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265 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.
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.
Publish Date: 11 December 2018
Switzerland has announced a major contribution to an international initiative to strengthen early warning systems in vulnerable low-income countries to support climate change adaptation, disaster risk reduction and sustainable development. The announcement of 9 million Swiss francs in new funding came at the United Nations climate change conference in Katowice, Poland (COP24).
Weather, climate and water impact on agriculture and fisheries, energy, transport, health, insurance, sports, tourism and many more socio-economic sectors. WMO promotes the application of meteorological, climatological, hydrological and oceanographic information in all human activities.
South-East Europe has experienced a significant number of severe meteorological and hydrological events in recent years. Heavy precipitation has caused floods and landslides. Droughts have increased the incidence of forest...
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...
Publish Date: 28 November 2018
Fiji is to press ahead with an early warning system for floods. Experts, staff of the Fiji Meteorological Service and Disaster Management Office met in Nadi, Fiji from 12 to 16 November 2018, to discuss the implementation of the Flash Flood Guidance System (FFGS). The meeting discussed and developed a work plan for the implementation of FijiFFGS, a name chosen to ensure ownership of the project, and show that its applications are specifically targeting the islands of Fiji.
Publish Date: 27 November 2018
An initiative to strengthen multi-hazard early warning systems in the Caribbean was launched on November 20 during the dry season Caribbean Climate Forum (CariCOF) meeting in Barbados. The Caribbean region is highly exposed to high-impact hydrometeorological hazards such as hurricanes and tropical storms, causing floods, landslides and storm surge. In 2017, Hurricane Irma caused massive destruction in Barbuda resulting in the subsequent full evacuation of the island while Hurricane Maria caused devastation Dominica. Barbados suffered from flooding as a result of Tropical Storm Kirk in...
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.