Distributed Acoustic Sensing (DAS) in the Arctic Ocean Postdoctoral Appointee

Sandia National Laboratories

Albuquerque, NM

Job posting number: #7066774 (Ref:672081)

Posted: June 9, 2020

Job Description

This postdoctoral position is a temporary position for up to one year, which may be renewed at Sandia's discretion up to five additional years. The PhD must have been conferred within five years prior to employment. Individuals in postdoctoral positions may bid on regular Sandia positions as internal candidates, and in some cases may be converted to regular career positions during their term if warranted by ongoing operational needs, continuing availability of funds, and satisfactory job performance. : The Geophysics Department at Sandia National Laboratories is looking for a hardworking and dedicated Postdoctoral Researcher for a three-year project exploring the Arctic Ocean environment using distributed acoustic sensing (DAS) on seafloor fiber-optic cable. We are acquiring DAS data off the north coast of Alaska over multiple years to better understand ocean cryospheric processes. Expected signals of interest include, but are not limited to, icequakes, ocean waves, storms, tides, and whale vocalizations. In addition, we also will track boat activity, and use microearthquakes to passively image the seafloor. On any given day, you may be called on to: + Analyze thousands to tens-of-thousands of channels of DAS data. Characterizing, discriminating between, and locating icequakes, earthquakes, whale vocalizations, boats, tides, ocean currents, etc. + Develop or aid in the development of DAS signal processing techniques through scripting or programming using Matlab, Python, or other programming language + Integrate observations from a wide variety of other sensing platforms (such as satellites, ocean buoys, weather stations, etc.), to understand Arctic processes. + Collaborate on research papers, reports and presentations **This position requires some travel to the North Slope of Alaska to acquire data (up to 4 times per year), as well as to relevant scientific conferences.**

+ PhD in geophysics, earth sciences, physics, or mathematics; + Experienced in the application of scientific programming and scripting in Matlab, Python, or other programming language; + Evidence of strong research accomplishments in relevant technical areas as proven in the form of technical publications, presentations, software tools, and/or knowledge of applications; + Ability to obtain and maintain a DOE Q-level security clearance.

+ Research experience with distributed sensing techniques (DAS, DTS, DSS, etc.) + Research experience in cryoseismology, marine geosciences, or ocean-bottom seismology + Proficiency in seismic array processing techniques + Proficiency in seismic ambient noise processing + Familiarity or experience with seismic reflection processing software + Experience in a collaborative research environment + Strong verbal and written communication skills

Department Description:

The Geophysics Department at Sandia National Laboratories performs geophysics research and development in support of Sandia's mission as a national security laboratory. We apply our expertise to address national-level challenges in Sandia mission area programs, including nuclear explosion monitoring, energy exploration and resource characterization in support of national energy security, nuclear nonproliferation, defense, homeland security, and nuclear weapons. The department has a broad range of expertise in field seismology and modeling, subsurface characterization, seismic, electromagnetic, atmospheric acoustic and infrasound modeling, evaluation of seismic and infrasound sensors and systems, and the processing, analysis, and interpretation of all types of geophysical data. The department's technical work spans the spectrum from theoretical to applied and includes strong modeling, lab, field data collection, and analysis capabilities. The department serves as Sandia's resource for geophysics expertise.

About Sandia:

Sandia National Laboratories is the nation’s premier science and engineering lab for national security and technology innovation, with teams of specialists focused on cutting-edge work in a broad array of areas. Some of the main reasons we love our jobs: + Challenging work withamazingimpact that contributes to security, peace, and freedom worldwide + Extraordinary co-workers + Some of the best tools, equipment, and research facilities in the world + Career advancement and enrichment opportunities + Flexible schedules, generous vacations,strongmedical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance* _World-changing technologies. Life-changing careers._ Learn more about Sandia at: http://www.sandia.gov *These benefits vary by job classification.

Security Clearance:

Sandia is required by DOE to conduct a pre-employment drug test and background review that includes checks of personal references, credit, law enforcement records, and employment/education verifications. Applicants for employment need to be able to obtain and maintain a DOE Q-level security clearance, which requires U.S. citizenship. If you hold more than one citizenship (i.e., of the U.S. and another country), your ability to obtain a security clearance may be impacted. Applicants offered employment with Sandia are subject to a federal background investigation to meet the requirements for access to classified information or matter if the duties of the position require a DOE security clearance. Substance abuse or illegal drug use, falsification of information, criminal activity, serious misconduct or other indicators of untrustworthiness can cause a clearance to be denied or terminated by DOE, resulting in the inability to perform the duties assigned and subsequent termination of employment.

EEO Statement:

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, or veteran status and any other protected class under state or federal law.

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.

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