5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F About ESL Level 2 Processing and Data Products Some Selected Science Results Plasma depletion seen in different parameters Multi-Point observation of Equatorial plasma irregularities SIFM: Swarm Initial Field Model The Future … Almost 2 years of Swarm operations: From data to first scientific results – the ESL Perspective Nils Olsen and the Swarm ESLTeam

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Swarm Data Processing Hierarchy L2 Processor L1b Processor SW-A L0 L1b L2 scientific users

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F ESL: How to get the best Swarm data L2 Processor L1b Processor (Operational Processor) SW-A SCARF L2 Processing Facility L0 L1b L2 scientific users L1b Processor (Prototype Processor) ESL instrument provider

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F ESL: An International Swarm Effort 10 European institutes 3 oversea partners Tasks: Level 1b processor improvement Level 2 data processing (SCARF) 2 new partners LUH

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Swarm Level-2 Data Products Example: MCO from Dedicated Inversion Chain Filename: SW_OPER_MCO_SHAi2D_ T000000_ T000000_0101.DBL # Swarm L2 DCO Core field model# Snap-shots derived from order-isog spline models # There are isog-2 snap-shots per node-interval, # plus one at each node i.e. every isog-1 snap-shots# correspond to a spline node. # Dates are given in Years.fraction# Gauss coefficient format is F15.6 # # First non-comment line is describing the table: # N_min n_max N_times spline_order N_step(=spline_order-1) Validity.start Validity.end # Second non-comment line is listing the dates in Years.fraction # More on Core and Lithospheric L2 Products in ”Presentation and validation of the DLFI L2 product” by E. Thebault et al. “The DCO model, other models – and input data: results and challenges” by M. Rother et al. “New version of Comprehensive Inversion Chain L2 product” by T. Sabaka et al. More on Core and Lithospheric L2 Products in ”Presentation and validation of the DLFI L2 product” by E. Thebault et al. “The DCO model, other models – and input data: results and challenges” by M. Rother et al. “New version of Comprehensive Inversion Chain L2 product” by T. Sabaka et al.

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Swarm Level-2 Data Products

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Electrical Conductivity of Earth’s Mantle 1D mantle conductivity models L2 products MIN_1DM Two Level-2 chains: Time Domain (TD) chain Frequency Domain (FD) chain Determination of 3D mantle conductivity structure requires a few more years of Swarm data More in ”Swarm mantle conductivity model: On the consistency of the magnetospheric field product” by Jakub Velimsky

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Swarm Level-2 Data Products

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Swarm Level-2 Data Products nT Ionospheric Daily Variations (”Sq”) Product MIO_SHA_2_ Magnetic Field due to primary (ionospheric) and secondary (Earth-induced) currents More in ”Presentation and validation of the DIFI L2 product” by Arnaud Chulliat et al. “New version of Comprehensive Inversion Chain L2 product” by T. Sabaka et al. More in ”Presentation and validation of the DIFI L2 product” by Arnaud Chulliat et al. “New version of Comprehensive Inversion Chain L2 product” by T. Sabaka et al.

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Swarm Level-2 Data Products

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Neutral Densities Courtesy: P. Visser / TUD Session 2AG: ACC and GPSR measurements (Tuesday)

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Level-2 Data Products “Cat-2 Products”: Level-2 products with minimum delay, e.g. for space weather applications. Near real-time capability. Provided as daily files in CDF. Algorithms designed by ESL, data processed by PDGS

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Release of Level-2 Data Products Already available Soon …

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Swarm Orbit Counter: AUXxORBCNT A ”Hidden” Product? Example: Orbit Counter for Swarm Alpha Filename: SW_OPER_AUXAORBCNT_ T000000_ T000000_0001.TXT %orbit MJD2000 date UT phi_AN Source :21: :56: :30: :05: :40: :14: :49: :23: :58: :33: :07: :42: :16: :51: :26: :00: Information on Orbit number, and of UT and longitude of equator crossing (of ascending node) Available at ESRIN ftp–server./Auxiliary/Sat_A/AUXAORBCNT/

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Special Section of Geophys. Res. Lett.: ESA's Swarm Mission, One Year in Space 16 papers published Majority of papers on external field investigations (mainly event studies)

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Three Selected Science Results … Plasma depletion seen in different parameters Multi-Point observation of Equatorial plasma irregularities SIFM: Swarm Initial Field Model

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Swarm Data TECxTMS_2F EFIx_PL_1B MAGx_LR_1B IBIxTMS_2F FACxTMS_2F Plasma depletion seen in different parameters 11 October 2014, 16:06 UT, 22 LT 85 deg E longitude Courtesy: C. Stolle / GFZ

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Swarm Data TECxTMS_2F EFIx_PL_1B MAGx_LR_1B IBIxTMS_2F FACxTMS_2F Plasma depletion seen in different parameters 11 October 2014, 16:06 UT, 22 LT 85 deg E longitude Courtesy: C. Stolle / GFZ

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Swarm Data TECxTMS_2F EFIx_PL_1B MAGx_LR_1B IBIxTMS_2F FACxTMS_2F Plasma depletion seen in different parameters 11 October 2014, 16:06 UT, 22 LT 85 deg E longitude Courtesy: C. Stolle / GFZ

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Swarm Data TECxTMS_2F EFIx_PL_1B MAGx_LR_1B IBIxTMS_2F FACxTMS_2F Plasma depletion seen in different parameters 11 October 2014, 16:06 UT, 22 LT 85 deg E longitude Courtesy: C. Stolle / GFZ

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Plasma depletion seen in different parameters 11 October 2014, 16:06 UT, 22 LT 85 deg E longitude Courtesy: C. Stolle / GFZ Swarm Data TECxTMS_2F EFIx_PL_1B MAGx_LR_1B IBIxTMS_2F FACxTMS_2F

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F C/NOFS Swarm Bravo Swarm Alpha Swarm Charlie Courtesy: C. Stolle / GFZ Multi-Point observation of Equatorial plasma irregularities 1. Jan. 2014, 02:15 – 03:18 UT Plasma density anomaly

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Multi-Point observation of Equatorial plasma irregularities C/NOFS Swarm Bravo Swarm Alpha Swarm Charlie Courtesy: C. Stolle / GFZ 1. Jan. 2014, 02:15 – 03:18 UT Plasma density anomaly

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F SIFM+: Swarm Initial Field Model 21 months vector and scalar data, 16 months constellation data E-W scalar and vector difference (“gradient”) data: SW-A – SW-C both satellites at same latitude and < 50 secs apart in time N-S scalar and vector difference (“gradient”) data: along-track first differences for each satellite SW-A, SW-B, SW-C Core field up to Spherical harmonic degree n = 13, crustal field up to n = 80 Co-estimation of instrument alignment parameters (Euler angles)

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F SIFM+: Model using Vector Gradient Data SIFM no gradient : no gradient data SIFM: with scalar gradient data no vector gradient data SIFM+: with scalar gradient data with vector gradient data Model from 2 years of CHAMP satellite data at 320 km altitude (100 x higher crustal field power at n=90) Degree correlation  n

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Extension of ESL? Possible future tasks L2 Processor L1b Processor (Operational Processor) SW-A SCARF L2 Processing Facility L0 L1b L2 scientific users L1b Processor (Prototype Processor) ESL instrument provider ESL extension Additional partners, new products, more science Closer contact to user community (”helpdesk”?) Extended L1b processing (use of constellation aspect) … ? ?

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Recently: two new ESL Partners Leibniz University of Hannover / Germany Jakob Flury (Institute of Geodesy) ACC data correction and characterisation: Correction of “fast” disturbances (steps, spikes …) Temperature correction Analysis of disturbances University of Calgary / Canada Eric Donovan (Auroral Imaging Group) “Swarm and Aurora” “ … development of tools, methodologies and applications sufficient to facilitate scientific studies of aurora and related phenomena that use … the Swarm in situ data”

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Special Issue in Earth, Planets Space: Swarm Science Results after two years in Space “… solicits contributions reporting results from the mission and dealing with data analyses and Earth science applications. Investigations of the Earth’s magnetic and gravity fields, their sources and of the way these interact with the Earth’s environment, are expected. Combination and synergies of Swarm with other satellites like Ørsted, CHAMP, GOCE, CLUSTER as well as ground data, targeting on providing a comprehensive description of the Earth system are particularly welcome.” Deadline for submission of manuscript: 31 December 2015 Guest editors: Nils Olsen Claudia Stolle Rune Floberghagen Gauthier Hulot Interested? Please contribute … and inform us

5 th Swarm Data Quality Workshop 7 – 10 September 2015IPG Paris/F Conclusions 21 months of high quality magnetic Level-1b data, including 16 months from constellation Misfit statistics to derived geomagnetic models (e.g. SIFM+) confirm Swarm as “the best ever survey of the Earth’s magnetic field” Swarm capabilities cover research topics spanning from the Earth’s core to the magnetosphere, including “Space weather and climate” Ideas for making a good mission even better Inter-satellite (“differential”) calibration New data products …