{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:55:22.296290", "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": "2023-Sep-12_to_2023-Sep-14_315.5_-23.5"}, "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": 2023090001370}, "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 12 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 14 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 50760.07211070063}, "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": ["Atlantic Ocean", "Oceano Atl\u00e2ntico"]}, "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": -23.5}, "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": 315.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "315.5\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": 316.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -25.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -23.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-47.03, -23.97], [-46.68, -23.82], [-46.53, -23.47], [-46.0, -23.25], [-45.75, -23.35], [-45.68, -23.32], [-45.53, -22.97], [-45.0, -22.75], [-44.75, -22.85], [-44.5, -22.75], [-44.25, -22.85], [-44.18, -22.82], [-44.03, -22.47], [-43.5, -22.25], [-42.97, -22.47], [-42.75, -23.0], [-42.85, -23.25], [-42.75, -23.5], [-42.97, -24.03], [-43.32, -24.18], [-43.35, -24.25], [-43.25, -24.5], [-43.47, -25.03], [-44.0, -25.25], [-44.5, -25.04], [-44.82, -25.18], [-44.85, -25.25], [-44.75, -25.5], [-44.97, -26.03], [-45.5, -26.25], [-46.03, -26.03], [-46.18, -25.68], [-46.53, -25.53], [-46.68, -25.18], [-47.03, -25.03], [-47.25, -24.5], [-47.03, -23.97]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-09-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-47.02999999999997, -25.03], [-47.25, -24.5], [-47.02999999999997, -23.97], [-46.68000000000001, -23.82], [-46.52999999999997, -23.47], [-46.0, -23.25], [-45.75, -23.35], [-45.68000000000001, -23.32], [-45.52999999999997, -22.97], [-45.0, -22.75], [-44.75, -22.85], [-44.5, -22.75], [-44.25, -22.85], [-44.18000000000001, -22.82], [-44.02999999999997, -22.47], [-43.5, -22.25], [-42.97000000000003, -22.47], [-42.75, -23.0], [-42.85000000000002, -23.25], [-42.75, -23.5], [-42.97000000000003, -24.03], [-43.31999999999999, -24.18], [-43.35000000000002, -24.25], [-43.25, -24.5], [-43.47000000000003, -25.03], [-44.0, -25.25], [-44.5, -25.04], [-44.81999999999999, -25.18], [-44.85000000000002, -25.25], [-44.75, -25.5], [-44.97000000000003, -26.03], [-45.5, -26.25], [-46.02999999999997, -26.03], [-46.18000000000001, -25.68], [-46.52999999999997, -25.53], [-46.68000000000001, -25.18], [-47.02999999999997, -25.03]]]]}, "2023-09-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-47.02999999999997, -25.03], [-47.25, -24.5], [-47.02999999999997, -23.97], [-46.68000000000001, -23.82], [-46.52999999999997, -23.47], [-46.0, -23.25], [-45.75, -23.35], [-45.68000000000001, -23.32], [-45.52999999999997, -22.97], [-45.0, -22.75], [-44.75, -22.85], [-44.5, -22.75], [-44.25, -22.85], [-44.18000000000001, -22.82], [-44.02999999999997, -22.47], [-43.5, -22.25], [-42.97000000000003, -22.47], [-42.75, -23.0], [-42.85000000000002, -23.25], [-42.75, -23.5], [-42.97000000000003, -24.03], [-43.31999999999999, -24.18], [-43.35000000000002, -24.25], [-43.25, -24.5], [-43.47000000000003, -25.03], [-44.0, -25.25], [-44.5, -25.04], [-44.81999999999999, -25.18], [-44.85000000000002, -25.25], [-44.75, -25.5], [-44.97000000000003, -26.03], [-45.5, -26.25], [-46.02999999999997, -26.03], [-46.18000000000001, -25.68], [-46.52999999999997, -25.53], [-46.68000000000001, -25.18], [-47.02999999999997, -25.03]]]]}, "2023-09-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-47.02999999999997, -25.03], [-47.25, -24.5], [-47.02999999999997, -23.97], [-46.68000000000001, -23.82], [-46.52999999999997, -23.47], [-46.0, -23.25], [-45.75, -23.35], [-45.68000000000001, -23.32], [-45.52999999999997, -22.97], [-45.0, -22.75], [-44.75, -22.85], [-44.5, -22.75], [-44.25, -22.85], [-44.18000000000001, -22.82], [-44.02999999999997, -22.47], [-43.5, -22.25], [-42.97000000000003, -22.47], [-42.75, -23.0], [-42.85000000000002, -23.25], [-42.75, -23.5], [-42.97000000000003, -24.03], [-43.31999999999999, -24.18], [-43.35000000000002, -24.25], [-43.25, -24.5], [-43.47000000000003, -25.03], [-44.0, -25.25], [-44.5, -25.04], [-44.81999999999999, -25.18], [-44.85000000000002, -25.25], [-44.75, -25.5], [-44.97000000000003, -26.03], [-45.5, -26.25], [-46.02999999999997, -26.03], [-46.18000000000001, -25.68], [-46.52999999999997, -25.53], [-46.68000000000001, -25.18], [-47.02999999999997, -25.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.661216786978798}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.4464242137320613}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.499323095428906, 23.98969424184213, 23.106387377139868]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.328890678997936, 26.205809532115723, 25.9479985102991]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.3695601760678104, 2.8966503765814795, 2.073062088546894]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.1992287462912827, 4.661216786978798, 3.729926720957735]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7829266657661849, 2.2649751398095663, 1.6209034010468342]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.1759912492063402, 2.702232851404276, 2.0974450373506404]}}