{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:08:54.857797", "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": "2025-Nov-01_to_2025-Nov-06_350.5_6.0"}, "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": 2025110001011}, "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": "November 01 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 06 2025"}, "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": 64422.34565699197}, "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", "Guinea", "Liberia", "Sierra Leone"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "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": 6.0}, "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": 350.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "350.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 349.0}, "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": 6.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 8.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-10.25, 5.85], [-10.5, 5.75], [-11.03, 5.97], [-11.18, 6.32], [-11.53, 6.47], [-11.75, 7.0], [-11.65, 7.25], [-11.75, 7.5], [-11.53, 8.03], [-11.18, 8.18], [-11.03, 8.53], [-10.5, 8.75], [-9.97, 8.53], [-9.82, 8.18], [-9.75, 8.15], [-9.68, 8.18], [-9.53, 8.53], [-9.0, 8.75], [-8.47, 8.53], [-8.32, 8.18], [-7.97, 8.03], [-7.75, 7.5], [-7.85, 7.25], [-7.75, 7.0], [-7.85, 6.75], [-7.75, 6.5], [-7.97, 5.97], [-8.32, 5.82], [-8.47, 5.47], [-9.0, 5.25], [-9.25, 5.35], [-9.5, 5.25], [-10.03, 5.47], [-10.18, 5.82], [-10.25, 5.85]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Western-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-11-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.5, 5.25], [-10.029999999999973, 5.47], [-10.25, 6.0], [-10.029999999999973, 6.53], [-9.5, 6.75], [-9.25, 6.65], [-9.0, 6.75], [-8.470000000000027, 6.53], [-8.25, 6.0], [-8.470000000000027, 5.47], [-9.0, 5.25], [-9.25, 5.35], [-9.5, 5.25]]]]}, "2025-11-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-10.529999999999973, 5.97], [-10.75, 6.5], [-10.529999999999973, 7.03], [-10.0, 7.25], [-9.75, 7.15], [-9.5, 7.25], [-8.970000000000027, 7.03], [-8.819999999999993, 6.68], [-8.470000000000027, 6.53], [-8.25, 6.0], [-8.470000000000027, 5.47], [-9.0, 5.25], [-9.25, 5.35], [-9.5, 5.25], [-10.029999999999973, 5.47], [-10.180000000000007, 5.82], [-10.529999999999973, 5.97]]]]}, "2025-11-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.75, 7.5], [-11.529999999999973, 8.03], [-11.180000000000007, 8.18], [-11.029999999999973, 8.53], [-10.5, 8.75], [-9.970000000000027, 8.53], [-9.819999999999993, 8.18], [-9.75, 8.15], [-9.680000000000007, 8.18], [-9.529999999999973, 8.53], [-9.0, 8.75], [-8.470000000000027, 8.53], [-8.319999999999993, 8.18], [-7.970000000000027, 8.03], [-7.75, 7.5], [-7.850000000000023, 7.25], [-7.75, 7.0], [-7.850000000000023, 6.75], [-7.75, 6.5], [-7.970000000000027, 5.97], [-8.319999999999993, 5.82], [-8.470000000000027, 5.47], [-9.0, 5.25], [-9.25, 5.35], [-9.5, 5.25], [-10.029999999999973, 5.47], [-10.180000000000007, 5.82], [-10.25, 5.85], [-10.5, 5.75], [-11.029999999999973, 5.97], [-11.180000000000007, 6.32], [-11.529999999999973, 6.47], [-11.75, 7.0], [-11.649999999999977, 7.25], [-11.75, 7.5]]]]}, "2025-11-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.75, 7.5], [-11.529999999999973, 8.03], [-11.180000000000007, 8.18], [-11.029999999999973, 8.53], [-10.5, 8.75], [-9.970000000000027, 8.53], [-9.819999999999993, 8.18], [-9.75, 8.15], [-9.680000000000007, 8.18], [-9.529999999999973, 8.53], [-9.0, 8.75], [-8.470000000000027, 8.53], [-8.319999999999993, 8.18], [-7.970000000000027, 8.03], [-7.75, 7.5], [-7.850000000000023, 7.25], [-7.75, 7.0], [-7.850000000000023, 6.75], [-7.75, 6.5], [-7.970000000000027, 5.97], [-8.319999999999993, 5.82], [-8.470000000000027, 5.47], [-9.0, 5.25], [-9.25, 5.35], [-9.5, 5.25], [-10.029999999999973, 5.47], [-10.180000000000007, 5.82], [-10.25, 5.85], [-10.5, 5.75], [-11.029999999999973, 5.97], [-11.180000000000007, 6.32], [-11.529999999999973, 6.47], [-11.75, 7.0], [-11.649999999999977, 7.25], [-11.75, 7.5]]]]}, "2025-11-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.75, 7.5], [-11.529999999999973, 8.03], [-11.180000000000007, 8.18], [-11.029999999999973, 8.53], [-10.5, 8.75], [-9.970000000000027, 8.53], [-9.819999999999993, 8.18], [-9.75, 8.15], [-9.680000000000007, 8.18], [-9.529999999999973, 8.53], [-9.0, 8.75], [-8.470000000000027, 8.53], [-8.319999999999993, 8.18], [-7.970000000000027, 8.03], [-7.75, 7.5], [-7.850000000000023, 7.25], [-7.75, 7.0], [-7.850000000000023, 6.75], [-7.75, 6.5], [-7.970000000000027, 5.97], [-8.319999999999993, 5.82], [-8.470000000000027, 5.47], [-9.0, 5.25], [-9.25, 5.35], [-9.5, 5.25], [-10.029999999999973, 5.47], [-10.180000000000007, 5.82], [-10.25, 5.85], [-10.5, 5.75], [-11.029999999999973, 5.97], [-11.180000000000007, 6.32], [-11.529999999999973, 6.47], [-11.75, 7.0], [-11.649999999999977, 7.25], [-11.75, 7.5]]]]}, "2025-11-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.75, 8.0], [-9.529999999999973, 8.53], [-9.0, 8.75], [-8.470000000000027, 8.53], [-8.319999999999993, 8.18], [-7.970000000000027, 8.03], [-7.75, 7.5], [-7.970000000000027, 6.97], [-8.5, 6.75], [-8.75, 6.85], [-9.0, 6.75], [-9.529999999999973, 6.97], [-9.75, 7.5], [-9.649999999999977, 7.75], [-9.75, 8.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.3495006102875777}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.9778744234198018}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.839761352539085, 25.775482432047568, 25.85102282327324, 25.802488066658157, 26.052141534714508, 25.272323438856404]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.06746317545577, 26.030894215901696, 26.42512919108077, 26.400055185953818, 26.47486521402999, 25.52576853434249]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.7326446306160506, 0.7372064062291201, 0.9866545101369406, 0.8994403883434372, 1.1333264645970027, 0.8616649918173872]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.7339240533997895, 0.7918110448305811, 1.2228198434331716, 1.1833419629099353, 1.3495006102875777, 0.8996528695976735]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.391271399567621, 1.3306012012457547, 1.7114177282049354, 1.5578081723755317, 1.9332527781449176, 1.4988133301247248]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4100509230749954, 1.4026249769844827, 2.114241750194134, 1.946678416013239, 2.319127197070337, 1.5823013581658794]}}