{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-05-20 10:52:34.181794", "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-Apr-26_to_2026-May-02_318.5_-21.5"}, "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": 2026040002658}, "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 26 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 02 2026"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 54641.46175125881}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South 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": ["South 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": -21.5}, "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": 318.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "318.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 313.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 319.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -22.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -20.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-04-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-42.03, -20.97], [-41.5, -20.75], [-41.25, -20.85], [-41.0, 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-21.0], [-44.97, -21.53], [-45.5, -21.75], [-46.03, -21.53], [-46.25, -21.0]]]]}, "2026-05-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-42.03, -22.03], [-42.25, -21.5], [-42.03, -20.97], [-41.5, -20.75], [-40.97, -20.97], [-40.75, -21.5], [-40.97, -22.03], [-41.5, -22.25], [-42.03, -22.03]]], [[[-46.03, -21.53], [-46.25, -21.0], [-46.03, -20.47], [-45.5, -20.25], [-44.97, -20.47], [-44.75, -21.0], [-44.97, -21.53], [-45.5, -21.75], [-46.03, -21.53]]]]}, "2026-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-41.5, -20.75], [-40.97, -20.97], [-40.75, -21.5], [-40.97, -22.03], [-41.5, -22.25], [-42.03, -22.03], [-42.25, -21.5], [-42.03, -20.97], [-41.5, -20.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.0563147923713245}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.585229019249711}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.847088114420558, 24.24706434283337, 24.030535299736187, 23.675187816954463, 23.465725199381495, 24.61838811238613, 26.56466954549154]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.33880767822268, 28.351787821451865, 27.848072306315146, 27.427534993489587, 26.946824645996116, 26.948018646240257, 26.56466954549154]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.3449562484202033, 2.720709175420905, 2.629208579196565, 2.449460252894055, 2.5064297035706176, 2.6354222179961084, 2.931002922305879]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.9843303254398847, 4.0563147923713245, 3.761973424611881, 3.2954673381643147, 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