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Unusually warm march in the world – the early ice melt on Greenland

Last month was the second warmest marsmånaden of 139 years, according to the u.s. climate and vädermyndigheten NOAA's measurements.

The global average temperature low of 1.06 degrees above the average for the period since 1880. It has only happened three times that the surplus in march had become more than a degree (the previous times were 2016 and 2017). There was also a sharp deviation compared with the trend in recent months.

Just march 2016 was warmer. When the low average temperature of 1.24 degrees above the average. It happened during the recent strong so-called El Niño period, a regular tropical weather phenomenon that makes the earth warmer.

Measurements show that there is El Niño conditions this spring, but the forecasts suggest that the phenomenon this time will not be as strong as the last, and it is believed to wane during the autumn.

this would have been the world's average temperature for each month remained relatively even at around 0,85 degrees above the long-term average in the NOAA's measurements.

November was the ”coldest” novembermånaden since 2014, and February had an average temperature of 0,79 degrees above the normal value, which placed the month in fourth place among all februarimånader. Then the stack thus the month of march in the way.

satellite measurements in the troposphere gives a somewhat different picture. They show the same trend as markmätningarna, but the warming is there not quite as big as in based on the climate models. In one of the satellitserierna the temperature was in march of this year, slightly lower than februarivärdet.

it was parts of the northern continents, which was very much in march 2019. In Alaska, northwestern Canada, and northern and central Asia was the deviation from the normal is around four degrees.

In Australia was temperaturrekord for the month by 2.1 degrees above the normal value. In south Africa it was about 1.5 degrees warmer than normal.

In Spain, it was månadsrekord for the highest daytime temperature. However, it was not the record for daily average temperature, because the nights were a bit below normal.

the Weather will always vary, and there were also areas that were unusually cold during the month of march. This includes the interior parts of north America (northern USA and southern Canada), the Middle east, north Africa, South asia and southern south America.

But temperaturunderskotten in these areas was not as large as the surpluses in the warm areas. In the far north of the USA it was about three degrees colder than normal.

Sweden was march just which, strictly speaking, the whole of Europe milder than normal, even if there were not some all-time highs. Weakest it was in the Region of around three degrees above the normal temperature.

Iceberg in Kulusuk, east Greenland. Photo: John McConnico/AP

On Saturday it was reported at the same time that Greenland's mass of ice started to melt about a month earlier than normal.

was registered on april 7, according to researchers at columbia university in the united states that monitor the greenland ice, and it usually doesn't happen until the beginning of may. Temperatures 20 degrees above normal have briefly measured on the south-east Greenland.

the Explanation, says researcher Jennifer Francis at the institute Woods Hole, Massachusetts, to the Washington Post, is that the jet stream over the subtropical regions, has joined with the jet stream further north – between the temperate region and polar region, with hot, moist air from the area around Florida's been transported all the way up towards Greenland.

Such weather patterns are believed to become more common as the Arctic warms up – which takes place faster than in the world at large – and havsisytan shrinking.

in recent years, but on the contrary grown a bit. Last summer, which was extremely warm in parts of Europe, where, for example, unusually cool and snowy over Greenland.

On the other hand, Corresponds substantially during the years 2003-2011, and two or three cold and snowy years can not compensate for it, says a scientist at the Danish meteorological institute DMI.

the sea Ice in the Arctic, a commonly used climate indicator, continues to be less than normal. It reached its annual maximum on march 13 at a low, if not record, levels. Since the melting got underway, however, the partnership with axis communications have been less than previously measured this time of year.

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