{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:49.568338", "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": "2012-Nov-21_to_2012-Nov-24_287.0_-38.5"}, "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": 2012110000780}, "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 21 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 24 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 93753.4982408595}, "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": ["Chile"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.W.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 Pacific 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": -38.5}, "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": 287.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "287.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 284.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 288.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -40.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -31.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-11-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.0, -37.75], [-72.47, -37.97], [-72.25, -38.5], [-72.47, -39.03], [-73.0, -39.25], [-73.53, -39.03], [-73.75, -38.5], [-73.53, -37.97], [-73.0, -37.75]]]]}, "2012-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.53, -31.47], [-75.0, -31.25], [-74.47, -31.47], [-74.25, -32.0], [-74.35, -32.25], [-74.32, -32.32], [-73.97, -32.47], [-73.75, -33.0], [-73.85, -33.25], [-73.75, -33.5], [-73.85, -33.75], [-73.82, -33.82], [-73.47, -33.97], [-73.32, -34.32], [-73.25, -34.35], [-73.0, -34.25], [-72.47, -34.47], [-72.25, -35.0], [-72.35, -35.25], [-72.3, -35.38], [-72.18, -35.32], [-72.03, -34.97], [-71.5, -34.75], [-70.97, -34.97], [-70.75, -35.5], [-70.85, -35.75], [-70.75, -36.0], [-70.97, -36.53], [-71.32, -36.68], [-71.35, -36.75], [-71.25, -37.0], [-71.35, -37.25], [-71.25, -37.5], [-71.35, -37.75], [-71.25, -38.0], [-71.35, -38.25], [-71.25, -38.5], [-71.47, -39.03], [-71.87, -39.2], [-71.82, -39.32], [-71.47, -39.47], [-71.25, -40.0], [-71.47, -40.53], [-71.82, -40.68], [-71.97, -41.03], [-72.5, -41.25], [-72.75, 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mean t2m anomalies.", "value": [-1.9568126160718293, -3.362446357232675, -2.549663581227728, -1.9386209931555107]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.9568126160718293, -5.918385292561027, -4.673749906471755, -3.0070744024494616]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2439440652955858, -2.3472573330813304, -1.7365823963334295, -1.4060484154681243]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.2439440652955858, -2.8085170593249904, -2.3375669116229, -1.633626564677279]}}