{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:18:29.008491", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2018-Nov-05_to_2018-Nov-07_115.5_-33.5"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2018110000200}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "November 05 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 07 2018"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 104109.91070221884}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Australia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Australia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Australia"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": ["Indian Ocean"]}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": -33.5}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 115.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "115.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 111.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 116.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -34.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -30.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-11-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.47, -31.97], [111.82, -31.82], [111.97, -31.47], 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[114.0, -30.96], [114.32, -30.82], [114.47, -30.47], [115.0, -30.25], [115.53, -30.47], [115.68, -30.82], [116.03, -30.97], [116.25, -31.5], [116.15, -31.75], [116.18, -31.82], [116.53, -31.97], [116.75, -32.5], [116.65, -32.75], [116.75, -33.0], [116.65, -33.25], [116.75, -33.5], [116.54, -34.0], [116.75, -34.5], [116.53, -35.03], [116.0, -35.25], [115.47, -35.03], [115.32, -34.68], [115.25, -34.65], [115.0, -34.75], [114.47, -34.53], [114.32, -34.18], [114.0, -34.04], [113.5, -34.25], [113.25, -34.15], [113.0, -34.25], [112.47, -34.03], [112.32, -33.68], [112.25, -33.65], [112.0, -33.75], [111.47, -33.53], [111.25, -33.0], [111.35, -32.75], [111.25, -32.5], [111.47, -31.97]]]]}, "2018-11-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.47, -31.97], [111.82, -31.82], [111.97, -31.47], [112.32, -31.32], [112.47, -30.97], [113.0, -30.75], [113.25, -30.85], [113.5, -30.75], [114.0, -30.96], [114.32, -30.82], [114.47, -30.47], [115.0, -30.25], [115.53, -30.47], [115.68, -30.82], [116.03, -30.97], [116.25, -31.5], [116.15, -31.75], [116.18, -31.82], [116.53, -31.97], [116.75, -32.5], [116.65, -32.75], [116.75, -33.0], [116.65, -33.25], [116.75, -33.5], [116.54, -34.0], [116.75, -34.5], [116.53, -35.03], [116.0, -35.25], [115.47, -35.03], [115.32, -34.68], [115.25, -34.65], [115.0, -34.75], [114.47, -34.53], [114.32, -34.18], [114.0, -34.04], [113.5, -34.25], [113.25, -34.15], [113.0, -34.25], [112.47, -34.03], [112.32, -33.68], [112.25, -33.65], [112.0, -33.75], [111.47, -33.53], [111.25, -33.0], [111.35, -32.75], [111.25, -32.5], [111.47, -31.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.673959284167097}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.994480914894883}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.031472082654318, 13.78842285036012, 14.604360324998538]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [10.763527178956792, 9.432481906220346, 11.810663118732634]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.0088806713346954, -3.358596310534918, -2.6159657628150357]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.040211985666929, -6.673959284167097, -4.543526944925247]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7235216196126917, -1.8964972880344444, -1.510249776245664]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9547334998682315, -2.2711956968291007, -1.8279350028799344]}}