'type' - Type of empirical scenario (i.e. 'Historical','Past' or 'Virtual')
'betev'- between-event terms (δBe – log10 units) corresponding to PGA and pseudo spectral acceleration in [cm/s2] for periods T = 0.5, 1.0, and 2.0 s
'loc2loc'- location-to-location corrections (δL2Lsource – log10 units) corresponding to PGA and pseudo spectral acceleration in [cm/s2] for periods T = 0.5, 1.0, and 2.0 s for the specific cluster
'map_site' - site-to-site corrections (δS2S – log10 units) corresponding to PGA and pseudo spectral acceleration in [cm/s2] for periods T = 0.5, 1.0, and 2.0 s at each node of the spatial grid (63001 nodes)
'map_path' - path-to-path corrections (δP2P – log10 units) corresponding to PGA and pseudo spectral acceleration in [cm/s2] for periods T = 0.5, 1.0, and 2.0 s at each node of the spatial grid (63001 nodes)
'map_dir' - directivity empirical correction (δD2D – log10 units) corresponding to PGA and pseudo spectral acceleration in [cm/s2] for periods T = 0.5, 1.0, and 2.0 s
'map'- median ground shaking corresponding to peak ground acceleration (PGA, cm/s2), and pseudo spectral acceleration in [cm/s2] for periods T = 0.5, 1.0, and 2.0 s at each node of the spatial grid (63001 nodes)
'gmm_ref' - median ground shaking of the ground motion model at the reference rock sites for peak ground acceleration (PGA, cm/s2), and pseudo spectral acceleration in [cm/s2] for periods T = 0.5, 1.0, and 2.0 s
'var' - total uncertainty of the estimates of peak ground acceleration (PGA, cm/s2), and pseudo spectral acceleration in [cm/s2] for periods T = 0.5, 1.0, and 2.0 s at each node of the spatial grid (63001 nodes)
'periods' - vibration periods [s] considered for spectral response
'var_beta_PP' - uncertainty associated with the numerical interpolation of the path-to-path corrections (δP2P – log10 units) for peak ground acceleration (PGA, cm/s2), and pseudo spectral acceleration in [cm/s2] for periods T = 0.5, 1.0, and 2.0 s at each node of the spatial grid (63001 nodes)
'var_beta_SS' - uncertainty associated with the numerical interpolation of the site-to-site corrections (δS2S – log10 units) for peak ground acceleration (PGA, cm/s2), and pseudo spectral acceleration in [cm/s2] for periods T = 0.5, 1.0, and 2.0 s at each node of the spatial grid (63001 nodes)
'var_sigma0' - uncertainty of the event-, site-, source- and path- corrected terms dW0 (log10 units)
'var_tauL'  - uncertainty of the location-to-location corrections δL2Lsource (log10 units)
'var_tauE' - uncertainty of the between-event terms δBe (log10 units)
'var_phiS' -  uncertainty of the site-to-site terms at the reference sites δS2S_ref (log10 units)
'var_phiP' -  uncertainty of the path-to-path terms δP2P (log10 units)
'station' - station metadata with subfields:
    {'stations_coord'} latitude and longitude (deg) of the recording/virtual stations
    {'net_sta_loc'   } network-station-location code associated to the real recording station according to 
the International Federation of Seismograph Network (http://www.fdsn.org) or a generic alphanumeric code in case of virtual stations
'eventID' - identification ID of the scenario's earthquake
'timestamp' - digital record of the date of scenario's elaboration (date format YYMMDDHHMMSS as GMT) 
'gridUTM' - UTM coordinates of the grid nodes [m]
'source' - source metadata with subfields:
	{'mag'           } Moment magnitude of the scenario
    {'epi_coord'     } latitude and longitude (deg) of epicenter
    {'fault_vertices'} latitude and longitude (deg) of (in the same order): upper left corner (UL), upper right corner (UR), lower right corner (LR), lower left corner (LL) of the fault
    {'cluster'       } - source cluster ID on the basis of the event aggregation identified by Sgobba et al. (2021)
'distances' - Joyner-Boore distance [km] from the fault plane surface projection
'gridDeg' - geographical coordinates of the grid nodes [°] according to WGS84 geodetic system
'scenarioId' - 8-character ID identifying the assumed options of scenario's elaboration (e.g. '1000cdbd':
    %c-event in the source clusters (0/1); d-event in the dataset of calibration (0/1)
    %b-scenario at bedrock(0/1); d-scenario including directivity (0/1)
	
	References
	Sgobba, S, Lanzano, G, Pacor, F. (2021) Empirical nonergodic shaking scenarios based on spatial correlation models: An application to central Italy. Earthquake Engng Struct Dyn. 2021; 50: 60– 80. https://doi.org/10.1002/eqe.3362