The northern hemisphere is overheating

Source: University of Alabama Huntsville
dashed lines area with an average temperature below normal;
integrity of the loop marked overheated territory. Deviations from the norm are expressed in degrees Celsius

U.S. scientists published a map of "overheating" of the Earth. Abnormally hot weather recorded in the northern latitudes — near the Arctic Circle.

American scientists from the University of Alabama in Huntsville (University of Alabama Huntsville) with the support of NASA and NOAA published a report on recent climate change. To prepare the report, the authors used results of a new method that allows us to "distinguish" ecological regions and measure the temperature with by satellite system.

Satellite monitoring

Satellites monitor climate change on the planet for 30 years. Scientists primarily use the system for orbital observations of the water area and ground layer of the atmosphere. The fact that the interpretation of orbital data about temperature changes on the ground is difficult. This prevents non-uniform "environmental cover." Thus, the microwave radiation from the equally heated desert and rainforest sensory systems are perceived in different ways, so "termokartinka" turns inaccurate. To avoid confusion, Dr. Roy Spencer (Dr. Roy Spencer) and Dr. John Christy (Dr. John Christy) from the University of Alabama in Huntsville shared microwave radiation, which comes from the land, the ten main types. In this way, scientists have "learned" to distinguish environmental satellite areas of wetlands to arid deserts. The described approach allows more accurately assess the temperature variations in specific regions.

Scientists note that satellite monitoring network covers 95% of the Earth. This is particularly important for the study of the "secluded" over the planet. For example, to obtain reliable information about the variation in temperature in Siberia, Australia, Northern Canada, Antarctica and most of Africa can not be any other way.

Satellite system records the surface temperature of the earth and air. Monthly data appear in the system, and NASA and NOAA provided researchers for scientific purposes.

Hot north

Climatologists estimate temperature maps produced since 1978, and came to the conclusion that the overheating of the Earth in 2010 could be a record. The previous record temperature jump satellites recorded in 1998. Indicators of the current year confidently
close to the red mark. True, they may not make it to the maximum. According to scientists, it will depend on the El Niño. Depending on the strength of this phenomenon on the planet or become hotter or colder.

The most part of the earth is overheated north. Over the past four months recorded temperature records in many different places, from Finland to southern Greenland.

Experts assert that the northern warming is not unusual. The fact is that in the Northern Hemisphere land areas more than in the South. Accordingly, the northern part of the Earth is experiencing a large industrial and commercial loads.

Spanish babe

Global ocean-atmospheric phenomenon El Niño (Spanish El Ninao — «Baby") appears and disappears. This kid is a noticeable effect on the weather, but scientists still do not understand how and why it occurs. Most likely, the phenomenon is associated with the movement of warm water Fillipinskogo Sea. Due to temperature fluctuations warm surface waters in the equatorial zone — in the east Pacific. Sometimes the temperature increases of 5-6 degrees above the average seasonal. In this hot fish the waters begin to die, and then marine animals leave in cooler water.

In 2009, powerful
El Niño greatly influenced the formation of cyclones and weakened the hurricane season in the U.S.. In 2010, El Niño began to fade. The process continues, which results in a decrease in temperature. However, along with the weakening of El Nino will increase the destructive power of hurricanes. As the employees of NOAA, a powerful El Nino "tears apart 'originated hurricanes.

Weather in Russia

According to American scientists, for the past six months, most notably "overheated" Republic of Sakha (Yakutia) and Chukotka. Muscovites have also felt the heat. The fact that the planetary climate change in large cities aggravated. City infrastructure and the pace of life help to store heat.

"Big cities fueled cars, subway and its population. Multistory buildings do not allow the city to be aired, and the asphalt is heated more than grass litter "- says leading researcher Margarita Chernovskaya Sciences Climatology.

However, Russian experts are skeptical about the results that have American counterparts, and do not try to find a particular culprit of global change. Scientists point to the fact that the nature of work is too complex cause-effect relationships, and mankind still has not gained much experience and knowledge.

"Satellite monitoring there not long ago, to draw conclusions and to try to find patterns," — said Chernovskaya.

Source: infox.ru.

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