Measurement of sprite streamer acceleration and deceleration
نویسندگان
چکیده
منابع مشابه
Measurement of sprite streamer acceleration and deceleration
[1] Measurements of streamer velocity reflect the detailed internal microphysics of sprite development that is connected to the effects streamers create in the mesosphere. We report intensified high speed video observations of streamer development acquired at 5,000 to 10,000 frames per second that include the entire altitude range of sprites ( 40–90 km). Downward streamers accelerate to a maxim...
متن کاملSprite streamer initiation from natural mesospheric structures.
Sprites are large, luminous electrical discharges in the upper atmosphere caused by intense cloud-to-ground lightning flashes, manifesting an impulsive coupling mechanism between lower and upper atmospheric regions. Their dynamics are governed by filamentary streamer discharges whose propagation properties have been well studied by past work. However, how they are initiated is still under activ...
متن کاملRelationship between sprite streamer behavior and lightning-driven electric fields
[1] The lightning-driven electric fields not only initiate sprite streamers at high altitudes but also control their propagation to lower altitudes until termination. Thus, the relationship between sprite streamer behavior and their causative lightning-driven ambient electric field can reveal the internal microphysics during sprite development. In this work, we combined the measurements of broa...
متن کاملModel of sprite luminous trail caused by increasing streamer current
[1] This study investigates a possible physical mechanism responsible for the occurrence of the luminous trail of sprite streamers, which is also known as “afterglow.” According to streamer modeling results, when sprite streamers propagate with expansion, acceleration and brightening, the total current flowing through the streamer body also increases. The increasing current results in the rise ...
متن کاملUse of Acceleration-Deceleration Lanes
On the basis of various and recent research studies, it is apparent that highway designers must become more concerned with the relation ship between highway design and traffic behavior. An excellent example of current interest in highway design is the design of acceleration and deceleration lanes. In order to obtain maximum efficiency and safety in the operation of acceleration and deceleratio...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2009
ISSN: 0094-8276
DOI: 10.1029/2009gl037581