{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:53:42.948362", "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": "2026-Jun-24_to_2026-Jun-29_4.5_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": 2026060002578}, "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 24 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 29 2026"}, "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": 82218.206377614}, "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": ["Benin", "Nigeria"]}, "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": []}, "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": 4.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "4.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 2.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 7.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 7.75}, "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": {"2026-06-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.25, 10.5], [2.47, 11.03], [3.0, 11.25], [3.25, 11.15], [3.32, 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10.65], [5.0, 10.75], [5.5, 10.54], [6.0, 10.75], [6.53, 10.53], [6.68, 10.18], [7.03, 10.03], [7.25, 9.5], [7.04, 9.0], [7.25, 8.5], [7.15, 8.25], [7.25, 8.0], [7.03, 7.47], [6.5, 7.25], [5.97, 7.47], [5.82, 7.82], [5.75, 7.85], [5.5, 7.75], [4.97, 7.97], [4.82, 8.32], [4.47, 8.47], [4.32, 8.82], [3.97, 8.97], [3.75, 9.5], [3.85, 9.75], [3.75, 10.0], [3.97, 10.53]]]]}, "2026-06-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[3.97, 10.53], [4.5, 10.75], [5.03, 10.53], [5.25, 10.0], [5.47, 10.53], [6.0, 10.75], [6.53, 10.53], [6.68, 10.18], [7.03, 10.03], [7.25, 9.5], [7.03, 8.97], [6.68, 8.82], [6.53, 8.47], [6.0, 8.25], [5.75, 8.35], [5.5, 8.25], [4.97, 8.47], [4.8, 8.88], [4.5, 8.75], [3.97, 8.97], [3.75, 9.5], [3.85, 9.75], [3.75, 10.0], [3.97, 10.53]], [[5.15, 9.75], [5.2, 9.63], [5.32, 9.68], [5.35, 9.75], [5.25, 10.0], [5.15, 9.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.869056409616576}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.0862359931272523}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.091026984320763, 28.645972527397987, 28.52713457272381, 29.539271149811952, 28.48827455308708, 28.58270143781391]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [31.39320526123049, 30.91883494059249, 30.61139322916671, 31.783664957682333, 29.746401723225915, 29.658315277099632]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.102038460090417, 1.914519248907781, 1.804054954491619, 2.863036895953653, 1.6038872271315958, 1.5528955240584261]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.2098443825867093, 2.821265269223659, 2.639845827696888, 3.869056409616576, 2.092860615730956, 1.8712354068878199]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.933550056641406, 1.695172487102404, 1.6581585249427762, 2.688052767358682, 1.6165076997533299, 1.5205208432692043]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.8387174759411047, 2.349955859520637, 2.2088802725898855, 3.287764972064413, 1.9482856585449146, 1.5875453909098054]}}