{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:52:47.956238", "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": "2023-Apr-14_to_2023-Apr-20_35.5_12.0"}, "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": 2023040001996}, "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": "April 14 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 20 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 72365.53860742517}, "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": ["Ethiopia", "Sudan"]}, "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": 12.0}, "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": 35.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "35.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 32.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 37.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 11.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 13.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[37.25, 12.0], [37.03, 11.47], [36.5, 11.25], [36.25, 11.35], [36.18, 11.32], [36.03, 10.97], [35.5, 10.75], [34.97, 10.97], [34.75, 11.5], [34.85, 11.75], [34.82, 11.82], [34.75, 11.85], [34.5, 11.75], [34.25, 11.85], [34.0, 11.75], [33.75, 11.85], [33.5, 11.75], [33.25, 11.85], [33.0, 11.75], [32.75, 11.85], [32.5, 11.75], [31.97, 11.97], [31.75, 12.5], [31.97, 13.03], [32.32, 13.18], [32.47, 13.53], [33.0, 13.75], [33.5, 13.54], [34.0, 13.75], [34.5, 13.54], [34.82, 13.68], [34.97, 14.03], [35.5, 14.25], [35.75, 14.15], [36.0, 14.25], [36.25, 14.15], [36.5, 14.25], [36.75, 14.15], [37.0, 14.25], [37.53, 14.03], [37.75, 13.5], [37.65, 13.25], [37.75, 13.0], [37.53, 12.47], [37.18, 12.32], [37.15, 12.25], [37.25, 12.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-04-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.75, 12.0], [34.85, 12.25], [34.75, 12.5], [34.97, 13.03], [35.5, 13.25], [35.75, 13.15], [35.82, 13.18], [35.97, 13.53], [36.5, 13.75], [37.03, 13.53], [37.25, 13.0], [37.03, 12.47], [36.68, 12.32], [36.65, 12.25], [36.75, 12.0], [36.53, 11.47], [36.18, 11.32], [36.03, 10.97], [35.5, 10.75], [34.97, 10.97], [34.75, 11.5], [34.85, 11.75], [34.75, 12.0]]]]}, "2023-04-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.47, 13.53], [33.0, 13.75], [33.5, 13.54], [34.0, 13.75], [34.5, 13.54], [35.0, 13.75], [35.25, 13.65], [35.32, 13.68], [35.47, 14.03], [36.0, 14.25], [36.53, 14.03], [36.68, 13.68], [37.03, 13.53], [37.25, 13.0], [37.04, 12.5], [37.25, 12.0], [37.03, 11.47], [36.5, 11.25], [36.25, 11.35], [36.18, 11.32], [36.03, 10.97], [35.5, 10.75], [34.97, 10.97], [34.75, 11.5], [34.85, 11.75], [34.82, 11.82], [34.75, 11.85], [34.5, 11.75], [34.25, 11.85], [34.0, 11.75], [33.75, 11.85], [33.5, 11.75], [33.25, 11.85], [33.0, 11.75], [32.75, 11.85], [32.5, 11.75], [31.97, 11.97], [31.75, 12.5], [31.97, 13.03], [32.32, 13.18], [32.47, 13.53]]]]}, "2023-04-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.47, 13.53], [33.0, 13.75], [33.5, 13.54], [34.0, 13.75], [34.5, 13.54], [34.82, 13.68], [34.97, 14.03], [35.5, 14.25], [35.75, 14.15], [36.0, 14.25], [36.25, 14.15], [36.5, 14.25], [36.75, 14.15], [37.0, 14.25], [37.53, 14.03], [37.75, 13.5], [37.53, 12.97], [37.18, 12.82], [37.04, 12.5], [37.25, 12.0], [37.03, 11.47], [36.5, 11.25], [36.25, 11.35], [36.18, 11.32], [36.03, 10.97], [35.5, 10.75], [34.97, 10.97], [34.75, 11.5], [34.85, 11.75], [34.82, 11.82], [34.75, 11.85], [34.5, 11.75], [34.25, 11.85], [34.0, 11.75], [33.75, 11.85], [33.5, 11.75], [33.25, 11.85], [33.0, 11.75], [32.75, 11.85], [32.5, 11.75], [31.97, 11.97], [31.75, 12.5], [31.97, 13.03], [32.32, 13.18], [32.47, 13.53]]]]}, "2023-04-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[32.47, 13.53], [33.0, 13.75], [33.5, 13.54], [34.0, 13.75], [34.5, 13.54], [34.82, 13.68], [34.97, 14.03], [35.5, 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11.47], [36.5, 11.25], [36.25, 11.35], [36.0, 11.25], [35.75, 11.35], [35.5, 11.25], [34.97, 11.47], [34.82, 11.82], [34.47, 11.97]]]]}, "2023-04-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.47, 13.53], [37.0, 13.75], [37.53, 13.53], [37.75, 13.0], [37.53, 12.47], [37.18, 12.32], [37.03, 11.97], [36.5, 11.75], [35.97, 11.97], [35.75, 12.5], [35.97, 13.03], [36.32, 13.18], [36.47, 13.53]]]]}, "2023-04-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.97, 13.03], [36.5, 13.25], [37.03, 13.03], [37.25, 12.5], [37.03, 11.97], [36.5, 11.75], [35.97, 11.97], [35.75, 12.5], [35.97, 13.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.164431388139917}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.3655429168778146}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [34.40260856393189, 35.20477536356344, 35.44084325687243, 35.2738766790938, 34.69861346785058, 32.87507401973767, 33.69331314492405]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [35.902566156443584, 36.610055063910806, 37.48455411993581, 37.35419034834632, 36.709671271726165, 33.74197835377532, 33.69331314492405]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.3018231021119013, 2.3439055108714286, 2.546400304879998, 2.3682895679596823, 2.2122042241616366, 2.0553902960885466, 2.0400692920667325]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.695480908746447, 2.836500195142378, 3.164431388139917, 3.0715077615072346, 2.6560428676112338, 2.0608683041823497, 2.0400692920667325]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.288886142115351, 1.365603563714187, 1.570020759282381, 1.5572424391728157, 1.50523144540181, 1.4785213019641443, 1.323828114781578]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.463838703756454, 1.5943482382095124, 1.9929737665197775, 2.0162554244068263, 1.880372647563237, 1.5832619409696087, 1.323828114781578]}}