{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:05:29.351791", "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": "2025-May-19_to_2025-May-22_289.0_-30.5"}, "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": 2025050002101}, "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": "May 19 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 22 2025"}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 73684.9671074805}, "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": -30.5}, "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": 289.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "289.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 288.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 290.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -34.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -29.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-72.15, -32.75], [-72.25, -32.5], [-72.15, -32.25], [-72.25, -32.0], [-72.15, -31.75], [-72.25, -31.5], [-72.15, -31.25], [-72.25, -31.0], [-72.15, -30.75], [-72.25, -30.5], [-72.03, -29.97], [-71.5, -29.75], [-71.25, -29.85], [-71.18, -29.82], [-71.15, -29.75], [-71.25, -29.5], [-71.03, -28.97], [-70.68, -28.82], [-70.53, -28.47], [-70.0, -28.25], [-69.47, -28.47], [-69.25, -29.0], [-69.35, -29.25], [-69.32, -29.32], [-68.97, -29.47], [-68.75, -30.0], [-68.85, -30.25], [-68.75, -30.5], [-68.85, -30.75], [-68.75, -31.0], [-68.97, -31.53], [-69.5, -31.75], [-70.0, -31.54], [-70.32, -31.68], [-70.35, -31.75], [-70.25, -32.0], [-70.35, -32.25], [-70.25, -32.5], [-70.35, -32.75], [-70.32, -32.82], [-69.97, -32.97], [-69.75, -33.5], [-69.97, -34.03], [-70.32, -34.18], [-70.35, -34.25], [-70.25, -34.5], [-70.47, -35.03], [-71.0, -35.25], [-71.53, -35.03], [-71.68, -34.68], [-72.03, -34.53], [-72.25, -34.0], [-72.15, -33.75], [-72.25, -33.5], [-72.15, -33.25], [-72.25, -33.0], [-72.15, -32.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.W.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-05-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.25, -33.5], [-72.14999999999998, -33.25], [-72.25, -33.0], [-72.14999999999998, -32.75], [-72.25, -32.5], [-72.14999999999998, -32.25], [-72.25, -32.0], [-72.14999999999998, -31.75], [-72.25, -31.5], [-72.14999999999998, -31.25], [-72.25, -31.0], [-72.14999999999998, -30.75], [-72.25, -30.5], [-72.02999999999997, -29.97], [-71.5, -29.75], [-71.25, -29.85], [-71.18, -29.82], [-71.14999999999998, -29.75], [-71.25, -29.5], [-71.02999999999997, -28.97], [-70.68, -28.82], [-70.52999999999997, -28.47], [-70.0, -28.25], [-69.47000000000003, -28.47], [-69.25, -29.0], [-69.35000000000002, -29.25], [-69.32, -29.32], [-68.97000000000003, -29.47], [-68.75, -30.0], [-68.85000000000002, -30.25], [-68.75, -30.5], [-68.85000000000002, -30.75], [-68.75, -31.0], 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"evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.25070470174154, 16.51405487060549, 17.18564885457357, 15.341357167561853]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.7539180405465293, 4.0447707930369114, 4.517618267502335, 4.044349538622705]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.196380767382095, 6.774171024520626, 6.7235850035266935, 6.166467782490315]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6219394733364383, 1.712135991403221, 1.9179336050604208, 1.4160902400500701]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.4841300613606863, 2.8288001159557257, 2.816170195517953, 1.824716096634872]}}