Volcano SRI 4 D Volcano Seismic Tomography in

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Volcano. SRI: 4 D Volcano Seismic Tomography in a Large-scale Sensor Network Wen. Zhan

Volcano. SRI: 4 D Volcano Seismic Tomography in a Large-scale Sensor Network Wen. Zhan Song, Ph. D. Associate Professor Director of Sensorweb Research Lab Department of Computer Science Georgia State University Sensorweb Research Laboratory Georgia State University

Volcano. SRI: Volcano Seismic Realtime Imaging Volcano. SRI: Volcano Seismic Realtime Imaging * make

Volcano. SRI: Volcano Seismic Realtime Imaging Volcano. SRI: Volcano Seismic Realtime Imaging * make the fictional holographic projector “Virgil” in Supervolcano film a reality: http: //www. youtube. com/watch? v=WF-RKzq. Ntz 0 (3: 49) NSF CDI($1. 83 M 2011 -2015): Volcano. SRI: 4 D Volcano Tomography in a Large-scale Sensor Networks (PI: Song (GSU), Co-PI: Lees (UNC), Xing (MSU)). http: //sensorweb. cs. gsu. edu/research/Volcano. SRI. html Sensorweb Research Laboratory -2 - Georgia State University

Volcano. SRI: Sensorweb Research Laboratory Vigil in Supervolcano Film -3 - Georgia State University

Volcano. SRI: Sensorweb Research Laboratory Vigil in Supervolcano Film -3 - Georgia State University

Volcano. SRI: Volcano Seismic Realtime Imaging The tentative deployment map at Ecuador Sensorweb Research

Volcano. SRI: Volcano Seismic Realtime Imaging The tentative deployment map at Ecuador Sensorweb Research Laboratory -4 - Georgia State University

Instrumentation Sensorweb Research Laboratory -5 - Georgia State University

Instrumentation Sensorweb Research Laboratory -5 - Georgia State University

Tomographic Inversion n – number of nodes in the network m – dimension of

Tomographic Inversion n – number of nodes in the network m – dimension of tomography; thus the size of tomography model is m 3 A s nxm 3 m 3 x 1 node i = t nx 1 In Volcano. SRI, n =500, m = 500, although each row Ai is very sparse. Each node i only has Ai and ti, e. g. , the i-th row info in A and t. All nodes together to find s such that ||As-t|| is minimized. s is the 3 D velocity model and can be very big (e. g. , 500 x 500, if m=500). Here, A is just illustrated as the matrix for one EQ event only. There will be many EQ events and EQ event is processed one after another. Sensorweb Research Laboratory -6 - Georgia State University

Multi-resolution Evolving Tomography Sensorweb Research Laboratory -7 - Georgia State University

Multi-resolution Evolving Tomography Sensorweb Research Laboratory -7 - Georgia State University

Vertical Tomograph Partition Sensorweb Research Laboratory -8 - Georgia State University

Vertical Tomograph Partition Sensorweb Research Laboratory -8 - Georgia State University

Accuracy Sensorweb Research Laboratory -9 - Georgia State University

Accuracy Sensorweb Research Laboratory -9 - Georgia State University

Robustness Sensorweb Research Laboratory -10 - Georgia State University

Robustness Sensorweb Research Laboratory -10 - Georgia State University

Communication Cost Sensorweb Research Laboratory -11 - Georgia State University

Communication Cost Sensorweb Research Laboratory -11 - Georgia State University

Oilfield Explorations http: //www. forbes. com/2004/10/04/cx_af_1004 oilimaging. html Sensorweb Research Laboratory -12 - Georgia

Oilfield Explorations http: //www. forbes. com/2004/10/04/cx_af_1004 oilimaging. html Sensorweb Research Laboratory -12 - Georgia State University

Thanks for listening! Thank you! Questions or Comments? Sensorweb Service Portal Dr. Wen. Zhan

Thanks for listening! Thank you! Questions or Comments? Sensorweb Service Portal Dr. Wen. Zhan Song [email protected] edu (404)413 -5734 Sensor Web: Connecting Dots for Intelligence Sensorweb Research Laboratory More information: http: //sensorweb. cs. gsu. edu -13 - Georgia State University

Space In-situ Sensor Web NASA project ($1. 6 M 2007 -2009): Optimized Autonomous Space

Space In-situ Sensor Web NASA project ($1. 6 M 2007 -2009): Optimized Autonomous Space In-situ Sensorweb. Collaborative project between WSU, USGS and JPL (PI: Song, Co-I: Shirazi, La. Husen, Kedar, Chien, Webb). NASA Video: http: //sensorweb. cs. gsu. edu/news. html Project website: http: //sensorweb. cs. gsu. edu/research/oasis. html Sensorweb Research Laboratory -14 - Georgia State University

omnidirectional antenna GPS antenna air-drop hook ash detector seismic sensor - i. Mote 2

omnidirectional antenna GPS antenna air-drop hook ash detector seismic sensor - i. Mote 2 and accessories - infrasonic sensors - air-alkaline batteries Sensorweb Research Laboratory -15 - Georgia State University