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Welcome to the Community for the Unified Study
of Interhemispheric Asymmetries
Realizing the inclusion of interhemispheric asymmetries in geospace system science
Modern science doesn’t fully understand the nature of interhemispheric asymmetries
Space weather affects our planet differently in the northern and southern hemispheres
Contemporary theory and modeling tools can’t help us understand why… Yet
That’s where we come in
CUSIA is an inclusive place for the geospace community to connect, collaborate, and develop open resources to advance our understanding of interhemispheric asymmetries.
Join our pioneering community to build a network of interhemispheric asymmetry knowledge across geospace, develop new leaders and innovators, and cultivate opportunities to share transformative ideas.
Reality Vs. Simulation
Comparing what we see to what models can simulate
Interhemispheric asymmetries require broad system level understanding and CUSIA’s Capabilities Assessment Matrix (CAM ) enables us to do so. The CAM compares a range of scientific observations to modeling capabilities of current state-of-the-art global and coupled models (none of which can properly account for Earth’s interhemispheric asymmetries). Mapping our current understanding and modeling capabilities of interhemispheric asymmetries, the CAM provides our community the ability to quickly and confidently identify, prioritize, and pivot our efforts to address our most pressing scientific questions.
Explore topics and leave comments to expand the knowledge base of the CAM
Example CAM post
IMF By Component
Intrinsic Source of Asymmetry
Relative Importance of Asymmetry – Primary
Causes: Dipole Tilt, IMF By
Modeling Capability:
All global MHD models can include IMF By in the solar wind time series that drive the code. Many aspects of asymmetry produced by IMF By, such as shear in the Birkeland current patterns and asymmetric potential distributions, are captured to some extent by the global codes. However, inner magnetosphere codes that depend on the polar ionosphere current use only the northern hemisphere solution.
BATS-R-US MHD
IMF By included in input to MHD code
LFM MHD
IMF By included in input to MHD code
OpenGGCM MHD
IMF By included in input to MHD code
GUMICS MH
IMF By included in input to MHD code
Additional Resources
Open access to all of the code, math, and papers we’ve been writing
