{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:10:34.402133", "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-17_to_2026-Feb-21_303.0_-12.0"}, "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": 2026020002062}, "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 17 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 21 2026"}, "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": 60420.44993364047}, "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": -12.0}, "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": 303.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "303.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 301.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 304.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -13.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -10.75}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-58.53, -10.97], [-58.18, -10.82], [-58.03, -10.47], [-57.5, -10.25], [-57.25, -10.35], [-57.0, -10.25], [-56.47, -10.47], [-56.32, -10.82], [-55.97, -10.97], [-55.75, -11.5], [-55.85, -11.75], [-55.75, -12.0], [-55.85, -12.25], [-55.82, -12.32], [-55.47, -12.47], [-55.25, -13.0], [-55.35, -13.25], [-55.25, -13.5], [-55.47, -14.03], [-56.0, -14.25], [-56.25, -14.15], [-56.5, -14.25], [-57.03, -14.03], [-57.18, -13.68], [-57.53, -13.53], [-57.68, -13.18], [-58.0, -13.04], [-58.5, -13.25], [-59.03, -13.03], [-59.25, -12.5], [-59.15, -12.25], [-59.25, -12.0], [-59.03, -11.47], [-58.68, -11.32], [-58.53, -10.97]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["South-American-Monsoon"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-02-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-58.25, -12.0], [-58.14999999999998, -11.75], [-58.25, -11.5], [-58.14999999999998, -11.25], [-58.25, -11.0], [-58.02999999999997, -10.47], [-57.5, -10.25], [-56.97000000000003, -10.47], [-56.81999999999999, -10.82], [-56.75, -10.85], [-56.5, -10.75], [-55.97000000000003, -10.97], [-55.75, -11.5], [-55.85000000000002, -11.75], [-55.75, -12.0], [-55.85000000000002, -12.25], [-55.81999999999999, -12.32], [-55.47000000000003, -12.47], [-55.25, -13.0], [-55.35000000000002, -13.25], [-55.25, -13.5], [-55.47000000000003, -14.03], [-56.0, -14.25], [-56.25, -14.15], [-56.5, -14.25], [-57.02999999999997, -14.03], [-57.18000000000001, -13.68], [-57.52999999999997, -13.53], [-57.68000000000001, -13.18], [-58.02999999999997, -13.03], [-58.25, -12.5], [-58.14999999999998, -12.25], [-58.25, -12.0]]]]}, "2026-02-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-59.25, -12.0], [-59.02999999999997, -11.47], [-58.68000000000001, -11.32], [-58.52999999999997, -10.97], [-58.18000000000001, -10.82], [-58.02999999999997, -10.47], [-57.5, -10.25], [-57.25, -10.35], [-57.0, -10.25], [-56.47000000000003, -10.47], [-56.31999999999999, -10.82], [-55.97000000000003, -10.97], [-55.75, -11.5], [-55.85000000000002, -11.75], [-55.75, -12.0], [-55.85000000000002, -12.25], [-55.81999999999999, -12.32], [-55.47000000000003, -12.47], [-55.25, -13.0], [-55.35000000000002, -13.25], [-55.25, -13.5], [-55.47000000000003, -14.03], [-56.0, -14.25], [-56.25, -14.15], [-56.5, -14.25], [-57.02999999999997, -14.03], [-57.18000000000001, -13.68], [-57.52999999999997, -13.53], [-57.68000000000001, -13.18], [-58.0, -13.04], [-58.5, -13.25], [-59.02999999999997, -13.03], [-59.25, -12.5], [-59.14999999999998, -12.25], [-59.25, -12.0]]]]}, "2026-02-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-59.25, -12.0], [-59.02999999999997, -11.47], [-58.68000000000001, -11.32], [-58.52999999999997, -10.97], [-58.18000000000001, -10.82], [-58.02999999999997, -10.47], [-57.5, -10.25], [-57.25, -10.35], [-57.0, -10.25], [-56.47000000000003, -10.47], [-56.31999999999999, -10.82], [-55.97000000000003, -10.97], [-55.75, -11.5], [-55.85000000000002, -11.75], [-55.75, -12.0], [-55.85000000000002, -12.25], [-55.81999999999999, -12.32], [-55.47000000000003, -12.47], [-55.25, -13.0], [-55.35000000000002, -13.25], [-55.25, -13.5], [-55.47000000000003, -14.03], [-56.0, -14.25], [-56.25, -14.15], [-56.5, -14.25], [-57.02999999999997, -14.03], [-57.18000000000001, -13.68], [-57.52999999999997, -13.53], [-57.68000000000001, -13.18], [-58.0, -13.04], [-58.5, -13.25], [-59.02999999999997, -13.03], [-59.25, -12.5], [-59.14999999999998, -12.25], [-59.25, -12.0]]]]}, "2026-02-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-59.25, -12.0], [-59.02999999999997, -11.47], [-58.68000000000001, -11.32], [-58.52999999999997, -10.97], [-58.0, -10.75], [-57.75, -10.85], [-57.68000000000001, -10.82], [-57.52999999999997, -10.47], [-57.0, -10.25], [-56.47000000000003, -10.47], [-56.25, -11.0], [-56.35000000000002, -11.25], [-56.25, -11.5], [-56.35000000000002, -11.75], [-56.25, -12.0], [-56.47000000000003, -12.53], [-56.81999999999999, -12.68], [-56.97000000000003, -13.03], [-57.5, -13.25], [-58.0, -13.04], [-58.5, -13.25], [-59.02999999999997, -13.03], [-59.25, -12.5], [-59.14999999999998, -12.25], [-59.25, -12.0]]]]}, "2026-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-59.25, -12.0], [-59.02999999999997, -11.47], [-58.68000000000001, -11.32], [-58.52999999999997, -10.97], [-58.0, -10.75], [-57.75, -10.85], [-57.68000000000001, -10.82], [-57.52999999999997, -10.47], [-57.0, -10.25], [-56.47000000000003, -10.47], [-56.25, -11.0], [-56.35000000000002, -11.25], [-56.25, -11.5], [-56.35000000000002, -11.75], [-56.25, -12.0], [-56.47000000000003, -12.53], [-56.81999999999999, -12.68], [-56.97000000000003, -13.03], [-57.5, -13.25], [-58.0, -13.04], [-58.5, -13.25], [-59.02999999999997, -13.03], [-59.25, -12.5], [-59.14999999999998, -12.25], [-59.25, -12.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.277140750032345}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.679788331982382}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.437169986301, 26.539150492350302, 26.590297953287802, 26.164692687988293, 26.527250925699946]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.732574717203818, 26.970363871256552, 27.087144470214866, 26.60474802652999, 26.959729766845726]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.6340537731224762, 1.7563250212287158, 1.804902664764151, 1.355684119956902, 1.6691923382415155]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.9385122449342589, 2.277140750032345, 2.085365247748257, 1.4748405596233738, 1.88281670974402]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5507377683845818, 1.702209763535477, 1.7644988605778753, 1.3924531306499452, 1.7343398323214316]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8398134571413847, 2.1203270503891605, 1.9806247155908605, 1.4891720476780035, 2.02252334359432]}}