{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:59:18.166793", "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": "2024-Jun-22_to_2024-Jun-25_290.0_-37.5"}, "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": 2024060000636}, "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": "June 22 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 25 2024"}, "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": 71598.56411989607}, "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": ["Argentina", "Chile"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America", "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": []}, "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": -37.5}, "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": 290.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "290.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 286.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 291.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -39.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -35.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-73.53, -35.97], [-73.18, -35.82], [-73.15, -35.75], [-73.25, -35.5], [-73.03, -34.97], [-72.5, -34.75], [-71.97, -34.97], [-71.75, -35.5], [-71.85, -35.75], [-71.75, -36.0], [-71.85, -36.25], [-71.82, -36.32], [-71.75, -36.35], [-71.5, -36.25], [-71.2, -36.38], [-71.03, -35.97], [-70.5, -35.75], [-70.0, -35.96], [-69.68, -35.82], [-69.65, -35.75], [-69.75, -35.5], [-69.53, -34.97], [-69.0, -34.75], [-68.75, -34.85], [-68.5, -34.75], [-67.97, -34.97], [-67.75, -35.5], [-67.85, -35.75], [-67.75, -36.0], [-67.85, -36.25], [-67.75, -36.5], [-67.97, -37.03], [-68.5, -37.25], [-68.75, -37.15], [-69.0, -37.25], [-69.25, -37.15], [-69.32, -37.18], [-69.35, -37.25], [-69.25, -37.5], [-69.35, -37.75], [-69.25, -38.0], [-69.35, -38.25], [-69.25, -38.5], [-69.35, -38.75], [-69.25, -39.0], [-69.47, -39.53], [-70.0, -39.75], [-70.53, -39.53], [-70.75, -39.0], [-70.65, -38.75], [-70.68, -38.68], [-71.03, -38.53], [-71.18, -38.18], [-71.25, -38.15], [-71.5, -38.25], [-72.0, -38.04], [-72.32, -38.18], [-72.47, -38.53], [-73.0, -38.75], [-73.53, -38.53], [-73.68, -38.18], [-74.03, -38.03], [-74.25, -37.5], [-74.15, -37.25], [-74.25, -37.0], [-74.03, -36.47], [-73.68, -36.32], [-73.53, -35.97]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.W.South-America", "S.E.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-06-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-69.52999999999997, -35.47], [-69.0, -35.25], [-68.47000000000003, -35.47], [-68.25, -36.0], [-68.47000000000003, -36.53], [-69.0, -36.75], [-69.52999999999997, -36.53], [-69.75, -36.0], [-69.52999999999997, -35.47]]]]}, "2024-06-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-74.25, -37.0], [-74.02999999999997, -36.47], [-73.68, -36.32], [-73.52999999999997, -35.97], [-73.18, -35.82], [-73.14999999999998, -35.75], [-73.25, -35.5], [-73.02999999999997, -34.97], [-72.5, -34.75], [-71.97000000000003, -34.97], [-71.75, 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{"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-2.1290674023059637, -9.13779025661455, -11.127682810221302, -11.66547843874082]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.034778197456603, -4.555873582755502, -6.551318048934945, -6.062360113223978]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.034778197456603, -8.68366776939223, -11.769513857641414, -9.511500428551301]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3117346878817835, -1.739425417362232, -2.4654872116548265, -2.2606503017413395]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3117346878817835, -2.8253915926647006, -3.7578809288775603, -3.043679725285008]}}