{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:36.341586", "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": "2019-Apr-18_to_2019-Apr-20_23.5_-27.0"}, "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": 2019040002103}, "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": "April 18 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 20 2019"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 55641.79128195971}, "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": ["E.Southern-Africa", "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": -27.0}, "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": 23.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "23.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 21.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 26.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -27.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -23.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-04-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.75, -24.0], [20.97, -23.47], [21.5, -23.25], [22.03, 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[24.32, -26.18]]]]}, "2019-04-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.75, -24.0], [20.97, -23.47], [21.5, -23.25], [22.03, -23.47], [22.18, -23.82], [22.53, -23.97], [22.68, -24.32], [22.75, -24.35], [23.0, -24.25], [23.53, -24.47], [23.68, -24.82], [23.75, -24.85], [24.0, -24.75], [24.25, -24.85], [24.5, -24.75], [24.75, -24.85], [25.0, -24.75], [25.25, -24.85], [25.5, -24.75], [26.03, -24.97], [26.25, -25.5], [26.15, -25.75], [26.18, -25.82], [26.25, -25.85], [26.5, -25.75], [27.03, -25.97], [27.25, -26.5], [27.03, -27.03], [26.5, -27.25], [26.25, -27.15], [26.0, -27.25], [25.75, -27.15], [25.5, -27.25], [24.97, -27.03], [24.82, -26.68], [24.57, -26.57], [24.75, -27.0], [24.53, -27.53], [24.0, -27.75], [23.75, -27.65], [23.5, -27.75], [23.25, -27.65], [23.0, -27.75], [22.47, -27.53], [22.25, -27.0], [22.47, -26.47], [22.82, -26.32], [22.85, -26.25], [22.82, -26.18], [22.47, -26.03], [22.32, -25.68], [21.97, -25.53], [21.82, -25.18], [21.47, -25.03], [21.32, -24.68], [20.97, -24.53], [20.75, -24.0]], [[24.32, -26.18], [24.25, -26.15], [24.18, -26.18], [24.15, -26.25], [24.18, -26.32], [24.43, -26.43], [24.32, -26.18]]]]}, "2019-04-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.75, -24.0], [20.97, -23.47], [21.5, -23.25], [22.03, -23.47], [22.18, -23.82], [22.53, -23.97], [22.68, -24.32], [22.75, -24.35], [23.0, -24.25], [23.53, -24.47], [23.68, -24.82], [23.75, -24.85], [24.0, -24.75], [24.25, -24.85], [24.5, -24.75], [24.75, -24.85], [25.0, -24.75], [25.25, -24.85], [25.5, -24.75], [26.03, -24.97], [26.25, -25.5], [26.15, -25.75], [26.18, -25.82], [26.25, -25.85], [26.5, -25.75], [27.03, -25.97], [27.25, -26.5], [27.03, -27.03], [26.5, -27.25], [26.25, -27.15], [26.0, -27.25], [25.75, -27.15], [25.5, -27.25], [24.97, -27.03], [24.82, -26.68], [24.57, -26.57], [24.75, -27.0], [24.53, -27.53], [24.0, -27.75], [23.75, -27.65], [23.5, -27.75], [23.25, -27.65], [23.0, -27.75], [22.47, -27.53], [22.25, -27.0], 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mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.3377568356039378, 4.395425187142965, 3.313187510063085]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.998611735011252, 5.668437889509903, 4.757328319664907]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5450045671572386, 1.9371640668784469, 1.381717080201806]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7749752600245352, 2.2417757591539744, 1.8196148965908316]}}