From rene.gassmoeller at mailbox.org Wed Mar 1 10:28:32 2017
From: rene.gassmoeller at mailbox.org (Rene Gassmoeller)
Date: Wed, 1 Mar 2017 11:28:32 -0700
Subject: [CIG-ALL] ASPECT 1.5.0 released
Message-ID: <35834483-f4fb-e1d6-b2e8-1b751d8abd1e@mailbox.org>
We are pleased to announce the release of ASPECT 1.5.0. ASPECT is the
Advanced
Solver for Problems in Earth's ConvecTion. It uses modern numerical
methods such
as adaptive mesh refinement, multigrid, and a modular software design to
provide a fast, flexible, and extensible mantle convection solver. ASPECT is
available from
https://aspect.dealii.org/
and the release is available from
https://github.com/geodynamics/aspect/releases/tag/v1.5.0
This release includes the following changes:
- New: Choice between different formulations for the governing equations
including Boussinesq and anelastic liquid approximation.
- New: Melt transport (two-phase flow).
- Particles: new generators, ghost exchange, performance improvements,
interpolation to fields.
- New: Nondimensional material model for incompressible (using the
Boussinesq
approximation) and compressible computations (with ALA or TALA) for
nondimensionalized problems. This can be used for benchmark problems like
Blankenbach, King, etc..
- New: Optional DG method for temperature/composition.
- Adiabatic conditions: rework, now includes a reference density profile.
- Free surface: overhaul.
- New cookbooks: continental extension, finite strain, BurnMan interface,
active tracers.
- New benchmarks: TanGurnis, Blankenbach, King.
- New: viscoplastic material model.
- Material model interface cleanup.
- Assembly performance improvements.
- New: memory statistics postprocessor.
- New: initial topography plugins.
- Many other fixes and small improvements.
A complete list of changes can be found at
https://aspect.dealii.org/doc/doxygen/changes_between_1_84_80_and_1_85_80.html
and the release is also available from
https://github.com/geodynamics/aspect/releases/tag/v1.5.0
Wolfgang Bangerth, Juliane Dannberg, Rene Gassmoeller, Timo Heister, and
many
other contributors.
--
Rene Gassmoeller
http://www.math.colostate.edu/~gassmoel/
From ljhwang at ucdavis.edu Sun Mar 5 10:41:35 2017
From: ljhwang at ucdavis.edu (Lorraine Hwang)
Date: Sun, 5 Mar 2017 10:41:35 -0800
Subject: [CIG-ALL] This Week's Webinar and Summer Workshops
Message-ID: <18507CF1-C820-4296-8F6B-80D38A4A0CD8@ucdavis.edu>
Don’t miss the following CIG events. Registration deadlines for summer workshops are fast approaching!
———————————————————————————————————————————————————
Thursday, March 9th, 2017
2:00 PM PT
Adobe Connect: http://uc-d.adobeconnect.com/r28i3av93ti/
"Introduction to the spectral-infinite-element method"
~ by Hom Nath Gharti and Jeroen Tromp, Princeton University
The governing equations for the elastic-gravitational deformation of
an Earth model involve a perturbed gravitational potential. The
gravitational potential is governed by Poisson’s equation inside
the Earth and by Laplace’s equation in the rest of space. The
infinite domain and large-scale nature of the problem poses
difficult challenges for numerical simulations in 3D Earth models.
In order to tackle these challenges, we introduce a
spectral-infinite-element method by combining the spectral-element
method with the mapped infinite-element method. Spectral elements
are used to represent internal fields, and infinite elements
represent the external gravitational field. Infinite elements
naturally couple with spectral elements, thereby avoiding an
iterative procedure which is necessary if the Poisson/Laplace
equation has to be solved independently. Potential applications of
new method include long-period seismic wave propagation, as well as
quasistatic problems, such as post-earthquake relaxation and glacial
isostatic adjustment.
———————————————————————————————————————————————————
REGISTRATION DEADLINES
2017 ASPECT Hackathon
May 6-17
Blue Ridge, Georgia
https://geodynamics.org/cig/events/calendar/2017-aspect-hack/?eID=1300
Registration Closes: March 31, 2017
Notification of Acceptance Begins: April 1, 2017
2017 Crustal Deformation Modeling Workshop
June 26-30
Golden, Colorado
https://geodynamics.org/cig/events/calendar/2017-cdm-workshop/?eID=1292
Registration Closes: May 15, 2017
Notification of travel support begins: April 1, 2017
*** Registration is first come first serve and limited to 60 participants
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From Danielle.Sumy at iris.edu Tue Mar 7 05:53:27 2017
From: Danielle.Sumy at iris.edu (Danielle Sumy)
Date: Tue, 7 Mar 2017 08:53:27 -0500
Subject: [CIG-ALL] 2017 EarthScope National Meeting: Alaska Airlines
Discount and Scholarship Application deadline April 3rd
Message-ID: <48AB91E7-79CD-413C-BAE2-DC416A96AB9C@iris.edu>
The 2017 EarthScope National Meeting will be held in Anchorage, Alaska from May 16-18, 2017. Conference highlights include the opportunity to showcase research in oral and poster sessions, hear firsthand results of pioneering EarthScope studies and a synthesis of findings to date, and the option to participate in a post-meeting field trip led by local EarthScope scientists. Early career scientists are strongly encouraged to attend!
Please apply for the student and postdoc scholarship, deadline of April 3rd. A total of fifty (50) applicants will be chosen, and if selected, you will receive up to four (4) days of lodging (double occupancy), a registration fee waiver, and $600 to cover travel. Please apply on the main website page: https://www.iris.edu/hq/workshops/2017/05/earthscope_17
In addition, we are pleased to announce that Alaska Airlines is offering EarthScope attendees a discount on flights between the US, Canada, and Mexico to Anchorage, Alaska. Dates of travel must be between May 12-22, 2017, and the discount for booking is ECMX720. Please visit alaskaair.com to book your travel.
=========================
Important Dates:
Scholarship Application Deadline: April 3
Registration, Hotel, and Abstract Deadline: April 21
=========================
Have any questions? Please email Krystin Poitra (krystin.poitra at iris.edu ).
See you there!
___________________________
Danielle Sumy, PhD
Seismologist
Project Associate
Instrumentation Services
Education and Public Outreach
The IRIS Consortium
1200 New York Ave. NW
Washington, DC 20005
Phone: 202-407-7015
Fax: 202-682-0633
Email: danielle.sumy at iris.edu
www.iris.edu
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From Danielle.Sumy at iris.edu Wed Mar 22 10:53:58 2017
From: Danielle.Sumy at iris.edu (Danielle Sumy)
Date: Wed, 22 Mar 2017 13:53:58 -0400
Subject: [CIG-ALL] IRIS WEBINAR: Geoscience education research at the
post-secondary and professional level - 3/29, 10:30 AM Eastern
Message-ID: <473D2B18-01C9-4C85-8EF2-BA0B52F40086@iris.edu>
Please register for Geoscience education research at the post-secondary and professional level on March 29, 2017 10:30 AM EDT at:
https://attendee.gotowebinar.com/register/6991335226038909442
Presenters: Dr. Clare Bond (University of Aberdeen) and Dr. Eric Riggs (Texas A&M University)
Abstract: Geoscience education research is a broad field related to studies of teaching, learning, and cognition in the geosciences. Within this subset of IRIS webinars, we aim to introduce our audience to geoscience education research, provide examples of ongoing studies, and open pathways for collaboration.
This webinar will give a broad overview of the topics and methods in geoscience education research and then discuss recent studies related to geophysics content, instruction, and training of undergraduate and graduate students. Eric Riggs will present on his study investigating the workflow and problem solving approaches of graduate students challenged with interpreting seismic data. He will discuss the differences between key groups in his study, including geologists, geophysicists, and students with varying degrees of experience. Clare Bond will present on the uncertainty in geologic interpretations of seismic data and imagery. She will tell us about what happens when there is no right answer and how we can teach uncertainty in science.
After registering, you will receive a confirmation email containing information about joining the webinar. NOTE: Registration does not confirm or guarantee you will have a spot during the webinar, as we are limited to 100 participants. Webinars are archived for later viewing at https://www.youtube.com/playlist?list=PLD4D607C2FA317E6D
___________________________
Danielle Sumy, PhD
Seismologist
Project Associate
Instrumentation Services
Education and Public Outreach
The IRIS Consortium
1200 New York Ave. NW
Washington, DC 20005
Phone: 202-407-7015
Fax: 202-682-0633
Email: danielle.sumy at iris.edu
www.iris.edu
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From Danielle.Sumy at iris.edu Thu Mar 23 10:08:06 2017
From: Danielle.Sumy at iris.edu (Danielle Sumy)
Date: Thu, 23 Mar 2017 13:08:06 -0400
Subject: [CIG-ALL] TIME CHANGE - IRIS WEBINAR: Geoscience education research
at the post-secondary and professional level - 3/29,
11:00 AM Eastern
In-Reply-To: <473D2B18-01C9-4C85-8EF2-BA0B52F40086@iris.edu>
References: <473D2B18-01C9-4C85-8EF2-BA0B52F40086@iris.edu>
Message-ID:
Please note that the time has shifted from 10:30 AM to 11:00 AM Eastern. We apologize for any inconvenience this may have caused. Thank you!
Please register for Geoscience education research at the post-secondary and professional level on March 29, 2017 11:00 AM EDT at:
https://attendee.gotowebinar.com/register/6991335226038909442
Presenters: Dr. Clare Bond (University of Aberdeen) and Dr. Eric Riggs (Texas A&M University)
Abstract: Geoscience education research is a broad field related to studies of teaching, learning, and cognition in the geosciences. Within this subset of IRIS webinars, we aim to introduce our audience to geoscience education research, provide examples of ongoing studies, and open pathways for collaboration.
This webinar will give a broad overview of the topics and methods in geoscience education research and then discuss recent studies related to geophysics content, instruction, and training of undergraduate and graduate students. Eric Riggs will present on his study investigating the workflow and problem solving approaches of graduate students challenged with interpreting seismic data. He will discuss the differences between key groups in his study, including geologists, geophysicists, and students with varying degrees of experience. Clare Bond will present on the uncertainty in geologic interpretations of seismic data and imagery. She will tell us about what happens when there is no right answer and how we can teach uncertainty in science.
After registering, you will receive a confirmation email containing information about joining the webinar. NOTE: Registration does not confirm or guarantee you will have a spot during the webinar, as we are limited to 100 participants. Webinars are archived for later viewing at https://www.youtube.com/playlist?list=PLD4D607C2FA317E6D
___________________________
Danielle Sumy, PhD
Seismologist
Project Associate
Instrumentation Services
Education and Public Outreach
The IRIS Consortium
1200 New York Ave. NW
Washington, DC 20005
Phone: 202-407-7015
Fax: 202-682-0633
Email: danielle.sumy at iris.edu
www.iris.edu
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From danielle.sumy at iris.edu Wed Mar 29 13:05:37 2017
From: danielle.sumy at iris.edu (Danielle Sumy)
Date: Wed, 29 Mar 2017 16:05:37 -0400
Subject: [CIG-ALL] IRIS WEBINAR: An interdisciplinary approach to
Understanding and Promoting Spatial Learning Processes in the
Geosciences - 4/5, 2 PM Eastern
Message-ID:
Please register for An interdisciplinary approach to Understanding and Promoting Spatial Learning Processes in the Geosciences on April 5, 2017 2:00 PM EDT at:
https://attendee.gotowebinar.com/register/1693511071546274819
Presenters: Thomas Shipley (Temple University), Nicole LaDue (Northern Illinois University), and Mike Brudzinski (Miami University of Ohio)
Abstract: An interdisciplinary network of cognitive psychologists, education researchers, and geoscience educators have come together to identify new spatial learning principles by designing teaching tools that can be applied across classroom and field courses in the geosciences. Supporting the development of spatial thinking in a science curriculum requires an interdisciplinary effort that combines knowledge of the disciplinary science with education and psychology expertise. The network is designed to create a "trading zone" where theory and practice converge so that research on education and cognitive psychology can be influenced by disciplinary geoscience content, and vice versa, to result in new designs for teaching tools and new insights into the working of the human mind-brain.
The network seeks to expand our fundamental understanding of the science of learning by characterizing the different types of spatial reasoning required for the practice of a complex spatial science, and to develop new supports for spatial learning challenges that have been barriers for student learning. Tools developed in this project are designed to allow students to self-correct conceptual errors in their understanding of scientific concepts. The practice of the network will be illustrated with two examples of the application of: 1) Spatial feedback, which is feedback in the form of a spatial error that allows the mind-brain to guide learning, And 2) Spatial accommodation, which is the constructing and reconstructing of mental models to accurately incorporate spatial information to improve inaccurate mental models from spatial feedback.
Geoscientists are required to make sense of information using multiple spatial frames of reference. A complex example may be deciphering the sequence of tectonic events from a complex outcrop. Students make predictable errors from a simple frame of reference problem; when asked to predict where the next volcanic crater will form based on plate motion, students commonly respond with an incorrect answer that is opposite of the correct answer. Similarly, geoscientists must make sense of some complex spatial patterns by visualizing non-rigid transformations. When students are asked to predict the direction and magnitude of motion as reported by GPS around an active fault they make systematic errors, as well.
In the second installment of the IRIS webinar series on Geoscience Education Research, researchers will present a model and suggestions for developing an interdisciplinary network, examples of spatial problems facing students in your classes, and suggestions for classroom practice that can help students overcome spatial challenges.
----
Learn more about the presenters, their collaboration, and the Geoscience Educational Transdisciplinary Spatial Learning Network here: http://serc.carleton.edu/getspatial/index.html
After registering, you will receive a confirmation email containing information about joining the webinar. NOTE: Registration does not confirm or guarantee you will have a spot during the webinar, as we are limited to 100 participants. Webinars are archived for later viewing at https://www.youtube.com/playlist?list=PLD4D607C2FA317E6D
___________________________
Danielle Sumy, PhD
Project Associate, IRIS Consortium
Instrumentation Services
Education and Public Outreach
Phone: 202-682-2220 x168
Email: danielle.sumy at iris.edu
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From baagaard at usgs.gov Fri Mar 31 11:32:50 2017
From: baagaard at usgs.gov (Brad Aagaard)
Date: Fri, 31 Mar 2017 11:32:50 -0700
Subject: [CIG-ALL] PyLith v2.2.0 is now available
Message-ID: <76ccb513-b282-9eb8-aac8-a6e024c5c8b8@usgs.gov>
Greetings,
I am pleased to announce the release of PyLith 2.2.0, a finite-element
code designed to solve dynamic elastic problems and quasi-static
viscoelastic problems in tectonic deformation.
This release provides a few new minor features and bugfixes.
You can download the source code and binaries from
http://geodynamics.org/cig/software/pylith
Detailed installation instructions for the binary packages are in the
User Manual with detailed building instructions for a few platforms in
the INSTALL file bundled with the PyLith Installer utility. We also
offer a Docker image
(https://wiki.geodynamics.org/software:pylith:docker) for running
PyLith within a portable, virtual Linux environment.
======================================================================
MIGRATING FROM VERSION 2.1 TO 2.2
======================================================================
No changes are needed to parameter or other input files. The default
format for pylithinfo output is now JSON.
======================================================================
RELEASE NOTES
======================================================================
* Added a browser-based parameter viewer for interactive viewing of
all PyLith parameters and version information. See Section 4.10
PyLith Parameter Viewer of the PyLith user manual.
* Adjusted packaging of the binary distributions so that they can be
used to extend PyLith and/or integrate other code with
PyLith.
* Converted the user manual from Lyx to LaTeX and added syntax
highlighting of parameter and spatial database files. Fixed several
typos.
* Fixed bug that sometimes resulted in an inconsistent fault
orientation when running in parallel. The bug appears to have been
introduced in v2.0.
* Fixed two bugs in output of solution at points that sometimes
happened in parallel simulations. The errors include:
- The order of the station names does not match the order of the
points. The point data is written in parallel by process order,
so the points for process 0 are written first, then those for
process 1, etc. This often results in reordering of the
points. The station names were written in the original order.
- The output values for some points are incorrect. The wrong cells
were being used in the interpolation.
* Updated PETSc to v3.7.5.
See CHANGES in the top-level source directory for a list of changes
for each prior release.