{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:23:06.487098", "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-Sep-06_to_2022-Sep-10_25.0_17.5"}, "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": 2022090001591}, "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": "September 06 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 10 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 76659.63111703673}, "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": ["Sudan"]}, "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": 17.5}, "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": 25.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "25.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 24.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 27.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 18.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[23.85, 17.75], [23.75, 18.0], [23.97, 18.53], [24.32, 18.68], [24.47, 19.03], [25.0, 19.25], [25.25, 19.15], [25.5, 19.25], [25.75, 19.15], [26.0, 19.25], [26.25, 19.15], [26.5, 19.25], [27.03, 19.03], [27.25, 18.5], [27.15, 18.25], [27.18, 18.18], [27.53, 18.03], [27.75, 17.5], [27.65, 17.25], [27.75, 17.0], [27.53, 16.47], [27.0, 16.25], [26.75, 16.35], [26.5, 16.25], [26.25, 16.35], [26.18, 16.32], [26.03, 15.97], [25.5, 15.75], [25.25, 15.85], [25.0, 15.75], [24.75, 15.85], [24.5, 15.75], [24.25, 15.85], [24.0, 15.75], [23.47, 15.97], [23.25, 16.5], [23.35, 16.75], [23.25, 17.0], [23.47, 17.53], [23.82, 17.68], [23.85, 17.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-09-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.5, 17.75], [24.97, 17.97], [24.75, 18.5], [24.97, 19.03], [25.5, 19.25], [25.75, 19.15], [26.0, 19.25], [26.53, 19.03], [26.75, 18.5], [26.53, 17.97], [26.0, 17.75], [25.75, 17.85], [25.5, 17.75]]]]}, "2022-09-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.25, 17.0], [23.47, 17.53], [23.82, 17.68], [23.85, 17.75], [23.75, 18.0], [23.97, 18.53], [24.32, 18.68], [24.47, 19.03], [25.0, 19.25], [25.25, 19.15], [25.5, 19.25], [25.75, 19.15], [26.0, 19.25], [26.25, 19.15], [26.5, 19.25], [27.03, 19.03], [27.25, 18.5], [27.15, 18.25], [27.18, 18.18], [27.53, 18.03], [27.75, 17.5], [27.65, 17.25], [27.75, 17.0], [27.53, 16.47], [27.0, 16.25], [26.75, 16.35], [26.5, 16.25], [26.25, 16.35], [26.18, 16.32], [26.03, 15.97], [25.5, 15.75], [25.25, 15.85], [25.0, 15.75], [24.75, 15.85], [24.5, 15.75], [24.25, 15.85], [24.0, 15.75], [23.47, 15.97], [23.25, 16.5], [23.35, 16.75], [23.25, 17.0]]]]}, "2022-09-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.25, 17.0], [23.47, 17.53], [23.82, 17.68], [23.85, 17.75], [23.75, 18.0], [23.97, 18.53], [24.32, 18.68], [24.47, 19.03], [25.0, 19.25], [25.25, 19.15], [25.5, 19.25], [25.75, 19.15], [26.0, 19.25], [26.25, 19.15], [26.5, 19.25], [27.03, 19.03], [27.25, 18.5], [27.15, 18.25], [27.18, 18.18], [27.53, 18.03], [27.75, 17.5], [27.65, 17.25], [27.75, 17.0], [27.53, 16.47], [27.0, 16.25], [26.75, 16.35], [26.5, 16.25], [26.25, 16.35], [26.18, 16.32], [26.03, 15.97], [25.5, 15.75], [25.25, 15.85], [25.0, 15.75], [24.75, 15.85], [24.5, 15.75], [24.25, 15.85], [24.0, 15.75], [23.47, 15.97], [23.25, 16.5], [23.35, 16.75], [23.25, 17.0]]]]}, "2022-09-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.25, 17.0], [23.47, 17.53], [23.82, 17.68], [23.85, 17.75], [23.75, 18.0], [23.97, 18.53], [24.32, 18.68], [24.47, 19.03], [25.0, 19.25], [25.25, 19.15], [25.5, 19.25], [25.75, 19.15], [26.0, 19.25], [26.25, 19.15], [26.5, 19.25], [27.03, 19.03], [27.25, 18.5], [27.15, 18.25], [27.18, 18.18], [27.53, 18.03], [27.75, 17.5], [27.65, 17.25], [27.75, 17.0], [27.53, 16.47], [27.0, 16.25], [26.75, 16.35], [26.5, 16.25], [26.25, 16.35], [26.18, 16.32], [26.03, 15.97], [25.5, 15.75], [25.25, 15.85], [25.0, 15.75], [24.75, 15.85], [24.5, 15.75], [24.25, 15.85], [24.0, 15.75], [23.47, 15.97], [23.25, 16.5], [23.35, 16.75], [23.25, 17.0]]]]}, "2022-09-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.47, 18.03], [25.0, 18.25], [25.53, 18.03], [25.75, 17.5], [25.53, 16.97], [25.0, 16.75], [24.47, 16.97], [24.25, 17.5], [24.47, 18.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.687191767262618}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.0953963574287497}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.82052795941968, 32.277715367352585, 32.34769775494851, 32.315711997559106, 31.759128414215354]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.99158973703362, 33.7116822510082, 33.97623602641113, 33.57140342812488, 31.759128414215354]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.0634924537021675, 2.038598860046969, 2.135943302822286, 2.1209223462985345, 1.9180428059618748]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.0826864436372716, 2.687191767262618, 2.436296317921631, 2.5992200680955193, 1.9180428059618748]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2632467775014296, 1.4460734914217448, 1.5223230460776447, 1.468668284890528, 1.231950977024731]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2741028926964693, 1.6887280814095669, 1.7535179271457488, 1.7212704326784483, 1.231950977024731]}}