{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:10:28.802895", "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": "2026-Feb-11_to_2026-Feb-13_309.0_-27.0"}, "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": 2026020001685}, "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": "February 11 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 13 2026"}, "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": 76791.68368350997}, "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"]}, "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": -27.0}, "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": 309.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "309.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 306.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 311.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -29.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -26.25}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-53.53, -26.47], [-53.0, -26.25], [-52.75, -26.35], [-52.5, -26.25], [-52.25, -26.35], [-52.0, -26.25], [-51.75, -26.35], [-51.68, -26.32], [-51.53, -25.97], [-51.0, -25.75], [-50.5, -25.96], [-50.0, -25.75], [-49.75, -25.85], [-49.5, -25.75], [-48.97, -25.97], [-48.75, -26.5], [-48.85, -26.75], [-48.82, -26.82], [-48.47, -26.97], [-48.32, -27.32], [-47.97, -27.47], [-47.75, -28.0], [-47.85, -28.25], [-47.75, -28.5], [-47.85, -28.75], [-47.75, -29.0], [-47.97, -29.53], [-48.5, -29.75], [-49.03, -29.53], [-49.25, -29.0], [-49.15, -28.75], [-49.18, -28.68], [-49.25, -28.65], [-49.5, -28.75], [-49.75, -28.65], [-50.0, -28.75], [-50.25, -28.65], [-50.5, -28.75], [-50.75, -28.65], [-51.0, -28.75], [-51.25, -28.65], [-51.5, -28.75], [-52.03, -28.53], [-52.18, -28.18], [-52.25, -28.15], [-52.5, -28.25], [-53.03, -28.03], [-53.18, -27.68], [-53.53, -27.53], [-53.75, -27.0], [-53.53, -26.47]]]]}}, "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": {"2026-02-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.52999999999997, -27.53], [-53.75, -27.0], [-53.52999999999997, -26.47], [-53.0, -26.25], [-52.75, -26.35], [-52.5, -26.25], [-52.25, -26.35], [-52.0, -26.25], [-51.75, -26.35], [-51.68000000000001, -26.32], [-51.52999999999997, -25.97], [-51.0, -25.75], [-50.5, -25.96], [-50.0, -25.75], [-49.75, -25.85], [-49.5, -25.75], [-48.97000000000003, -25.97], [-48.75, -26.5], [-48.85000000000002, -26.75], [-48.81999999999999, -26.82], [-48.47000000000003, -26.97], [-48.31999999999999, -27.32], [-47.97000000000003, -27.47], [-47.75, -28.0], [-47.85000000000002, -28.25], [-47.75, -28.5], [-47.85000000000002, -28.75], [-47.75, -29.0], [-47.97000000000003, -29.53], [-48.5, -29.75], [-49.02999999999997, -29.53], [-49.25, -29.0], [-49.14999999999998, -28.75], [-49.18000000000001, -28.68], [-49.25, -28.65], [-49.5, -28.75], [-49.75, -28.65], [-50.0, -28.75], [-50.25, -28.65], [-50.5, -28.75], [-50.75, -28.65], [-51.0, -28.75], [-51.25, -28.65], [-51.5, -28.75], [-52.02999999999997, -28.53], [-52.18000000000001, -28.18], [-52.25, -28.15], [-52.5, -28.25], [-53.02999999999997, -28.03], [-53.18000000000001, -27.68], [-53.52999999999997, -27.53]]]]}, "2026-02-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.52999999999997, -27.53], [-53.75, -27.0], [-53.52999999999997, -26.47], [-53.0, -26.25], [-52.75, -26.35], [-52.5, -26.25], [-52.25, -26.35], [-52.0, -26.25], [-51.75, -26.35], [-51.68000000000001, -26.32], [-51.52999999999997, -25.97], [-51.0, -25.75], [-50.5, -25.96], [-50.0, -25.75], [-49.75, -25.85], [-49.5, -25.75], [-48.97000000000003, -25.97], [-48.75, -26.5], [-48.85000000000002, -26.75], [-48.81999999999999, -26.82], [-48.47000000000003, -26.97], [-48.31999999999999, -27.32], [-47.97000000000003, -27.47], [-47.75, -28.0], [-47.85000000000002, -28.25], [-47.75, -28.5], [-47.85000000000002, -28.75], [-47.75, -29.0], [-47.97000000000003, -29.53], [-48.5, -29.75], [-49.02999999999997, -29.53], [-49.25, -29.0], [-49.14999999999998, -28.75], [-49.18000000000001, -28.68], [-49.25, -28.65], [-49.5, -28.75], [-49.75, -28.65], [-50.0, -28.75], [-50.25, -28.65], [-50.5, -28.75], [-50.75, -28.65], [-51.0, -28.75], [-51.25, -28.65], [-51.5, -28.75], [-52.02999999999997, -28.53], [-52.18000000000001, -28.18], [-52.25, -28.15], [-52.5, -28.25], [-53.02999999999997, -28.03], [-53.18000000000001, -27.68], [-53.52999999999997, -27.53]]]]}, "2026-02-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-53.52999999999997, -27.53], [-53.75, -27.0], [-53.52999999999997, -26.47], [-53.0, -26.25], [-52.75, -26.35], [-52.5, -26.25], [-52.25, -26.35], [-52.0, -26.25], [-51.75, -26.35], [-51.68000000000001, -26.32], [-51.52999999999997, -25.97], [-51.0, -25.75], [-50.5, -25.96], [-50.0, -25.75], [-49.75, -25.85], [-49.5, -25.75], [-48.97000000000003, -25.97], [-48.75, -26.5], [-48.85000000000002, -26.75], [-48.81999999999999, -26.82], [-48.47000000000003, -26.97], [-48.31999999999999, -27.32], [-47.97000000000003, -27.47], [-47.75, -28.0], [-47.85000000000002, -28.25], [-47.75, -28.5], [-47.85000000000002, -28.75], [-47.75, -29.0], [-47.97000000000003, -29.53], [-48.5, -29.75], [-49.02999999999997, -29.53], [-49.25, -29.0], [-49.14999999999998, -28.75], [-49.18000000000001, -28.68], [-49.25, -28.65], [-49.5, -28.75], [-49.75, -28.65], [-50.0, -28.75], [-50.25, -28.65], [-50.5, -28.75], [-50.75, -28.65], [-51.0, -28.75], [-51.25, -28.65], [-51.5, -28.75], [-52.02999999999997, -28.53], [-52.18000000000001, -28.18], [-52.25, -28.15], [-52.5, -28.25], [-53.02999999999997, -28.03], [-53.18000000000001, -27.68], [-53.52999999999997, -27.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.636906142546479}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.0976196120363615}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.196328735351585, 25.24423987978986, 23.96323165893557]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.14058329264327, 27.953174845377646, 26.978409067789755]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.7024621800119895, 3.8842964339179775, 2.706100222179117]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.539956841980029, 4.636906142546479, 3.256976200652389]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5862619923206993, 2.2945466592725126, 1.6308391250271028]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.056116063665288, 2.76482720718356, 2.2568601499393366]}}