{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:12:29.782198", "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": "2020-Mar-22_to_2020-Mar-25_18.5_-26.5"}, "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": 2020030002377}, "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": "March 22 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 25 2020"}, "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": 79910.28169626436}, "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": ["Namibia", "South Africa"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "Africa"]}, "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": -26.5}, "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": 18.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "18.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 18.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 22.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -28.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -25.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[19.25, -28.5], [19.354, -28.251], [19.354, -28.25], [19.323, -28.177], [18.97, -28.03], [18.823, -27.677], [18.75, -27.646], 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time step", "value": {"2020-03-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.53033008588991, -29.03033008588991], [20.0, -29.25], [19.46966991411009, -29.03033008588991], [19.25, -28.5], [19.46966991411009, -27.96966991411009], [20.0, -27.75], [20.53033008588991, -27.96966991411009], [20.75, -28.5], [20.53033008588991, -29.03033008588991]]], [[[19.03033008588991, -27.53033008588991], [18.5, -27.75], [17.96966991411009, -27.53033008588991], [17.75, -27.0], [17.96966991411009, -26.46966991411009], [18.5, -26.25], [19.03033008588991, -26.46966991411009], [19.25, -27.0], [19.03033008588991, -27.53033008588991]]]]}, "2020-03-23T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[17.353553390593273, -26.25], [17.25, -26.0], [17.353553390593273, -25.75], [17.25, -25.5], [17.46966991411009, -24.96966991411009], [18.0, -24.75], [18.25, -24.853553390593273], [18.5, -24.75], [19.03033008588991, -24.96966991411009], [19.17677669529664, -25.32322330470336], 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maximum t2m.", "value": [29.686209951915373, 29.89341256413013, 30.30077512374362, 30.36312124069258]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.6100992203494116, 3.6919526702998544, 4.212049051422006, 4.691837863636463]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.9067725620508327, 4.423046170166401, 5.487863525184764, 5.694410373499977]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2345914313721877, 1.2919922995513595, 1.4558782939626311, 1.6379339116896818]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3172351091745473, 1.5128921927202794, 1.7450429194332624, 2.0425920936237354]}}