{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:25:41.832461", "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": "2022-Dec-25_to_2022-Dec-30_18.0_-0.5"}, "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": 2022120002721}, "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 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 30 2022"}, "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": 64878.8606791194}, "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, The Democratic Republic of the"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": -0.5}, "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": 18.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "18.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 16.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 18.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -3.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -0.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[15.35, -1.75], [15.25, -1.5], [15.35, -1.25], [15.25, -1.0], [15.35, -0.75], [15.25, -0.5], [15.47, 0.03], [16.0, 0.25], [16.25, 0.15], [16.5, 0.25], [17.03, 0.03], [17.18, -0.32], [17.25, -0.35], [17.32, -0.32], [17.47, 0.03], [18.0, 0.25], [18.53, 0.03], [18.75, -0.5], [18.53, -1.03], [18.18, -1.18], [18.15, -1.25], [18.18, -1.32], [18.53, -1.47], [18.75, -2.0], [18.65, -2.25], [18.75, -2.5], [18.53, -3.03], [18.0, -3.25], [17.75, -3.15], [17.5, -3.25], [17.25, -3.15], [17.0, -3.25], [16.75, -3.15], [16.68, -3.18], [16.53, -3.53], [16.0, -3.75], [15.47, -3.53], [15.25, -3.0], [15.35, -2.75], [15.25, -2.5], [15.35, -2.25], [15.25, -2.0], [15.35, -1.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-12-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.47, 0.03], [18.0, 0.25], [18.53, 0.03], [18.75, -0.5], [18.53, -1.03], [18.0, -1.25], [17.47, -1.03], [17.25, -0.5], [17.47, 0.03]]]]}, "2022-12-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.47, 0.03], [18.0, 0.25], [18.53, 0.03], [18.75, -0.5], [18.53, -1.03], [18.0, -1.25], [17.47, -1.03], [17.25, -0.5], [17.47, 0.03]]]]}, "2022-12-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.25, -0.5], [15.47, 0.03], [16.0, 0.25], [16.25, 0.15], [16.5, 0.25], [17.03, 0.03], [17.18, -0.32], [17.25, -0.35], [17.32, -0.32], [17.47, 0.03], [18.0, 0.25], [18.53, 0.03], [18.75, -0.5], [18.53, -1.03], [18.18, -1.18], [18.15, -1.25], [18.18, -1.32], [18.53, -1.47], [18.75, -2.0], [18.65, -2.25], [18.75, -2.5], [18.53, -3.03], [18.0, -3.25], [17.47, -3.03], [17.25, -2.5], [17.35, -2.25], [17.32, -2.18], [17.25, -2.15], [17.0, -2.25], [16.47, -2.03], [16.32, -1.68], [16.25, -1.65], [16.0, -1.75], [15.47, -1.53], [15.25, -1.0], [15.35, -0.75], [15.25, -0.5]]]]}, "2022-12-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.25, -2.5], [15.35, -2.25], [15.25, -2.0], [15.35, -1.75], [15.25, -1.5], [15.35, -1.25], [15.25, -1.0], [15.35, -0.75], [15.25, -0.5], [15.47, 0.03], [16.0, 0.25], [16.25, 0.15], [16.5, 0.25], [17.03, 0.03], [17.18, -0.32], [17.25, -0.35], [17.32, -0.32], [17.47, 0.03], [18.0, 0.25], [18.53, 0.03], [18.75, -0.5], [18.53, -1.03], [18.18, -1.18], [18.15, -1.25], [18.18, -1.32], [18.53, -1.47], [18.75, -2.0], [18.65, -2.25], [18.75, -2.5], [18.53, -3.03], [18.0, -3.25], [17.75, -3.15], [17.5, -3.25], [17.25, -3.15], [17.0, -3.25], [16.75, -3.15], [16.68, -3.18], [16.53, -3.53], [16.0, -3.75], [15.47, -3.53], [15.25, -3.0], [15.35, -2.75], [15.25, -2.5]]]]}, "2022-12-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.25, -2.5], [15.35, -2.25], [15.25, -2.0], [15.35, -1.75], [15.25, -1.5], [15.35, -1.25], [15.25, -1.0], [15.35, -0.75], [15.25, -0.5], [15.47, 0.03], [16.0, 0.25], [16.25, 0.15], [16.5, 0.25], [17.03, 0.03], [17.18, -0.32], [17.25, -0.35], [17.32, -0.32], [17.47, 0.03], [18.0, 0.25], [18.53, 0.03], [18.75, -0.5], [18.53, -1.03], [18.18, -1.18], [18.15, -1.25], [18.18, -1.32], [18.53, -1.47], [18.75, -2.0], [18.65, -2.25], [18.75, -2.5], [18.53, -3.03], [18.0, -3.25], [17.75, -3.15], [17.5, -3.25], [17.25, -3.15], [17.0, -3.25], [16.75, -3.15], [16.68, -3.18], [16.53, -3.53], [16.0, -3.75], [15.47, -3.53], [15.25, -3.0], [15.35, -2.75], [15.25, -2.5]]]]}, "2022-12-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[15.25, -2.5], [15.35, -2.25], [15.25, -2.0], [15.35, -1.75], [15.25, -1.5], [15.35, -1.25], [15.25, -1.0], [15.35, -0.75], [15.25, -0.5], [15.47, 0.03], [16.0, 0.25], [16.25, 0.15], [16.5, 0.25], [17.03, 0.03], [17.18, -0.32], [17.25, -0.35], [17.32, -0.32], [17.47, 0.03], [18.0, 0.25], [18.53, 0.03], [18.75, -0.5], [18.53, -1.03], [18.18, -1.18], [18.15, -1.25], [18.18, -1.32], [18.53, -1.47], [18.75, -2.0], [18.65, -2.25], [18.75, -2.5], [18.53, -3.03], [18.0, -3.25], [17.75, -3.15], [17.5, -3.25], [17.25, -3.15], [17.0, -3.25], [16.75, -3.15], 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[1.6783704591382502, 1.3178774854563926, 1.4503020981749264, 1.5633954348276309, 1.4088117574880812, 1.5871275583409075]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.6783704591382502, 1.3178774854563926, 1.5847118410840153, 1.8944226677006668, 1.7522493826705272, 1.9476836450200494]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.820936508034248, 1.4644533123382362, 1.608071997440444, 1.7575838241471953, 1.5695617333306107, 1.8279201607678093]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.820936508034248, 1.4644533123382362, 1.786524735356791, 2.126660410240001, 1.9560553813362869, 2.1921027115324945]}}