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Here are some of the articles that have been recently posted to the PASSCAL website:

Important Hardware/Software Notes for Researchers Using PASSCAL Equipment

This page includes important Hardware/Software Notes for Researchers Using PASSCAL Equipment. January 17, 2019: GPS Rollover

Late 2018 PASSCAL learned of a GPS week rollover event that can affect data logger performance and timing. PASSCAL has acquired a GNSS signal generator that can emulate GPS satellite signals. This satellite emulator allows us to test PASSCAL equipment that relies on GPS timing and to determine how equipment will handle the GPS rollover event. To date, we have determined that some models of GPS engines are affected by the rollover. How the rollover errors manifest is dependent on the data logger’s model and firmware version of the GPS engine.

Employment Opportunity at IRIS PASSCAL: Staff Scientist/Hardware Engineer (2)

IRIS/PASSCAL seeks a Staff Scientist/Hardware Engineer to join our hardware team, supporting the development of innovative solutions for testing equipment and supporting PASSCAL projects, both internally and in the field. 

JOB DUTIES

Core responsibilities are to support routine testing of PASSCAL equipment and supporting PASSCAL engineering projects primarily in the lab and in the field as needed. Duties include: Routine testing of PASSCAL’s pooled hardware, research new products, materials and technologies that could advance the equipment pools and optimize support for PI experiments; test, develop and apply methods for testing seismic instrumentation and ancillary scientific equipment; development of specialized equipment to support geophysical installations in all environments; produce reports and maintain documentation and web content related to testing of scientific equipment; and as appropriate, field support of seismic experiments.  

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Employment Opportunity at IRIS PASSCAL: Sr. Staff Scientist/Software Group Supervisor

Senior Staff Scientist/Software Group Supervisor

Institution: IRIS PASSCAL
Open Until: filled

JOB DUTIES:
The core responsibility of the IRIS PASSCAL Software Group Supervisor is to direct and oversee software development and distribution. The Group Supervisor is expected to assess both facility and community software needs, scope and design development projects, and evaluate final products to ensure project goals and performance criteria are achieved. The Group Supervisor is expected to establish development standards and infrastructure to ensure a maintainable software package. The Software Group Supervisor is also expected to devote significant time designing, developing, and maintaining software.

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Employment Opportunity at IRIS PASSCAL: Hardware Specialist

The Incorporated Research Institutions for Seismology Program for Array Studies of the Continental Lithosphere (IRIS PASSCAL) Instrument Center (www.passcal.nmt.edu) at New Mexico Tech is seeking applicants to fill the position of Hardware Specialist.

 

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Magnetotelluric Systems at PASSCAL

Magnetotelluric (MT) methods are used to produce conductivity models of the crust and upper mantle through the recording of geoelectric and geomagnetic field variations at the Earth's surface. Depending on the period of the recordings, these methods can provide results from a few hundred meters depth (short period) to 30 km or deeper (long period). Conductivity is a physical property, which is complementary to seismic velocity, and which is very sensitive to the presence of fluids. When seismic and MT data sets are measured together, the additional data can dramatically improve determinations of the structure of the crust and mantle.  

GPS Rollover: Potential Data Logger Performance & Timing Issue

Late 2018 PASSCAL learned of a GPS week rollover event that can affect data logger performance and timing. PASSCAL has acquired a GNSS signal generator that can emulate GPS satellite signals. This satellite emulator allows us to test PASSCAL equipment that relies on GPS timing and to determine how equipment will handle the GPS rollover event. To date, we have determined that some models of GPS engines are affected by the rollover. How the rollover errors manifest is dependent on the data logger’s model and firmware version of the GPS engine.

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PASSCAL Announces Software release: Nexus, a simple tool for creating SEED meta-data.

PASSCAL is pleased to announce the release of Nexus, a simple tool for creating SEED meta-data.

Nexus is a software tool with a graphical interface that allows users to quickly and easily create and modify SEED meta-data. It outputs StationXML, the recently adopted replacement format for Dataless SEED. Nexus greatly simplifies preparing data for archival at the DMC. 

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Pre-AGU PASSCAL Users PH5 Workshop 2017

Late-stage graduate students! Postdocs! Researchers and faculty!

IRIS PASSCAL Instrument Center would like to invite you to register for our PASSCAL Users Workshop to be held on Sunday December 10th, 2017 (the day before the beginning of the AGU Fall meeting). 

This year's workshop will be a hands-on training session covering the complete process to build a PH5 archive, starting from 'raw' data and moving to a complete archive ready to be shipped to the PIC. We will provide a standard data set for the hands-on exercise so that participants can familiarize themselves with procedures for building and verifying a PH5 archive from raw data.

Transportable Array demonstrates its new drilling rig and sensor emplacement routine for PASSCAL.

March 7th, 2017

With the expansion of TA Alaska into even more remote regions of Alaska and Canada it was necessary to develop and construct an extremely lightweight, high performance helicopter portable air rotary drill weighing less than 1700 lbs and capable of installing a 6” steel casing 2.7m deep in any type of ground including solid rock, frost shattered overburden, cobbles and frozen soils.  Based on these parameters, a custom drill rig system was commissioned and tested by IRIS for specific use on the project.  At PASSCAL we had the opportunity to be among the first testing locations for the newly constructed third generation Purple Drill.  Ryan Bierma, and Max Enders along with Bob Busby from IRIS and Mike Lundgren  from Lundgren Systems (rig developer) operated the rig, and then Ryan and Max demonstrated a mock installation of an STS-5A seismic sensor at the test site behind PASSCAL in Socorro, NM.

 

IRIS/PASSCAL Facility featured on KRQE News 13

The IRIS/PASSCAL Instrument Center was featured in a three-minute video aired on August 22nd, 2016 by Albuquerque, NM station KRQE-TV-13. The video, which included segments on other New Mexico Tech research facilities (EMRTC, Langmuir Lightning Lab, the Magdalena Ridge Observatory, and at Mt. Erebus in Antarctica) can be seen here.

 

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