{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:09:28.223628", "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-Dec-03_to_2025-Dec-07_301.5_-35.5"}, "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": 2025120001337}, "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": "December 03 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 07 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 430113.0154978162}, "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", "Uruguay"]}, "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": ["Atlantic Ocean"]}, "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": -35.5}, "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": 301.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "301.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 294.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 306.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -37.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -32.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-66.03, -34.47], [-65.5, -34.25], [-65.25, -34.35], [-65.0, -34.25], [-64.75, -34.35], [-64.68, -34.32], [-64.53, -33.97], [-64.0, -33.75], [-63.75, -33.85], [-63.68, -33.82], [-63.53, -33.47], [-63.0, -33.25], [-62.75, -33.35], [-62.5, -33.25], [-62.25, -33.35], [-62.0, -33.25], [-61.75, -33.35], [-61.68, -33.32], [-61.65, -33.25], [-61.75, -33.0], [-61.65, -32.75], [-61.75, -32.5], [-61.65, -32.25], [-61.75, -32.0], [-61.53, -31.47], [-61.0, -31.25], [-60.47, -31.47], [-60.32, -31.82], [-59.97, -31.97], [-59.82, -32.32], [-59.75, -32.35], [-59.5, -32.25], [-59.25, -32.35], [-59.0, -32.25], [-58.75, -32.35], [-58.5, -32.25], [-58.25, -32.35], [-58.0, -32.25], [-57.75, -32.35], [-57.5, -32.25], [-56.97, -32.47], [-56.82, -32.82], [-56.75, -32.85], [-56.5, -32.75], [-56.25, -32.85], [-56.0, -32.75], [-55.57, -32.93], [-55.75, -32.5], [-55.53, -31.97], [-55.0, -31.75], [-54.75, -31.85], [-54.5, -31.75], [-54.25, -31.85], [-54.0, -31.75], [-53.47, -31.97], [-53.32, -32.32], [-52.97, -32.47], [-52.75, -33.0], [-52.96, -33.5], [-52.75, -34.0], [-52.85, -34.25], [-52.75, -34.5], [-52.97, -35.03], [-53.32, -35.18], [-53.35, -35.25], [-53.25, -35.5], [-53.35, -35.75], [-53.25, -36.0], [-53.47, -36.53], [-54.0, -36.75], [-54.25, -36.65], [-54.32, -36.68], [-54.47, -37.03], [-54.82, -37.18], [-54.97, -37.53], [-55.5, -37.75], [-55.75, -37.65], [-56.0, -37.75], [-56.53, -37.53], [-56.75, -37.0], [-56.65, -36.75], [-56.7, -36.62], [-57.0, -36.75], [-57.25, -36.65], [-57.37, -36.7], [-57.25, -37.0], [-57.47, -37.53], [-58.0, -37.75], [-58.25, -37.65], [-58.5, -37.75], [-58.75, -37.65], [-58.82, -37.68], [-58.97, -38.03], [-59.5, -38.25], [-59.75, -38.15], [-60.0, -38.25], [-60.25, -38.15], [-60.5, -38.25], [-60.75, -38.15], [-61.0, -38.25], [-61.53, -38.03], [-61.68, -37.68], [-62.03, -37.53], [-62.18, -37.18], [-62.25, -37.15], [-62.5, -37.25], [-62.75, -37.15], [-63.0, -37.25], [-63.25, -37.15], [-63.32, -37.18], [-63.47, -37.53], [-64.0, -37.75], [-64.25, -37.65], [-64.5, -37.75], [-65.03, -37.53], [-65.18, -37.18], [-65.53, -37.03], [-65.68, -36.68], [-66.03, -36.53], [-66.25, -36.0], [-66.15, -35.75], [-66.25, -35.5], [-66.15, -35.25], [-66.25, -35.0], [-66.03, -34.47]]]]}}, "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": {"2025-12-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-66.25, -35.5], [-66.14999999999998, -35.25], [-66.25, -35.0], [-66.02999999999997, -34.47], [-65.5, -34.25], [-65.25, -34.35], [-65.0, -34.25], [-64.75, -34.35], [-64.68, -34.32], [-64.52999999999997, -33.97], [-64.0, -33.75], [-63.75, -33.85], [-63.68000000000001, -33.82], [-63.52999999999997, -33.47], [-63.0, -33.25], [-62.75, -33.35], [-62.5, -33.25], [-62.25, -33.35], [-62.0, -33.25], [-61.75, -33.35], [-61.5, -33.25], [-61.25, -33.35], [-61.0, -33.25], [-60.75, -33.35], [-60.68000000000001, -33.32], [-60.64999999999998, -33.25], [-60.75, -33.0], [-60.52999999999997, -32.47], [-60.0, -32.25], [-59.47000000000003, -32.47], [-59.31999999999999, -32.82], [-58.97000000000003, -32.97], [-58.75, -33.5], [-58.97000000000003, -34.03], [-59.31999999999999, -34.18], [-59.35000000000002, -34.25], [-59.31999999999999, -34.32], [-59.25, -34.35], [-59.0, -34.25], [-58.47000000000003, -34.47], [-58.31999999999999, -34.82], [-57.97000000000003, -34.97], [-57.75, -35.5], [-57.85000000000002, -35.75], [-57.75, -36.0], [-57.85000000000002, -36.25], [-57.81999999999999, -36.32], [-57.47000000000003, -36.47], [-57.25, -37.0], [-57.47000000000003, -37.53], [-58.0, -37.75], [-58.25, -37.65], [-58.5, -37.75], [-58.75, -37.65], [-58.81999999999999, -37.68], [-58.97000000000003, -38.03], [-59.5, -38.25], [-59.75, -38.15], [-60.0, -38.25], [-60.25, -38.15], [-60.5, -38.25], [-60.75, -38.15], [-61.0, -38.25], [-61.52999999999997, -38.03], [-61.68000000000001, -37.68], [-62.02999999999997, -37.53], [-62.18000000000001, -37.18], [-62.25, -37.15], [-62.5, -37.25], [-62.75, -37.15], [-63.0, -37.25], [-63.25, -37.15], [-63.31999999999999, -37.18], [-63.47000000000003, -37.53], [-64.0, -37.75], [-64.25, -37.65], [-64.5, -37.75], [-65.02999999999997, -37.53], [-65.18, -37.18], [-65.52999999999997, -37.03], [-65.68, -36.68], [-66.02999999999997, -36.53], [-66.25, -36.0], [-66.14999999999998, -35.75], [-66.25, -35.5]]]]}, "2025-12-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-66.25, -35.5], [-66.14999999999998, -35.25], [-66.25, -35.0], [-66.02999999999997, -34.47], [-65.5, -34.25], [-65.25, -34.35], [-65.0, -34.25], [-64.75, -34.35], [-64.68, -34.32], [-64.52999999999997, -33.97], [-64.0, -33.75], [-63.75, -33.85], [-63.68000000000001, -33.82], [-63.52999999999997, -33.47], [-63.0, -33.25], [-62.75, -33.35], [-62.5, -33.25], [-62.25, -33.35], [-62.0, -33.25], [-61.75, -33.35], [-61.68000000000001, -33.32], [-61.64999999999998, -33.25], [-61.75, -33.0], [-61.64999999999998, -32.75], [-61.75, -32.5], [-61.64999999999998, -32.25], [-61.75, -32.0], [-61.52999999999997, -31.47], [-61.0, -31.25], [-60.47000000000003, -31.47], [-60.31999999999999, -31.82], [-59.97000000000003, -31.97], [-59.81999999999999, -32.32], [-59.75, -32.35], [-59.5, -32.25], [-59.25, -32.35], [-59.0, -32.25], [-58.75, -32.35], [-58.5, -32.25], [-58.25, -32.35], [-58.0, -32.25], [-57.75, -32.35], [-57.5, -32.25], [-56.97000000000003, -32.47], [-56.81999999999999, -32.82], [-56.75, -32.85], [-56.5, -32.75], [-56.25, -32.85], [-56.0, -32.75], [-55.5, -32.96], [-55.0, -32.75], [-54.75, -32.85], [-54.5, -32.75], [-53.97000000000003, -32.97], [-53.81999999999999, -33.32], [-53.75, -33.35], [-53.5, -33.25], [-52.97000000000003, -33.47], [-52.75, -34.0], [-52.85000000000002, -34.25], [-52.75, -34.5], [-52.97000000000003, -35.03], [-53.31999999999999, -35.18], [-53.35000000000002, -35.25], [-53.25, -35.5], [-53.35000000000002, -35.75], [-53.25, -36.0], [-53.47000000000003, -36.53], [-54.0, -36.75], [-54.25, -36.65], [-54.31999999999999, -36.68], [-54.47000000000003, -37.03], [-54.81999999999999, -37.18], [-54.97000000000003, -37.53], [-55.5, -37.75], [-55.75, -37.65], [-56.0, -37.75], [-56.52999999999997, -37.53], [-56.75, -37.0], [-56.64999999999998, -36.75], [-56.69999999999999, -36.62], [-57.0, -36.75], [-57.25, -36.65], [-57.370000000000005, -36.7], [-57.25, -37.0], [-57.47000000000003, -37.53], [-58.0, -37.75], [-58.25, -37.65], [-58.5, -37.75], [-58.75, -37.65], [-58.81999999999999, -37.68], [-58.97000000000003, -38.03], [-59.5, -38.25], [-59.75, -38.15], [-60.0, -38.25], [-60.25, -38.15], [-60.5, -38.25], [-60.75, -38.15], [-61.0, -38.25], [-61.52999999999997, -38.03], [-61.68000000000001, -37.68], [-62.02999999999997, -37.53], [-62.18000000000001, -37.18], [-62.25, -37.15], [-62.5, -37.25], [-62.75, -37.15], [-63.0, -37.25], [-63.25, -37.15], [-63.31999999999999, -37.18], [-63.47000000000003, -37.53], [-64.0, -37.75], [-64.25, -37.65], [-64.5, -37.75], [-65.02999999999997, -37.53], [-65.18, -37.18], [-65.52999999999997, -37.03], [-65.68, -36.68], [-66.02999999999997, -36.53], [-66.25, -36.0], [-66.14999999999998, -35.75], [-66.25, -35.5]]]]}, "2025-12-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-66.25, -35.5], [-66.14999999999998, -35.25], [-66.25, -35.0], [-66.02999999999997, -34.47], [-65.5, -34.25], [-65.25, -34.35], [-65.0, -34.25], [-64.75, -34.35], [-64.68, -34.32], [-64.52999999999997, -33.97], [-64.0, -33.75], [-63.75, -33.85], [-63.68000000000001, -33.82], [-63.52999999999997, -33.47], [-63.0, -33.25], [-62.75, -33.35], [-62.5, -33.25], [-62.25, -33.35], [-62.0, -33.25], [-61.75, -33.35], [-61.68000000000001, -33.32], [-61.64999999999998, -33.25], [-61.75, -33.0], [-61.64999999999998, -32.75], [-61.75, -32.5], [-61.64999999999998, -32.25], [-61.75, -32.0], [-61.52999999999997, -31.47], [-61.0, -31.25], [-60.47000000000003, -31.47], [-60.31999999999999, -31.82], [-59.97000000000003, -31.97], [-59.81999999999999, -32.32], [-59.75, -32.35], [-59.5, -32.25], [-59.25, -32.35], [-59.0, -32.25], [-58.75, -32.35], [-58.5, -32.25], [-58.25, -32.35], [-58.0, -32.25], [-57.75, -32.35], [-57.5, -32.25], [-56.97000000000003, -32.47], [-56.81999999999999, -32.82], [-56.75, -32.85], [-56.5, -32.75], [-56.25, -32.85], [-56.0, -32.75], [-55.56999999999999, -32.93], [-55.75, -32.5], [-55.52999999999997, -31.97], [-55.0, -31.75], [-54.75, -31.85], [-54.5, -31.75], [-54.25, -31.85], [-54.0, -31.75], [-53.47000000000003, -31.97], [-53.31999999999999, -32.32], [-52.97000000000003, -32.47], [-52.75, -33.0], [-52.95999999999998, -33.5], [-52.75, -34.0], [-52.85000000000002, -34.25], [-52.75, -34.5], [-52.97000000000003, -35.03], [-53.31999999999999, -35.18], [-53.35000000000002, -35.25], [-53.25, -35.5], [-53.35000000000002, -35.75], [-53.25, -36.0], [-53.47000000000003, -36.53], [-54.0, -36.75], [-54.25, -36.65], [-54.31999999999999, -36.68], [-54.47000000000003, -37.03], [-54.81999999999999, -37.18], [-54.97000000000003, -37.53], [-55.5, -37.75], [-55.75, -37.65], [-56.0, -37.75], [-56.52999999999997, -37.53], [-56.75, -37.0], [-56.64999999999998, -36.75], [-56.69999999999999, -36.62], [-57.0, -36.75], [-57.25, -36.65], [-57.370000000000005, -36.7], [-57.25, -37.0], [-57.47000000000003, -37.53], [-58.0, -37.75], [-58.25, -37.65], [-58.5, -37.75], [-58.75, -37.65], [-58.81999999999999, -37.68], [-58.97000000000003, -38.03], [-59.5, -38.25], [-59.75, -38.15], [-60.0, -38.25], [-60.25, -38.15], [-60.5, -38.25], [-60.75, -38.15], [-61.0, -38.25], [-61.52999999999997, -38.03], [-61.68000000000001, -37.68], [-62.02999999999997, -37.53], [-62.18000000000001, -37.18], [-62.25, -37.15], [-62.5, -37.25], [-62.75, -37.15], [-63.0, -37.25], [-63.25, -37.15], [-63.31999999999999, -37.18], [-63.47000000000003, -37.53], [-64.0, -37.75], [-64.25, -37.65], [-64.5, -37.75], [-65.02999999999997, -37.53], [-65.18, -37.18], [-65.52999999999997, -37.03], [-65.68, -36.68], [-66.02999999999997, -36.53], [-66.25, -36.0], [-66.14999999999998, -35.75], [-66.25, -35.5]]]]}, "2025-12-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.75, -33.0], [-61.64999999999998, -32.75], [-61.75, -32.5], [-61.64999999999998, -32.25], [-61.75, -32.0], [-61.52999999999997, -31.47], [-61.0, -31.25], [-60.47000000000003, -31.47], [-60.31999999999999, -31.82], [-59.97000000000003, -31.97], [-59.81999999999999, -32.32], [-59.75, -32.35], [-59.5, -32.25], [-59.25, -32.35], [-59.0, -32.25], [-58.75, -32.35], [-58.5, -32.25], [-58.25, -32.35], [-58.0, -32.25], [-57.75, -32.35], [-57.5, -32.25], [-56.97000000000003, -32.47], [-56.81999999999999, -32.82], [-56.75, -32.85], [-56.5, -32.75], [-56.25, -32.85], [-56.0, -32.75], [-55.56999999999999, -32.93], [-55.75, -32.5], [-55.52999999999997, -31.97], [-55.0, -31.75], [-54.75, -31.85], [-54.5, -31.75], [-54.25, -31.85], [-54.0, -31.75], [-53.47000000000003, -31.97], [-53.31999999999999, -32.32], [-52.97000000000003, -32.47], [-52.75, -33.0], [-52.95999999999998, -33.5], [-52.75, -34.0], [-52.85000000000002, -34.25], [-52.75, -34.5], [-52.97000000000003, -35.03], [-53.31999999999999, -35.18], [-53.35000000000002, -35.25], [-53.25, -35.5], [-53.35000000000002, -35.75], [-53.25, -36.0], [-53.47000000000003, -36.53], [-54.0, -36.75], [-54.25, -36.65], [-54.31999999999999, -36.68], [-54.47000000000003, -37.03], [-54.81999999999999, -37.18], [-54.97000000000003, -37.53], [-55.5, -37.75], [-55.75, -37.65], [-56.0, -37.75], [-56.52999999999997, -37.53], [-56.75, -37.0], [-56.64999999999998, -36.75], [-56.69999999999999, -36.62], [-57.0, -36.75], [-57.25, -36.65], [-57.5, -36.75], [-58.02999999999997, -36.53], [-58.18000000000001, -36.18], [-58.25, -36.15], [-58.5, -36.25], [-59.02999999999997, -36.03], [-59.18000000000001, -35.68], [-59.52999999999997, -35.53], [-59.68000000000001, -35.18], [-60.02999999999997, -35.03], [-60.18000000000001, -34.68], [-60.25, -34.65], [-60.5, -34.75], [-61.02999999999997, -34.53], [-61.18000000000001, -34.18], [-61.52999999999997, -34.03], [-61.75, -33.5], [-61.64999999999998, -33.25], [-61.75, -33.0]]]]}, "2025-12-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-55.0, -33.25], [-55.52999999999997, -33.03], [-55.75, -32.5], [-55.52999999999997, -31.97], [-55.0, -31.75], [-54.75, -31.85], [-54.5, -31.75], [-54.25, -31.85], [-54.0, -31.75], [-53.47000000000003, -31.97], [-53.31999999999999, -32.32], [-52.97000000000003, -32.47], [-52.75, -33.0], [-52.97000000000003, -33.53], [-53.5, -33.75], [-53.75, -33.65], [-54.0, -33.75], [-54.52999999999997, -33.53], [-54.68000000000001, -33.18], [-54.75, -33.15], [-55.0, -33.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.322595294259884}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.05131243212088}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.907119219490767, 25.820549650866496, 25.448550056008685, 24.84624102043381, 24.768125661214242]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.412146504720056, 29.24129765828451, 28.678191121419275, 27.959209696451865, 25.200205739339196]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.476711677643789, 5.609311111505149, 5.106971517493833, 4.552823462578801, 3.746246403392854]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.971112634191854, 8.322595294259884, 7.072915755594636, 6.5102848537331965, 4.169116900416043]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4752314413208065, 2.0203101913726744, 1.8733801314023555, 1.822743964064913, 1.5720354961996867]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8965823957552794, 2.6071453449537096, 2.409854752329325, 2.5504495927832043, 1.704062875752666]}}