{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:08:39.042531", "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-31_to_2025-Nov-05_307.5_2.0"}, "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": 2025100002674}, "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 31 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 05 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": 95802.81890478388}, "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": 2.0}, "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": 307.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "307.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 304.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 309.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 0.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 2.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-56.0, 1.75], [-55.75, 1.65], [-55.5, 1.75], [-55.25, 1.65], [-55.0, 1.75], [-54.7, 1.62], [-54.53, 2.03], [-54.0, 2.25], [-53.75, 2.15], [-53.68, 2.18], [-53.53, 2.53], [-53.0, 2.75], [-52.75, 2.65], [-52.5, 2.75], [-52.25, 2.65], [-52.0, 2.75], [-51.75, 2.65], [-51.5, 2.75], [-51.25, 2.65], [-51.0, 2.75], [-50.47, 2.53], [-50.25, 2.0], [-50.47, 1.47], [-50.82, 1.32], [-50.85, 1.25], [-50.75, 1.0], [-50.97, 0.47], [-51.32, 0.32], [-51.47, -0.03], [-51.82, -0.18], [-51.97, -0.53], [-52.5, -0.75], [-52.75, -0.65], [-53.0, -0.75], [-53.25, -0.65], [-53.5, -0.75], [-54.0, -0.54], [-54.5, -0.75], [-54.75, -0.65], [-55.0, -0.75], [-55.25, -0.65], [-55.5, -0.75], [-56.03, -0.53], [-56.25, 0.0], [-56.15, 0.25], [-56.18, 0.32], [-56.53, 0.47], [-56.75, 1.0], [-56.53, 1.53], [-56.0, 1.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.South-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-10-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.64999999999998, 1.25], [-54.75, 1.5], [-54.52999999999997, 2.03], [-54.0, 2.25], [-53.75, 2.15], [-53.68000000000001, 2.18], [-53.52999999999997, 2.53], [-53.0, 2.75], [-52.75, 2.65], [-52.5, 2.75], [-52.25, 2.65], [-52.0, 2.75], [-51.75, 2.65], [-51.5, 2.75], [-51.25, 2.65], [-51.0, 2.75], [-50.47000000000003, 2.53], [-50.25, 2.0], [-50.47000000000003, 1.47], [-50.81999999999999, 1.32], [-50.97000000000003, 0.97], [-51.370000000000005, 0.8], [-51.25, 0.5], [-51.47000000000003, -0.03], [-51.81999999999999, -0.18], [-51.97000000000003, -0.53], [-52.5, -0.75], [-52.75, -0.65], [-53.0, -0.75], [-53.25, -0.65], [-53.5, -0.75], [-54.02999999999997, -0.53], [-54.25, 0.0], [-54.120000000000005, 0.3], [-54.30000000000001, 0.38], [-54.47000000000003, -0.03], [-55.0, -0.25], [-55.52999999999997, -0.03], [-55.75, 0.5], [-55.52999999999997, 1.03], [-55.0, 1.25], [-54.69999999999999, 1.12], [-54.64999999999998, 1.25]]]]}, "2025-11-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.64999999999998, 1.25], [-54.75, 1.5], [-54.52999999999997, 2.03], [-54.0, 2.25], [-53.75, 2.15], [-53.68000000000001, 2.18], [-53.52999999999997, 2.53], [-53.0, 2.75], [-52.75, 2.65], [-52.5, 2.75], [-52.25, 2.65], [-52.0, 2.75], [-51.75, 2.65], [-51.5, 2.75], [-51.25, 2.65], [-51.0, 2.75], [-50.47000000000003, 2.53], [-50.25, 2.0], [-50.47000000000003, 1.47], [-50.81999999999999, 1.32], [-50.85000000000002, 1.25], [-50.75, 1.0], [-50.97000000000003, 0.47], [-51.31999999999999, 0.32], [-51.47000000000003, -0.03], [-51.81999999999999, -0.18], [-51.97000000000003, -0.53], [-52.5, -0.75], [-52.75, -0.65], [-53.0, -0.75], [-53.25, -0.65], [-53.5, -0.75], [-54.02999999999997, -0.53], [-54.25, 0.0], [-54.120000000000005, 0.3], [-54.30000000000001, 0.38], [-54.47000000000003, -0.03], [-55.0, -0.25], [-55.52999999999997, -0.03], [-55.75, 0.5], [-55.52999999999997, 1.03], [-55.0, 1.25], [-54.69999999999999, 1.12], [-54.64999999999998, 1.25]]]]}, "2025-11-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.25, 0.5], [-56.14999999999998, 0.75], [-56.25, 1.0], [-56.02999999999997, 1.53], [-55.5, 1.75], [-55.25, 1.65], [-55.0, 1.75], [-54.69999999999999, 1.62], [-54.52999999999997, 2.03], [-54.0, 2.25], [-53.75, 2.15], [-53.68000000000001, 2.18], [-53.52999999999997, 2.53], [-53.0, 2.75], [-52.75, 2.65], [-52.5, 2.75], [-52.25, 2.65], [-52.0, 2.75], [-51.75, 2.65], [-51.5, 2.75], [-51.25, 2.65], [-51.0, 2.75], [-50.47000000000003, 2.53], [-50.25, 2.0], [-50.47000000000003, 1.47], [-50.81999999999999, 1.32], [-50.85000000000002, 1.25], [-50.75, 1.0], [-50.97000000000003, 0.47], [-51.31999999999999, 0.32], [-51.47000000000003, -0.03], [-51.81999999999999, -0.18], [-51.97000000000003, -0.53], [-52.5, -0.75], [-52.75, -0.65], [-53.0, -0.75], [-53.25, -0.65], [-53.5, -0.75], [-54.0, -0.54], [-54.5, -0.75], [-54.75, -0.65], [-55.0, -0.75], [-55.25, -0.65], [-55.5, -0.75], [-56.02999999999997, -0.53], [-56.25, 0.0], [-56.14999999999998, 0.25], [-56.25, 0.5]]]]}, "2025-11-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.52999999999997, 0.47], [-56.75, 1.0], [-56.52999999999997, 1.53], [-56.0, 1.75], [-55.75, 1.65], [-55.5, 1.75], [-55.25, 1.65], [-55.0, 1.75], [-54.69999999999999, 1.62], [-54.52999999999997, 2.03], [-54.0, 2.25], [-53.75, 2.15], [-53.68000000000001, 2.18], [-53.52999999999997, 2.53], [-53.0, 2.75], [-52.75, 2.65], [-52.5, 2.75], [-52.25, 2.65], [-52.0, 2.75], [-51.75, 2.65], [-51.5, 2.75], [-51.25, 2.65], [-51.0, 2.75], [-50.47000000000003, 2.53], [-50.25, 2.0], [-50.47000000000003, 1.47], [-50.81999999999999, 1.32], [-50.85000000000002, 1.25], [-50.75, 1.0], [-50.97000000000003, 0.47], [-51.31999999999999, 0.32], [-51.47000000000003, -0.03], [-52.0, -0.25], [-52.25, -0.15], [-52.5, -0.25], [-53.02999999999997, -0.03], [-53.18000000000001, 0.32], [-53.25, 0.35], [-53.5, 0.25], [-53.75, 0.35], [-53.81999999999999, 0.32], [-53.85000000000002, 0.25], [-53.75, 0.0], [-53.97000000000003, -0.53], [-54.5, -0.75], [-54.75, -0.65], [-55.0, -0.75], [-55.25, -0.65], [-55.5, -0.75], [-56.02999999999997, -0.53], [-56.25, 0.0], [-56.14999999999998, 0.25], [-56.18000000000001, 0.32], [-56.52999999999997, 0.47]]]]}, "2025-11-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.52999999999997, 0.47], [-56.75, 1.0], [-56.52999999999997, 1.53], [-56.0, 1.75], [-55.75, 1.65], [-55.5, 1.75], [-55.25, 1.65], [-55.0, 1.75], [-54.47000000000003, 1.53], [-54.31999999999999, 1.18], [-53.97000000000003, 1.03], [-53.75, 0.5], [-53.85000000000002, 0.25], [-53.75, 0.0], [-53.97000000000003, -0.53], [-54.5, -0.75], [-54.75, -0.65], [-55.0, -0.75], [-55.25, -0.65], [-55.5, -0.75], [-56.02999999999997, -0.53], [-56.25, 0.0], [-56.14999999999998, 0.25], [-56.18000000000001, 0.32], [-56.52999999999997, 0.47]]]]}, "2025-11-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.52999999999997, 0.47], [-56.75, 1.0], [-56.52999999999997, 1.53], [-56.0, 1.75], [-55.47000000000003, 1.53], [-55.31999999999999, 1.18], [-54.97000000000003, 1.03], [-54.75, 0.5], [-54.97000000000003, -0.03], [-55.5, -0.25], [-56.02999999999997, -0.03], [-56.18000000000001, 0.32], [-56.52999999999997, 0.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.492090657159565}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.6936765495818729}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.240249282594732, 29.602651269885143, 29.193917761908608, 29.262296113513855, 28.994465269865827, 28.796439107259175]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.93210118611654, 30.506509399414085, 30.101532236735068, 30.1125478108724, 29.535634613037132, 28.846284484863304]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4370160974548976, 1.7858509772375837, 1.5979329554140578, 1.8054566039702382, 2.0321862295505375, 1.6765449700955628]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.8687443256085317, 2.464886077249787, 2.1878953105473897, 2.451208234329954, 2.492090657159565, 1.778185856082814]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4914590954700802, 1.8251433073502927, 1.5603960986870564, 1.7257322164260553, 1.7390059728915652, 1.3168019521762215]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.851507069992139, 2.4272818935218696, 2.1231155001086264, 2.1022510121541464, 1.946438986806044, 1.3885433569056844]}}