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Coral reefs are a natural habitat for many species, as well as being of high economic and touristic significance. However, they represent an extremely sensitive ecosystem with a narrow ecological limit: prolonged high temperatures can lead to bleaching, in which corals expel their symbiotic algae and eventually corals will degrade and die. This work investigates the potential threat of rising temperatures to coral reefs in Southeast Asian Seas through a case study of the UNESCO Cu Lao Cham – Hoi An Biosphere Reserve. We assessed the risk caused by both rising sea surface temperature (SST) and occurrence of more extreme El Niño events. Using outputs from a regionally-downscaled climate model, we found that by the decades 2041-2050 and 2051-2060, whether with RCP 4.5 or RCP 8.5, the environmental temperature will change beyond the coral capacity threshold. Of particular concern is RCP 8.5, where the number of weeks per decade in which SST exceeds the threshold of coral reef bleach ....
Physics - Pinpointing the Roots of Extreme Weather Events aps.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from aps.org Daily Mail and Mail on Sunday newspapers.
The HiDRON stratospheric glider achieved controlled flight following a release from a sounding balloon at altitudes above 82,000 feet June 1 and 4, and 98,000 feet June 6.
The mission objectives were to advance new systems for forward-sensing turbulence detection onboard aircraft at near-space and commercial flight altitudes. The flight campaign team included Aliaksei Stratsilatau, CEO of UAVOS, the HiDRON autopilot developer and supplier; Sean Bailey, principal investigator; Ryan Nolin, flight technician from the University of Kentucky; Qamar Shams, sensor inventor from NASA Langley; and balloon launch specialists Andrew Denney and Victor Davison from PSL to assist with launch logistics.
The collaboration converged at Spaceport America to combine the novel, high-altitude aerial platform with multi-hole wind probe and infrasonic microphone sensors to advance forward detection of turbulence systems. During the ascent phase, the platform captured a stunn ....
Kratos Developing Hypersonic F - GuruFocus.com gurufocus.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from gurufocus.com Daily Mail and Mail on Sunday newspapers.
Kratos wins US Navy contract to build hypersonic experimental test vehicle naval-technology.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from naval-technology.com Daily Mail and Mail on Sunday newspapers.