Task Group Report: Ionosphere-Thermosphere Torsten Neubert Danish National Space Center
Thermosphere – Ionosphere Task group status The international Ionosphere-Thermosphere-Mesosphere (ITM) science community is very active CAWSES Ground based observations Limited opportunity for ITM space missions Emne | 5. januar 2005 | ILWS – Uppsala 12-06-2007 | side 2
ILWS – related missions Emne | 5. januar 2005 | ILWS – Uppsala 12-06-2007 | side 3
SWARM SWARM Three satellites in low-Earth, polar orbit Main science objective is magnetometry The mission is at the end of phase B, launch expected in 2011 Instruments: High-precision vector and scalar magnetometers (Denmark/France) Accelerometers (Slovakia?) Ion drift probes (Canada) We failed to get energetic particle spectrometers accepted The mission can do some ILWS-related science – but we missed the opportunity to do much more. Emne | 5. januar 2005 | ILWS – Uppsala 12-06-2007 | side 4
New ITM mission opportunities: ASIM ASIM – The Atmosphere-Space Interactions Monitor ASIM is for the International Space Station (altitude ~400km; inclination ~51.6o) Main science objective is studies of thunderstorms and electrical discharges The mission is in Phase B Instrumentation: 6 TV-frame rate imagers 2 nadir (337nm; 650-800nm) 4 limb (337nm, 391.4nm, 650-800nm; 762nm) 6 photometers 2 nadir (337nm, 650-800nm) 4 limb (337nm, 391.4nm, 650-800nm; 237nm) one X-ray monitor nadir 10-500 keV !! Resources available for additional ILWS-related instrumentation !! Emne | 5. januar 2005 | ILWS – Uppsala 12-06-2007 | side 5
Proposed ASIM add-ons Energetic Particle Telescope (EPT) Protons: 4 MeV – 200 MeV Electrons: 0.2 – 10 MeV Proposed by: Cyamukungu et al., Center for Space Radiations, Louvain-la-Neuve, Belgium Sprite Imaging and Chemistry (SPICY) Imaging grating spectrometer (240-350nm; 420-450nm; 1200-1500nm) Builds on SCHIAMACY heritage (Envisat), and GOME satellite Proposed by Weber et al., Institute of Environmental Physics, University of Bremen, Germany The proposed instruments would allow studies of energetic particle precipitation and associated modifications to atmospheric chemistry. Funding must be identified by the end of ASIM phase B Both countries are partners in the International Space Station collaboration Emne | 5. januar 2005 | ILWS – Uppsala 12-06-2007 | side 6