Q. "Operation ice Bridge" is associated with
A. ISRO
B. ISS
C. ESA
A. ISRO
B. ISS
C. ESA
D. NASA
Answer: NASA
Since 2003 NASA has used a satellite, ICESat (Ice, Cloud, and land Elevation Satellite), for observing polar ice. ICESat was retired in 2009 due to a technical malfunction, leaving NASA without a satellite dedicated to ice observance. A new satellite is expected to be launched in 2018. NASA, therefore, introduced the IceBridge program which utilizes an aircraft to make similar measurements.
IceBridge flights began in October 2009 using a DC-8. Beginning in 2010, the DC-8 was joined by a P-3 Orion and other aircraft such as a King Air B-200, Gulfstream V and Guardian Falcon.
There are tradeoffs to using an aircraft instead of a satellite. One drawback is that a satellite can observe a far wider area. Also, satellites take measurements full-time, while IceBridge aircraft measurements are limited to annual campaigns that are several weeks long. Aircraft, however, have the advantages of being able to carry more instruments and target and focus on scientifically interesting areas instead of just flying a fixed path. Also, certain instruments such as ice-penetrating radar only work from the lower altitudes afforded by aircraft like the P-3 Orion and DC-8.
Answer: NASA
Operation Ice Bridge
Operation IceBridge is a 2009–2018 NASA mission that aims to monitor changes in polar ice from an aircraft. It is a temporary replacement for the ICESat satellite until the ICESat-2 launch in 2018.Since 2003 NASA has used a satellite, ICESat (Ice, Cloud, and land Elevation Satellite), for observing polar ice. ICESat was retired in 2009 due to a technical malfunction, leaving NASA without a satellite dedicated to ice observance. A new satellite is expected to be launched in 2018. NASA, therefore, introduced the IceBridge program which utilizes an aircraft to make similar measurements.
IceBridge flights began in October 2009 using a DC-8. Beginning in 2010, the DC-8 was joined by a P-3 Orion and other aircraft such as a King Air B-200, Gulfstream V and Guardian Falcon.
There are tradeoffs to using an aircraft instead of a satellite. One drawback is that a satellite can observe a far wider area. Also, satellites take measurements full-time, while IceBridge aircraft measurements are limited to annual campaigns that are several weeks long. Aircraft, however, have the advantages of being able to carry more instruments and target and focus on scientifically interesting areas instead of just flying a fixed path. Also, certain instruments such as ice-penetrating radar only work from the lower altitudes afforded by aircraft like the P-3 Orion and DC-8.
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