{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:58:04.197288", "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-Dec-12_to_2025-Dec-14_15.5_-1.5"}, "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": 2025120001657}, "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": "December 12 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 14 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 108019.71626306482}, "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": ["Congo", "Congo DRC"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-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": []}, "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": -1.5}, "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": 15.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "15.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 13.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 17.25}, "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": -0.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-12-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.35, -3.75], [13.25, -3.5], [13.47, -2.97], [14.0, -2.75], [14.25, -2.85], [14.38, -2.8], [14.25, -2.5], [14.47, -1.97], [14.82, -1.82], [14.85, -1.75], [14.75, -1.5], [14.96, -1.0], [14.75, -0.5], [14.97, 0.03], [15.5, 0.25], [15.75, 0.15], [16.0, 0.25], [16.53, 0.03], [16.75, -0.5], [16.65, -0.75], [16.68, -0.82], [16.75, -0.85], [17.0, -0.75], [17.53, -0.97], [17.75, -1.5], [17.65, -1.75], [17.75, -2.0], [17.65, -2.25], [17.75, -2.5], [17.65, -2.75], [17.75, -3.0], [17.53, -3.53], [17.18, -3.68], [17.15, -3.75], [17.25, -4.0], [17.03, -4.53], [16.5, -4.75], [16.2, -4.62], [16.03, -5.03], [15.68, -5.18], [15.53, -5.53], [15.0, -5.75], [14.75, -5.65], [14.5, -5.75], [13.97, -5.53], [13.82, -5.18], [13.47, -5.03], [13.25, -4.5], [13.35, -4.25], [13.25, -4.0], [13.35, -3.75]]]]}, "2025-12-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.35, -3.75], [13.25, -3.5], [13.47, -2.97], [14.0, -2.75], [14.25, -2.85], [14.38, -2.8], [14.25, -2.5], [14.47, -1.97], [14.82, -1.82], [14.85, -1.75], [14.75, -1.5], [14.96, -1.0], [14.75, -0.5], [14.97, 0.03], [15.5, 0.25], [15.75, 0.15], [16.0, 0.25], [16.53, 0.03], [16.75, -0.5], [16.65, -0.75], [16.68, -0.82], [16.75, -0.85], [17.0, -0.75], [17.53, -0.97], [17.75, -1.5], [17.65, -1.75], [17.75, -2.0], [17.65, -2.25], [17.75, -2.5], [17.65, -2.75], [17.75, -3.0], [17.53, -3.53], [17.18, -3.68], [17.15, -3.75], [17.25, -4.0], [17.03, -4.53], [16.5, -4.75], [16.2, -4.62], [16.03, -5.03], [15.68, -5.18], [15.53, -5.53], [15.0, -5.75], [14.75, -5.65], [14.5, -5.75], [13.97, -5.53], [13.82, -5.18], [13.47, -5.03], [13.25, -4.5], [13.35, -4.25], [13.25, -4.0], [13.35, -3.75]]]]}, "2025-12-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.35, -3.75], [13.25, -3.5], [13.47, -2.97], [14.0, -2.75], [14.25, -2.85], [14.38, -2.8], [14.25, -2.5], [14.47, -1.97], [14.82, -1.82], [14.85, -1.75], [14.75, -1.5], [14.96, -1.0], [14.75, -0.5], [14.97, 0.03], [15.5, 0.25], [15.75, 0.15], [16.0, 0.25], [16.53, 0.03], [16.75, -0.5], [16.65, -0.75], [16.68, -0.82], [16.75, -0.85], [17.0, -0.75], [17.53, -0.97], [17.75, -1.5], [17.65, -1.75], [17.75, -2.0], [17.65, -2.25], [17.75, -2.5], [17.65, -2.75], [17.75, -3.0], [17.53, -3.53], [17.18, -3.68], [17.15, -3.75], [17.25, -4.0], [17.03, -4.53], [16.5, -4.75], [16.2, -4.62], [16.03, -5.03], [15.68, -5.18], [15.53, -5.53], [15.0, -5.75], [14.75, -5.65], [14.5, -5.75], [13.97, -5.53], [13.82, -5.18], [13.47, -5.03], [13.25, -4.5], [13.35, -4.25], [13.25, -4.0], [13.35, -3.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.4859587223025983}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.5892876890223382}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.076386878604012, 26.298412177676255, 26.47914613996238]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.921627298990927, 28.199219004313193, 28.48093185424807]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.398285779751427, 1.5999748925659625, 1.7696023947496249]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.127219489944707, 2.4859587223025983, 2.3808703042561774]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.61428824661644, 1.8592835706991682, 2.0352860708892444]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.2786625676950365, 2.7320202218450858, 2.835114441937262]}}