{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:15.818971", "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": "2011-Dec-25_to_2011-Dec-27_26.0_-6.5"}, "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": 2011120002691}, "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 25 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 27 2011"}, "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": 181415.64763455646}, "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 DRC"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa", "S.Eastern-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": -6.5}, "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": 26.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "26.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 23.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 28.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -8.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -1.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-12-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.47, -1.97], [23.82, -1.82], [23.97, -1.47], [24.5, -1.25], [25.03, -1.47], [25.25, -2.0], [25.15, -2.25], [25.18, -2.32], [25.53, -2.47], [25.68, -2.82], [25.75, -2.85], [26.0, -2.75], [26.25, -2.85], [26.5, -2.75], [26.75, -2.85], [27.0, -2.75], [27.53, -2.97], [27.68, -3.32], [28.03, -3.47], [28.25, -4.0], [28.13, -4.3], [28.53, -4.47], [28.68, -4.82], [29.03, -4.97], [29.25, -5.5], [29.15, -5.75], [29.25, -6.0], [29.03, -6.53], [28.68, -6.68], [28.65, -6.75], [28.75, -7.0], [28.65, -7.25], [28.68, -7.32], [29.03, -7.47], [29.25, -8.0], [29.15, -8.25], [29.25, -8.5], [29.03, -9.03], [28.5, -9.25], [28.25, -9.15], [28.0, -9.25], [27.47, -9.03], [27.32, -8.68], [27.25, -8.65], [27.0, -8.75], [26.75, -8.65], [26.5, -8.75], [25.97, -8.53], [25.75, -8.0], [25.88, -7.7], [25.75, -7.65], [25.5, -7.75], [24.97, -7.53], [24.75, -7.0], [24.85, -6.75], [24.82, -6.68], [24.75, -6.65], [24.5, -6.75], [23.97, -6.53], [23.75, -6.0], [23.97, -5.47], [24.5, -5.25], [24.75, -5.35], [24.82, -5.32], [24.85, -5.25], [24.75, -5.0], [24.85, -4.75], [24.75, -4.5], [24.85, -4.25], [24.75, -4.0], [24.85, -3.75], [24.82, -3.68], [24.75, -3.65], [24.68, -3.68], [24.53, -4.03], [24.0, -4.25], [23.47, -4.03], [23.25, -3.5], [23.46, -3.0], [23.25, -2.5], [23.47, -1.97]]]]}, "2011-12-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.47, -1.97], [23.82, -1.82], [23.97, -1.47], [24.5, -1.25], [25.03, -1.47], [25.25, -2.0], [25.15, -2.25], [25.18, -2.32], [25.53, -2.47], [25.68, -2.82], [25.75, -2.85], [26.0, -2.75], [26.25, -2.85], [26.5, -2.75], [26.75, -2.85], [27.0, -2.75], [27.53, -2.97], [27.68, -3.32], [28.03, -3.47], [28.25, -4.0], [28.13, -4.3], [28.53, -4.47], [28.68, -4.82], [29.03, -4.97], [29.25, -5.5], [29.15, -5.75], [29.25, -6.0], [29.03, -6.53], [28.68, -6.68], [28.65, -6.75], [28.75, -7.0], [28.65, -7.25], [28.68, -7.32], [29.03, -7.47], [29.25, -8.0], [29.15, -8.25], [29.25, -8.5], [29.03, -9.03], [28.5, -9.25], [28.25, -9.15], [28.0, -9.25], [27.47, -9.03], [27.32, -8.68], [27.25, -8.65], [27.0, -8.75], [26.75, -8.65], [26.5, -8.75], [25.97, -8.53], [25.75, -8.0], [25.88, -7.7], [25.75, -7.65], [25.5, -7.75], [24.97, -7.53], [24.75, -7.0], [24.85, -6.75], [24.82, -6.68], [24.75, -6.65], [24.5, -6.75], [23.97, -6.53], [23.75, -6.0], [23.97, -5.47], [24.5, -5.25], [24.75, -5.35], [24.82, -5.32], [24.85, -5.25], [24.75, -5.0], [24.85, -4.75], [24.75, -4.5], [24.85, -4.25], [24.75, -4.0], [24.85, -3.75], [24.82, -3.68], [24.75, -3.65], [24.68, -3.68], [24.53, -4.03], [24.0, -4.25], [23.47, -4.03], [23.25, -3.5], [23.46, -3.0], [23.25, -2.5], [23.47, -1.97]]]]}, "2011-12-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.47, -1.97], [23.82, -1.82], [23.97, -1.47], [24.5, -1.25], [25.03, -1.47], [25.25, -2.0], [25.15, -2.25], [25.18, -2.32], [25.53, -2.47], [25.68, -2.82], [25.75, -2.85], [26.0, -2.75], [26.25, -2.85], [26.5, -2.75], [26.75, -2.85], [27.0, -2.75], [27.53, -2.97], [27.68, -3.32], [28.03, -3.47], [28.25, -4.0], [28.13, -4.3], [28.53, -4.47], [28.68, -4.82], [29.03, -4.97], [29.25, -5.5], [29.15, -5.75], [29.25, -6.0], [29.03, -6.53], [28.68, -6.68], [28.65, -6.75], [28.75, -7.0], [28.65, -7.25], [28.68, -7.32], [29.03, -7.47], [29.25, -8.0], [29.15, -8.25], [29.25, -8.5], [29.03, -9.03], [28.5, -9.25], [28.25, -9.15], [28.0, -9.25], [27.47, -9.03], [27.32, -8.68], [27.25, -8.65], [27.0, -8.75], [26.75, -8.65], [26.5, -8.75], [25.97, -8.53], [25.75, -8.0], [25.88, -7.7], [25.75, -7.65], [25.5, -7.75], [24.97, -7.53], [24.75, -7.0], [24.85, -6.75], [24.82, -6.68], [24.75, -6.65], [24.5, -6.75], [23.97, -6.53], [23.75, -6.0], [23.97, -5.47], [24.5, -5.25], [24.75, -5.35], [24.82, -5.32], [24.85, -5.25], [24.75, -5.0], [24.85, -4.75], [24.75, -4.5], [24.85, -4.25], [24.75, -4.0], [24.85, -3.75], [24.82, -3.68], [24.75, -3.65], [24.68, -3.68], [24.53, -4.03], [24.0, -4.25], [23.47, -4.03], [23.25, -3.5], [23.46, -3.0], [23.25, -2.5], [23.47, -1.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.209286735842454}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.8581673092628987}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.976731203449674, 25.567723541397925, 25.324997066139588]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.06168010573265, 27.05663938833328, 27.035055101440946]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.5634756096082247, 2.1360335646422226, 1.874992753538249]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.944915049176359, 2.8759366199641363, 3.209286735842454]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6354863668852935, 2.2813725512745733, 2.0349616634491605]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0198368437401375, 3.0841444646116396, 3.207857429879811]}}