ngdc_ssc

Parameters
name: hec_id
datatype: int ucd: meta.record
xtype: utype:
description: Event identification number (HEC internal number)
name: time_start
datatype: char ucd: time.start
xtype: iso8601 utype: helio:time_period.time_start
description: Begin time for sudden storm commencement.
name: nstn_a
datatype: float ucd: meta.number
xtype: utype: helio:magnetic_storm.number_stations_a
description: Number of stations reporting an A event. Letter A -- denotes very remarkable event observed.
name: nstn_b
datatype: float ucd: meta.number
xtype: utype: helio:magnetic_storm.number_stations_b
description: Number of stations reporting a B event. Letter B -- denotes fair, ordinary, but unmistakable event observed.
name: nstn_c
datatype: float ucd: meta.number
xtype: utype: helio:magnetic_storm.number_stations_c
description: Number of stations reporting a C event. Letter C -- denotes very poor, doubtful event observed.
name: nsi
datatype: float ucd: meta.number
xtype: utype: helio:magnetic_storm.number_stations_si
description: Number of stations reporting an "si" event. Letters "si" -- sudden impulse event (sudden magnetic change which could not be classified as ssc (sudden storm commencement), bs, etc.)

Extracted from VOTable generated by HEC HQI on:   07-Sep-17 18:38:09