{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:20:47.893937", "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": "2020-Jul-07_to_2020-Jul-10_23.5_-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": 2020070001713}, "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 07 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 10 2020"}, "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": 90472.95282600177}, "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", "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": 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": 25.75}, "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": -26.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-07-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[23.5, -26.75], [24.03, -26.97], [24.25, -27.5], [24.03, -28.03], [23.5, -28.25], [22.97, -28.03], [22.75, -27.5], [22.97, -26.97], [23.5, -26.75]]]]}, "2020-07-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.97, -26.47], [21.5, -26.25], [21.75, -26.35], [22.0, -26.25], [22.25, -26.35], [22.32, -26.32], [22.47, -25.97], [23.0, -25.75], [23.25, -25.85], [23.5, -25.75], [23.75, -25.85], [24.0, -25.75], [24.25, -25.85], [24.5, -25.75], [24.75, -25.85], [25.0, -25.75], [25.53, -25.97], [25.68, -26.32], [26.03, -26.47], [26.25, -27.0], [26.03, -27.53], [25.68, -27.68], [25.65, -27.75], [25.75, -28.0], [25.53, -28.53], [25.18, -28.68], [25.03, -29.03], [24.5, -29.25], [24.0, -29.04], [23.68, -29.18], [23.53, -29.53], [23.0, -29.75], [22.75, -29.65], [22.5, -29.75], [21.97, -29.53], [21.75, -29.0], [21.85, -28.75], [21.82, -28.68], [21.47, -28.53], [21.32, -28.18], [20.97, -28.03], [20.75, -27.5], [20.85, -27.25], [20.75, -27.0], [20.97, -26.47]]]]}, "2020-07-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": 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[23.75, -25.85], [24.0, -25.75], [24.25, -25.85], [24.5, -25.75], [24.75, -25.85], [25.0, -25.75], [25.53, -25.97], [25.68, -26.32], [26.03, -26.47], [26.25, -27.0], [26.03, -27.53], [25.68, -27.68], [25.65, -27.75], [25.75, -28.0], [25.53, -28.53], [25.18, -28.68], [25.03, -29.03], [24.5, -29.25], [24.0, -29.04], [23.68, -29.18], [23.53, -29.53], [23.0, -29.75], [22.75, -29.65], [22.5, -29.75], [21.97, -29.53], [21.75, -29.0], [21.85, -28.75], [21.82, -28.68], [21.47, -28.53], [21.32, -28.18], [20.97, -28.03], [20.75, -27.5], [20.85, -27.25], [20.75, -27.0], [20.97, -26.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.173558121713711}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.943198138672024}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.350916279343494, 14.345239097908177, 15.533068750753841, 15.518191287685454]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.350916279343494, 16.24361413467858, 18.535475419419356, 17.346893319619937]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.927959850323134, 4.128392832207123, 5.36267368235575, 5.369292698069831]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.927959850323134, 5.46431358432875, 7.173558121713711, 6.850137830508629]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5392178027654373, 1.4607618782041345, 1.8588405059137652, 1.900794723882229]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5392178027654373, 1.7425537979428418, 2.222087461749992, 2.39398816045177]}}