Winter 2019

January 11, 2019

Speaker: Elizabeth Cochran, USGS in Pasadena

Title: Evolutionary characteristics of families of repeated earthquakes in southern Kansas induced by wastewater disposal

cochran


January 18, 2019

Speaker: Miao Zhang, Stanford

Title: Automatic Seismic Detection and Location

mz


January 25, 2019

Speaker: Robert Citron, UC Berkeley

Title: Early Mars: Giant Impacts, Super-plumes, and Vast Oceans

Robert


February 1, 2019

Speaker: Xinting Yu, John Hopkins

Title: Dune Formation on Titan: Insight from Interparticle Forces and Mechanical Properties of Titan Organic Analogs

Abstract: Extensive dunes on Titan have been observed by Cassini and are inferred to be made of mainly organics produced photochemically from the atmosphere. However, it has been a mystery how the organic sand particles are created—either by transforming the small aerosol particles in Titan’s atmosphere into larger sand sized particles or by breaking down organic deposits on the surface. By using novel techniques including colloidal atomic force microscopy and nanoindentation, I have measured interparticle forces and various material properties of the Titan complex organic analog, “tholin”, to help us better understand sand formation and transportation on Titan.

xingting


February 8, 2019

Speaker: Nadine Igonin, University of Calgary

Title: Hydraulic fracturing induced seismicity: insights from high-resolution data in Alberta, Canada

Nadine


February 15, 2019

Speaker: Katherine de Kleer, Caltech

Title: The Galilean Satellites: Surface Environments and Geological Processes

katherine


February 22, 2019

Speaker: Philippe Lognonn, Institut de Physique du Globe de Paris

Title: SEIS on Mars: Deployment Challenge and first observations

philip


March 1, 2019

Speaker: Darlene Lim, NASA ARC

Title: Scientific Analogs and the Development of Human and Robotic mission architectures for Solar System exploration

Abstract: Analogs are destinations on Earth that allow researchers to approximate operational and/or physical conditions on other planetary bodies and within deep space. Over the past decade, select NASA teams have been conducting geobiological field science studies under simulated deep space and Mars mission conditions. Each of these missions integrate scientific and operational research with the goal to identify concepts of operations (ConOps) and capabilities that will enable and enhance scientific return during human and human-robotic missions to the Moon, into deep space, and on Mars. Working under these simulated mission conditions presents a number of unique challenges that are not encountered during typical scientific field expeditions. However, there are significant benefits to this working model from the perspective of the human space flight and scientific operations research community. Specifically, by applying human (and human-robotic) mission architectures to real field science endeavors, we create a unique operational litmus test for those ConOps and capabilities that have otherwise been vetted under circumstances that did not necessarily demand scientific data return meeting the rigors of peer-review standards. This presentation will focus on several on-going NASA analog programs: (SSERVI funded) FINESSE (Field Investigations to Enable Solar System Science and Exploration), (P-STAR funded) BASALT (Biologic Analog Science Associated with Lava Terrains), and (P-STAR funded) SUBSEA (Systematic Underwater Biogeochemical Science and Exploration Analog) research projects. These are multi-year programs dedicated to conducting field science research with the expressed goal of iteratively developing, implementing, and evaluating concepts of operations (ConOps) and supporting capabilities intended to enable and enhance human and robotic scientific exploration of the Moon, deep space and Mars.

darlene


March 8, 2019

Speaker: Richard Urata, NASA Ames Research Center

Title: Simulating the Martian Climate at the NASA Ames Mars Climate Modeling Center


March 15, 2019

Speaker: Nate Lindsey, UC Berkeley

Title: Sound from light: Three examples of how fiber-optics are changing seismology

nate