{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:04:32.292068", "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-Apr-01_to_2025-Apr-04_307.0_-6.0"}, "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": 2025040000888}, "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": "April 01 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 04 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 58383.617417319554}, "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": -6.0}, "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": 307.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "307.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 305.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 308.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -7.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -5.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-54.75, -5.35], [-54.5, -5.25], [-54.25, -5.35], [-54.18, -5.32], [-54.03, -4.97], [-53.5, -4.75], [-53.25, -4.85], [-53.0, -4.75], [-52.75, -4.85], [-52.5, -4.75], [-52.25, -4.85], [-52.0, -4.75], [-51.47, -4.97], [-51.25, -5.5], [-51.47, -6.03], [-51.82, -6.18], [-51.85, -6.25], [-51.75, -6.5], [-51.97, -7.03], [-52.5, -7.25], [-52.75, -7.15], [-52.82, -7.18], [-52.97, -7.53], [-53.5, -7.75], [-53.75, -7.65], [-54.0, -7.75], [-54.25, -7.65], [-54.5, -7.75], [-55.03, -7.53], [-55.18, -7.18], [-55.53, -7.03], [-55.75, -6.5], [-55.65, -6.25], [-55.75, -6.0], [-55.53, -5.47], [-55.0, -5.25], [-54.75, -5.35]]]]}}, "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": {"2025-04-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-54.02999999999997, -6.03], [-54.25, -5.5], [-54.02999999999997, -4.97], [-53.5, -4.75], [-53.25, -4.85], [-53.0, -4.75], [-52.75, -4.85], [-52.5, -4.75], [-52.25, -4.85], [-52.0, -4.75], [-51.47000000000003, -4.97], [-51.25, -5.5], [-51.47000000000003, -6.03], [-51.81999999999999, -6.18], [-51.85000000000002, -6.25], [-51.75, -6.5], [-51.97000000000003, -7.03], [-52.5, -7.25], [-53.02999999999997, -7.03], [-53.18000000000001, -6.68], [-53.52999999999997, -6.53], [-53.68000000000001, -6.18], [-54.02999999999997, -6.03]]]]}, "2025-04-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-55.75, -6.0], [-55.52999999999997, -5.47], [-55.0, -5.25], [-54.75, -5.35], [-54.5, -5.25], [-54.25, -5.35], [-54.18000000000001, -5.32], [-54.02999999999997, -4.97], [-53.5, -4.75], [-53.25, -4.85], [-53.0, -4.75], [-52.75, -4.85], [-52.5, -4.75], [-52.25, -4.85], [-52.0, -4.75], [-51.47000000000003, -4.97], [-51.25, -5.5], [-51.47000000000003, -6.03], [-51.81999999999999, -6.18], [-51.85000000000002, -6.25], [-51.75, -6.5], [-51.97000000000003, -7.03], [-52.5, -7.25], [-52.75, -7.15], [-52.81999999999999, -7.18], [-52.97000000000003, -7.53], [-53.5, -7.75], [-53.75, -7.65], [-54.0, -7.75], [-54.25, -7.65], [-54.5, -7.75], [-55.02999999999997, -7.53], [-55.18000000000001, -7.18], [-55.52999999999997, -7.03], [-55.75, -6.5], [-55.64999999999998, -6.25], [-55.75, -6.0]]]]}, "2025-04-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-55.75, -6.0], [-55.52999999999997, -5.47], [-55.0, -5.25], [-54.75, -5.35], [-54.5, -5.25], [-54.25, -5.35], [-54.18000000000001, -5.32], [-54.02999999999997, -4.97], [-53.5, -4.75], [-53.25, -4.85], [-53.0, -4.75], [-52.75, -4.85], [-52.5, -4.75], [-52.25, -4.85], [-52.0, -4.75], [-51.47000000000003, -4.97], [-51.25, -5.5], [-51.47000000000003, -6.03], [-51.81999999999999, -6.18], [-51.85000000000002, -6.25], [-51.75, -6.5], [-51.97000000000003, -7.03], [-52.5, -7.25], [-52.75, -7.15], [-52.81999999999999, -7.18], [-52.97000000000003, -7.53], [-53.5, -7.75], [-53.75, -7.65], [-54.0, -7.75], [-54.25, -7.65], [-54.5, -7.75], [-55.02999999999997, -7.53], [-55.18000000000001, -7.18], [-55.52999999999997, -7.03], [-55.75, -6.5], [-55.64999999999998, -6.25], [-55.75, -6.0]]]]}, "2025-04-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-55.75, -6.0], [-55.52999999999997, -5.47], [-55.0, -5.25], [-54.75, -5.35], [-54.5, -5.25], [-54.25, -5.35], [-54.0, -5.25], [-53.75, -5.35], [-53.68000000000001, -5.32], [-53.52999999999997, -4.97], [-53.0, -4.75], [-52.47000000000003, -4.97], [-52.31999999999999, -5.32], [-51.97000000000003, -5.47], [-51.75, -6.0], [-51.85000000000002, -6.25], [-51.75, -6.5], [-51.97000000000003, -7.03], [-52.5, -7.25], [-52.75, -7.15], [-52.81999999999999, -7.18], [-52.97000000000003, -7.53], [-53.5, -7.75], [-53.75, -7.65], [-54.0, -7.75], [-54.25, -7.65], [-54.5, -7.75], [-55.02999999999997, -7.53], [-55.18000000000001, -7.18], [-55.52999999999997, -7.03], [-55.75, -6.5], [-55.64999999999998, -6.25], [-55.75, -6.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.6882442762302503}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.7262708288610258}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.19885079520094, 26.392943452533927, 27.336287702593893, 26.473723347981775]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.521651204427087, 26.839707946777366, 27.88069559733077, 26.88860982259115]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.210466522239439, 1.4661675730091768, 2.3771706996960202, 1.4878642327154843]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.3797140334179403, 1.8583465758036368, 2.6882442762302503, 1.9052166423321069]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.402014028496169, 1.7547325121511812, 2.8434360146865667, 1.7803858940793726]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.546962551472549, 2.2277660492485865, 3.332517999629369, 2.220606837998777]}}