{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:55:53.898525", "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-Jun-03_to_2025-Jun-10_343.5_10.0"}, "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": 2025060001312}, "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": "June 03 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 10 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 360585.2024039909}, "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", "Guinea-Bissau", "Liberia", "Sierra Leone"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Western-Africa"]}, "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": ["North 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": 10.0}, "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": 343.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "343.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 341.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 352.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 5.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 11.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-15.97, 10.53], [-15.75, 10.0], [-15.97, 9.47], [-16.32, 9.32], [-16.47, 8.97], [-17.0, 8.75], [-17.53, 8.97], [-17.75, 9.5], [-17.53, 10.03], [-17.18, 10.18], [-17.03, 10.53], [-16.5, 10.75], [-15.97, 10.53]]], [[[-14.53, 9.47], [-14.75, 10.0], [-14.53, 10.53], [-14.0, 10.75], [-13.47, 10.53], [-13.25, 10.0], [-13.47, 9.47], [-14.0, 9.25], [-14.53, 9.47]]]]}, "2025-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-16.5, 10.75], [-16.25, 10.65], [-16.0, 10.75], [-15.47, 10.53], [-15.3, 10.12], [-15.0, 10.25], [-14.7, 10.12], [-14.53, 10.53], [-14.0, 10.75], [-13.47, 10.53], [-13.25, 10.0], [-13.47, 9.47], [-14.0, 9.25], [-14.3, 9.38], [-14.47, 8.97], [-15.0, 8.75], [-15.53, 8.97], [-15.7, 9.38], [-16.0, 9.25], [-16.25, 9.35], [-16.32, 9.32], [-16.47, 8.97], [-17.0, 8.75], [-17.53, 8.97], [-17.75, 9.5], [-17.53, 10.03], [-17.18, 10.18], [-17.03, 10.53], [-16.5, 10.75]]]]}, "2025-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-18.0, 11.75], [-17.47, 11.53], [-17.32, 11.18], [-17.25, 11.15], [-17.0, 11.25], [-16.75, 11.15], [-16.68, 11.18], [-16.53, 11.53], [-16.18, 11.68], [-16.03, 12.03], [-15.5, 12.25], [-14.97, 12.03], [-14.75, 11.5], [-14.85, 11.25], [-14.75, 11.0], [-14.93, 10.57], [-14.5, 10.75], [-14.25, 10.65], [-14.0, 10.75], [-13.47, 10.53], [-13.25, 10.0], [-13.35, 9.75], [-13.25, 9.5], [-13.47, 8.97], [-13.82, 8.82], [-13.97, 8.47], [-14.5, 8.25], [-15.03, 8.47], [-15.18, 8.82], [-15.53, 8.97], [-15.7, 9.38], [-16.0, 9.25], [-16.25, 9.35], [-16.32, 9.32], [-16.47, 8.97], [-17.0, 8.75], [-17.53, 8.97], [-17.75, 9.5], [-17.65, 9.75], [-17.68, 9.82], [-17.75, 9.85], [-18.0, 9.75], [-18.25, 9.85], [-18.5, 9.75], [-19.03, 9.97], [-19.25, 10.5], [-19.03, 11.03], [-18.68, 11.18], [-18.53, 11.53], [-18.0, 11.75]], [[-15.07, 10.43], [-15.37, 10.3], [-15.3, 10.12], [-15.18, 10.18], [-15.07, 10.43]]]]}, "2025-06-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-11.18, 7.68], [-11.03, 8.03], [-10.5, 8.25], [-10.25, 8.15], [-10.18, 8.18], [-10.03, 8.53], [-9.5, 8.75], [-9.25, 8.65], [-9.0, 8.75], [-8.75, 8.65], [-8.5, 8.75], [-7.97, 8.53], [-7.75, 8.0], [-7.97, 7.47], [-8.32, 7.32], [-8.35, 7.25], [-8.25, 7.0], [-8.35, 6.75], [-8.25, 6.5], [-8.47, 5.97], [-9.0, 5.75], [-9.25, 5.85], [-9.5, 5.75], [-9.75, 5.85], [-10.0, 5.75], [-10.25, 5.85], [-10.5, 5.75], [-10.75, 5.85], [-11.0, 5.75], [-11.53, 5.97], [-11.75, 6.5], [-11.65, 6.75], [-11.75, 7.0], [-11.53, 7.53], [-11.18, 7.68]]], [[[-17.32, 11.18], [-17.25, 11.15], [-17.0, 11.25], [-16.75, 11.15], [-16.68, 11.18], [-16.53, 11.53], [-16.18, 11.68], [-16.03, 12.03], [-15.5, 12.25], [-14.97, 12.03], [-14.82, 11.68], [-14.47, 11.53], [-14.25, 11.0], [-14.37, 10.7], [-14.25, 10.65], [-14.0, 10.75], [-13.47, 10.53], [-13.32, 10.18], [-12.97, 10.03], [-12.75, 9.5], [-12.85, 9.25], [-12.75, 9.0], [-12.97, 8.47], [-13.32, 8.32], [-13.35, 8.25], [-13.25, 8.0], [-13.47, 7.47], [-14.0, 7.25], [-14.25, 7.35], [-14.32, 7.32], [-14.47, 6.97], [-15.0, 6.75], [-15.25, 6.85], [-15.5, 6.75], [-15.75, 6.85], [-16.0, 6.75], [-16.25, 6.85], [-16.5, 6.75], [-17.03, 6.97], [-17.25, 7.5], [-17.12, 7.8], [-17.25, 7.85], [-17.5, 7.75], [-18.03, 7.97], [-18.25, 8.5], [-18.03, 9.03], [-17.62, 9.2], [-17.75, 9.5], [-17.65, 9.75], [-17.68, 9.82], [-17.75, 9.85], [-18.0, 9.75], [-18.25, 9.85], [-18.5, 9.75], [-19.03, 9.97], [-19.25, 10.5], [-19.03, 11.03], [-18.68, 11.18], [-18.53, 11.53], [-18.0, 11.75], [-17.47, 11.53], [-17.32, 11.18]], [[-15.25, 10.35], [-15.37, 10.3], [-15.32, 10.18], [-15.25, 10.15], [-15.18, 10.18], [-15.12, 10.3], [-15.25, 10.35]], [[-16.18, 8.32], [-16.3, 8.38], [-16.37, 8.2], [-16.25, 8.15], [-16.18, 8.18], [-16.15, 8.25], [-16.18, 8.32]]], [[[-10.5, 10.75], [-9.97, 10.53], [-9.75, 10.0], [-9.97, 9.47], [-10.5, 9.25], [-10.75, 9.35], [-10.82, 9.32], [-10.97, 8.97], [-11.5, 8.75], [-12.03, 8.97], [-12.25, 9.5], [-12.03, 10.03], [-11.68, 10.18], [-11.53, 10.53], [-11.0, 10.75], [-10.75, 10.65], [-10.5, 10.75]]]]}, "2025-06-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-18.0, 11.75], [-17.47, 11.53], [-17.32, 11.18], [-17.25, 11.15], [-17.0, 11.25], [-16.75, 11.15], [-16.68, 11.18], [-16.53, 11.53], [-16.18, 11.68], [-16.03, 12.03], [-15.5, 12.25], [-14.97, 12.03], [-14.82, 11.68], [-14.47, 11.53], [-14.25, 11.0], [-14.37, 10.7], [-14.25, 10.65], [-14.0, 10.75], [-13.47, 10.53], [-13.32, 10.18], [-12.97, 10.03], [-12.8, 9.62], [-12.5, 9.75], [-12.25, 9.65], [-12.18, 9.68], [-12.03, 10.03], [-11.68, 10.18], [-11.53, 10.53], [-11.0, 10.75], [-10.75, 10.65], [-10.5, 10.75], [-9.97, 10.53], [-9.75, 10.0], [-9.85, 9.75], [-9.75, 9.5], [-9.85, 9.25], [-9.82, 9.18], [-9.75, 9.15], [-9.5, 9.25], [-9.25, 9.15], [-9.0, 9.25], [-8.75, 9.15], [-8.5, 9.25], [-7.97, 9.03], [-7.75, 8.5], [-7.85, 8.25], [-7.75, 8.0], [-7.97, 7.47], [-8.32, 7.32], [-8.35, 7.25], [-8.25, 7.0], [-8.35, 6.75], [-8.25, 6.5], [-8.35, 6.25], [-8.25, 6.0], [-8.47, 5.47], [-8.82, 5.32], [-8.97, 4.97], [-9.5, 4.75], [-10.03, 4.97], [-10.18, 5.32], [-10.53, 5.47], [-10.68, 5.82], [-10.75, 5.85], [-11.0, 5.75], [-11.53, 5.97], [-11.68, 6.32], [-12.03, 6.47], [-12.18, 6.82], [-12.25, 6.85], [-12.5, 6.75], [-13.03, 6.97], [-13.18, 7.32], [-13.25, 7.35], [-13.5, 7.25], [-13.75, 7.35], [-14.0, 7.25], [-14.25, 7.35], [-14.32, 7.32], [-14.47, 6.97], [-15.0, 6.75], [-15.25, 6.85], [-15.5, 6.75], [-15.75, 6.85], [-16.0, 6.75], [-16.25, 6.85], [-16.5, 6.75], [-17.03, 6.97], [-17.18, 7.32], [-17.25, 7.35], [-17.5, 7.25], [-17.75, 7.35], [-18.0, 7.25], [-18.53, 7.47], [-18.75, 8.0], [-18.53, 8.53], [-18.18, 8.68], [-18.03, 9.03], [-17.5, 9.25], [-17.25, 9.15], [-17.12, 9.2], [-17.18, 9.32], [-17.53, 9.47], [-17.68, 9.82], [-17.75, 9.85], [-18.0, 9.75], [-18.25, 9.85], [-18.5, 9.75], [-19.03, 9.97], [-19.25, 10.5], [-19.03, 11.03], [-18.68, 11.18], [-18.53, 11.53], [-18.0, 11.75]]]]}, "2025-06-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-18.68, 9.82], [-19.03, 9.97], [-19.25, 10.5], [-19.03, 11.03], [-18.68, 11.18], [-18.53, 11.53], [-18.0, 11.75], [-17.47, 11.53], [-17.32, 11.18], [-17.25, 11.15], [-17.0, 11.25], [-16.75, 11.15], [-16.68, 11.18], [-16.53, 11.53], [-16.18, 11.68], [-16.03, 12.03], [-15.5, 12.25], [-14.97, 12.03], [-14.82, 11.68], [-14.47, 11.53], [-14.25, 11.0], [-14.37, 10.7], [-14.25, 10.65], [-14.0, 10.75], [-13.47, 10.53], [-13.32, 10.18], [-12.97, 10.03], [-12.8, 9.62], [-12.5, 9.75], [-12.25, 9.65], [-12.18, 9.68], [-12.03, 10.03], [-11.68, 10.18], [-11.53, 10.53], [-11.0, 10.75], [-10.75, 10.65], [-10.5, 10.75], [-9.97, 10.53], [-9.75, 10.0], [-9.85, 9.75], [-9.75, 9.5], [-9.85, 9.25], [-9.82, 9.18], [-9.75, 9.15], [-9.5, 9.25], [-9.25, 9.15], [-9.0, 9.25], [-8.75, 9.15], [-8.5, 9.25], [-7.97, 9.03], [-7.75, 8.5], [-7.85, 8.25], [-7.82, 8.18], [-7.75, 8.15], [-7.5, 8.25], [-6.97, 8.03], [-6.75, 7.5], [-6.97, 6.97], [-7.5, 6.75], [-7.75, 6.85], [-8.0, 6.75], [-8.3, 6.88], [-8.35, 6.75], [-8.25, 6.5], [-8.35, 6.25], [-8.25, 6.0], [-8.47, 5.47], [-8.82, 5.32], [-8.97, 4.97], [-9.5, 4.75], [-10.03, 4.97], [-10.18, 5.32], [-10.53, 5.47], [-10.68, 5.82], [-10.75, 5.85], [-11.0, 5.75], [-11.53, 5.97], [-11.68, 6.32], [-12.03, 6.47], [-12.18, 6.82], [-12.25, 6.85], [-12.5, 6.75], [-13.03, 6.97], [-13.18, 7.32], [-13.25, 7.35], [-13.5, 7.25], [-13.75, 7.35], [-14.0, 7.25], [-14.25, 7.35], [-14.32, 7.32], [-14.47, 6.97], [-15.0, 6.75], [-15.25, 6.85], [-15.5, 6.75], [-15.75, 6.85], [-16.0, 6.75], [-16.25, 6.85], [-16.5, 6.75], [-17.03, 6.97], [-17.18, 7.32], [-17.25, 7.35], [-17.5, 7.25], [-17.75, 7.35], [-18.0, 7.25], [-18.53, 7.47], [-18.75, 8.0], [-18.62, 8.3], [-19.03, 8.47], [-19.25, 9.0], [-19.03, 9.53], [-18.68, 9.68], [-18.65, 9.75], [-18.68, 9.82]]]]}, "2025-06-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-18.68, 9.82], [-19.03, 9.97], [-19.25, 10.5], [-19.03, 11.03], [-18.68, 11.18], [-18.53, 11.53], [-18.0, 11.75], [-17.47, 11.53], [-17.32, 11.18], [-17.25, 11.15], [-17.0, 11.25], [-16.75, 11.15], [-16.5, 11.25], [-16.2, 11.12], [-16.03, 11.53], [-15.5, 11.75], [-14.97, 11.53], [-14.75, 11.0], [-14.85, 10.75], [-14.82, 10.68], [-14.47, 10.53], [-14.25, 10.0], [-14.35, 9.75], [-14.32, 9.68], [-13.97, 9.53], [-13.82, 9.18], [-13.75, 9.15], [-13.5, 9.25], [-13.2, 9.12], [-13.03, 9.53], [-12.5, 9.75], [-12.25, 9.65], [-12.0, 9.75], [-11.75, 9.65], [-11.68, 9.68], [-11.65, 9.75], [-11.75, 10.0], [-11.53, 10.53], [-11.0, 10.75], [-10.47, 10.53], [-10.32, 10.18], [-9.97, 10.03], [-9.75, 9.5], [-9.85, 9.25], [-9.82, 9.18], [-9.75, 9.15], [-9.5, 9.25], [-9.25, 9.15], [-9.0, 9.25], [-8.75, 9.15], [-8.5, 9.25], [-7.97, 9.03], [-7.75, 8.5], [-7.85, 8.25], [-7.82, 8.18], [-7.75, 8.15], [-7.5, 8.25], [-6.97, 8.03], [-6.75, 7.5], [-6.97, 6.97], [-7.5, 6.75], [-7.75, 6.85], [-8.0, 6.75], [-8.3, 6.88], [-8.35, 6.75], [-8.25, 6.5], [-8.35, 6.25], [-8.25, 6.0], [-8.47, 5.47], [-8.82, 5.32], [-8.97, 4.97], [-9.5, 4.75], [-10.03, 4.97], [-10.18, 5.32], [-10.53, 5.47], [-10.68, 5.82], [-10.75, 5.85], [-11.0, 5.75], [-11.53, 5.97], [-11.68, 6.32], [-12.03, 6.47], [-12.18, 6.82], [-12.25, 6.85], [-12.5, 6.75], [-13.03, 6.97], [-13.18, 7.32], [-13.25, 7.35], [-13.5, 7.25], [-13.75, 7.35], [-14.0, 7.25], [-14.25, 7.35], [-14.32, 7.32], [-14.47, 6.97], [-15.0, 6.75], [-15.25, 6.85], [-15.5, 6.75], [-15.75, 6.85], [-16.0, 6.75], [-16.53, 6.97], [-16.68, 7.32], [-16.75, 7.35], [-17.0, 7.25], [-17.25, 7.35], [-17.5, 7.25], [-17.75, 7.35], [-18.0, 7.25], [-18.53, 7.47], [-18.75, 8.0], [-18.62, 8.3], [-19.03, 8.47], [-19.25, 9.0], [-19.03, 9.53], [-18.68, 9.68], [-18.65, 9.75], [-18.68, 9.82]]]]}, "2025-06-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-8.97, 7.53], [-8.75, 7.0], [-8.97, 6.47], [-9.5, 6.25], [-9.8, 6.38], [-9.97, 5.97], [-10.5, 5.75], [-11.03, 5.97], [-11.25, 6.5], [-11.03, 7.03], [-10.5, 7.25], [-10.2, 7.12], [-10.03, 7.53], [-9.5, 7.75], [-8.97, 7.53]]], [[[-8.53, 8.03], [-8.0, 8.25], [-7.75, 8.15], [-7.5, 8.25], [-6.97, 8.03], [-6.75, 7.5], [-6.97, 6.97], [-7.5, 6.75], [-7.75, 6.85], [-8.0, 6.75], [-8.53, 6.97], [-8.75, 7.5], [-8.53, 8.03]]], [[[-18.75, 10.5], [-18.53, 11.03], [-18.0, 11.25], [-17.75, 11.15], [-17.5, 11.25], [-17.25, 11.15], [-17.0, 11.25], [-16.75, 11.15], [-16.5, 11.25], [-16.2, 11.12], [-16.03, 11.53], [-15.5, 11.75], [-14.97, 11.53], [-14.75, 11.0], [-14.85, 10.75], [-14.82, 10.68], [-14.47, 10.53], [-14.25, 10.0], [-14.35, 9.75], [-14.32, 9.68], [-13.97, 9.53], [-13.75, 9.0], [-13.97, 8.47], [-14.37, 8.3], [-14.25, 8.0], [-14.47, 7.47], [-15.0, 7.25], [-15.25, 7.35], [-15.5, 7.25], [-15.75, 7.35], [-16.0, 7.25], [-16.25, 7.35], [-16.5, 7.25], [-17.03, 7.47], [-17.18, 7.82], [-17.25, 7.85], [-17.5, 7.75], [-18.03, 7.97], [-18.18, 8.32], [-18.25, 8.35], [-18.5, 8.25], [-19.03, 8.47], [-19.25, 9.0], [-19.03, 9.53], [-18.68, 9.68], [-18.65, 9.75], [-18.75, 10.0], [-18.65, 10.25], [-18.75, 10.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.4189504991591093}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.251351037151841}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.77231877644857, 27.665212504069018, 27.97989559508204, 27.30929687742207, 27.092852541000184, 27.2415257642499, 27.04435640600508, 27.549761284722194]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.848653411865257, 27.732774353027366, 28.905466969807946, 28.859527842203818, 29.009388224283896, 29.292170461018884, 28.409883117675804, 28.16949869791671]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.9447442758973352, 0.8766668408563305, 1.188039378588775, 1.1178029983705147, 1.2720099686421058, 1.3728425071453987, 1.3077606725037274, 1.0155014065375734]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.9920584954367655, 1.093088633310856, 2.057102376040291, 1.7941160771314344, 2.2027065526096976, 2.179087696960778, 2.4189504991591093, 1.3527796128850582]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5095989020687053, 1.4287685768816043, 1.8569196794818705, 1.741278091270375, 1.9690807104508496, 2.1890352410742095, 2.0323855246448015, 1.8027138668552258]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.606478929001357, 1.6426335255409032, 2.717688482182107, 2.5319229376765113, 2.8802928936743832, 3.045219266872441, 3.128806602670617, 2.5039395423867137]}}