry, and unseasonably hot conditions all set the stage for the fire. Winds gusted over 20 miles (32 kilometers) per hour, fanning the flames in an area where rainfall totals have been well below normal in 2016. Ground-based measurements showed that the temperature soared to 32 degrees Celsius (90 degrees Fahrenheit) on May 3 as the fire spread.
Satellite observations also detected the unusual heat. The map above shows land surface temperature from April 26 to May 3, 2016, compared to the 2000–2010 average for the same one-week period. Red areas were hotter than the long-term average; blue areas were below average. White pixels had normal temperatures, and gray pixels did not have enough data, most likely due to cloud cover. This temperature anomaly map is based on data from the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite. Observed by satellites uniformly around the world, land surface temperatures (LSTs) are not the same as air temperatures. Instead, they reflect the heating of the land surface by sunlight, and they can sometimes be significantly hotter or cooler than air temperatures. (To learn more about LSTs and air temperatures, read: Where is the Hottest Place on Earth?) The intense heat coincided with a weather pattern called an omega block. A large area of high pressure stalled the usual progression of storms from west to east. In Alberta, that left sinking, hot air parked over the region while the block was in place. But even before the omega block emerged, seasonal data show that winter in Alberta was warmer than usual. According to Robert Field, a Columbia University scientist based at NASA’s Goddard Institute for Space Studies, El Niño likely played a role in the warmth. The Virginia Hills fire in central Alberta (May 1998) burned under a similar El Niño phase. “That fire occurred under comparable fire danger conditions, part of which you can trace to El Niño,” Field said. Fewer people were affected by the Virginia Hills fire, however, because it was located away from a large population center. In contrast, authorities ordered the evacuation more than 80,000 people from Fort McMurray. |
Date | acquired April 26 - May 3, 2016 |
Source | Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite, http://earthobservatory.nasa.gov/IOTD/view.php?id=87992 |
Author | NASA |
Licensing
[edit]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:
|
Merkurtransit vom 9. Mai 2016|Category:El Niño
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 00:57, 7 May 2016 | ![]() | 720 × 540 (315 KB) | Oaktree b (talk | contribs) | User created page with UploadWizard |
You cannot overwrite this file.
File usage on Commons
The following page uses 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.
Unique ID of original document | xmp.did:d5030f33-b791-41a4-889f-c0c687fe3266 |
---|---|
Software used | Adobe Photoshop CC 2015 (Macintosh) |
IIM version | 2 |