Hans Gleisner Research scientist Geomagnetism & Space Physics Program Danish Meteorological Institute

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RESEARCH PROJECTS     ...................................................................................................................................     The DMI Geomagnetic Forecast Service     A geomagnetic forecast service is currently under development at DMI. The project is co-     funded by the European Space Agency ESA within the ESA Space Weather Pilot Project,     with the aim to provide forecasts of geomagnetic activity hours to days ahead at mid- and     high northern latitudes. Check out the latest medium-range forecasts on the GAFS web     page.     ...................................................................................................................................       Sun and climate  -  the atmosphere's response to the 11-year solar cycle     After removal of volcanic and El Nino signals from meteorological reanalysis data, we     find a pronounced response to the solar cycle -- the tropics and the mid-latitudes are     being heated during solar maximum, and this heating is accompanied by a moistening     of the troposphere and a modulation of the global scale circulation systems. All major     climatic variables - temperature, geopotential structure, humidity, static stability, and     atmospheric motions - show statistically significant responses.          We now begin to discern the atmospheric processes responding to solar activity. This     will hopefully shed some light on the question of how an energetically weak solar forcing     could have a substantial impact in the dense lower atmosphere. More information on     these findings can be found at the Sun-climate research page.      ...................................................................................................................................     Forecasts of geomagnetic indices     Forecasts of geomagnetic indices describing the state of the magnetosphere are now     available at the Regional Warning Center-Sweden, hosted by the Swedish Institute of     Space Physics (IRF) in Lund. The Center provides hourly forecasts of the ring-current     index Dst and the auroral-electrojet index AE.     ...................................................................................................................................

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updated June 1, 2005