{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:07:56.634719", "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-Sep-10_to_2025-Sep-15_314.5_-12.5"}, "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": 2025090001643}, "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": "September 10 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 15 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 66177.88044223984}, "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": ["Brazil"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": -12.5}, "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": 314.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "314.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 313.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 316.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -15.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -11.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-44.35, -14.75], [-44.25, -15.0], [-44.47, -15.53], [-45.0, -15.75], [-45.25, -15.65], [-45.5, -15.75], [-45.75, -15.65], [-46.0, -15.75], [-46.25, -15.65], [-46.5, -15.75], [-47.03, -15.53], [-47.25, -15.0], [-47.03, -14.47], [-46.68, -14.32], [-46.65, -14.25], [-46.75, -14.0], [-46.65, -13.75], [-46.75, -13.5], [-46.65, -13.25], [-46.75, -13.0], [-46.65, -12.75], [-46.75, -12.5], [-46.65, -12.25], [-46.75, -12.0], [-46.65, -11.75], [-46.75, -11.5], [-46.53, -10.97], [-46.0, -10.75], [-45.75, -10.85], [-45.68, -10.82], [-45.53, -10.47], [-45.0, -10.25], [-44.47, -10.47], [-44.25, -11.0], [-44.47, -11.53], [-44.82, -11.68], [-44.85, -11.75], [-44.8, -11.88], [-44.5, -11.75], [-44.25, -11.85], [-44.0, -11.75], [-43.47, -11.97], [-43.25, -12.5], [-43.47, -13.03], [-44.0, -13.25], [-44.25, -13.15], [-44.32, -13.18], [-44.46, -13.5], [-44.25, -14.0], [-44.35, -14.25], [-44.25, -14.5], [-44.35, -14.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-09-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-45.52999999999997, -13.97], [-45.0, -13.75], [-44.47000000000003, -13.97], [-44.25, -14.5], [-44.35000000000002, -14.75], [-44.25, -15.0], [-44.47000000000003, -15.53], [-45.0, -15.75], [-45.52999999999997, -15.53], [-45.75, -15.0], [-45.64999999999998, -14.75], [-45.75, -14.5], [-45.52999999999997, -13.97]]], [[[-45.02999999999997, -13.03], [-45.25, -12.5], [-45.02999999999997, -11.97], [-44.5, -11.75], [-44.25, -11.85], [-44.0, -11.75], [-43.47000000000003, -11.97], [-43.25, -12.5], [-43.47000000000003, -13.03], [-44.0, -13.25], [-44.25, -13.15], [-44.5, -13.25], [-45.02999999999997, -13.03]]]]}, "2025-09-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.64999999999998, -14.25], [-46.75, -14.0], [-46.64999999999998, -13.75], [-46.75, -13.5], [-46.64999999999998, -13.25], [-46.75, -13.0], [-46.64999999999998, -12.75], 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29.009619649251306, 27.64400126139327, 27.82866566975912]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.081240789753693, 2.6830916863990653, 2.8993227210336503, 2.1684376239212044, 1.8755758017132393, 2.0594421906245657]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.3941986528780035, 4.016353098650711, 3.61756547754311, 2.628526938539551, 1.993225671641369, 2.0594421906245657]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4469683501693105, 1.9453987069025138, 2.230996821406268, 1.6905660723239868, 1.7970343825885349, 1.8191488690558393]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7509401040239703, 2.6232130423246556, 2.8445781320813204, 2.1795201888877616, 1.8036258566135959, 1.8191488690558393]}}