{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:17:54.257217", "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": "2018-Aug-20_to_2018-Aug-23_27.5_-25.5"}, "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": 2018080002589}, "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 20 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 23 2018"}, "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": 77629.76881303795}, "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 Africa"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.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": -25.5}, "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": 27.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "27.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 26.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 30.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -27.75}, "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": {"2018-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.97, -25.47], [26.5, -25.25], [26.75, -25.35], [26.82, 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-24.47], [28.82, -24.32], [28.97, -23.97], [29.5, -23.75], [30.03, -23.97], [30.25, -24.5], [30.15, -24.75], [30.25, -25.0], [30.15, -25.25], [30.18, -25.32], [30.53, -25.47], [30.75, -26.0], [30.65, -26.25], [30.75, -26.5], [30.65, -26.75], [30.75, -27.0], [30.53, -27.53], [30.0, -27.75], [29.75, -27.65], [29.5, -27.75], [29.25, -27.65], [29.18, -27.68], [29.03, -28.03], [28.5, -28.25], [27.97, -28.03], [27.82, -27.68], [27.75, -27.65], [27.5, -27.75], [27.25, -27.65], [27.0, -27.75], [26.47, -27.53], [26.32, -27.18], [25.97, -27.03], [25.75, -26.5], [25.85, -26.25], [25.75, -26.0], [25.97, -25.47]], [[28.15, -25.25], [28.18, -25.32], [28.3, -25.37], [28.35, -25.25], [28.25, -25.0], [28.15, -25.25]]]]}, "2018-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.97, -25.47], [26.5, -25.25], [26.75, -25.35], [26.82, -25.32], [26.85, -25.25], [26.75, -25.0], [26.97, -24.47], [27.5, -24.25], [28.03, -24.47], [28.25, -25.0], [28.47, -24.47], [28.82, -24.32], [28.97, 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"description": "The daily evolution of maximum t2m anomalies.", "value": [5.227634599734074, 7.049138361825328, 4.968346348767739, 4.314164408140698]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.528652469881953, 2.0921455314895026, 1.4295590174893142, 1.4014089567276633]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6769128885296145, 2.399301304506064, 1.8190239433063198, 1.5232539856941587]}}