UAF researcher to lead four-year project to revolutionize seismology

Rod Boyce
907-474-7185
Sept. 3, 2021

A seismic station sits on a rocky ridge with large ice- and snow-covered mountains in the distance on a sunny day.
Photo by Jeremy Miner, 色视频下载 Transportable Array photo archive
Seismic station TA.O28M sits on Mount Upton, in Canada's Yukon. Seismic stations, often remote, continuously record the subtle motion of the ground as well as the not-subtle ground motion during earthquakes.

A project to unite seismic data analysis and modeling with supercomputing power may help answer some of the biggest questions about the Earth色视频下载檚 seismic activity. 

A University of 色视频下载 Fairbanks Geophysical Institute researcher will lead the four-year, multi-institution project. The Seismic Computational Platform for Empowering Discovery, or SCOPED, project involves five universities: UAF, University of Washington, Columbia University, University of Texas and the Colorado School of Mines. 

UAF associate professor of geophysics Carl Tape is the principal investigator on the $3.2 million project, funded through the National Science Foundation色视频下载檚 Office of Advanced Cyberinfrastructure.

色视频下载淐ertain problems in seismology, such as imaging the Earth's interior, depend on having a large amount of data from recording seismic waves at the surface,色视频下载 said Tape, who is also affiliated with the UAF College of Natural Science and Mathematics. 色视频下载淚n order to make use of the data, we have to be able to correctly understand and model it.色视频下载

Seismic waves can reveal information about the material of the Earth through which they are passing. The waves have many sources: natural events such as earthquakes, volcanic eruptions and avalanches, for example, and human-caused events such as nuclear explosions. 

A man points to colorful imagery on a large digital display screen.
Photo by Daniel Walker, UAF Geophysical Institute
The Geophysical Institute色视频下载檚 Carl Tape talks about a small earthquake that occurred in the Anchorage area on Monday, Aug. 31, 2021.

Analyzing all the data from those waves requires the use of high-performance computing, or supercomputing. 

色视频下载淭o provide the most accurate information possible about what's underneath the surface of our Earth, whether it's an active fault or an oil and gas reservoir, for example, we need to use the most sophisticated computational tools,色视频下载 he said.

Some of that computing will involve use of UAF色视频下载檚 Chinook high-performance computing cluster and machines at the Texas Advanced Computing Center at the University of Texas. Some of the work will occur in the cloud, which is the use of remote servers to store data and provide other computing services.

The project aims to serve research in four interconnected and data-heavy areas: seismic imaging of Earth色视频下载檚 interior, waveform simulation of earthquakes and Earth structure, monitoring of Earth structure using ambient noise, and precision monitoring of earthquakes and faults. 

SCOPED ultimately could provide scientists with essential information as they continue looking for detailed answers to questions such as these:

色视频下载 How did Earth色视频下载檚 continental crust evolve over millions of years?
色视频下载 How do Earth色视频下载檚 subsurface structures change and evolve over seconds to weeks?
色视频下载 What are the dynamics of volcanic systems, especially leading up to eruptions?
色视频下载 What controls the occurrence of earthquakes?

Multiple large black computers form a hallway-like passage in a room.
Photo by Zachary Locklear, UAF Geophysical Institute
This high-performance computing cluster at the University of 色视频下载 Fairbanks contains stacks of thousands of machines. These machines can analyze large volumes of data and also support physics-based simulations such as seismic wave propagation.

The project will establish a database of existing raw seismic data and research-grade data products for seismologists and will provide universal access through a gateway that makes the data usable without regard to the user色视频下载檚 computer platform.

色视频下载淲e're not creating any data. We're not even creating any software, but we're pulling things together in a way that people can do new science and empower discovery with these tools,色视频下载 Tape said.

The project is the culmination of a recognition a decade ago that the science of seismology couldn色视频下载檛 advance without exploiting newly available computing power. The problem was the subject of a two-day workshop in 2012 attended by Tape and others and hosted by Lawrence Livermore National Laboratory.

色视频下载淲e're not going to make the steps forward that we need in the field without large organized efforts,色视频下载 Tape said. 色视频下载淵ou can be successful at archiving data, and you can be successful at code development, but how can we bring these two things together? How can we use these modeling capabilities, together with these large datasets, to say something valuable about the physics of earthquakes or the structure of the Earth?色视频下载

A map of Southcentral 色视频下载 reveals seismic waves as multicolored stripes.
Image by Carl Tape, UAF Geophysical Institute
A snapshot of a 2016 computer simulation of an earthquake shows the complex interaction between seismic waves and the geological structures of Southcentral 色视频下载. A video of the simulation is available at https://youtu.be/KdiETNfyaUo.

Others involved in SCOPED include Ebru Bozdag at the Colorado School of Mines, Marine Denolle at the University of Washington, Felix Waldhauser at Columbia University and Ian Wang at the Texas Advanced Computing Center at the University of Texas.

ADDITIONAL CONTACT: Carl Tape, University of 色视频下载 Fairbanks Geophysical Institute, 907-474-5456, ctape@alaska.edu 

NOTE TO EDITORS: Photographs and images are available at .