{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:29.650743", "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": "2014-Oct-12_to_2014-Oct-14_302.0_-54.0"}, "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": 2014100000451}, "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": "October 12 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 14 2014"}, "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": 138583.40466820024}, "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": ["Falkland Islands"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Atlantic-Ocean", "S.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "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": ["South Atlantic 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": -54.0}, "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": 302.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "302.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 300.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 305.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -54.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -49.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-10-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.15, -50.75], [-60.25, -50.5], [-60.03, -49.97], [-59.5, 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[-58.68, -52.68], [-58.75, -52.65], [-59.0, -52.75], [-59.53, -52.53], [-59.68, -52.18], [-60.03, -52.03], [-60.25, -51.5], [-60.15, -51.25], [-60.25, -51.0], [-60.15, -50.75]]]]}, "2014-10-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.15, -50.75], [-60.25, -50.5], [-60.03, -49.97], [-59.5, -49.75], [-59.25, -49.85], [-59.0, -49.75], [-58.75, -49.85], [-58.68, -49.82], [-58.65, -49.75], [-58.75, -49.5], [-58.53, -48.97], [-58.0, -48.75], [-57.75, -48.85], [-57.5, -48.75], [-57.25, -48.85], [-57.0, -48.75], [-56.47, -48.97], [-56.32, -49.32], [-55.97, -49.47], [-55.82, -49.82], [-55.47, -49.97], [-55.25, -50.5], [-55.35, -50.75], [-55.32, -50.82], [-54.97, -50.97], [-54.75, -51.5], [-54.85, -51.75], [-54.82, -51.82], [-54.75, -51.85], [-54.5, -51.75], [-53.97, -51.97], [-53.75, -52.5], [-53.97, -53.03], [-54.37, -53.2], [-54.25, -53.5], [-54.35, -53.75], [-54.25, -54.0], [-54.47, -54.53], [-55.0, -54.75], [-55.25, -54.65], [-55.32, -54.68], [-55.47, -55.03], [-56.0, -55.25], [-56.25, -55.15], [-56.5, -55.25], [-56.75, -55.15], [-57.0, -55.25], [-57.25, -55.15], [-57.5, -55.25], [-57.75, -55.15], [-58.0, -55.25], [-58.53, -55.03], [-58.75, -54.5], [-58.65, -54.25], [-58.75, -54.0], [-58.65, -53.75], [-58.75, -53.5], [-58.65, -53.25], [-58.75, -53.0], [-58.65, -52.75], [-58.68, -52.68], [-58.75, -52.65], [-59.0, -52.75], [-59.53, -52.53], [-59.68, -52.18], [-60.03, -52.03], [-60.25, -51.5], [-60.15, -51.25], [-60.25, -51.0], [-60.15, -50.75]]]]}, "2014-10-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.15, -50.75], [-60.25, -50.5], [-60.03, -49.97], [-59.5, -49.75], [-59.25, -49.85], [-59.0, -49.75], [-58.75, -49.85], [-58.68, -49.82], [-58.65, -49.75], [-58.75, -49.5], [-58.53, -48.97], [-58.0, -48.75], [-57.75, -48.85], [-57.5, -48.75], [-57.25, -48.85], [-57.0, -48.75], [-56.47, -48.97], [-56.32, -49.32], [-55.97, -49.47], [-55.82, -49.82], [-55.47, -49.97], [-55.25, -50.5], [-55.35, -50.75], [-55.32, -50.82], 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amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.398175333994517}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [3.4046543829580287, 2.9747672212045018, 1.9194782984476433]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [2.326348023502476, 1.635149436170991, 0.04699508319828283]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.7351793569796248, -2.18598747410771, -3.273359170896215]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.789080285446005, -3.4621527076024563, -4.145814774753887]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4644945463908174, -1.8587561177489942, -2.8013687038769435]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.652749445063818, -2.470890185668835, -3.297312575170157]}}