1. Heliosphere impact on geospace K. Kauristie, R. Harrison, A
Heliosphere impact on geospace K. Kauristie, R. Harrison, A. Weatherwax, R. Stamper
IPY core project (63) conducted by ICESTAR, IHY and 27 other multinational consortia
Science about coupling phenomena driven by solar activity
Between the different atmospheric layers
Between the magnetosphere and ionosphere
Between the different hemispheres
Data portals combining Arctic and Antarctic ground-based observations and satellite data.
Data availability information from multiple sources
Refined data products

2. Example: Interhemispheric relationships in meso-scale auroras
Global scale auroras are known to be similar, but how about mesoscales (L= km)?
ASC images: The real conjugate point of a station can move hundreds (tens) of km in longitude (latitude) during one hour.
Future challenge: Better understanding of the magnetic conjugacy concept.
Reference: Sato et al., GRL 2005

3. Example: Effects of solar proton events on middle atmospheric chemistry
ENVISAT: Decrease in the stratospheric ozone content after the proton events of the Halloween storm.
Future challenges: Comprehensive modelling for more quantitative understanding. Effects of energetic electron precipitation?
O3 & 46km before solar storm
O3 & 46km 10 days after solar storm
Figure: A. Seppälä, Finnish Meteorological Institute

4. Example Campaign during IPY
Incoherent scatter radars plan to provide continuous observations during the IPY years
The EISCAT Svalbard Radar is planned to be the primary data source. Significant contributions also from Sondrestrom and Resolute Bay
Long homogenous data sets will be important input for modelling and statistical studies addressing coupling processes in different time scales.
Discussions going on about linking Madrigal with virtual observatories digesting data from distributed sources.
Reference: A. van Eyken, 2006