2020 Workshop:Geospace Response During WHPI

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Geospace Responses During the Whole Heliosphere and Planetary Interactions (WHPI) Periods

Location, Date/Time and Duration

2 hours


Liying Qian
Ryan McGranaghan

Workshop Categories

Altitudes: IT - Latitudes: global - Other:

Format of the Workshop

Short Presentations

Estimated attendance


Requested Specific Days

We request a time slot during Monday to Wednesday since some attendees will need to leave later in the week to attend AOGs.

Special technology requests


The Whole Heliosphere and Planetary Interactions (WHPI) is an international initiative focused around the solar minimum period that aims to understand the interconnected sun-heliospheric-planetary system. The simpler magnetic configuration and infrequency of Coronal Mass Ejections (CMEs) makes solar minimum an ideal time to follow how the solar magnetic and radiative output propagates through the heliosphere and affects the Earth and planets' atmospheres and magnetospheres. WHPI consists three campaign periods: (1) “recurrent coronal holes/high speed solar wind streams” Mar 12 – Apr 8 2019, Carrington Rotation 2215; (2) “total solar eclipse campaign” Jun 29 – Jul 26 2019, Carrington Rotation 2219; (3) “Parker Solar Probe 4th Perihelion campaign” Jan 15 – Feb 11, 2020”. Coordinated observations were conducted for the Sun, the heliosphere, and the geospace, from both ground-based observatories and space missions, producing exciting and capable data sets and challenges to utilize them. A CEDAR workshop facilitates and encourages observers and modelers to get together to discuss, compare, and combine research results using data obtained during WHPI campaign periods, as well as other related data. This workshop directly addresses CEDAR strategic thrust #1: Encourage and Undertake a Systems Perspective to Geospace; strategic thrust #2: Explore Exchange Processes at Interfaces and Boundaries; strategic thrust #3: Explore Processes Related to Geospace Evolution; strategic thrust #4: Develop Observational and Instrumentation Strategies for Geospace System Studies; and strategic thrust #6: Manage, Mine, and Manipulate Geoscience Data and Models. where observers and modelers get together to discuss, compare, and combine research results.


This workshop focuses on geospace responses from both data analysis and model simulations related to the three WHPI campaign periods; comparisons of the current minimum with previous solar minima and investigations into the effect of periods of extremely low solar activity on geospace. We also welcome presentations regarding innovative approaches to collecting, managing, analyzing, and communicating data from these campaigns.

Workshop Summary

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