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218 contents match your search.
Bulletin nº Vol 65 (1) - 2016
Publish Date: 21 March 2016
In pitch dark at 40 below, a research expedition set out to the icy Arctic Ocean in January 2015.Their goal: to better understand ongoing changes in the Arctic due to a shift from an older and thicker ice cover that would survive the summer melt to a younger and thinner one that, to a larger degree, melts away in the summer.
Research activities focusing on high-impact weather – from basic research in the academic community to operational contributions.
Start date1 June 1998
Sand and dust storms are common meteorological hazards in arid and semi-arid regions. They are usually caused by thunderstorms – or strong pressure gradients associated with cyclones – which increase wind speed over a wide area. These strong winds lift large amounts of sand and dust from bare, dry soils into the atmosphere, transporting them hundreds to thousands of kilometres away. Some 40% of aerosols in the troposphere (the lowest layer of Earth’s atmosphere) are dust particles from wind erosion.
Bulletin nº Vol 64 (1) - 2015
Theme: Environmental challenges
Publish Date: 2 March 2015
As atmospheric CO 2 continues to increase, more and more CO 2 enters the ocean, which reduces pH (pH is a measure of acidity, the lower the pH, the more acidic the liquid) in a process referred to as ocean acidification. Declines in surface ocean pH due to ocean acidification are already detectable and accelerating.
Bulletin nº Vol 64 (2) - 2015
Publish Date: 4 December 2015
By Kyra Bell-Pasht 1 and Dana Krechowicz 2 Over the course of human history, weather patterns have greatly influenced the growth of commerce and communities. But in a world experiencing...
Bulletin nº Vol 67 (2) - 2018
Publish Date: 19 November 2018
Weather is a key factor determining the success of the Winter Games. The next Winter Olympic Games will take place from 4 to 20 February 2022, in the municipality of Beijing and the neighbouring Hebei province, in China. The Paralympic Games will follow a month later, from 4 to 13 March. The scheduling of the outdoor events for the Games will rely on very short-term forecasting and nowcasting.
Publish Date: 6 November 2018
The second session of the Pan-Arctic Climate Outlook Forum (PARCOF-2) was held virtually on 30 October 2018 to review the climate conditions during the previous summer season, and to provide outlook for the forthcoming winter season.
Publish Date: 13 December 2016
A World Meteorological Organization expert committee has established a new world record significant wave height of 19 meters (62.3 feet) measured by a buoy in the North Atlantic. The wave was recorded by an automated buoy at 0600 UTC on 4 February 2013 in the North Atlantic ocean between Iceland and the United Kingdom (approximately 59° N, 11° W). It followed the passage of a very strong cold front, which produced winds of up to 43.8 knots (50.4 miles per hour) over the area.