Geographical Magazine Coral s susceptibility to bleaching varies with geography, raising conservation hope 2021 Field observations of corals around the world reveal that not all species are as susceptible to bleaching as previous models predict
Coral bleaching is now a well-known phenomenon. When corals are exposed to heat stress, they expel the symbiotic algae that give them their colour and provide them with a large proportion of their energy needs. In 1998, vast tracts of the Great Barrier Reef were bleached ghostly white. A second recent bleaching event occurred in 2010–2011, when record high rainfalls in eastern Australia caused discharges of freshwater to reduce the salinity of coastal waters. Then, in 2015–16, elevated sea temperatures, combined with a strong El Niño event, caused 93 per cent of coral on the northern section of the Great Barrier Reef to bleach.
Updated 9:30 p.m.
Snowfall is beginning to ease in the greater Twin Cities area. But high winds will continue overnight. That means blowing snow will continue to re-cover roadways that may have been cleared by plows. Travel conditions will remain extremely dangerous across Minnesota into early Thursday morning.
Radar update: Still light snow and airborne blowing snow across Twin Cities. Back edge of snow moves east through Twin Cities by midnight. Winds continue overnight. #mnwxpic.twitter.com/njQLv8XLYT MPR Weather (@MPRweather) December 24, 2020
In the past two hours, wind gusts to 65 mph have been recorded in Grand Marais, and 68 mph in Redwood Falls.
How NOAA is using drones to better understand hurricanes
How scientists are using technology to learn more about hurricanes
The 2020 Atlantic hurricane season saw a record number of storms. Now, scientists are using new advancements in technology to learn even more about the storms.
NEW YORK - This past hurricane season broke records. It has also been an active and challenging season for meteorologists to forecast. But new technology is being created right now to help better understand the strength and direction of the king of low pressure – the hurricane.
It is a spectacular sight: NOAA hurricane hunters flying through a hurricane then busting past the eyewall into its center. Attached to the aircraft are special weather instruments to collect data, like temperature, dew point, wind velocity, air pressure, to help meteorologists figure out the strength of a tropical cyclone and the direction it is taking.
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Parts of Minnesota and the Upper Midwest will see a rare planetary alignment Monday night. The great conjunction of 2020 is here.
Jupiter and Saturn will practically kiss in the southwest sky just after sunset. The two planets will be just .1-degree apart. That’s the closest nighttime sky alignment in about 800 years since the two planets met in 1226.
NASA explains.
Skywatchers are in for an end-of-year treat. What has become known popularly as the “Christmas Star” is an especially vibrant planetary conjunction easily visible in the evening sky over the next two weeks as the bright planets Jupiter and Saturn come together, culminating on the night of Dec. 21.