GAGE/SAGE 2021 Community Science Workshop

Revealing Earth Systems: Integrating Spatial and Temporal Data

This workshop stretches across disciplinary boundaries and focuses on elements that are common to the diverse disciplines and applications within the GAGE & SAGE communities. It highlights synergies between geodesy and seismology in time, space, and methods for approaching datasets and changes in the Earth System. It provides an opportunity to learn about cutting edge research, engage with other members of the community, and expand technical skills.

The workshop will be held virtually. Main days will be Tuesday-Thursday August 17-19, 2021. Short courses will be August 9-13 and a few other activities will be August 16 and 20.

This meeting is the equivalent of the UNAVCO and IRIS Science Workshops, which used to be held separately. The first joint workshop was held in Portland, Oregon in October 2019.

Sponsored by the the US National Science Foundation (NSF). The Geodetic Facility for the Advancement of Geoscience (GAGE) and the Seismological Facility for the Advancement of Geoscience (SAGE) are run by UNAVCO and IRIS, respectively, through cooperative agreements with NSF.


  • June 1 – Registration opens
  • July 1 – Early bird registration and e-lightning poster abstract deadline
  • July 15-25 – E-lightning poster upload period
  • July 25 – Last day for poster upload, refund request, and caregiver stipend request (part of registration process)
  • August 1 – Full meeting website available; short course registration deadline
  • August 9-13 – Short courses
  • Monday August 16 – First-time attendee welcome and early career networking events; international panel on geophysics networking and capacity building in Central & South America
  • Tuesday August 17 – Thursday August 19 – Main Meeting
  • Friday August 20 – International panel on geophysics networking and capacity building in Africa and Asia

Registration Fees

  • Early bird registration (June 1-July 1)
    • $100 regular
    • $30 student
  • Fully price registration (July 2 and later)
    • $130 regular
    • $40 student
  • Short courses (latest day to sign up is August 1)
    • $25 regular ($35 after July 1)
    • $15 student ($20 after July 1)
  • Participants currently at institutions in low and low-middle income countries may request a fee waiver when registration is opened ( We will use the economic definitions given by the World Bank.
  • There is no fee to attend the international capacity building and networking panels, but participants must still register for these free events.

Workshop Goals

  • Foster community among geodetic and seismic researchers, faculty, students, and facility staff,
  • Facilitate geodetic and seismic scientific research by sharing results and planning future endeavors, and
  • Provide a venue for professional development in scientific and technical careers.

Plenary Sessions

Behavior at and coupling across key Earth interfaces

illustration of Earth's interior

This session is aimed at understanding the structure and processes associated with interfaces and boundaries within the Earth system. Examples include the boundary between the solid Earth and its fluid envelopes, the boundary between the solid mantle and the liquid outer core, the land/ocean interface at continental margins, and Earth’s permeable near-surface boundary layer known as the critical zone. It will include contributions that highlight new data sets and observation strategies that target these interfaces, those that reveal new understanding of the processes operating at them, and studies that explore the ways that different regions of the Earth interact and how different components of the Earth system are coupled across interfaces.

Illuminating Transients in Earth Processes

insar data on map

This plenary session focuses on integrative studies of transient deformation and Earth structure. Recent advances in seismic and geodetic monitoring technologies and methods have revealed time-dependent deformation processes and changing constitutive properties in a wide variety of Earth systems. Examples include slow slip on plate-boundary faults, a range of postseismic deformation processes, seasonal and multi-year aquifer changes, and landslide dynamics. These time varying signals can be captured by various geodetic methods, continuous seismic imaging using ambient noise, receiver functions or active source experiments, and repeated electrical resistivity imaging. We seek contributions that combine multiple methods to illuminate transient deformation and changing mechanical properties in the Earth.

New approaches to processing big geophysical and geospatial datasets

map of Alaska and plate vectors

“Big data” is challenging our computational capabilities in terms of volume, velocity and variety (3Vs). Increases in the spatial and temporal resolution of our geophysical observations have produced dramatic increases in the amount of data for geoscientists to analyze. Each stage of the life cycle of geospatial big data can present issues for our community: (1) data acquisition, (2) compilation and management, and (3) data analysis, visualization and distribution. This session seeks to showcase strategies that are overcoming these obstacles and providing new insights into Earth behavior. For instance, machine learning presents a host of new opportunities for our community, with increasing emphasis on technical rigor, common benchmarks, and repeatability. In addition, enhanced understanding can also be achieved via data amalgamation, high-performance computing, data mining, and dataset-integration strategies. Vast datasets also create opportunities for improved statistical characterization and improved quantification of uncertainties. We are particularly interested in highlighting techniques likely to be scalable and transferable to other problems.

Short Courses

Short Courses

Short courses will be held the week before the main workshop – August 9-13. They include seismology, geodesy, and workplace climate options.

  • Geodesy (11 am – 3 pm)
    • GAMIT/GLOBK in 8 Hours
      • Monday August 9 – Tuesday August 10
    • Working with Strainmeter Data
      • Wednesday August 11 – Thursday August 12
    • InSAR Data Interpretation and Analysis for Nonspecialists
      • Thursday August 12 – Friday August 13
  • Seismology (11 am – 3 pm)
    • Retrieving Signals from a Noisy World: How Seismometers Work
      • Monday August 9
    • Introduction to MsPASS:  A New Data Management and Processing Framework for Seismology
      • Tuesday August 10 – Wednesday August 11
    • Introduction to Earthworm and AQMS
      • Thursday August 12
    • Distributed Acoustic Sensing: Scientific Frontiers and Community Needs
      • Friday August 13
  • General (4 – 7 pm)
    • Improving Workplace Climate: Boost Your Satisfaction and Success in Graduate School (STUDENTS-ONLY)
      • Tuesday August 10
    • Improving Workplace Climate: Increasing Inclusionary Behaviors in Your Department (NON-STUDENTS)
      • Wednesday August 11

Workshop Agenda

Day 0 – Monday August 16

  • International Panel on geophysics networking and capacity building in Central & South America
  • First time attendee welcome and orientation
  • Early career networking

Day 1 – Tuesday August 17

Daily schedule will be 11 am-7 pm ET with three 2-hours blocks and 1-hour breaks between. Sessions will include:

  • Opening & Welcome
  • Plenary 1 – Behavior at and coupling across key Earth interfaces
  • Special Interest Group sessions
  • Posters

Day 2 – Wednesday August 18

Daily schedule will be 11 am-7 pm ET with three 2-hours blocks and 1-hour breaks between. Sessions will include:

  • Plenary 2 – Illuminating Transients in Earth Processes
  • Professional Development Mini-courses
  • Community panel and discussion
  • Posters

Day 3 – Thursday August 19

Daily schedule will be 11 am-7 pm ET with three 2-hours blocks and 1-hour breaks between. Sessions will include:

  • Plenary 3 – New approaches to processing big geophysical and geospatial datasets
  • Special Interest Group sessions
  • Posters
  • Community panel/discussion and workshop closing

Friday August 20

  • International Panel on geophysics networking and capacity building in Africa & Asia

Workshop Leadership

Science Planning Committee:

  • Mike Brudzinski, Miami University of Ohio
  • Roland B├╝rgmann, University of California Berkeley
  • Maureen Long, Yale University
  • Wendy Zhou, Colorado School of Mines

UNAVCO/IRIS Planning Contacts:

  • Beth Pratt-Sitaula, UNAVCO
  • John Taber, IRIS

Have questions? Please contact Beth Pratt-Sitaula (prattsitaulaat and John Taber (taberat for more information.



  • Date(s): August 17-19 (short courses August 9-13)
  • Location: Online