{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:24:46.251131", "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-Nov-02_to_2022-Nov-09_40.5_9.0"}, "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": 2022110001609}, "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": "November 02 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 09 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 54906.61651429185}, "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"]}, "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": 9.0}, "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": 40.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "40.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 40.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 42.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 8.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 11.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[39.25, 9.5], [39.47, 10.03], [39.82, 10.18], [39.85, 10.25], [39.75, 10.5], [39.85, 10.75], [39.75, 11.0], [39.97, 11.53], [40.5, 11.75], [41.03, 11.53], [41.25, 11.0], [41.15, 10.75], [41.18, 10.68], [41.53, 10.53], [41.68, 10.18], [41.75, 10.15], [42.0, 10.25], [42.53, 10.03], [42.75, 9.5], [42.65, 9.25], [42.75, 9.0], [42.53, 8.47], [42.0, 8.25], [41.75, 8.35], [41.5, 8.25], [41.25, 8.35], [41.18, 8.32], [41.15, 8.25], [41.25, 8.0], [41.03, 7.47], [40.5, 7.25], [40.25, 7.35], [40.0, 7.25], [39.47, 7.47], [39.25, 8.0], [39.35, 8.25], [39.25, 8.5], [39.35, 8.75], [39.25, 9.0], [39.35, 9.25], [39.25, 9.5]]]]}}, "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": {"2022-11-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[39.47, 9.53], [40.0, 9.75], [40.53, 9.53], [40.75, 9.0], [40.53, 8.47], [40.0, 8.25], [39.47, 8.47], [39.25, 9.0], [39.47, 9.53]]]]}, "2022-11-03T11:30:00.000000000": 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"mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.8130170330660655}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.646651466460867, 25.594505734632833, 25.195319119839894, 24.328630414270663, 23.41622214302413, 23.524090506808022, 26.507291673343502, 27.451876212165416]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.646651466460867, 30.175679887818717, 30.18017445442524, 29.76526174855502, 28.455031374679095, 29.517611128539386, 29.417253877026724, 29.108284526880027]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.7047242153917068, 1.9070892886085216, 1.8490629626809703, 1.7270697499512866, 1.770306076365063, 1.8333068347931014, 1.7288176812814982, 1.9456182748745334]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.7047242153917068, 2.4981565466636653, 2.5227159557769596, 2.3651278822148925, 2.6616724957316364, 2.18238549263242, 2.034670788223025, 2.359535800407855]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.1742410612445922, 1.5499278836415764, 1.56981649817154, 1.5242358020753728, 1.6224944572122681, 1.6601056049965344, 1.3720883049851755, 1.46719053444231]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.1742410612445922, 1.9931890176787157, 1.8986307627427716, 2.1156914512856186, 2.396601952176357, 2.1310909143244796, 1.4752202597223736, 1.6135540106407058]}}