Posts Tagged 'meteorology'

Australian Heat Wave Causes Gadgets to Fail

Australia needed new colors to show the forecast heatwave on their temperature map (they’ve since revised predictions down to 122ºF/50ºC). Credit: Australia’s Bureau of Meteorology

The Australian heat wave is getting so hot that Australia’s Bureau of Meteorology had to add new colors to its weather map. There are parts of Australia that have achieved temperatures above 122ºF (50ºC), temperatures which were off the scale until recently.

Read more @ SciTechDaily

The Inherent Unpredictability of El Nino Events

Corals collected on islands in the central Pacific reveal that the strength and frequency of the climate phenomenon commonly known as El Niño is highly unpredictable.Credit: Gary Meek/Georgia Tech

El Niño events are not as predictable as previously thought. According to new analyses of climate records locked within ancient corals, the frequency and strength of the ocean-warming phenomenon were more variable during the last century than, on average, during the past 7,000 years.

Read more @ SciTechDaily

Atmospheric River Observatories Allow Accurate Weather Prediction of Floods

Mobile AR Observatory. Credit: NOAA

Atmospheric rivers are long, narrow conveyor belts of rainstorms that stream in from the Pacific Ocean. Meteorologists have been able to predict the storms five days in advance, thanks to a new network of weather sensors recently installed in California.

Read more @ SciTechDaily

Commercial Network of Microsatellites Aims to Help Weather Prediction

cosmic-satellites

Most orbiting satellites point down towards Earth, but the satellites of the Constellation Observing System for Meteorology look sideways. Ionosphere and Climate (COSMIC) look towards the curving horizon in order to track the dozens of satellites that are part of the Global Positioning System. By tracking their radio signals, COSMIC is providing atmospheric data that enhances weather forecasts and climate models.

Read more @ SciTechDaily

It’s Impossible to Stop the Seas from Rising Completely

rising-seas

Global sea levels have risen about seven inches in the past hundred years, and that pace is steadily accelerating thanks to climate change. This rise in sea levels threatens most coastal areas, and makes storm surges much worse, as in the case of hurricanes as well as smaller storms.

Read more @ SciTechDaily

Hurricane Sandy Viewed from Space

hurricane-sandy-space-NASA

Hurricane Sandy has been downgraded to a post-cyclone storm, and most of the devastating effects of the hurricane are past, but people in 22 states in the USA are still dealing with the effects of its landfall.

Read more @ SciTechDaily

Laser Beams Used to Create Filament Paths Could Potentially Direct Lightning

laser-lightning

Lasers beams have been used for the first time to trigger and divert lightning bolts. It was first postulated in the 1990s that lasers could be used to create a low-resistance pathway through the atmosphere, allowing lightning bolts to use the path of least resistance.

Read more @ SciTechDaily


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