Release notes
Product R.128
Version 1.0
New product released.
Version 2.0: 16/1/2019
The model data has been re-calculated using an improved version of the model, which is built upon an expanded event list using a more sophisticated modelling methodology. The event list now includes sub-GLEs and GLEs observed between November 1973 and December 2017 (94 events), whereas the event list of the previous version of R.128 included only GLEs observed between 1956 and 2016 (48 events). The updated model treats the parameters of the event fluence spectra as model variables, thus always providing a physical spectrum, in contrast to the previous version, where the fluences in each energy channel were modeled separately. The user interface of the product remains unchanged.
Version 3.0: 7/10/2021
The product has now an API available that can deliver the same results as the GUI as csv files. The product documentation provides a more detailed description of the latest version.
Version 4.0: 6/10/2022
The model data has been re-calculated using updated GLE fluence spectra and a slightly revised event list, now including sub-GLEs and GLEs observed during the full solar cycles 21-24 (March 1976 - December 2019). The sub-GLE-spectra remain unchanged. Because of the changed functional representation of the GLE spectra, the modelling is now performed using the JPL
-methodology, i.e., modelling the fluences separately in each energy channel. The user interface of the product remains unchanged.
Product R.129
Version 1.0
New product released.
Version 2.0: 16/1/2019
The upgraded version of the model has been re-calculated using a new event list and new modelling methodology. The new event criterion takes into account both the moving average and standard deviation of the flux data, and all energy channels now share the same event list. The event occurrence is now modelled as a Poisson process, instead of the log-logistic process of the previous version. The background flux substraction in the upgrade version is also more accurate, and the peak flux distributions are modelled using cut-off power law distributions instead of truncated power law distributions. The results in the upgraded version are given at interpolated, logarithmically spaced energies (405 MeV, 500 MeV and 620 MeV). The last change is also reflected in the user interface, which remains otherwise unchanged.
Version 2.1: 1/10/2020
The event list has been slightly revised. The SEP events of May, 1990, and Oct-Nov, 1992, have now been included in the flux distributions. They were previously included in the timing analysis, but excluded from the flux analysis because of data issues, which have now been solved.
Version 3.0: 7/10/2021
The product has now an API available that can deliver the same results as the GUI as csv files. The product documentation provides a more detailed description of the latest version.
Product R.130
Version 1.0
New product released.
Version 1.1: 1/10/2018
- The event list was extended to cover the year 2017 (events 176-180).
- The ending year for 154 was corrected as 2014 (from 2013, a typing error).
- Flare locations were amended for the following events: 117, 126, 129 (previously listed as "N/A"), 142, 156.
- Electron event peak intensities were amended for the following events: 25, 39, 45, 51, 73, 76, 81, 85, 88, 95, 111, 114, 116, 118, 129, 130, 133, 135, 138, 149, 158, 161, 163, 164.
- Oxygen fluences and Fe/O ratios, as well as the corresponding plots, were redone for all events due to errors discovered and rectified in the source data.
- Proton fluences, as well as the corresponding plots, were redone for events 153 through 175 due to a minor issue discovered and rectified in the program code used to calculate them.
Version 1.2: 1/10/2020
A new ERNE dataset, correcting for saturation using the SOHO/EPHIN instrument, was employed in the proton flux and fluence calculations.
- All event maximum intensities were revisited for the 55-80 MeV proton energy channel by calculating a sliding 1-hour average and taking the maximum of this sliding average as the event global maximum intensity. (Note that while this analysis was performed for all events using corrected data, for the majority of the listed events the results would be essentially the same if uncorrected data had been used instead.) For 16 events (3, 65, 66, 73, 80, 81, 87, 97, 98, 101, 108, 133, 147, 149, 178, 179), the old peak intensity estimate or the "N/A" notation was retained pending further analysis.
- >10 MeV proton fluence was recalculated using a correction factor derived from EPHIN data for the ERNE proton data for the following events: 35, 38, 40--46, 48--55, 58, 59, 70, 72, 75, 78, 86, 88, 90, 95, 99, 102, 112, 132, 134, 150, 154, 156. For events 38, 58, 72, 88, 90, 102, and 156, data gaps and/or intensity fluctuations yielded questionable results; the fluences for these events are reported as "N/A".
- The event overview (file name ERNE_protons_xxx.png; xxx = event listing number), the proton and electron intensities with GOES X-ray intensity and X-ray intensity time derivative (EM_xpe_xxx.png), and proton fluence spectrum (ERNE_p_fl_xxx.png) plots for the events listed above were redrawn using the corrected ERNE proton intensity data.
Version 2.0: 7/4/2022
- In the fluence calculation, the ERNE proton intensity background was computed from the time period between 13 and 1 hour before listed event onset. In cases where the event of interest commenced before the previous event had ended or substantial data gaps or other issues had occurred during this time, a period of similar length, preceding the event and most closely corresponding to the pre-event background intensity, was used.
- The proton fluence analysis was re-performed for all events with ERNE proton intensity data (the saturation correction was applied, in addition to the events listed in Version 1.2, to events 30, 63-65, 73, 80, 87, 101, 108, 133, 148, 177, 178, and 179). Starting with 1-minute background-subtracted differential intensity data, data gaps were interpolated over using a linear fit to the logarithms of the neighboring good data points. The differential fluences of ERNE at energies 54–110 MeV were corrected for temperature response and converted to integral channels. The final tabulated results were obtained from the resulting spectrum by interpolation to >10 MeV, >30 MeV, and >100 MeV.
- Proton data from the SEPEM RDS set v. 3.0 were included in the fluence analysis, with event fluences derived for the integral energy channels of >10 MeV, >30 MeV, >100 MeV, and >300 MeV. The tabulated value in the catalogue is the higher of the two available fluence values (ERNE or SEPEM RDS) in each overlapping energy range. For >300 MeV, the SEPEM RDS results are used exclusively.
- All proton fluence plots were redrawn to show both the ERNE (at >10 MeV, >30 MeV, and >100 MeV) and the SEPEM results (at >10 MeV, >30 MeV, >100 MeV, and >300 MeV). The cases where the proton fluence was impossible to calculate or the results considered unreliable due to very large data gaps or other issues are marked as "N/A".
- Saturation problems in ERNE heavy ion data were corrected using SEPEM RDS helium data.
- Differential background subtracted oxygen fluences were calculated and plotted at five logarithmic energy ranges between 3.125 MeV/n and 100 MeV/n.
- Integral background-subtracted oxygen fluences, as well as iron to oxygen ratios, were calculated and tabulated at 5-15 MeV/n and 50-100 MeV/n.
Version 2.1: 9/3/2023
- Twelve events were added to the catalogues to bring it up to date until 31/3/2022.
- ERNE data was used without the saturation correction (EPHIN) and GOES SGPS data was used instead of SEPEM RDS for the high proton energies.
Product R.138
Version 1.0: 28/5/2019
New product released.
Version 2.0: 7/10/2021
The product has now an API available that can deliver the same results as the GUI as csv files. The product documentation provides a more detailed description of the latest version.
Product R.165
Version 1.0: 11/7/2023
New product released.
Product R.166
Version 1.0: 11/7/2023
New product released.