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2009 Annual Report - NASA Airborne Science Program

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Western States Fire<br />

<strong>Science</strong> Focus:<br />

HQ Sponsor:<br />

PI:<br />

Applied <strong>Science</strong>: Disaster Management<br />

Ambrose, Dorne<br />

Ambrosia<br />

The Western States UAS Fire Imaging effort<br />

project, received ARRA funding to continue<br />

support of wildfire imaging efforts through<br />

2011. The efforts focus on the use of the <strong>NASA</strong><br />

Ikhana UAS and the <strong>NASA</strong> DFRC B200 King<br />

Air (currently under airframe modifications). The<br />

Ikhana is currently allowed to fly fire missions<br />

within 50 nm of Special Use Airspace (SUA).<br />

This limitation has steered the WRAP team to<br />

look to additional manned platforms (<strong>NASA</strong><br />

DFRC B200 King Air) for less restrictive flight<br />

operation capabilities. The <strong>NASA</strong> DFRC B200<br />

King Air is being modified to allow various sensor<br />

packages and satellite data telemetry to be outfitted<br />

on the platform, and is planned for platform /<br />

sensor check-flights in Summer 2010, prior to the<br />

major western US fire season. The WRAP team<br />

anticipates use of that platform to support wildfire<br />

imaging efforts.<br />

Due to a minimal fire season in fall 2008 (early<br />

FY<strong>2009</strong>), the AMS-Wildfire sensor and the<br />

Ikhana did not support any fire data collection<br />

missions. During the second and third FY quarter<br />

of FY<strong>2009</strong>, the Autonomous Modular Scanner<br />

(AMS)-Wildfire sensor spectral characteristics<br />

were modified to prepare it for use in supporting<br />

atmospheric science on the <strong>NASA</strong> Global Hawk<br />

UAS, as part of the GloPac mission series. Due to<br />

weight and balance issues with the Global Hawk<br />

platform, the AMS-Wildfire was removed from<br />

the GloPac payload. The sensor was de-integrated<br />

and made available to support wildfire observation<br />

missions on the Ikhana in late summer <strong>2009</strong>.<br />

After sensor spectral channel modifications in<br />

September <strong>2009</strong> (to change the mid-IR channels to<br />

their fire imaging characteristics used previously),<br />

the AMS-Wildfire was further modified by<br />

expanding the sensor from 12-channels to<br />

16-channels, allowing for both high- and low-gain<br />

sensor spectral sensitivities in the mid-infrared<br />

(Mid-IR) and thermal-infrared (TIR) wavelength<br />

channels (channels 9-12). This allowed for<br />

improved discrimination of wildfire properties.<br />

After the sensor modifications were completed,<br />

the AMS was installed in the Ikhana and a test<br />

flight was flown to ensure system operations prior<br />

to supporting national / state fire emergencies.<br />

A four-hour test flight was flown September 11,<br />

<strong>2009</strong> within the confines of the Edwards Air<br />

Force Base (EAFB) Restricted Area, and system<br />

shakeout occurred. Following the test mission,<br />

various issues involving the aircraft / satcom data<br />

telemetry system were discovered (nationwide<br />

fleet issues) and the aircraft / sensor issues were<br />

worked on extensively.<br />

The western US fire season was considered “light”<br />

by previous fire year averages and nationwide,<br />

the season was closed by mid-October <strong>2009</strong>. No<br />

fire support missions were therefore flown in late<br />

FY <strong>2009</strong>. The southern California fire season<br />

remained an area of concern, due to the frequent<br />

occurrence of Santa Ana wind conditions,<br />

spawning large fire complexes. Due to these<br />

potential fire issues, both the <strong>NASA</strong>-ARC and<br />

<strong>NASA</strong>-DFRC Ikhana mission team remained<br />

at-the-ready to support any necessary wildfire<br />

emergency request flights in October / November<br />

<strong>2009</strong> (early FY2010).<br />

For more information, visit: http://geo.arc.nasa.<br />

gov/sge/WRAP/<br />

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