G1- ISWAT Cluster: �Geomagnetic Environment

Status and Plans

Bob Robinson

The Catholic University of America

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Outline of the planned G1 Cluster Review Paper�Table of Contents

1. Introduction
2. Understanding the Geomagnetic Response to CMEs
3. Auroral Precipitation and High Latitude Electrodynamics 
4. Modeling of the Geomagnetic Environment
5. GMDs, GICs, and Geoelectric Fields
6. Conclusions--Summary of actions

G1 Action Teams and G1 Review Paper Organization

• Solar wind driving
• Geospace coupling
• Coupled models of the geomagnetic environment
• Space weather impacts of geomagnetic disturbances

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• G1-01: Geoelectric field and GIC modelling
• G1-02: Mid-to-Low-Latitude Space Weather Effects
• G1-03: Auroral Precipitation and High Latitude Electrodynamics
• G1-04: MHD models of the geomagnetic environment and their capability to reproduce small scale GIC source processes
• G1-05: Understanding the Geomagnetic Response to CMEs
• G1-06: Geospace Scoreboard
• G1-07: Beyond the Continuum: Bridging Kinetic & MHD Models

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General Themes

• New observations and advanced modeling are allowing us to re-visualize long standing pictures of how the solar wind, magnetosphere, ionosphere and thermosphere are connected, and how solar wind energy is transferred, modified, and dissipated.
• New understanding is allowing us to break free from potential misconceptions originating from prior terminology and nomenclature that may have constrained and biased our perceptions.
• Current and future work will focus on energy flow, coupling processes, feedback mechanisms and disentangling temporal and spatial variations (in particular explaining bursts and spikes).

Addressing G1 Science Requires Integrative Activities

• International—Coordination of global research
• Domains—Solar wind, magnetosphere, ionosphere, thermosphere, solid earth
• Multiscale—Geospace to microphysical
• Methodologies—Observations, data analysis, assimilative models, physics-based models, machine learning
• Technology Readiness—Fundamental understanding to impacts on technical systems
• Geographic—High latitudes to mid- and low-latitudes
• Communities—COSPAR, CEDAR, GEM, NASA Drive Centers, etc.

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G1=Geomagnetic Disturbance Integrative Space Weather Action Team

G1 Geomagnetic Disturbances Session Plan�

Recommendations for ISWAT Roadmap Identified in the G1 Overview Paper

Table 1: Key Gaps in Our Understanding of the Physical Processes That Create Hazardous Geomagnetic Disturbances and Associated Effects on Infrastructure

Table 2: Modeling Activities Needed to Understand and Predict Geomagnetic Disturbances and Their Impacts on Technology

Table 3: Key Observational Activities Needed to Understand and Predict Geomagnetic Disturbances and Their Impacts on Technology