{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:08:25.338053", "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-Oct-07_to_2025-Oct-10_289.0_-39.0"}, "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": 2025100001332}, "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 07 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 10 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": 97210.8176124906}, "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": -39.0}, "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": 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": 291.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -40.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -36.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-72.04, -38.5], [-72.25, -38.0], [-72.04, -37.5], [-72.25, -37.0], [-72.03, -36.47], [-71.68, -36.32], [-71.53, -35.97], [-71.18, -35.82], [-71.03, -35.47], [-70.5, -35.25], [-70.0, -35.46], [-69.5, -35.25], [-68.97, -35.47], [-68.75, -36.0], [-68.85, -36.25], [-68.8, -36.38], [-68.5, -36.25], [-67.97, -36.47], [-67.75, -37.0], [-67.85, -37.25], [-67.75, -37.5], [-67.85, -37.75], [-67.75, -38.0], [-67.97, -38.53], [-68.32, -38.68], [-68.47, -39.03], [-68.87, -39.2], [-68.75, -39.5], [-68.97, -40.03], [-69.32, -40.18], [-69.47, -40.53], [-69.82, -40.68], [-69.97, -41.03], [-70.5, -41.25], [-70.75, -41.15], [-71.0, -41.25], [-71.53, -41.03], [-71.68, -40.68], [-72.03, -40.53], [-72.25, -40.0], [-72.15, -39.75], [-72.25, -39.5], [-72.15, -39.25], [-72.25, -39.0], [-72.04, -38.5]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.W.South-America", "S.E.South-America", "S.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-10-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-71.52999999999997, -38.47], [-71.0, -38.25], [-70.47000000000003, -38.47], [-70.25, -39.0], [-70.47000000000003, -39.53], [-71.0, -39.75], [-71.52999999999997, -39.53], [-71.75, -39.0], [-71.52999999999997, -38.47]]]]}, "2025-10-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.25, -39.5], [-72.14999999999998, -39.25], [-72.25, -39.0], [-72.04000000000002, -38.5], [-72.25, -38.0], [-72.04000000000002, -37.5], [-72.25, -37.0], [-72.02999999999997, -36.47], [-71.68, -36.32], [-71.52999999999997, -35.97], [-71.18, -35.82], [-71.02999999999997, -35.47], [-70.5, -35.25], [-70.0, -35.46], [-69.5, -35.25], [-68.97000000000003, -35.47], [-68.75, -36.0], [-68.85000000000002, -36.25], [-68.80000000000001, -36.38], [-68.5, -36.25], [-67.97000000000003, -36.47], [-67.75, -37.0], [-67.85000000000002, -37.25], [-67.75, -37.5], [-67.85000000000002, -37.75], [-67.75, -38.0], [-67.97000000000003, -38.53], [-68.32, -38.68], [-68.47000000000003, -39.03], [-68.87, -39.2], [-68.75, -39.5], [-68.97000000000003, -40.03], [-69.32, -40.18], [-69.47000000000003, -40.53], [-69.82, -40.68], [-69.97000000000003, -41.03], [-70.5, -41.25], [-70.75, -41.15], [-71.0, -41.25], [-71.52999999999997, -41.03], [-71.68, -40.68], [-72.02999999999997, -40.53], [-72.25, -40.0], [-72.14999999999998, -39.75], [-72.25, -39.5]]]]}, "2025-10-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.25, -39.5], [-72.14999999999998, -39.25], [-72.25, -39.0], [-72.04000000000002, -38.5], [-72.25, -38.0], [-72.04000000000002, -37.5], [-72.25, -37.0], [-72.02999999999997, -36.47], [-71.68, -36.32], [-71.52999999999997, -35.97], [-71.18, -35.82], [-71.02999999999997, -35.47], [-70.5, -35.25], [-70.0, -35.46], [-69.5, -35.25], [-68.97000000000003, -35.47], [-68.75, -36.0], [-68.85000000000002, -36.25], [-68.80000000000001, -36.38], [-68.5, -36.25], [-67.97000000000003, -36.47], [-67.75, -37.0], 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"The daily evolution of mean t2m.", "value": [5.863538360595726, 12.657861328125023, 13.474876658121786, 11.994011433919297]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [5.863538360595726, 20.279860432942712, 23.432457224528036, 19.80036315917971]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.926945232921639, 4.835948017358314, 5.514426881467235, 3.9078045042835354]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.926945232921639, 6.36003779524026, 8.425987605709679, 5.858022798726211]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4089924056001324, 1.8498213107077128, 2.0611713523419075, 1.4927658526460355]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4089924056001324, 2.73774843485039, 2.8457537243002697, 2.137657240775822]}}