Geomagnetic and Ionospheric data from the Swarm Mission for the ESA s SSA SWE Service Network N. Kervalishvili, Claudia Stolle, Jan Rauberg, Jürgen Matzka, Stefanie Weege, and Mirjam Langhans GFZ German Research Centre For Geosciences, Potsdam, Germany Nils Olsen and Susanne Vennerstrøm DTU Space, Kongens Lyngby, Denmark Magnar Gullikstad Johnsen and Chris Hall Tromsø Geophysical Observatory (TGO), Tromsø, Norway ESWW14, 27 Nov 1 Dec 2017, Ostend, Belgium
Swarm Mission ESA s first constellation mission for Earth Observation (EO) operated by ESA's European Space Operations Centre (ESOC in Germany) via the primary ground station in Kiruna (Sweden) consists of the three identical satellites (A, B, and C), which were launched on 22 November 2013 into a near-polar orbit final constellation of the mission was achieved on 17 April 2014. Lower pair (Swarm A and C) flying side by side at about 470 km altitude, Swarm B at about 520 km altitude Copyright: ESA/ATG Medialab Ø ESA Member States approved (172 nd meeting on 15-16 Nov 2017) Swarm extension until the end of 2021 Ø Swarm celebrated its 4 th anniversary in space: 22 Now 2017 More information about Swarm mission can be found at https://earth.esa.int/web/guest/missions/esa-operational-eo-missions/swarm Kervalishvili ESWW14, 27 Nov 1 Dec 2017, Ostend, Belgium Page 2 of 15
Swarm Payload Flight Direction Ø Absolut Scalar Magnetometer (ASM) Ø Vector Field Magnetometer (VFM) Ø Accelerometer (ACC) Ø GPS Receiver (GPSR) and Laser Reflector Ø Electric Field Instrument (EFI) Ø Star Tracker (STR) Kervalishvili ESWW14, 27 Nov 1 Dec 2017, Ostend, Belgium Page 3 of 15
Swarm also a Space Weather Mission Ø Swarm provides key observables of space weather: precise magnetic field variations, ionospheric plasma drift, electron density, thermospheric density, GPS-derived total electron content, and ionospheric currents and irregularities Ø Recommendations from 4 th Swarm Science Meeting (March 2017): We unanimously recommend that ESA... supports science topics that are beyond the initial Swarm mission objectives, including space physics and space weather research,... investigates opportunities for near real-time data provision for space weather applications Ø Swarm Utilisation Analysis (SUA) project evaluates the space weather capabilities of the Swarm mission and will be of highest relevance for other, as well as for the future Low Earth orbiting (LEO) missions with similar instrumentation Ø SUA Consortium: Nine European institutions Kervalishvili ESWW14, 27 Nov 1 Dec 2017, Ostend, Belgium Page 4 of 15
SSA SWE SUA Ø SUA is a project of the ESA s SSA SWE framework: P2-SWE-XVI-SUA Ø Candidate products for SSA SWE Nine existing Swarm data products Eleven new Swarm data product ideas Ø Five existing Swarm and two new products (based on Swarm data) are currently implemented into the ESA s SSA SWE portal: Swarm TEC - Total Electron Content Swarm Ne - Electron Density Swarm IBI - Ionospheric Bubble Index Swarm FAC - Field-Aligned Current Swarm MAG - Vector Magnetic Field Swarm ROT - Rate Of change of TEC Swarm PEJ - Polar Electrojet Ø Within the SUA study two new Swam products ROT and PEJ have been developed by GFZ and DTU Space, respectively Kervalishvili ESWW14, 27 Nov 1 Dec 2017, Ostend, Belgium Page 5 of 15
SSA SWE SUA Ø SSA SWE Expert Service Centres (ESCs) ESC Solar Weather ESC Space Radiation ESC Ionospheric Weather ESC Geomagnetic Conditions SUA ESC Heliospheric Weather Ø Swarm SWE products can be accessed through the following web pages (SSO authentication): http://swe.ssa.esa.int/ionospheric-weather http://swe.ssa.esa.int/geomagnetic-conditions http://swe.gfz-potsdam.de Ø SUA ESC Geomagnetic Conditions products Ø SUA ESC Ionospheric Weather products Kervalishvili ESWW14, 27 Nov 1 Dec 2017, Ostend, Belgium Page 6 of 15
SSA SWE SUA Ø http://swe.ssa.esa.int/web/guest/gfz-sua-federated Kervalishvili ESWW14, 27 Nov 1 Dec 2017, Ostend, Belgium Page 7 of 15
SSA SWE SUA Ø SSA SWE SUA Prototype Service Processing chain Swarm Kervalishvili ESWW14, 27 Nov 1 Dec 2017, Ostend, Belgium Page 8 of 15
Swarm Orbit Distribution 1 Day q 24 h q 45 min Kervalishvili ESWW14, 27 Nov 1 Dec 2017, Ostend, Belgium Page 9 of 15
Space Weather Related Swarm Activities Outside SSA SWE Ø The ESA EO-funded Swarm DISC consortium with a project office at DTU Space: identifies implements, produces and dissimilates new scientific products for enhancing the scientific return of the Swarm mission Ø The first Swarm DISC round for new products and services in the time frame from 2017 to 2018: relevant for Space Weather applications Auroral Electrojet and auroral Boundaries estimated from Swarm observations (Swarm-AEBS) Climatological model of the polar ionospheric current systems Ionospheric Plasma IRregularities and fluctuations based on Swarm data (IPIR) More information about these and other activities can be found at http://www.space.dtu.dk/english/research/projects/project-descriptions/swarm/swarm_disc_itts and https://earth.esa.int/web/guest/missions/esa-eo-missions/swarm/activities/scientific-projects Kervalishvili ESWW14, 27 Nov 1 Dec 2017, Ostend, Belgium Page 10 of 15
SSA SWE Kp Index Ø SSA SWE Expert Service Centres (ESCs) ESC Solar Weather ESC Space Radiation ESC Ionospheric Weather ESC Geomagnetic Conditions ESC Heliospheric Weather Kervalishvili ESWW14, 27 Nov 1 Dec 2017, Ostend, Belgium Page 11 of 15
Global Kp Index Geomagnetic disturbances Ø Monitored by ground-based magnetic observatories recording the three magnetic field components K è Ks è Kp Local K, Ks indices Ø The maximum value of the disturbance levels in the horizontal field components Ø Observed at 13 selected, subauroral stations Ø Standardized Ks index for each station Global Kp index Ø Kp is the average of a number of Kpstations Ks values Kervalishvili ESWW14, 27 Nov 1 Dec 2017, Ostend, Belgium Page 12 of 15
Global Kp Index Global Kp index Ø Kp is the average of a number of Kpstations Ks values: Kp = 1 11 Ø 11 original Kp-stations: BFE+UPS and CNB+EYR are combined 11 i=1 Ks i More information about Kp index can be found at https://www.gfz-potsdam.de/en/section/geomagnetism/data-products-services/kp-index/ Kervalishvili ESWW14, 27 Nov 1 Dec 2017, Ostend, Belgium Page 13 of 15
Nowcast Kp Index Nowcast Kp Index Ø Taking into account all available data: at 13 selected subauroral stations Ø Levels of geomagnetic activity: Green low Yellow intermediate Red high Ø How it could look today: e.g. at about 12:12 pm Kervalishvili ESWW14, 27 Nov 1 Dec 2017, Ostend, Belgium Page 14 of 15
EGU General Assembly 2018 ST4 Space Weather and Space Climate Abstract submission: Ø http://meetingorganizer.copernicus.org/egu2018/session/27200 The abstract submission deadline is 10 January 2018, 13:00 CET Thank you very much! Kervalishvili ESWW14, 27 Nov 1 Dec 2017, Ostend, Belgium Page 15 of 15