{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:00:39.229550", "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": "2024-Aug-08_to_2024-Aug-13_348.0_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": 2024080001615}, "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": "August 08 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 13 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 72305.76220163214}, "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": ["Guinea", "Mali", "Senegal"]}, "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": []}, "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": 348.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "348.0\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": 351.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 11.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 14.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-12.75, 12.65], [-12.68, 12.68], [-12.65, 12.75], [-12.75, 13.0], [-12.65, 13.25], [-12.75, 13.5], [-12.53, 14.03], [-12.0, 14.25], [-11.47, 14.03], [-11.3, 13.63], [-11.18, 13.68], [-11.15, 13.75], [-11.25, 14.0], [-11.03, 14.53], [-10.5, 14.75], [-10.25, 14.65], [-10.0, 14.75], [-9.75, 14.65], [-9.5, 14.75], [-9.25, 14.65], [-9.0, 14.75], [-8.75, 14.65], [-8.5, 14.75], [-7.97, 14.53], [-7.75, 14.0], [-7.85, 13.75], [-7.75, 13.5], [-7.97, 12.97], [-8.5, 12.75], [-8.75, 12.85], [-9.0, 12.75], [-9.25, 12.85], [-9.5, 12.75], [-9.75, 12.85], [-9.82, 12.82], [-9.97, 12.47], [-10.32, 12.32], [-10.47, 11.97], [-10.82, 11.82], [-10.97, 11.47], [-11.32, 11.32], [-11.35, 11.25], [-11.25, 11.0], [-11.47, 10.47], [-12.0, 10.25], [-12.53, 10.47], [-12.7, 10.88], [-13.0, 10.75], [-13.53, 10.97], [-13.75, 11.5], [-13.65, 11.75], [-13.75, 12.0], [-13.53, 12.53], [-13.0, 12.75], [-12.75, 12.65]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "Western-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-08-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.75, 12.5], [-12.529999999999973, 13.03], [-12.0, 13.25], [-11.470000000000027, 13.03], [-11.25, 12.5], [-11.350000000000023, 12.25], [-11.25, 12.0], [-11.470000000000027, 11.47], [-12.0, 11.25], [-12.529999999999973, 11.47], [-12.75, 12.0], [-12.649999999999977, 12.25], [-12.75, 12.5]]]]}, "2024-08-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.75, 12.5], [-12.529999999999973, 13.03], [-12.0, 13.25], [-11.75, 13.15], [-11.680000000000007, 13.18], [-11.529999999999973, 13.53], [-11.180000000000007, 13.68], [-11.149999999999977, 13.75], [-11.25, 14.0], [-11.029999999999973, 14.53], [-10.5, 14.75], [-10.25, 14.65], [-10.0, 14.75], [-9.470000000000027, 14.53], [-9.319999999999993, 14.18], [-9.25, 14.15], [-9.0, 14.25], [-8.75, 14.15], [-8.5, 14.25], [-7.970000000000027, 14.03], [-7.75, 13.5], [-7.970000000000027, 12.97], [-8.5, 12.75], [-8.75, 12.85], [-9.0, 12.75], [-9.25, 12.85], [-9.5, 12.75], [-9.75, 12.85], [-9.819999999999993, 12.82], [-9.970000000000027, 12.47], [-10.319999999999993, 12.32], [-10.470000000000027, 11.97], [-10.819999999999993, 11.82], [-10.970000000000027, 11.47], [-11.5, 11.25], [-11.75, 11.35], [-12.0, 11.25], [-12.529999999999973, 11.47], [-12.75, 12.0], [-12.649999999999977, 12.25], [-12.75, 12.5]]]]}, "2024-08-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.75, 12.5], [-12.529999999999973, 13.03], [-12.0, 13.25], [-11.75, 13.15], [-11.680000000000007, 13.18], [-11.529999999999973, 13.53], [-11.180000000000007, 13.68], [-11.149999999999977, 13.75], [-11.25, 14.0], [-11.029999999999973, 14.53], [-10.5, 14.75], [-10.25, 14.65], [-10.0, 14.75], [-9.75, 14.65], [-9.5, 14.75], [-9.25, 14.65], [-9.0, 14.75], [-8.75, 14.65], [-8.5, 14.75], [-7.970000000000027, 14.53], [-7.75, 14.0], [-7.850000000000023, 13.75], [-7.75, 13.5], [-7.970000000000027, 12.97], [-8.5, 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[-13.649999999999977, 11.75], [-13.75, 12.0]]]]}, "2024-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-13.75, 12.0], [-13.529999999999973, 12.53], [-13.0, 12.75], [-12.75, 12.65], [-12.680000000000007, 12.68], [-12.649999999999977, 12.75], [-12.75, 13.0], [-12.649999999999977, 13.25], [-12.75, 13.5], [-12.529999999999973, 14.03], [-12.0, 14.25], [-11.470000000000027, 14.03], [-11.25, 13.5], [-11.350000000000023, 13.25], [-11.25, 13.0], [-11.350000000000023, 12.75], [-11.25, 12.5], [-11.350000000000023, 12.25], [-11.25, 12.0], [-11.350000000000023, 11.75], [-11.25, 11.5], [-11.350000000000023, 11.25], [-11.25, 11.0], [-11.470000000000027, 10.47], [-12.0, 10.25], [-12.529999999999973, 10.47], [-12.699999999999989, 10.88], [-13.0, 10.75], [-13.529999999999973, 10.97], [-13.75, 11.5], [-13.649999999999977, 11.75], [-13.75, 12.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.8409946186088746}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.6892281527623185}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.17486008844685, 28.331133426701626, 27.88496940867134, 27.364338296281005, 27.611371897684023, 26.262991586780743]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.85020196137458, 29.101267588447456, 29.216561256999228, 29.0039224243813, 29.35270340674407, 29.029708703751453]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.3765556197272986, 2.0891128707491475, 1.5443377119294088, 1.5342932547986312, 1.8316943657414366, 1.4435998136560468]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.383870740608188, 2.8409946186088746, 2.073339086447902, 1.9469151544600436, 2.447393712623125, 1.8619995308095554]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5187691762001323, 2.04408831419068, 1.443571369096944, 1.5419919888590776, 1.9430588532147484, 1.7322268101860185]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.540150550745585, 3.266823207413328, 1.6455421031144968, 1.8270764203920618, 3.3259162005381366, 2.339392306661782]}}