{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:51:59.437236", "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": "2023-Mar-07_to_2023-Mar-13_349.5_7.0"}, "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": 2023030001535}, "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 07 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 13 2023"}, "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": 82932.62161043848}, "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": ["C\u00f4te d'Ivoire", "Liberia", "Sierra Leone"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "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": ["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": 7.0}, "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": 349.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "349.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 347.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 352.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 5.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 7.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-13.75, 6.0], [-13.53, 6.53], [-13.0, 6.75], [-12.47, 6.53], [-12.32, 6.18], [-12.25, 6.15], [-12.18, 6.18], [-12.03, 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vertices describing the boundary of the event at each time step", "value": {"2023-03-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.5, 4.75], [-13.029999999999973, 4.97], [-13.25, 5.5], [-13.029999999999973, 6.03], [-12.5, 6.25], [-12.25, 6.15], [-12.180000000000007, 6.18], [-12.029999999999973, 6.53], [-11.5, 6.75], [-11.25, 6.65], [-11.0, 6.75], [-10.470000000000027, 6.53], [-10.25, 6.0], [-10.470000000000027, 5.47], [-10.819999999999993, 5.32], [-10.970000000000027, 4.97], [-11.5, 4.75], [-11.75, 4.85], [-12.0, 4.75], [-12.25, 4.85], [-12.5, 4.75]]]]}, "2023-03-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.529999999999973, 5.47], [-13.75, 6.0], [-13.529999999999973, 6.53], [-13.0, 6.75], [-12.470000000000027, 6.53], [-12.319999999999993, 6.18], [-12.25, 6.15], [-12.180000000000007, 6.18], [-12.029999999999973, 6.53], [-11.680000000000007, 6.68], [-11.649999999999977, 6.75], [-11.680000000000007, 6.82], [-12.029999999999973, 6.97], 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27.699050848672528, 27.26117789991895, 27.902536693316506]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.207625318516136, 29.218327736954677, 29.167035850494756, 28.922978964511742, 28.419589740020513, 27.26117789991895, 27.902536693316506]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.9176259853091778, 1.4905117306099838, 1.4552320127555751, 1.429441449751646, 1.33220999966953, 1.3048808126077915, 1.9277138942257466]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.0296874002081609, 2.12529722073009, 2.2130831893486516, 1.943037357763103, 1.4592111909240657, 1.3048808126077915, 1.9277138942257466]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4987225449765802, 1.8291394312100324, 1.7948818265535333, 1.7468715126372623, 1.3738676710974735, 1.4509747645931972, 2.1317577735188613]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.710253986612212, 2.283582197231126, 2.1976901548845915, 2.2156704171570074, 1.439936525028765, 1.4509747645931972, 2.1317577735188613]}}