{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:08:29.528624", "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": "2025-Oct-14_to_2025-Oct-19_32.0_13.0"}, "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": 2025100001724}, "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": "October 14 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 19 2025"}, "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": 51172.42841942527}, "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": ["South Sudan", "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": 13.0}, "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": 32.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "32.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 31.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 33.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 14.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[32.75, 11.35], [32.5, 11.25], [32.25, 11.35], [32.0, 11.25], [31.47, 11.47], [31.3, 11.88], [31.0, 11.75], [30.47, 11.97], [30.25, 12.5], [30.47, 13.03], [30.82, 13.18], [30.85, 13.25], [30.75, 13.5], [30.97, 14.03], [31.5, 14.25], [31.75, 14.15], [31.87, 14.2], [31.88, 14.2], [31.75, 14.5], [31.97, 15.03], [32.5, 15.25], [32.75, 15.15], [33.0, 15.25], [33.53, 15.03], [33.75, 14.5], [33.65, 14.25], [33.68, 14.18], [34.03, 14.03], [34.25, 13.5], [34.03, 12.97], [33.5, 12.75], [33.25, 12.85], [33.18, 12.82], [33.15, 12.76], [33.15, 12.75], [33.18, 12.68], [33.53, 12.53], [33.75, 12.0], [33.53, 11.47], [33.0, 11.25], [32.75, 11.35]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "N.Eastern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-10-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.75, 12.0], [33.53, 11.47], [33.0, 11.25], [32.47, 11.47], [32.25, 12.0], [32.47, 12.53], [33.0, 12.75], [33.53, 12.53], [33.75, 12.0]]], [[[32.25, 14.5], [32.47, 15.03], [33.0, 15.25], [33.53, 15.03], [33.75, 14.5], [33.65, 14.25], [33.68, 14.18], [34.03, 14.03], [34.25, 13.5], [34.03, 12.97], [33.5, 12.75], [33.25, 12.85], [33.0, 12.75], [32.75, 12.85], [32.5, 12.75], [31.97, 12.97], [31.75, 13.5], [31.97, 14.03], [32.32, 14.18], [32.35, 14.25], [32.25, 14.5]]]]}, "2025-10-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.97, 12.47], [30.75, 13.0], [30.97, 13.53], [31.32, 13.68], [31.47, 14.03], [32.0, 14.25], [32.25, 14.15], [32.32, 14.18], [32.35, 14.25], [32.25, 14.5], [32.47, 15.03], [33.0, 15.25], [33.53, 15.03], [33.75, 14.5], [33.65, 14.25], [33.68, 14.18], [34.03, 14.03], [34.25, 13.5], [34.03, 12.97], [33.5, 12.75], [33.25, 12.85], [33.13, 12.8], [33.18, 12.68], [33.53, 12.53], [33.75, 12.0], [33.53, 11.47], [33.0, 11.25], [32.75, 11.35], [32.5, 11.25], [32.25, 11.35], [32.0, 11.25], [31.47, 11.47], [31.25, 12.0], [31.35, 12.25], [31.32, 12.32], [30.97, 12.47]]]]}, "2025-10-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.97, 13.53], [31.32, 13.68], [31.47, 14.03], [32.0, 14.25], [32.25, 14.15], [32.32, 14.18], [32.35, 14.25], [32.25, 14.5], [32.47, 15.03], [33.0, 15.25], [33.53, 15.03], [33.75, 14.5], [33.65, 14.25], [33.68, 14.18], [34.03, 14.03], [34.25, 13.5], [34.03, 12.97], [33.5, 12.75], [33.25, 12.85], [33.18, 12.82], [33.15, 12.75], [33.18, 12.68], [33.53, 12.53], [33.75, 12.0], [33.53, 11.47], [33.0, 11.25], [32.75, 11.35], [32.5, 11.25], [32.25, 11.35], [32.0, 11.25], [31.47, 11.47], [31.3, 11.88], [31.0, 11.75], [30.47, 11.97], [30.25, 12.5], [30.47, 13.03], [30.82, 13.18], [30.97, 13.53]]]]}, "2025-10-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.85, 13.25], [30.75, 13.5], [30.97, 14.03], [31.5, 14.25], [31.75, 14.15], [31.88, 14.2], [31.75, 14.5], [31.97, 15.03], [32.5, 15.25], [33.03, 15.03], [33.25, 14.5], [33.03, 13.97], [32.63, 13.8], [32.68, 13.68], [33.03, 13.53], [33.25, 13.0], [33.15, 12.75], [33.25, 12.5], [33.15, 12.25], [33.25, 12.0], [33.03, 11.47], [32.5, 11.25], [32.25, 11.35], [32.0, 11.25], [31.47, 11.47], [31.3, 11.88], [31.0, 11.75], [30.47, 11.97], [30.25, 12.5], [30.47, 13.03], [30.82, 13.18], [30.85, 13.25]]]]}, "2025-10-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.85, 13.25], [30.75, 13.5], [30.97, 14.03], [31.5, 14.25], [31.75, 14.15], [31.88, 14.2], [31.75, 14.5], [31.97, 15.03], [32.5, 15.25], [33.03, 15.03], [33.25, 14.5], [33.03, 13.97], [32.63, 13.8], [32.68, 13.68], [33.03, 13.53], [33.25, 13.0], [33.03, 12.47], [32.5, 12.25], [32.25, 12.35], [32.0, 12.25], [31.75, 12.35], [31.68, 12.32], [31.53, 11.97], [31.0, 11.75], [30.47, 11.97], [30.25, 12.5], [30.47, 13.03], [30.82, 13.18], [30.85, 13.25]]]]}, "2025-10-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.97, 12.97], [30.75, 13.5], [30.97, 14.03], [31.5, 14.25], [31.75, 14.15], [31.88, 14.2], [31.75, 14.5], [31.97, 15.03], [32.5, 15.25], [33.03, 15.03], [33.25, 14.5], [33.03, 13.97], [32.63, 13.8], [32.68, 13.68], [33.03, 13.53], [33.25, 13.0], [33.03, 12.47], [32.5, 12.25], [32.25, 12.35], [32.0, 12.25], [31.47, 12.47], [31.32, 12.82], [30.97, 12.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.1752902739485194}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.2034639060553802}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.81304957071944, 32.57043492243838, 32.850657908121775, 32.4777947859331, 32.41971831548784, 32.903537495931005]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.78078231811526, 34.09160003662112, 34.55666376749679, 34.19243138631185, 34.2944160461426, 34.00677642822268]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.153640821869118, 2.282410831367499, 2.5512332058525735, 2.1797711878051844, 1.7182770985403732, 1.7460672125472456]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.44628444528189, 2.6180349468846202, 3.1752902739485194, 2.7400583625691866, 1.9606069843437126, 1.9824726482117967]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3974595739068505, 1.5440961505965545, 1.7783226409184374, 1.621870705632412, 1.4371567245396513, 1.5172250068623796]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5312622852801943, 1.801319898388465, 2.1098756962844853, 1.8804235854820799, 1.5577274888252597, 1.7523025533423044]}}