Heat intensifies Siberian wildfires

Aug 07, 2013
The map above shows land surface temperature anomalies for July 20, 2013. Rather than depicting absolute temperatures, the map shows how much the temperatures for that week differed from the long-term average for the area. Credit: Jeff Schmaltz, LANCE/EOSDIS MODIS Rapid Response Team at NASA GSFC

The summer of 2012 was the most severe wildfire season Russia had faced in a decade. 2013 might be headed in the same direction after an unusual heat wave brought a surge of fire activity in northern Siberia in July.

A persistent high-pressure weather pattern in the Russian Arctic—a blocking high—contributed to the heat wave, which saw temperatures reach 32° Celsius (90° Fahrenheit) in the northern city of Norilsk. For comparison, daily July highs in Norilsk average 16° Celsius (61° Fahrenheit). Blocking highs are so named because they block the jet stream from moving rain-bearing weather systems along their normal west-to-east path; this leads to "stuck" with long periods of stable air and exceptional heat.

The map above shows anomalies for July 20

Explore further: Study on global carbon cycle may require reappraisal of climate events in Earth's history

add to favorites email to friend print save as pdf

Related Stories

New York heat wave kills four

Jul 23, 2013

The heat wave that hit New York last week killed four elderly people, the office of the city's chief medical examiner (OCME)said Monday.

Recommended for you

NASA HS3 instrument views two dimensions of clouds

3 hours ago

NASA's Cloud Physics Lidar (CPL) instrument, flying aboard an unmanned Global Hawk aircraft in this summer's Hurricane and Severe Storm Sentinel, or HS3, mission, is studying the changing profile of the atmosphere ...

Research drones launched into Hurricane Edouard

5 hours ago

U.S. government scientists are launching winged drones into Hurricane Edouard, hoping to collect data that could help forecasters understand what makes some storms strengthen into monsters while others fade away.

User comments : 0