{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:56:42.121858", "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-Aug-12_to_2025-Aug-15_24.5_-28.5"}, "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": 2025080001739}, "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": "August 12 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 15 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 82801.4495393459}, "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": ["Botswana", "Namibia", "South Africa"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.Southern-Africa"]}, "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": -28.5}, "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": 24.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "24.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 19.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 25.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -29.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -24.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.75, -24.5], [18.97, -23.97], [19.5, -23.75], [19.75, -23.85], [20.0, -23.75], [20.25, -23.85], [20.5, -23.75], [20.75, -23.85], [21.0, -23.75], [21.53, -23.97], [21.68, -24.32], [22.03, -24.47], [22.18, -24.82], [22.53, -24.97], [22.75, -25.5], [22.65, -25.75], [22.68, -25.82], [23.03, -25.97], [23.18, -26.32], [23.53, -26.47], [23.75, -27.0], [23.54, -27.5], [23.68, -27.82], [24.03, -27.97], [24.25, -28.5], [24.03, -29.03], [23.5, -29.25], [23.25, -29.15], [23.0, -29.25], [22.47, -29.03], [22.32, -28.68], [21.97, -28.53], [21.75, -28.0], [21.96, -27.5], [21.82, -27.18], [21.47, -27.03], [21.32, -26.68], [20.97, -26.53], [20.82, -26.18], [20.47, -26.03], [20.32, -25.68], [20.25, -25.65], [20.0, -25.75], [19.47, -25.53], [19.32, -25.18], [18.97, -25.03], [18.75, -24.5]]]]}, "2025-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.75, -24.5], [18.97, -23.97], [19.5, -23.75], [19.75, -23.85], [20.0, -23.75], [20.25, -23.85], [20.5, -23.75], [20.75, -23.85], [21.0, -23.75], [21.53, -23.97], [21.68, -24.32], [22.03, 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20.926431274414085, 21.80460891723635, 18.52173004150393]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.4977857226493585, 4.752172246686145, 5.462560480861433, 4.9730986934423465]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.830383489654196, 5.668500040464323, 6.28541436834854, 5.956969416365325]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3059657824348394, 1.3788874294031972, 1.5558956440625897, 1.5123296941583115]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.405457709958008, 1.5287779152621985, 1.725395418677014, 1.8628499385561146]}}