{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:32:25.970792", "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": "2022-Sep-09_to_2022-Sep-11_30.0_-25.0"}, "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": 2022090001684}, "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": "September 09 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 11 2022"}, "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": 60970.99427162797}, "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": ["Eswatini", "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": -25.0}, "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": 30.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "30.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 28.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 31.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -28.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -24.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-09-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.32, -24.82], [29.47, -24.47], [30.0, -24.25], [30.25, -24.35], [30.5, -24.25], [30.75, -24.35], [31.0, -24.25], [31.53, -24.47], [31.68, -24.82], [32.03, -24.97], [32.25, -25.5], [32.04, -26.0], [32.25, -26.5], [32.03, -27.03], [31.68, -27.18], [31.65, -27.25], [31.75, -27.5], [31.53, -28.03], [31.0, -28.25], [30.75, -28.15], [30.5, -28.25], [30.25, -28.15], [30.18, -28.18], [30.03, -28.53], [29.5, -28.75], [28.97, -28.53], [28.75, -28.0], [28.85, -27.75], [28.75, -27.5], [28.97, -26.97], [29.32, -26.82], [29.38, -26.7], [29.25, -26.65], [29.0, -26.75], [28.47, -26.53], [28.25, -26.0], [28.47, -25.47], [28.82, -25.32], [28.97, -24.97], [29.32, -24.82]]]]}, "2022-09-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.32, -24.82], [29.47, -24.47], [30.0, -24.25], [30.25, -24.35], [30.5, -24.25], [30.75, -24.35], [31.0, -24.25], [31.53, -24.47], [31.68, -24.82], [32.03, -24.97], [32.25, -25.5], [32.04, -26.0], [32.25, -26.5], [32.03, -27.03], [31.68, -27.18], [31.65, -27.25], [31.75, -27.5], [31.53, -28.03], [31.0, -28.25], [30.75, -28.15], [30.5, -28.25], [30.25, -28.15], [30.18, -28.18], [30.03, -28.53], [29.5, -28.75], [28.97, -28.53], [28.75, -28.0], [28.85, -27.75], [28.75, -27.5], [28.97, -26.97], [29.32, -26.82], [29.38, -26.7], [29.25, -26.65], [29.0, -26.75], [28.47, -26.53], [28.25, -26.0], [28.47, -25.47], [28.82, -25.32], [28.97, -24.97], [29.32, -24.82]]]]}, "2022-09-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.32, -24.82], [29.47, -24.47], [30.0, -24.25], [30.25, -24.35], [30.5, -24.25], [30.75, -24.35], [31.0, -24.25], [31.53, -24.47], [31.68, -24.82], [32.03, -24.97], [32.25, -25.5], [32.04, -26.0], [32.25, -26.5], [32.03, -27.03], [31.68, -27.18], [31.65, -27.25], [31.75, -27.5], [31.53, -28.03], [31.0, -28.25], [30.75, -28.15], [30.5, -28.25], [30.25, -28.15], [30.18, -28.18], [30.03, -28.53], [29.5, -28.75], [28.97, -28.53], [28.75, -28.0], [28.85, -27.75], [28.75, -27.5], [28.97, -26.97], [29.32, -26.82], [29.38, -26.7], [29.25, -26.65], [29.0, -26.75], [28.47, -26.53], [28.25, -26.0], [28.47, -25.47], [28.82, -25.32], [28.97, -24.97], [29.32, -24.82]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.244833964138252}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.170891461445539}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.32534286802263, 21.724467873282833, 22.162659188366547]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.564408856854698, 26.53778405560041, 25.929555329373386]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.221360699508233, 5.475883843754252, 5.815429841074131]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.038237775786001, 6.722310619853715, 7.244833964138252]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.372163373116329, 1.775094169585698, 1.8438646899181317]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6999952952829522, 2.17510285730311, 2.143020262690082]}}