Post by sky on Jun 2, 2012 17:41:35 GMT 12
From the NASA/Goddard Space Flight Center, it seems the days of the Orion P3 Hurricane Hunter aircraft may soon be numbered.
NASA mission sending unmanned aircraft over hurricanes this year
NASA’s Global Hawk No. 872 soars aloft on a functional check flight of the aircraft payload system and science instruments for the Genesis and Rapid Intensification Processes (GRIP) mission in August 2010. (NASA photo / Tony Landis).
Beginning this summer and over the next several years, NASA will be sending unmanned aircraft dubbed “severe storm sentinels” above stormy skies to help researchers and forecasters uncover information about hurricane formation and intensity changes.
Several NASA centers are joining federal and university partners in the Hurricane and Severe Storm Sentinel (HS3) airborne mission targeted to investigate the processes that underlie hurricane formation and intensity change in the Atlantic Ocean basin.
NASA’s unmanned sentinels are autonomously flown. The NASA Global Hawk is well-suited for hurricane investigations because it can over-fly hurricanes at altitudes greater than 60,000 feet with flight durations of up to 28 hours – something piloted aircraft would find nearly impossible to do. Global Hawks were used in the agency’s 2010 Genesis and Rapid Intensification Processes (GRIP) hurricane mission and the Global Hawk Pacific (GloPac) environmental science mission.
The mission logo for the Hurricane and Severe Storm Sentinel (HS3) airborne mission. HS3 will investigate the processes that underlie hurricane formation and intensity change in the Atlantic Ocean basin.
“Hurricane intensity can be very hard to predict because of an insufficient understanding of how clouds and wind patterns within a storm interact with the storm’s environment. HS3 seeks to improve our understanding of these processes by taking advantage of the surveillance capabilities of the Global Hawk along with measurements from a suite of advanced instruments,” said Scott Braun, HS3 mission principal investigator and research meteorologist at NASA’s Goddard Space Flight Center in Greenbelt, Md.
HS3 will use two Global Hawk aircraft and six different instruments this summer, flying from a base of operations at Wallops Flight Facility in Virginia.
“One aircraft will sample the environment of storms while the other will measure eyewall and rainband winds and precipitation,” Braun said. HS3 will examine the large-scale environment that tropical storms form in and move through and how that environment affects the inner workings of the storms.
HS3 will address the controversial role of the hot, dry, and dusty Saharan Air Layer in tropical storm formation and intensification. Past studies have suggested that the Saharan Air Layer can both favor or suppress intensification. In addition, HS3 will examine the extent to which deep convection in the inner-core region of storms is a key driver of intensity change or just a response to storms finding favorable sources of energy.
The HS3 mission will operate during portions of the Atlantic hurricane seasons, which run from June 1 to November 30. The 2012 mission will run from late August through early October.
www.nasa.gov/centers/goddard/home/index.html
NASA mission sending unmanned aircraft over hurricanes this year
NASA’s Global Hawk No. 872 soars aloft on a functional check flight of the aircraft payload system and science instruments for the Genesis and Rapid Intensification Processes (GRIP) mission in August 2010. (NASA photo / Tony Landis).
Beginning this summer and over the next several years, NASA will be sending unmanned aircraft dubbed “severe storm sentinels” above stormy skies to help researchers and forecasters uncover information about hurricane formation and intensity changes.
Several NASA centers are joining federal and university partners in the Hurricane and Severe Storm Sentinel (HS3) airborne mission targeted to investigate the processes that underlie hurricane formation and intensity change in the Atlantic Ocean basin.
NASA’s unmanned sentinels are autonomously flown. The NASA Global Hawk is well-suited for hurricane investigations because it can over-fly hurricanes at altitudes greater than 60,000 feet with flight durations of up to 28 hours – something piloted aircraft would find nearly impossible to do. Global Hawks were used in the agency’s 2010 Genesis and Rapid Intensification Processes (GRIP) hurricane mission and the Global Hawk Pacific (GloPac) environmental science mission.
The mission logo for the Hurricane and Severe Storm Sentinel (HS3) airborne mission. HS3 will investigate the processes that underlie hurricane formation and intensity change in the Atlantic Ocean basin.
“Hurricane intensity can be very hard to predict because of an insufficient understanding of how clouds and wind patterns within a storm interact with the storm’s environment. HS3 seeks to improve our understanding of these processes by taking advantage of the surveillance capabilities of the Global Hawk along with measurements from a suite of advanced instruments,” said Scott Braun, HS3 mission principal investigator and research meteorologist at NASA’s Goddard Space Flight Center in Greenbelt, Md.
HS3 will use two Global Hawk aircraft and six different instruments this summer, flying from a base of operations at Wallops Flight Facility in Virginia.
“One aircraft will sample the environment of storms while the other will measure eyewall and rainband winds and precipitation,” Braun said. HS3 will examine the large-scale environment that tropical storms form in and move through and how that environment affects the inner workings of the storms.
HS3 will address the controversial role of the hot, dry, and dusty Saharan Air Layer in tropical storm formation and intensification. Past studies have suggested that the Saharan Air Layer can both favor or suppress intensification. In addition, HS3 will examine the extent to which deep convection in the inner-core region of storms is a key driver of intensity change or just a response to storms finding favorable sources of energy.
The HS3 mission will operate during portions of the Atlantic hurricane seasons, which run from June 1 to November 30. The 2012 mission will run from late August through early October.
www.nasa.gov/centers/goddard/home/index.html