Monday, May 2, 2016

UAS Application in Atmospheric and Weather Observation

The current weather services predict weather based on observations from various sources like a network of ground stations, balloon launches, weather radars, and weather satellites.  These sources suffer from restrictions. For instance, weather radars and ground stations are limited to their locale (UAS Weather Project, 2016)

UAS utilization in weather prediction is characterized by its mobility and ability to track weather systems and weather phenomena.  Due to its inherent ability to operate for elongated periods, UAS can track the development of weather systems from the time of inception until dissipation.  UAS are especially useful in penetrating hazardous phenomena like tornados and thunderstorms (Cox, Nagy, Skoog & Somers, 2004). 

The National Oceanic and Atmospheric Administration (NAOO) started to utilize UAS as early as 2005.  One of its systems is predicated on the Global Hawk.  The unique ability of the Global Hawk to operate continuously at very high altitudes makes it a crucial asset in surveillance operations targeting hurricanes and thunderstorms.  The system will provide accurate hurricane predictions over longer periods (Reese, 2014)

Another system is the Pilatus.  It is lightweight and targeted for arctic regions.  The main purpose is the detection of greenhouse gases and generally examining the atmosphere in the polar area (de Boer et al., 2016).

The weather tracking applications utilizing UAS are somewhat restricted by the current regulations and the lack of ability to operate in all areas of the NAS.  There are also technological challenges to the niche.  Most of the projects are experimental in nature and involve deferent sets of sensors, target specific data collection, and involve different project development schemes (Axisa & DeFelice, 2016).


References
Axisa, D. & DeFelice, T. (2016). Modern and prospective technologies for weather modification activities: A look at integrating unmanned aircraft systems. Atmospheric Research, 178-179, 114-124. http://dx.doi.org/10.1016/j.atmosres.2016.03.005
Cox T., Nagy C., Skoog M., Somers I. (2004). Civil UAV Capability Assessment. Retrieved from https://www.nasa.gov/centers/dryden/pdf/111761main_UAV_Capabilities_Assessment.pdf
Hurricane-Proof Drones Are the Storm Chasers of Tomorrow - D-brief. (2014).D-brief. Retrieved 2 May 2016, from http://blogs.discovermagazine.com/d-brief/2014/09/08/future-hurricane-drones/#.Vyag9zB97Dd
de Boer, G., Palo, S., Argrow, B., LoDolce, G., Mack, J., & Gao, R. et al. (2016). The Pilatus unmanned aircraft system for lower atmospheric research. Atmos. Meas. Tech., 9(4), 1845-1857. http://dx.doi.org/10.5194/amt-9-1845-2016
NASA Armstrong Fact Sheet: Ikhana Predator B. (2016). NASA. Retrieved 2 May 2016, from http://www.nasa.gov/centers/armstrong/news/FactSheets/FS-097-DFRC.html
OSU selected by NSF for UAS Weather Project | Unmanned Aircraft Systems. (2016). Unmanned.okstate.edu. Retrieved from https://unmanned.okstate.edu/node/77
Reese, A. (2014). Hurricane-Proof Drones Are the Storm Chasers of Tomorrow. Discover. Retrieved from http://blogs.discovermagazine.com/d-brief/2014/09/08/future-hurricane-drones/#.VyahxjB97De



1 comment:

  1. Laith, great idea for a UAS mission. This platform would combine some of the endurance of a balloon, with the mobility of an aircraft. One of the phenomena I think would most benefit from this would be tornados, since the precise location of one is usually difficult to predict and pre-position sensors near.

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