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18 contents match your search.
Theme: Environmental challenges
Publish Date: 2 March 2015
The Montreal Protocol on Substances that Deplete the Ozone Layer, signed in 1987, has been successful in that the amount of chlorofluorocarbons is now slowly diminishing. A common misunderstanding, however, is the belief that the ozone problem has been solved and the ozone layer is back to its original state.
Publish Date: 3 March 2015
Weather prediction has achieved immense progress, driven by research and increasingly sophisticated telecommunication, information technology and observational infrastructure. Predictive skill now extends in some cases beyond 10 days, with an increasing capability to give early warning of severe weather events many days ahead.
Bulletin nº Vol 63 (2) - 2014
Publish Date: 3 November 2014
The science community is concerned: many established researchers plan to retire in the coming decade and there is a dearth of early and mid-career researchers ready to take their place and contribute in a meaningful way. Unless young scientists are encouraged, trained and mentored in various scientific fields knowledge gaps will occur.
Publish Date: 25 May 2017
Forecasters at NOAA’s Climate Prediction Center say the Atlantic could see another above-normal hurricane season this year. For the upcoming Atlantic hurricane season, which runs from June 1 through November 30, forecasters predict a 45 percent chance of an above-normal season, a 35 percent chance of a near-normal season, and only a 20 percent chance of a below-normal season.
Publish Date: 1 September 2017
The WMO Expert Team on Climate Impacts on Tropical Cyclones has issued a statement on possible linkages between Hurricane Harvey and anthropogenic climate change. The Expert Team consists of renowned international scientists and is a working group of the WMO World Weather Research Programme.
Publish Date: 12 September 2017
Hurricane Irma caused devastation in low-lying Caribbean islands, made landfall in Cuba as the first category 5 hurricane since 1924 and made landfall again in Florida, USA, on 10 September as a very dangerous category 4 hurricane on the Saffir-Simpson windscale. The US National Weather Service and US National Hurricane Center warned of life-threatening storm surge, floods, tropical storm force winds, torrential rain and tornadoes as large parts of Florida were paralysed by the storm.
Publish Date: 28 August 2017
Unprecedented rainfall totals from tropical cyclone Harvey caused catastrophic flooding in southeastern Texas and southeastern Louisiana, leaving dozens of casualties, displacing thousands and causing huge economic disruption. Warnings and advisories from the US National Hurricane Center and US National Weather Service were pivotal in the disaster mobilization effort. Large parts of southeast Texas saw more than 30-35 inches (762-889 mm) with isolated amounts up to 42 inches (1067 mm) of rain since 24 August. Cedar Bayou in Texas received 51.88 inches of rain (1.3 meters), according to the U....
Publish Date: 17 October 2017
Ophelia strengthened to a category 3 at its peak on 14 October. It was the farthest east (26.6°W) an Atlantic major hurricane has existed on record and the furthest north a major hurricane has existed this late in the calendar year since 1939.
Publish Date: 1 December 2017
Investments in forecasting and research yield more accurate predictions Today marks the official end of the 2017 Atlantic hurricane season, which matched NOAA’s seasonal predictions for being extremely active. The season produced 17 named storms of which 10 became hurricanes including six major hurricanes (Category 3, 4 or 5) – including the first two major hurricanes to hit the continental U.S. in 12 years.
Publish Date: 20 November 2017
The United States has launched the first of its new generation of highly advanced polar-orbiting meteorological satellites. Known as JPSS-1 (for Joint Polar Satellite System), the new satellite is the first in a series of missions that the US is contributing to the space-based component of the WMO Integrated Global Observing System (WIGOS) through to 2038.