June 24, 2013
Elevated levels of air pollution reduced the occurrence of North Atlantic hurricanes and other tropical storms for most of the 20th century. Addition to substantiation for mankind’s impact on the weather system, the search found a link connecting these powerful storms and aerosols, the scientific term for specks of material suspended in a gas.
Aerosols can arise in natural form as dusty volcanic plumes, clouds or fog, except are also man-made, such as dirty particles from flaming coal or oil.
The study focused on particles from North America and Europe that were generated mainly from smoldering fossil fuels. Tropical storms were much less frequent during periods when emissions of man-made aerosols amplified larger than the North Atlantic.
For 2013, the US National Oceanic and Atmospheric Administration (NOAA) has predicted 13 to 20 named storms, seven to 11 hurricanes and three to six main hurricanes.
June 19, 2013
The World Bank warns that severe hardships from global warming could be felt within a generation, with an innovative study detailing shocking impacts in Africa and Asia.
The report presents a shocking scenario for the days and years ahead – what we could face in our lifetime.
The United Nations has planned the goal of limiting global warming to 2C from pre-industrial levels, setting for the first time assessable targets to curb greenhouse-gas emissions.
International discussions are aimed at reaching an agreement on that limit by 2015, with the deal due to take effect by 2020. Remarkable and unparalleled heat extremes would hammer the three regions, cutting crop production and causing extensive food shortages.
June 18, 2013
NASA’s 2013 Hurricane and Severe Storms Sentinel or HS3 mission will explore whether Saharan dust and its related warm and dry air, known as the Saharan Air Layer or SAL, favors or suppresses the development of tropical cyclones in the Atlantic Ocean.
The effects of Saharan dust on humid cyclones are a contentious area of science. During the 2012 campaign, NASA’s Global Hawk unmanned aircraft gathered valuable data on the dust layer that swirled around Tropical Storm Nadine for numerous days.
The Saharan dust layer is poised of sand and additional mineral particles that are swept up in air currents and whisked westward over the Atlantic Ocean.
HS3 is a five-year mission specially targeted to investigate the processes that underlie hurricane formation and intensity change in the Atlantic Ocean basin.
June 13, 2013
In case last week’s blow by and squally rains from Tropical Storm Andrea weren’t sufficient to remind you the 2013 hurricane period began almost two weeks ago and will prolong until two days after Thanksgiving.
This year the National Oceanic and Atmospheric management anticipate is for an active hurricane season, predicting that there is a 70 percent chance of having 13 to 20 named storms, of which seven to 11 could become hurricanes, including three to six main hurricanes.
In the right conditions a hurricane with winds less than 111 mph and pushing less than nine feet of water could harshly impact coastal Bryan County.
Now just because NOAA says it will be a hectic season and that a hurricane as comparatively minor as a category 2 making landfall in, or near, Bryan County could produce significant damage for us doesn’t mean that it will happen.
But just because not many strong storms have landed on the shores of coastal Georgia, and none in close to 34 years, doesn’t mean one won’t either.
June 7, 2013
When we think of aircraft that study hurricanes, most of us probably either picture powerful manned airplanes that fly directly through them, or possibly unmanned drones that fly safely over them. The University of Florida’s Prof. Kamran Mohseni developing tiny unmanned aircraft and submarines that will be swept up with the hurricane, gathering data on the power and path of the storm as they go.
The idea is that tens or even hundreds of the planes or subs could be distantly launched via a laptop which was situated safely far away from the storm. Mathematical models would be used to decide where they should head, in order to join up with the hurricane’s storm or water currents in such a way that they could be passed to a target location.
As they neared that pick-up point they would power their motors down, use onboard sensors to notice the arrival of the present they were looking for, power back up in order to merge with it, and then power off another time it had taken them. This would permit them to save energy.
June 6, 2013
Most of Florida’s Gulf Coast was under the first tropical storm warning of the year Wednesday as a hurricane named Andrea debuted the 2013 Atlantic hurricane season.
The warning extensive all the way up from Boca Grande off the southern tip of the Florida peninsula to the Ochlocknee River in the panhandle. A less urgent tropical hurricane watch was in effect up the rest of the East Coast from Flagler, Fla., to Surf City, N.C.
A tropical storm warning means that tropical storm conditions are likely in the next 36 hours; a observe means they’re probable in the next 48 hours. The National Hurricane Center supposed that Andrea was parked in the Gulf of Mexico about 300 miles southwest of Tampa, creeping along at 3 to 5 mph with utmost winds of 40 mph. Tropical storm force winds extended superficial up to 140 miles.
June 3, 2013
The New Orleans metropolitan area is better ready than ever before for the Atlantic hurricane season that begins Saturday, particularly with the lessons learned from Hurricane Isaac and the virtual completion of improvements to the hurricane levee system, a chorale of local, state and federal officials said Friday.
Although with the season beginning Saturday, each of the officials warned that residents and businesses should previously have plans in place to respond to storms, together with migration plans. According to New Orleans Mayor Mitch Landrieu every reaction to a storm depends on the citizens, and you have to have a plan as well.
Isaac was scarcely a Category 1 hurricane in terms of its wind speed. But the unusual combination of its broad size and stall-and-start movement onto the state’s seashore caused an unparalleled surge that flooded areas that hadn’t experienced water even during Hurricane Katrina in 2005.
May 28, 2013
As Hurricane Sandy pounds the East Coast, here’s a big inquiry from the cerebral floss archives. Since Europeans first came to the Americas and the Caribbean, hurricanes have been named using a range of systems. First they were named after Catholic saints. Afterward, the latitude-longitude positions of a storm’s pattern were used as a name. This was a little too unwieldy to use in conversation.
Military meteorologists started giving female names to storms during World War II, and in 1950 the World Meteorological Organization adopted the technique. The WMO devised a scheme of revolving, alphabetical names.
In the late-1970s, the system was given a dose of political truth: male names were added to the Atlantic hurricanes list, as were French and Spanish names, reflecting the languages of the nations affected by the storms.
May 23, 2013
As the new June 1 hurricane season approaches, Plaquemines Parish government has announced that the FEMA-funded wreckage removal plan from Hurricane Isaac is coming to an end. Plaquemines people have until May 27, to place all Isaac debris by the side of the roads for pickup.
The parish government emphasizes that debris placed on rights of way by construction companies will not be picked up as the companies are dependable for their own debris removal. On Oct. 29, FEMA announced that it would offer Plaquemines with about $29 million for debris removal.
The parish received an extra grant of nearly $19 million to repay the parish for private property debris removal. Under FEMA’s Public Assistance grant program, FEMA provides the state with 75 percent of suitable costs, as the parish must cover the remaining 25 percent.
May 21, 2013
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SANTIAGO, Chile: On Monday a magnitude-6.5 earthquake struck off the coast of Chile, the U.S. Geological study supposed, but Chilean officials said it was not felt on land and unnecessary the possibility that it might unleash a tsunami.
The quake was recorded at 5:49 a.m. local time Monday, at a low depth of 10 kilometers (6.2 miles), some 600 kilometers (370 miles) as of the city of Puerto Quellon.
Chile’s oceanographic service said it was not felt on land and economical the possibility of a tsunami. U.S. seismologists initially expected the magnitude at 6.8 later recalculated downward.
Chile is one of the world’s most earthquake-prone countries. A magnitude-8.8 shake and the tsunami it unleashed in 2010 killed more than 500 people and smashed 220,000 homes. It was so strong it changed time, curbing the Earth’s day a little by changing the planet’s rotation.
The biggest earthquake yet recorded also happened in Chile, a magnitude-9.5 in 1960.
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