{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:56:22.838318", "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-Jul-20_to_2025-Jul-24_21.0_-27.5"}, "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": 2025070002446}, "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": "July 20 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 24 2025"}, "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": 52237.75726511591}, "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", "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": -27.5}, "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": 21.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "21.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 19.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 23.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -28.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -25.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.47, -26.53], [19.25, -26.0], [19.47, -25.47], [20.0, 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[23.03, -29.03], [22.5, -29.25], [22.25, -29.15], [22.0, -29.25], [21.47, -29.03], [21.32, -28.68], [20.97, -28.53], [20.82, -28.18], [20.47, -28.03], [20.25, -27.5], [20.35, -27.25], [20.25, -27.0], [20.35, -26.75], [20.32, -26.68], [20.25, -26.65], [20.0, -26.75], [19.47, -26.53]]]]}, "2025-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.47, -26.53], [19.25, -26.0], [19.47, -25.47], [20.0, -25.25], [20.25, -25.35], [20.5, -25.25], [20.75, -25.35], [21.0, -25.25], [21.5, -25.46], [22.0, -25.25], [22.53, -25.47], [22.68, -25.82], [23.03, -25.97], [23.25, -26.5], [23.15, -26.75], [23.25, -27.0], [23.13, -27.3], [23.53, -27.47], [23.75, -28.0], [23.53, -28.53], [23.18, -28.68], [23.03, -29.03], [22.5, -29.25], [22.25, -29.15], [22.0, -29.25], [21.47, -29.03], [21.32, -28.68], [20.97, -28.53], [20.82, -28.18], [20.47, -28.03], [20.25, -27.5], [20.35, -27.25], [20.25, -27.0], [20.35, -26.75], [20.32, -26.68], [20.25, -26.65], [20.0, -26.75], [19.47, -26.53]]]]}, 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{"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.710398697461585}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.98822621441686}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.298794180886773, 16.96798075625776, 16.230694205300892, 16.45967000325527, 17.028332010904933]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.361199951171898, 17.8182197570801, 17.350798543294275, 16.759149169921898, 17.675630187988304]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.551396969819258, 5.196806694000543, 4.459632651979018, 4.320821586698469, 4.7316316864519425]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.710398697461585, 5.994436147573936, 4.997008432015946, 4.554889598571265, 5.192714216465788]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6946041976823298, 1.566092434598363, 1.3415180270791414, 1.2680612203331265, 1.4153331204928754]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9312915697258772, 1.6922361135350201, 1.4966736721753235, 1.3582253119376293, 1.5090444279008481]}}