{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:52:11.494582", "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-31_to_2023-Apr-05_354.5_5.0"}, "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": 2023030002743}, "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 31 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 05 2023"}, "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": 55464.71166671454}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": 5.0}, "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": 354.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "354.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 353.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 357.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 4.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 5.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-7.0, 5.25], [-6.75, 5.15], [-6.68, 5.18], [-6.53, 5.53], [-6.0, 5.75], [-5.75, 5.65], [-5.5, 5.75], [-5.25, 5.65], [-5.0, 5.75], [-4.5, 5.54], [-4.0, 5.75], [-3.75, 5.65], [-3.5, 5.75], [-2.97, 5.53], [-2.82, 5.18], [-2.47, 5.03], [-2.25, 4.5], [-2.47, 3.97], [-3.0, 3.75], [-3.25, 3.85], [-3.32, 3.82], [-3.47, 3.47], [-4.0, 3.25], [-4.25, 3.35], [-4.5, 3.25], [-5.03, 3.47], [-5.18, 3.82], [-5.25, 3.85], [-5.32, 3.82], [-5.47, 3.47], [-6.0, 3.25], [-6.25, 3.35], [-6.5, 3.25], [-7.03, 3.47], [-7.18, 3.82], [-7.53, 3.97], [-7.75, 4.5], [-7.53, 5.03], [-7.0, 5.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Western-Africa", "Equatorial.Atlantic-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-03-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.5299999999999727, 5.03], [-3.0, 5.25], [-2.4700000000000273, 5.03], [-2.25, 4.5], [-2.4700000000000273, 3.97], [-3.0, 3.75], [-3.5299999999999727, 3.97], [-3.75, 4.5], [-3.5299999999999727, 5.03]]]]}, "2023-04-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.5299999999999727, 5.03], [-3.0, 5.25], [-2.4700000000000273, 5.03], [-2.25, 4.5], [-2.4700000000000273, 3.97], [-3.0, 3.75], [-3.5299999999999727, 3.97], [-3.75, 4.5], [-3.5299999999999727, 5.03]]]]}, "2023-04-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-7.529999999999973, 3.97], [-7.75, 4.5], [-7.529999999999973, 5.03], [-7.0, 5.25], [-6.75, 5.15], [-6.680000000000007, 5.18], [-6.529999999999973, 5.53], [-6.0, 5.75], [-5.75, 5.65], [-5.5, 5.75], [-5.25, 5.65], [-5.0, 5.75], [-4.5, 5.54], [-4.0, 5.75], [-3.75, 5.65], [-3.5, 5.75], [-2.9700000000000273, 5.53], [-2.819999999999993, 5.18], [-2.4700000000000273, 5.03], [-2.25, 4.5], [-2.4700000000000273, 3.97], [-3.0, 3.75], [-3.25, 3.85], [-3.319999999999993, 3.82], [-3.4700000000000273, 3.47], [-4.0, 3.25], [-4.25, 3.35], [-4.5, 3.25], [-5.029999999999973, 3.47], [-5.180000000000007, 3.82], [-5.25, 3.85], [-5.319999999999993, 3.82], [-5.470000000000027, 3.47], [-6.0, 3.25], [-6.25, 3.35], [-6.5, 3.25], [-7.029999999999973, 3.47], [-7.180000000000007, 3.82], [-7.529999999999973, 3.97]]]]}, "2023-04-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-7.529999999999973, 3.97], [-7.75, 4.5], [-7.529999999999973, 5.03], [-7.0, 5.25], [-6.75, 5.15], [-6.680000000000007, 5.18], [-6.529999999999973, 5.53], [-6.0, 5.75], [-5.75, 5.65], [-5.5, 5.75], [-5.25, 5.65], [-5.0, 5.75], [-4.5, 5.54], [-4.0, 5.75], [-3.75, 5.65], [-3.5, 5.75], [-2.9700000000000273, 5.53], [-2.75, 5.0], [-2.8500000000000227, 4.75], [-2.75, 4.5], [-2.9700000000000273, 3.97], [-3.319999999999993, 3.82], [-3.4700000000000273, 3.47], [-4.0, 3.25], [-4.25, 3.35], [-4.5, 3.25], [-5.029999999999973, 3.47], [-5.180000000000007, 3.82], [-5.25, 3.85], [-5.319999999999993, 3.82], [-5.470000000000027, 3.47], [-6.0, 3.25], [-6.25, 3.35], [-6.5, 3.25], [-7.029999999999973, 3.47], [-7.180000000000007, 3.82], [-7.529999999999973, 3.97]]]]}, "2023-04-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-7.529999999999973, 3.97], [-7.75, 4.5], [-7.529999999999973, 5.03], [-7.0, 5.25], [-6.75, 5.15], [-6.680000000000007, 5.18], [-6.529999999999973, 5.53], [-6.0, 5.75], [-5.75, 5.65], [-5.5, 5.75], [-5.25, 5.65], [-5.0, 5.75], [-4.5, 5.54], [-4.0, 5.75], [-3.75, 5.65], [-3.5, 5.75], [-2.9700000000000273, 5.53], [-2.75, 5.0], [-2.8500000000000227, 4.75], [-2.75, 4.5], [-2.9700000000000273, 3.97], [-3.319999999999993, 3.82], [-3.4700000000000273, 3.47], [-4.0, 3.25], [-4.25, 3.35], [-4.5, 3.25], [-5.029999999999973, 3.47], [-5.180000000000007, 3.82], [-5.25, 3.85], [-5.319999999999993, 3.82], [-5.470000000000027, 3.47], [-6.0, 3.25], [-6.25, 3.35], [-6.5, 3.25], [-7.029999999999973, 3.47], [-7.180000000000007, 3.82], [-7.529999999999973, 3.97]]]]}, "2023-04-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-5.5, 4.25], [-6.029999999999973, 4.47], [-6.25, 5.0], [-6.029999999999973, 5.53], [-5.5, 5.75], [-4.970000000000027, 5.53], [-4.75, 5.0], [-4.970000000000027, 4.47], [-5.5, 4.25]]], [[[-3.5, 4.25], [-4.029999999999973, 4.47], [-4.25, 5.0], [-4.029999999999973, 5.53], [-3.5, 5.75], [-2.9700000000000273, 5.53], [-2.75, 5.0], [-2.9700000000000273, 4.47], [-3.5, 4.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.0408254151747656}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.7693309874015911}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.372572177432176, 28.319125649276145, 28.208260732411418, 28.2982022118876, 28.269610317346803, 28.15856732764928]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.372572177432176, 28.319125649276145, 28.46357283736654, 28.544607783620506, 28.552718651762405, 28.392713343872515]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.6698802359736646, 0.6394334703797995, 0.7271802019221462, 0.8204194332914968, 0.7843179997340011, 0.7017207960517737]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.6698802359736646, 0.6394334703797995, 0.835588253041351, 1.0408254151747656, 0.9172608833004574, 0.7699008022961493]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2839455703825957, 1.2170743236717139, 1.4408050350366777, 1.6404989523608953, 1.5006829705957576, 1.3022361219923284]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2839455703825957, 1.2170743236717139, 1.6713510595619339, 1.9552530569653597, 1.7299845686493849, 1.4062942378753358]}}