2.2.6 spase://CDPP/NumericalData/AMDA/Indices/Ground_Based/ground-based-asy asy/sym Longitudinally asymmetric and symmetric horizontal component disturbances 2018-06-22T10:48:29Z DataProducer spase://SMWG/Repository/CDPP/AMDA Online Open AMDA at CDPP http://amda.cdpp.eu Text WDC Kyoto via ISGI/UNISTRA spase://CDPP/Instrument/AMDA/Indices/Ground_Based MagneticField 1981-01-01T00:00:00Z 2017-10-31T23:59:00Z PT1M Earth.NearSurface.EquatorialRegion asy asy nT 3 asy-h 1 asy(0) asy-d 2 asy(1) sym sym nT 3 sym-h 1 sym(0) sym-d 2 sym(1)