{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:09:03.580949", "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-Nov-22_to_2025-Nov-27_315.0_-6.5"}, "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": 2025110002198}, "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": "November 22 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 27 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": 67607.7113452014}, "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": -6.5}, "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": 315.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "315.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 314.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 317.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -7.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -4.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-45.75, -5.35], [-45.5, -5.25], [-45.25, -5.35], [-45.18, -5.32], [-45.03, -4.97], [-44.68, -4.82], [-44.65, -4.75], [-44.75, -4.5], [-44.53, -3.97], [-44.0, -3.75], [-43.47, -3.97], [-43.32, -4.32], [-42.97, -4.47], [-42.82, -4.82], [-42.47, -4.97], [-42.25, -5.5], [-42.35, -5.75], [-42.25, -6.0], [-42.47, -6.53], [-42.87, -6.7], [-42.75, -7.0], [-42.97, -7.53], [-43.5, -7.75], [-43.75, -7.65], [-43.82, -7.68], [-43.97, -8.03], [-44.5, -8.25], [-44.75, -8.15], [-45.0, -8.25], [-45.53, -8.03], [-45.75, -7.5], [-45.65, -7.25], [-45.68, -7.18], [-45.75, -7.15], [-46.0, -7.25], [-46.53, -7.03], [-46.75, -6.5], [-46.65, -6.25], [-46.75, -6.0], [-46.53, -5.47], [-46.0, -5.25], [-45.75, -5.35]]]]}}, "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": {"2025-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.02999999999997, -5.47], [-45.5, -5.25], [-44.97000000000003, -5.47], [-44.75, -6.0], [-44.97000000000003, -6.53], [-45.5, -6.75], [-46.02999999999997, -6.53], [-46.25, -6.0], [-46.02999999999997, -5.47]]]]}, "2025-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.75, -6.0], [-46.52999999999997, -5.47], [-46.0, -5.25], [-45.75, -5.35], [-45.5, -5.25], [-45.25, -5.35], [-45.0, -5.25], [-44.47000000000003, -5.47], [-44.31999999999999, -5.82], [-44.25, -5.85], [-44.0, -5.75], [-43.69999999999999, -5.88], [-43.52999999999997, -5.47], [-43.0, -5.25], [-42.47000000000003, -5.47], [-42.25, -6.0], [-42.47000000000003, -6.53], [-43.0, -6.75], [-43.30000000000001, -6.62], [-43.35000000000002, -6.75], [-43.25, -7.0], [-43.47000000000003, -7.53], [-43.81999999999999, -7.68], [-43.97000000000003, -8.03], [-44.5, -8.25], [-44.75, -8.15], [-45.0, -8.25], [-45.52999999999997, -8.03], [-45.75, -7.5], [-45.64999999999998, -7.25], [-45.68000000000001, -7.18], [-45.75, -7.15], [-46.0, -7.25], [-46.52999999999997, -7.03], [-46.75, -6.5], [-46.64999999999998, -6.25], [-46.75, -6.0]]]]}, "2025-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.75, -6.0], [-46.52999999999997, -5.47], [-46.0, -5.25], [-45.75, -5.35], [-45.5, -5.25], [-45.25, -5.35], [-45.18000000000001, -5.32], [-45.02999999999997, -4.97], [-44.5, -4.75], [-44.25, -4.85], [-44.18000000000001, -4.82], [-44.02999999999997, -4.47], [-43.5, -4.25], [-42.97000000000003, -4.47], [-42.81999999999999, -4.82], [-42.47000000000003, -4.97], [-42.25, -5.5], [-42.35000000000002, -5.75], [-42.25, -6.0], [-42.47000000000003, -6.53], [-42.870000000000005, -6.7], [-42.75, -7.0], [-42.97000000000003, -7.53], [-43.5, -7.75], [-43.75, -7.65], [-43.81999999999999, -7.68], [-43.97000000000003, -8.03], [-44.5, -8.25], [-44.75, -8.15], [-45.0, -8.25], [-45.52999999999997, -8.03], [-45.75, -7.5], [-45.64999999999998, -7.25], [-45.68000000000001, -7.18], [-45.75, -7.15], [-46.0, -7.25], [-46.52999999999997, -7.03], [-46.75, -6.5], [-46.64999999999998, -6.25], [-46.75, -6.0]]]]}, "2025-11-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-46.75, -6.0], [-46.52999999999997, -5.47], [-46.0, -5.25], [-45.75, -5.35], [-45.5, -5.25], [-45.25, -5.35], [-45.18000000000001, -5.32], [-45.02999999999997, -4.97], [-44.68000000000001, -4.82], [-44.64999999999998, -4.75], [-44.75, -4.5], [-44.52999999999997, -3.97], [-44.0, -3.75], [-43.47000000000003, -3.97], [-43.31999999999999, -4.32], [-42.97000000000003, -4.47], [-42.81999999999999, -4.82], [-42.47000000000003, -4.97], [-42.25, -5.5], [-42.35000000000002, -5.75], [-42.25, -6.0], [-42.47000000000003, -6.53], [-42.870000000000005, -6.7], [-42.75, -7.0], [-42.97000000000003, -7.53], [-43.5, -7.75], [-43.75, -7.65], [-43.81999999999999, -7.68], [-43.97000000000003, -8.03], [-44.5, -8.25], [-44.75, -8.15], [-45.0, -8.25], [-45.52999999999997, -8.03], [-45.75, -7.5], [-45.64999999999998, -7.25], [-45.68000000000001, -7.18], [-45.75, -7.15], [-46.0, -7.25], [-46.52999999999997, 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[-46.52999999999997, -7.03], [-46.75, -6.5], [-46.64999999999998, -6.25], [-46.75, -6.0]]]]}, "2025-11-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-44.75, -4.5], [-44.52999999999997, -3.97], [-44.0, -3.75], [-43.47000000000003, -3.97], [-43.31999999999999, -4.32], [-42.97000000000003, -4.47], [-42.81999999999999, -4.82], [-42.47000000000003, -4.97], [-42.25, -5.5], [-42.47000000000003, -6.03], [-43.0, -6.25], [-43.52999999999997, -6.03], [-43.68000000000001, -5.68], [-43.75, -5.65], [-44.0, -5.75], [-44.52999999999997, -5.53], [-44.75, -5.0], [-44.64999999999998, -4.75], [-44.75, -4.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.086326858785867}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.231047046227843}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.257346089680993, 29.22573134593472, 29.358321126302144, 29.68218245072802, 29.523936208089253, 30.50721130371096]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.257346089680993, 31.367996470133505, 31.190108235677087, 31.44397888183596, 31.703725433349632, 31.025684611002646]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.5864814568273005, 2.2700167848639605, 2.0666914194812107, 2.390951061713136, 2.260739523066607, 2.0593804573808256]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.5864814568273005, 2.9598269670848936, 2.6530868700489236, 2.9164304318506424, 3.086326858785867, 2.4017197107023094]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2598970112658325, 1.6025510192699717, 1.438054212409055, 1.6392815773291267, 1.539927230193734, 1.3302917844325983]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2598970112658325, 2.0870761482065943, 1.9352565337075216, 2.0650848727512283, 1.9758120409743014, 1.460192625825056]}}