IRENE Space Radiation Modelling and Data Analysis Workshop 2019

Session

Modelling of the Radiation Belts and Plasma near Earth

30 May 2019, 12:00

Sykia, Peloponnese, Greece

54. Simulating nearly 3 solar cycles in the electron radiation belts

Sarah Glauert (British Antarctic Survey)

30/05/2019, 12:00

Physics-based models of the radiation belts can provide time-dependent simulations of the high-energy electron flux, taking into account processes such as radial transport, wave-particle interactions, collisions with the atmosphere and losses to the magnetopause. To successfully reproduce observations, the simulations require appropriate boundary conditions and accurate descriptions of each of...

77. Long term reanalysis of the radiation belt and ring current electrons

Prof. Yuri Shprits (GFZ/UCLA)

30/05/2019, 12:20

Data assimilation is a term used to describe various algorithms that help reconstruct the global state of evolution of the system from observations contaminated by noise. The most commo technique for the sequential data assimilation is called Kalman fileter ( Kalman 1960) produces sequential updates for the model forecasts using data. In this process the predictions of the physics based model...

83. Data assimilation technique applied to radiation belts and re-analysis data base

Angélica SICARD-PIET (ONERA)

30/05/2019, 12:40

Ensemble Kalman filter based on the Salammbô code has been developed for years at ONERA. Model and data uncertainties are introduced in the filtering method so that uncertainties on the restitution are also available.

Re-analysis data based have been produced from the data assimilation tool and from the Salammbô code. Results will be presented and their uses in specification model development...

53. Solar Cycle Variations of Low Altitude Protons

Mr Stuart Huston (Confluence Analytics, Inc.)

30/05/2019, 14:15

Solar cycle variations of low altitude protons are implicitly contained in the IRENE flux maps. However, IRENE users have requested an explicit solar cycle variation. Inclusion of such a model will require modifications to the IRENE data processing, flux maps, and software. We have developed simple models of the solar cycle variation based on the Selesnick Inner Zone Proton model (SIZM) and on...

79. A New Proton Low Altitude Radiation Belt (LARB) Model

Dr Daniel Heynderickx

30/05/2019, 14:35

Under the ESA project Radiation Environment at Extremely Low Latitude and Altitude (RENELLA, ESA Contract No 4000118058/16/NL/LF/hh), a new trapped model has been built for the low altitude region (<1,000 km).

The model flux maps are based on data from the S3-3/PT, AZUR/EI-88, CRRES/PROTEL, SAMPEX/PET and RBSP/REPT/RPS datasets. In addition, PROBA1/SREM data are used to validate the flux maps...

61. Detailed Validation of the IRENE Models and Assessment of Their Impact for Spacecraft Environment Predictions

Dr Pete Truscott

30/05/2019, 14:55

The ESA VALIRENE Project is evaluating the performance of the IRENE models (v1.50.001) against proton and electron data from a number of different instruments, including those flown on INTEGRAL, PROBA-1, CRRES, XMM, and RBSP-A. To support this, an extensive reanalysis of the original data from these instruments has been undertaken to ensure well-calibrated, clean data are used for the...

71. AE9/AP9-IRENE Plasma Model: Future Development Plans and Needs

Dr Paul O'Brien (Aerospace Corporation), Dr Tim Guild, Dr William Johnston (AFRL), Mr Stuart Huston, Dr Y.-J. Su, Dr C. J. Roth, Dr Richard Quinn, Dr J. charron

30/05/2019, 15:15

First released in 2012 and most recently updated in Version 1.55, the AE9/AP9-IRENE (International Radiation Environment Near Earth) model suite includes a standard plasma model (SPM), which extends the environmental specification from the traditional radiation energies of AE8/AP8 down to 1 keV for protons and electrons, while also adding helium and oxygen plasmas. As the IRENE suite evolves...

67. AE9/AP9-IRENE Radiation Environment Model: Future Development Plans and Needs

Dr Paul O'Brien (Aerospace Corporation)

30/05/2019, 15:30

First released in 2012 and most recently updated in Version 1.55, the AE9/AP9-IRENE (International Radiation Environment Near Earth) model suite provides the satellite design community with climatological specification of the near-Earth particle radiation environment for design and mission planning. The model is maintained with periodic releases improving both specification (via new or...

51. Lessons from RBSP/HOPE data Investigations

David Rodgers (ESA)

30/05/2019, 16:20

Surface charging of spacecraft in geostationary orbit is a familiar problem that continues to cause failures and operational difficulties to geostationary spacecraft. Spacecraft in other orbits within the magnetosphere beyond the plasmasphere, e.g. in global navigation orbits or in transit to geostationary orbit via electric orbit raising, experience a plasma environment qualitatively similar...

56. Data assimilation of electron radiation belts

Prof. Yoshizumi Miyoshi (ISEE, Nagoya University)

30/05/2019, 16:40

The dynamical evolution of the outer belts should be a delicate balance among several processes. In order to discriminate what physical processes are dominant for the large flux enhancement of the outer belt electrons, we have developed the data assimilation code on the outer belt electrons. In our data assimilation, the particle filter and the particle smoother are used for the assimilation,...

74. Discussion

30/05/2019, 17:00