Datasets:

juliensimon
/

forbush-decreases

onset_type int64 0 9	quality float64 2 5 ⌀	solar_source_type float64 -1 40 ⌀	solar_wind_speed_onset_km_s float64 0 3.68k ⌀	solar_wind_speed_max_km_s float64 -99 1.19k ⌀	imf_b_max_nt float64 -99 65.6 ⌀	imf_bz_min_nt float64 -61 999	fd_magnitude_pct float64 0.1 28.1	fd_magnitude_corrected_pct float64 0.2 29.7	fd_min_time_hours float64 -10 47 ⌀	fd_min_depth_pct float64 -7.34 9B	spectral_index_max float64 -99.99 1.13 ⌀	spectral_index_min float64 -99.99 1.05 ⌀	kp_max float64 0.33 9	ap_max float64 -1 400 ⌀	dst_min_nt float64 -589 10k	cme_angle_deg float64 0 359 ⌀	sunspot_number float64 0 503 ⌀	datetime_utc timestamp[us]date 1957-07-02 08:54:00 2016-07-28 09:00:00	cme_datetime_utc timestamp[us]date 1996-11-26 21:35:41 2016-04-10 11:12:05 ⌀	solar_source_datetime_utc timestamp[us]date 1976-03-28 19:12:00 2015-12-28 11:20:00 ⌀
1	null	-1	null	null	null	999	3.6	4.2	21	-0.69	0	null	8	207	-101	null	275	1957-07-02T08:54:00	null	null
1	null	-1	null	null	null	999	3	5.3	10	-0.97	null	null	7.33	154	-92	null	302	1957-07-05T00:42:00	null	null
9	null	-1	null	null	null	999	0.8	1.6	-2	-0.71	null	null	4.67	39	-45	null	320	1957-07-06T20:00:00	null	null
9	null	-1	null	null	null	999	1.9	1.5	-8	-1.21	null	null	2.67	12	-12	null	229	1957-07-09T06:00:00	null	null
9	null	-1	null	null	null	999	1.6	1.8	9	-1.23	null	null	3	15	-12	null	152	1957-07-11T10:00:00	null	null
9	null	-1	null	null	null	999	1.8	1.5	8	-0.78	null	null	2.67	12	-2	null	137	1957-07-13T19:00:00	null	null
1	null	-1	null	null	null	999	1.9	2.2	26	-0.87	null	null	4	27	-26	null	261	1957-07-16T07:12:00	null	null
9	null	-1	null	null	null	999	1.5	1.9	5	-0.6	null	null	4	27	-21	null	309	1957-07-18T13:00:00	null	null
9	null	-1	null	null	null	999	2.8	3.9	13	-0.88	null	null	4.67	39	-55	null	316	1957-07-19T15:00:00	null	null
1	null	-1	null	null	null	999	1.6	3	3	-0.67	null	null	5.67	67	-30	null	361	1957-07-22T04:18:00	null	null
9	null	-1	null	null	null	999	1.3	2.4	42	-0.93	null	null	4	27	6	null	292	1957-07-26T04:00:00	null	null
1	null	-1	null	null	null	999	2.4	2.3	11	-0.93	null	null	4	27	21	null	245	1957-07-27T20:00:00	null	null
9	null	-1	null	null	null	999	2	3.6	7	-0.85	null	null	3.67	22	-20	null	201	1957-07-29T01:00:00	null	null
9	null	-1	null	null	null	999	0.7	1.1	2	-0.53	null	null	3	15	-7	null	204	1957-08-01T22:00:00	null	null
1	null	-1	null	null	null	999	7.6	9.2	45	-0.69	null	null	6.33	94	-39	null	229	1957-08-03T15:54:00	null	null
1	null	-1	null	null	null	999	2.2	2.5	-5	-0.29	null	null	5.67	67	-45	null	231	1957-08-06T05:06:00	null	null
1	null	-1	null	null	null	999	0.7	1.3	-10	-0.24	null	null	4.67	39	-8	null	171	1957-08-09T13:48:00	null	null
9	null	-1	null	null	null	999	2	1.7	14	-0.36	null	null	2.33	9	-8	null	126	1957-08-10T16:00:00	null	null
9	null	-1	null	null	null	999	1	2.1	-10	-0.38	null	null	5.67	67	-56	null	164	1957-08-12T04:00:00	null	null
9	null	-1	null	null	null	999	1.4	2.6	1	-0.57	null	null	3.67	22	-43	null	191	1957-08-14T01:00:00	null	null
9	null	-1	null	null	null	999	1.5	2.8	-10	-0.51	null	null	4	27	-17	null	278	1957-08-18T12:00:00	null	null
9	null	-1	null	null	null	999	1.5	1.7	47	-0.82	null	null	5.33	56	-33	null	241	1957-08-20T06:00:00	null	null
9	null	-1	null	null	null	999	2.4	1.6	17	-0.82	null	null	1.67	6	-25	null	195	1957-08-21T20:00:00	null	null
9	null	-1	null	null	null	999	1	1.1	11	-0.37	null	null	1.33	5	8	null	153	1957-08-23T13:00:00	null	null
9	null	-1	null	null	null	999	2.2	2.2	38	-0.51	null	null	3	15	-7	null	156	1957-08-24T23:00:00	null	null
9	null	-1	null	null	null	999	3.1	3.2	43	-0.47	null	null	4	27	-9	null	232	1957-08-26T21:00:00	null	null
1	null	-1	null	null	null	999	12.42	13.4	25	-3.42	null	null	6.67	111	-75	null	334	1957-08-29T19:18:00	null	null
1	null	-1	null	null	null	999	2.2	2.4	0	-0.85	null	null	7	132	-54	null	370	1957-08-31T18:12:00	null	null
1	null	-1	null	null	null	999	4.1	8.4	17	-1	null	null	7.67	179	-162	null	319	1957-09-02T03:12:00	null	null
9	null	-1	null	null	null	999	1.9	5.5	0	-1.27	null	null	8.67	300	-179	null	269	1957-09-03T06:00:00	null	null
1	null	-1	null	null	null	999	2.4	9.6	9	-1	null	null	9	400	-324	null	245	1957-09-04T13:00:00	null	null
9	null	-1	null	null	null	999	2	1.7	33	-0.8	null	null	5.67	67	-105	null	227	1957-09-06T19:00:00	null	null
9	null	-1	null	null	null	999	0.6	1.3	-10	-0.61	null	null	3.67	22	-39	null	244	1957-09-08T22:00:00	null	null
9	null	-1	null	null	null	999	3.2	7.3	0	-1.65	null	null	2.67	12	-33	null	340	1957-09-10T17:00:00	null	null
1	null	-1	null	null	null	999	3.7	7.5	0	-1.65	null	null	8.67	300	-427	null	357	1957-09-13T00:42:00	null	null
9	null	-1	null	null	null	999	1.2	1.5	4	-0.49	null	null	5.33	94	-130	null	355	1957-09-14T21:00:00	null	null
9	null	-1	null	null	null	999	1.9	1.2	2	-0.38	null	null	4.67	39	-47	null	357	1957-09-16T02:00:00	null	null
9	null	-1	null	null	null	999	2.5	2.5	-2	-0.5	null	null	3.67	22	-22	null	365	1957-09-17T12:00:00	null	null
1	null	-1	null	null	null	999	3.8	7	13	-1.31	null	null	8	154	-165	null	473	1957-09-21T10:00:00	null	null
1	null	-1	null	null	null	999	3.7	6.1	4	-2.18	null	null	8.33	236	-173	null	428	1957-09-22T13:42:00	null	null
1	null	-1	null	null	null	999	2.1	7.5	0	-1.31	null	null	8.67	300	-303	null	379	1957-09-23T02:30:00	null	null
9	null	-1	null	null	null	999	2	1.4	-7	-0.54	null	null	4.67	39	-65	null	331	1957-09-25T08:00:00	null	null
9	null	-1	null	null	null	999	1.4	2.2	7	-0.51	null	null	3.67	22	-39	null	320	1957-09-27T21:00:00	null	null
1	null	-1	null	null	null	999	6.1	11.8	25	-1.36	null	null	8.67	300	-246	null	343	1957-09-29T00:12:00	null	null
9	null	-1	null	null	null	999	1	3.8	-7	-0.53	null	null	4.67	39	-67	null	334	1957-10-01T08:00:00	null	null
9	null	-1	null	null	null	999	1.5	1.6	-10	-0.5	null	null	4.67	39	-33	null	343	1957-10-03T12:00:00	null	null
9	null	-1	null	null	null	999	1.8	1.9	1	-0.74	null	null	3	15	-24	null	310	1957-10-05T03:00:00	null	null
9	null	-1	null	null	null	999	1.7	2.2	1	-0.55	null	null	2.33	9	-8	null	346	1957-10-08T01:00:00	null	null
9	null	-1	null	null	null	999	2	2.4	43	-0.44	null	null	4.33	32	-59	null	374	1957-10-10T00:00:00	null	null
9	null	-1	null	null	null	999	0.8	1.6	null	-0.4	null	null	6.33	56	-67	null	334	1957-10-12T23:00:00	null	null
1	null	-1	null	null	null	999	1.2	1.6	14	-0.64	null	null	6.33	94	-88	null	329	1957-10-14T04:36:00	null	null
9	null	-1	null	null	null	999	2.1	2.1	23	-0.79	null	null	3	15	-9	null	379	1957-10-16T22:00:00	null	null
9	null	-1	null	null	null	999	13	13.1	0	-2.79	null	null	6.67	111	-60	null	326	1957-10-20T12:00:00	null	null
1	null	-1	null	null	null	999	11.8	11.6	38	-2.55	null	null	6.67	111	-60	null	336	1957-10-21T22:36:00	null	null
9	null	-1	null	null	null	999	2.3	1.6	-10	-0.54	null	null	3.67	22	-13	null	391	1957-10-24T20:00:00	null	null
9	null	-1	null	null	null	999	1.8	2.8	-10	-0.52	null	null	4	27	-28	null	396	1957-10-27T16:00:00	null	null
9	null	-1	null	null	null	999	1.3	4.7	20	-0.66	null	null	4.67	39	-42	null	473	1957-10-29T22:00:00	null	null
9	null	-1	null	null	null	999	1.4	1.6	8	-0.51	null	null	3.33	18	-29	null	354	1957-11-02T20:00:00	null	null
9	null	-1	null	null	null	999	1.3	1.5	3	-0.64	null	null	1.67	6	-14	null	303	1957-11-04T07:00:00	null	null
9	null	-1	null	null	null	999	1	1	10	-0.61	null	null	2.67	7	9	null	285	1957-11-05T20:00:00	null	null
1	null	-1	null	null	null	999	1.5	4.3	10	-0.91	null	null	7	132	-121	null	258	1957-11-06T18:18:00	null	null
9	null	-1	null	null	null	999	2.1	2.4	45	-0.63	null	null	5	48	-65	null	224	1957-11-08T06:00:00	null	null
9	null	-1	null	null	null	999	1.9	1.4	-8	-0.45	null	null	4	27	-47	null	329	1957-11-11T01:00:00	null	null
9	null	-1	null	null	null	999	1.6	1.8	39	-0.41	null	null	4	27	-25	null	313	1957-11-13T19:00:00	null	null
9	null	-1	null	null	null	999	1.1	1.1	11	-0.29	null	null	4	27	-19	null	251	1957-11-15T20:00:00	null	null
9	null	-1	null	null	null	999	1.5	2.2	44	-0.65	null	null	4.67	39	-67	null	256	1957-11-17T11:00:00	null	null
9	null	-1	null	null	null	999	5.1	5.6	44	-1.15	null	null	3.33	18	-1	null	372	1957-11-22T08:00:00	null	null
1	null	-1	null	null	null	999	6.6	9.8	20	-1.53	null	null	6.67	111	-122	null	282	1957-11-26T01:54:00	null	null
9	null	-1	null	null	null	999	1.9	2.2	4	-0.36	null	null	4.67	27	-59	null	304	1957-11-29T02:00:00	null	null
1	null	-1	null	null	null	999	1.7	2.6	null	-0.43	null	null	5.67	67	-35	null	326	1957-12-01T03:36:00	null	null
9	null	-1	null	null	null	999	1.1	1.2	null	-0.61	null	null	3.67	22	-27	null	326	1957-12-03T14:00:00	null	null
9	null	-1	null	null	null	999	2.1	1.3	2	-0.61	null	null	4.67	39	-57	null	344	1957-12-04T18:00:00	null	null
9	null	-1	null	null	null	999	0.9	1.1	45	-0.5	null	null	4.67	39	-41	null	269	1957-12-07T08:00:00	null	null
9	null	-1	null	null	null	999	1.6	2.7	16	-0.5	null	null	5.67	67	-55	null	215	1957-12-09T13:00:00	null	null
9	null	-1	null	null	null	999	0.9	1.7	-8	-0.47	null	null	5	48	-37	null	222	1957-12-12T20:00:00	null	null
9	null	-1	null	null	null	999	1	1.3	26	-0.47	null	null	4.67	39	-25	null	236	1957-12-14T09:00:00	null	null
9	null	-1	null	null	null	999	4.1	4.7	41	-0.67	null	null	4.67	39	-31	null	265	1957-12-16T21:00:00	null	null
1	null	-1	null	null	null	999	5.8	6.9	20	-1.57	null	null	4.67	39	-46	null	353	1957-12-19T09:36:00	null	null
9	null	-1	null	null	null	999	2.6	2.5	23	-0.55	null	null	4.67	39	-40	null	402	1957-12-20T22:00:00	null	null
9	null	-1	null	null	null	999	1.4	2.6	2	-0.68	null	null	1.33	5	-10	null	447	1957-12-22T17:00:00	null	null
9	null	-1	null	null	null	999	3.5	4.7	30	-0.74	null	null	3.67	22	-23	null	503	1957-12-24T01:00:00	null	null
9	null	-1	null	null	null	999	2.6	2.6	42	-0.38	null	null	2.33	9	-19	null	389	1957-12-27T20:00:00	null	null
9	null	-1	null	null	null	999	1.9	6.7	39	-2.84	null	null	6.33	94	-130	null	388	1957-12-30T07:00:00	null	null
9	null	-1	null	null	null	999	1.8	2.5	1	-0.54	null	null	6.33	94	-130	null	303	1958-01-01T14:00:00	null	null
9	null	-1	null	null	null	999	1.4	1.3	16	-0.31	null	null	2	4	-29	null	283	1958-01-03T14:00:00	null	null
9	null	-1	null	null	null	999	1.3	1.4	10	-0.5	null	null	3	15	-19	null	307	1958-01-04T23:00:00	null	null
9	null	-1	null	null	null	999	2.1	2.1	-10	-0.52	null	null	4	27	-26	null	329	1958-01-09T22:00:00	null	null
9	null	-1	null	null	null	999	0.7	1.6	-8	-0.23	null	null	4.67	39	-46	null	395	1958-01-14T10:00:00	null	null
9	null	-1	null	null	null	999	2.2	2.4	24	-0.46	null	null	3.67	22	-28	null	394	1958-01-16T07:00:00	null	null
9	null	-1	null	null	null	999	2.8	3.8	27	-0.74	null	null	5	48	-72	null	350	1958-01-17T17:00:00	null	null
9	null	-1	null	null	null	999	1.9	2.9	9	-0.47	null	null	6.67	111	-72	null	269	1958-01-20T15:00:00	null	null
9	null	-1	null	null	null	999	1.4	1.5	20	-0.3	null	null	4.67	39	-47	null	245	1958-01-22T05:00:00	null	null
1	null	-1	null	null	null	999	2.8	2.2	-7	-0.31	null	null	5	48	-52	null	194	1958-01-25T10:48:00	null	null
9	null	-1	null	null	null	999	1.4	1.4	-10	-0.41	null	null	4.33	32	-21	null	239	1958-01-27T20:00:00	null	null
9	null	-1	null	null	null	999	1	7	21	-0.44	null	null	3.33	18	-15	null	184	1958-01-29T23:00:00	null	null
1	null	-1	null	null	null	999	2.1	2.6	-4	-0.39	null	null	4.67	39	-40	null	204	1958-02-04T13:06:00	null	null
9	null	-1	null	null	null	999	2.1	3.2	33	-0.33	null	null	4.67	39	-42	null	256	1958-02-08T00:00:00	null	null
1	null	-1	null	null	null	999	5.2	14	3	-3.23	null	null	9	400	-426	null	242	1958-02-11T01:24:00	null	null
9	null	-1	null	null	null	999	2.1	2.4	8	-0.5	null	null	6	80	-113	null	251	1958-02-12T10:00:00	null	null
1	null	-1	null	null	null	999	2.1	1.1	7	-0.33	null	null	5	48	-44	null	210	1958-02-16T16:36:00	null	null

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Forbush Decrease Events (IZMIRAN FEID)

Aurora borealis blankets the Earth, seen from the ISS

Credit: NASA

Part of a dataset collection on Hugging Face.

Dataset description

A comprehensive catalog of Forbush decrease events from the IZMIRAN FEID (Forbush Effects and Interplanetary Disturbances) database. Each event includes solar wind parameters, interplanetary magnetic field measurements, Forbush decrease magnitudes, geomagnetic indices, and associated CME data.

A Forbush decrease is a rapid reduction in the galactic cosmic ray intensity observed at Earth, caused by the passage of an interplanetary coronal mass ejection (ICME) or co-rotating interaction region (CIR) through the heliosphere. The enhanced magnetic field within these structures acts as a shield, temporarily deflecting galactic cosmic rays away from the inner solar system. Typical decreases range from 1-10% of the ambient cosmic ray flux, with the largest events exceeding 15%.

Forbush decreases are measured by the worldwide network of ground-based neutron monitors at ~10 GV rigidity. The FEID catalog cross-references each cosmic ray decrease with its solar source (flare, CME), the interplanetary disturbance parameters (solar wind speed, IMF magnitude, Bz component), and the geomagnetic response (Kp, Ap, Dst indices). This multi-parameter approach makes the FEID one of the most richly annotated Forbush decrease catalogs available.

These events are important for: (1) understanding cosmic ray modulation by solar activity, (2) forecasting radiation environment changes relevant to aviation and spaceflight, and (3) studying the propagation and geo-effectiveness of CMEs and ICMEs through the heliosphere.

This dataset is suitable for tabular regression, time-series forecasting tasks.

Schema

Column	Type	Description	Sample	Null %
`onset_type`	int64	Onset type code: 1=shock+SSC (sudden storm commencement), 2=interplanetary shock without SSC, 3=weak SSC, 9=no shock detected; characterizes how the interplanetary disturbance arrived at Earth	1	0.0%
`quality`	float64	Data quality rating from 1 (poor) to 5 (excellent); reflects the clarity of the Forbush decrease signature in neutron monitor data and the completeness of associated measurements	3.0	82.1%
`solar_source_type`	float64	Solar source type code identifying the kind of solar event (flare, filament eruption, etc.) that produced the interplanetary disturbance	-1.0	1.1%
`solar_wind_speed_onset_km_s`	float64	Solar wind bulk speed at the onset of the Forbush decrease (km/s); typical quiet values ~400 km/s, disturbed values 500-1000+ km/s	232.0	90.7%
`solar_wind_speed_mean_km_s`	float64	Mean solar wind speed during the Forbush decrease event (km/s); averaged over the decrease and early recovery phase	0.0	0.0%
`solar_wind_speed_max_km_s`	float64	Maximum solar wind speed recorded during the event (km/s); peaks often coincide with the passage of the ICME sheath or ejecta	612.0	29.9%
`imf_b_max_nt`	float64	Maximum interplanetary magnetic field magnitude during the event (nT); enhanced B inside ICMEs is the primary cause of cosmic ray shielding	15.2	29.3%
`imf_bz_min_nt`	float64	Minimum IMF Bz component during the event (nT, GSM coordinates); large negative Bz drives geomagnetic storms via dayside reconnection	999.0	0.0%
`fd_magnitude_pct`	float64	Forbush decrease magnitude at 10 GV rigidity (%), measuring the peak reduction in galactic cosmic ray intensity; typical values 1-10%, extreme events >15%	3.6	0.0%
`fd_magnitude_corrected_pct`	float64	Magnetosphere-corrected Forbush decrease magnitude (%); removes the contribution of geomagnetic cutoff changes to isolate the interplanetary modulation	4.2	0.0%
`fd_min_time_hours`	float64	Time from onset to minimum cosmic ray flux (hours); characterizes the speed of the decrease phase, typically 6-24 hours	21.0	2.5%
`fd_min_depth_pct`	float64	Minimum depth of cosmic ray decrease (%); the deepest point of the Forbush decrease profile	-0.69	0.0%
`spectral_index_max`	float64	Maximum spectral index (gamma) of the Forbush decrease; describes the rigidity dependence of the cosmic ray modulation during the decrease phase	0.0	61.1%
`spectral_index_min`	float64	Minimum spectral index during the recovery phase; the rigidity spectrum typically softens as cosmic rays recover	0.0	39.2%
`kp_max`	float64	Maximum Kp geomagnetic index during the event (0-9 scale); Kp >= 5 indicates a geomagnetic storm, often concurrent with large Forbush decreases	8.0	0.0%
`ap_max`	float64	Maximum Ap geomagnetic index during the event; linearized version of Kp providing a more physical measure of geomagnetic disturbance	207.0	3.3%
`dst_min_nt`	float64	Minimum Dst index during the event (nT); Dst < -50 nT indicates a geomagnetic storm, < -100 nT an intense storm; measures ring current enhancement	-101.0	0.0%
`cme_width_deg`	float64	Angular width of the associated CME (degrees); halo CMEs (360 deg) are most likely to impact Earth and produce large Forbush decreases	0.0	1.1%
`cme_angle_deg`	float64	Position angle of the associated CME (degrees from solar north); indicates the direction of initial CME propagation in the plane of the sky	270.0	94.5%
`ground_level_enhancement`	float64	Ground-level enhancement (GLE) flag; values >0 indicate that this Forbush decrease coincided with a GLE — a rare event where solar energetic particles are detected at ground level	0.0	0.0%
`sunspot_number`	float64	Daily international sunspot number at the time of the event; proxy for overall solar activity level, correlates with Forbush decrease frequency over the solar cycle	275.0	1.0%
`datetime_utc`	datetime64[us]	Event onset time in UTC, constructed from the IZMIRAN Date and Time fields; marks the beginning of the cosmic ray intensity decrease as observed by the neutron monitor network	1957-07-02 08:54:00	0.0%
`cme_datetime_utc`	datetime64[us]	UTC timestamp of the associated coronal mass ejection (CME) as observed by coronagraphs (typically SOHO/LASCO); null if no CME association was identified	1996-11-26 21:35:41	90.8%
`solar_source_datetime_utc`	datetime64[us]	UTC timestamp of the identified solar source event (flare or eruption) that produced the interplanetary disturbance causing this Forbush decrease	1976-03-28 19:12:00	85.9%

Quick stats

7,097 Forbush decrease events (1957--2016)
Median FD magnitude: 1.0%, maximum: 28.1%
656 events with associated CME data
7097 events with Dst index measurements
91 events coinciding with ground-level enhancements (GLEs)

Usage

from datasets import load_dataset

ds = load_dataset("juliensimon/forbush-decreases", split="train")
df = ds.to_pandas()

from datasets import load_dataset

ds = load_dataset("juliensimon/forbush-decreases", split="train")
df = ds.to_pandas()

# FD magnitude distribution
import matplotlib.pyplot as plt
df["fd_magnitude_pct"].dropna().hist(bins=50)
plt.xlabel("Forbush Decrease Magnitude (%)")
plt.ylabel("Count")
plt.title("Distribution of Forbush Decrease Magnitudes")
plt.show()

# FD magnitude vs solar wind speed
valid = df.dropna(subset=["fd_magnitude_pct", "solar_wind_speed_max_km_s"])
plt.scatter(valid["solar_wind_speed_max_km_s"], valid["fd_magnitude_pct"], alpha=0.3, s=10)
plt.xlabel("Max Solar Wind Speed (km/s)")
plt.ylabel("FD Magnitude (%)")
plt.title("Forbush Decrease vs Solar Wind Speed")
plt.show()

# Annual event count (tracks solar cycle)
df["year"] = df["datetime_utc"].dt.year
df.groupby("year").size().plot(kind="bar", figsize=(14, 4))
plt.ylabel("Events per year")
plt.title("Forbush Decrease Events by Year")
plt.show()

Data source

http://spaceweather.izmiran.ru/eng/dbs.html

Related datasets

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About the author

Created by Julien Simon — AI Operating Partner at Fortino Capital. Part of the Space Datasets collection.

Citation

@dataset{forbush_decreases,
  title = {Forbush Decrease Events (IZMIRAN FEID)},
  author = {juliensimon},
  year = {2026},
  url = {https://huggingface.co/datasets/juliensimon/forbush-decreases},
  publisher = {Hugging Face}
}

License

CC-BY-4.0

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Collection

Solar flares, CMEs, geomagnetic storms, Kp/Ap/Dst/AE indices, F10.7, sunspot numbers, solar wind, and NOAA alerts. Updated daily. • 22 items • Updated 13 days ago