Title of Presentation: The Model-Driven Volcano Sensor Web: Progress in 2007

Primary (Corresponding) Author: Ashley Davies

Organization of Primary Author: Jet Propulsion Lab

Co-Authors: Daniel Q. Tran, Lukas Mandrake, Kate Boudreau, Johanna Cecava, Andres Vargas,Alberto Behar, Steve Chien, Rebecca Castano, Stuart Frye, Dan Mandl, Lawrence Ong, Phil Kyle, Robert Wright

Abstract: Rapid response to alerts of impending or active volcanism is vital in the assessment of volcanic risk and hazard. Under the auspices of the NASA AIST Program, the JPL Model-Driven Volcano Sensor Web (MSW) demonstrated such an autonomous response during a volcanic crisis at Nyamulagira volcano, D. R. Congo, in December 2006. During this event, the sensor web quickly provided vital information to volcanologists in the field. The MSW was developed to enable fast science-driven asset command and control. Alerts of volcanic activity from around the world are used to trigger high resolution observations (both spectral and spatial) by the Earth Observing-1 (EO-1) spacecraft (which is managed by the NASA Goddard space Flight Center). Data are processed onboard EO-1 by advanced software (the Autonomous Sciencecraft Experiment [ASE]). If volcanic thermal emission is detected, ASE retasks EO-1 to obtain more data. A summary of the observation is returned within two hours of data acquisition. Products are then automatically generated and distributed to lists of interested persons. At time of writing, we are using MSW assets to monitor the new summit eruption in the Halemaíumaíu crater of Kilauea volcano, HI. In late 2007, a new facet was added to the MSW in the form of ìVolcano Monitorsî each a self-contained SO2 detector, power supply and communication package which were placed on Kilauea to monitor emissions primarily from the Puíu ëOío vent. Not only can these sensors trigger observation requests to EO-1 via the Sensor Web, but the detection of anomalous thermal emission by ASE on EO-1 can trigger an increased data rate by the sensors, demonstrating autonomous satellite-in situ sensor commanding. The MSW now operates under the OGC Web Services architecture, utilizing SensorML. This work was performed at the Jet Propulsion Laboratory, California Institute of Technology, under contract to NASA.