{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:18.825674", "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": "2013-Aug-25_to_2013-Aug-30_30.0_-31.0"}, "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": 2013080002897}, "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 25 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 30 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 568978.8086132756}, "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", "Lesotho", "Namibia", "South Africa"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa", "S.Indian-Ocean", "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": ["Indian Ocean"]}, "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": -31.0}, "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": 19.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 34.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -33.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -23.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-08-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[21.47, -26.97], [22.0, -26.75], [22.3, -26.87], [22.47, -26.47], [23.0, -26.25], [23.53, -26.47], [23.68, -26.82], [24.03, -26.97], [24.25, -27.5], [24.03, -28.03], [23.5, -28.25], [23.25, -28.15], [23.18, -28.18], [23.03, -28.53], [22.5, -28.75], [21.97, -28.53], [21.82, -28.18], [21.47, -28.03], [21.25, -27.5], [21.47, -26.97]]], [[[25.53, -26.97], [25.75, -27.5], [25.53, -28.03], [25.0, -28.25], [24.47, -28.03], [24.25, -27.5], [24.47, -26.97], [25.0, -26.75], [25.53, -26.97]]]]}, "2013-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.97, -22.97], [19.5, -22.75], [20.03, -22.97], [20.18, -23.32], [20.25, -23.35], [20.5, -23.25], [21.03, -23.47], [21.18, -23.82], [21.53, -23.97], [21.68, -24.32], [21.75, -24.35], [22.0, -24.25], [22.53, -24.47], [22.68, -24.82], [23.03, -24.97], [23.25, -25.5], [23.15, -25.75], [23.18, -25.82], [23.53, -25.97], [23.75, -26.5], [23.65, -26.75], [23.68, -26.82], [23.75, -26.85], [24.0, -26.75], [24.25, -26.85], [24.5, -26.75], [24.75, -26.85], [25.0, -26.75], [25.53, -26.97], [25.68, -27.32], [25.75, -27.35], [26.0, -27.25], [26.53, -27.47], [26.68, -27.82], [26.75, -27.85], [27.0, -27.75], [27.53, -27.97], [27.68, -28.32], [28.03, -28.47], [28.25, -29.0], [28.15, -29.25], [28.18, -29.32], [28.25, -29.35], [28.5, -29.25], [29.03, -29.47], [29.18, -29.82], [29.25, -29.85], [29.32, -29.82], [29.47, -29.47], [29.82, -29.32], [29.97, -28.97], [30.32, -28.82], [30.47, -28.47], [31.0, -28.25], [31.25, -28.35], [31.5, -28.25], [32.03, -28.47], [32.25, -29.0], [32.15, -29.25], [32.25, -29.5], [32.03, -30.03], [31.5, -30.25], [32.03, -30.47], [32.25, -31.0], [32.15, -31.25], [32.25, -31.5], [32.15, -31.75], [32.18, -31.82], [32.53, -31.97], [32.75, -32.5], [32.53, -33.03], [32.18, -33.18], [32.03, -33.53], [31.5, -33.75], [31.25, -33.65], [31.0, -33.75], [30.5, -33.54], [30.0, -33.75], [29.75, -33.65], [29.5, -33.75], [29.25, -33.65], [29.0, -33.75], [28.75, -33.65], [28.5, -33.75], [27.97, -33.53], [27.82, -33.18], [27.75, -33.15], [27.5, -33.25], [27.25, -33.15], [27.0, -33.25], [26.75, -33.15], [26.5, -33.25], [26.25, -33.15], [26.0, -33.25], [25.75, -33.15], [25.5, -33.25], [25.25, -33.15], [25.0, -33.25], [24.47, -33.03], [24.25, -32.5], [24.47, -31.97], [24.82, -31.82], [24.85, -31.75], [24.82, -31.68], [24.47, -31.53], [24.32, -31.18], [23.97, -31.03], [23.75, -30.5], [23.85, -30.25], [23.82, -30.18], [23.47, -30.03], [23.25, -29.5], [23.35, -29.25], [23.32, -29.18], [22.97, -29.03], [22.8, -28.62], [22.5, -28.75], [21.97, -28.53], [21.82, -28.18], [21.47, -28.03], [21.25, -27.5], [21.46, -27.0], [21.32, -26.68], [20.97, -26.53], [20.82, -26.18], [20.47, -26.03], [20.32, -25.68], [19.97, -25.53], [19.82, -25.18], [19.47, -25.03], [19.32, -24.68], [18.97, -24.53], [18.75, -24.0], [18.85, -23.75], [18.75, -23.5], [18.97, -22.97]], [[31.25, -30.15], [31.18, -30.18], [31.15, -30.25], [31.18, -30.32], [31.25, -30.35], [31.5, -30.25], [31.25, -30.15]]]]}, "2013-08-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.97, -22.97], [19.5, -22.75], [20.03, -22.97], [20.18, -23.32], [20.25, -23.35], [20.5, -23.25], [21.03, -23.47], [21.18, -23.82], [21.53, -23.97], [21.68, -24.32], [21.75, -24.35], [22.0, -24.25], [22.53, -24.47], [22.68, -24.82], [23.03, -24.97], [23.25, -25.5], [23.15, -25.75], [23.18, -25.82], [23.53, -25.97], [23.75, -26.5], [23.65, -26.75], [23.68, -26.82], [23.75, -26.85], [24.0, -26.75], [24.25, -26.85], [24.5, -26.75], [24.75, -26.85], [25.0, -26.75], [25.53, -26.97], [25.68, -27.32], [25.75, -27.35], [26.0, -27.25], [26.53, -27.47], [26.68, -27.82], [26.75, -27.85], [27.0, -27.75], [27.53, -27.97], [27.68, -28.32], [28.03, -28.47], [28.18, -28.82], [28.53, -28.97], [28.68, -29.32], [28.75, -29.35], [29.0, -29.25], [29.25, -29.35], [29.32, -29.32], [29.38, -29.2], [28.97, -29.03], [28.75, -28.5], [28.97, -27.97], [29.5, -27.75], [29.75, -27.85], [30.0, -27.75], [30.25, -27.85], [30.32, -27.82], [30.47, -27.47], [31.0, -27.25], [31.25, -27.35], [31.32, -27.32], [31.47, -26.97], [32.0, -26.75], [32.53, -26.97], [32.75, -27.5], [32.65, -27.75], [32.75, -28.0], [32.65, -28.25], [32.75, -28.5], [32.65, -28.75], [32.68, -28.82], [32.75, -28.85], [33.0, -28.75], [33.53, -28.97], [33.68, -29.32], [34.03, -29.47], [34.25, -30.0], [34.15, -30.25], [34.25, -30.5], [34.03, -31.03], [33.5, -31.25], [33.25, -31.15], [33.18, -31.18], [33.15, -31.25], [33.18, -31.32], [33.53, -31.47], [33.75, -32.0], [33.53, -32.53], [33.18, -32.68], [33.03, -33.03], [32.68, -33.18], [32.53, -33.53], [32.0, -33.75], [31.75, -33.65], [31.5, -33.75], [31.25, -33.65], [31.0, -33.75], [30.5, -33.54], [30.0, -33.75], [29.75, -33.65], [29.5, -33.75], [29.25, -33.65], [29.0, -33.75], [28.75, -33.65], [28.5, -33.75], [27.97, -33.53], [27.82, -33.18], [27.75, -33.15], [27.5, -33.25], [27.25, -33.15], [27.0, -33.25], [26.75, -33.15], [26.5, -33.25], [26.25, -33.15], [26.0, -33.25], [25.75, -33.15], [25.5, -33.25], [25.25, -33.15], [25.0, -33.25], [24.47, -33.03], [24.25, -32.5], [24.47, -31.97], [24.82, -31.82], [24.85, -31.75], [24.82, -31.68], [24.47, -31.53], [24.32, -31.18], [23.97, -31.03], [23.75, -30.5], [23.85, -30.25], [23.82, -30.18], [23.47, -30.03], [23.25, -29.5], [23.35, -29.25], [23.32, -29.18], [22.97, -29.03], [22.8, -28.62], [22.5, -28.75], [21.97, -28.53], [21.82, -28.18], [21.47, -28.03], [21.25, -27.5], [21.46, -27.0], [21.32, -26.68], [20.97, -26.53], [20.82, -26.18], [20.47, -26.03], [20.32, -25.68], [19.97, -25.53], [19.82, -25.18], [19.47, -25.03], [19.32, -24.68], [18.97, -24.53], [18.75, -24.0], [18.85, -23.75], [18.75, -23.5], [18.97, -22.97]]]]}, "2013-08-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[18.97, -22.97], [19.5, -22.75], [20.03, -22.97], [20.18, -23.32], [20.25, -23.35], [20.5, -23.25], [21.03, -23.47], [21.18, -23.82], [21.53, -23.97], [21.68, -24.32], [21.75, -24.35], [22.0, -24.25], [22.53, -24.47], [22.68, -24.82], [23.03, -24.97], [23.25, -25.5], [23.15, -25.75], [23.18, -25.82], [23.53, -25.97], [23.75, -26.5], [23.65, -26.75], [23.68, -26.82], [23.75, -26.85], [24.0, -26.75], [24.25, -26.85], [24.5, -26.75], [24.75, -26.85], [25.0, -26.75], [25.53, -26.97], [25.68, -27.32], [25.75, -27.35], [26.0, -27.25], [26.53, -27.47], [26.68, -27.82], [26.75, -27.85], [27.0, -27.75], [27.53, -27.97], [27.68, -28.32], [28.03, -28.47], [28.18, -28.82], [28.53, -28.97], [28.68, -29.32], [28.75, -29.35], [29.0, -29.25], [29.25, -29.35], [29.32, -29.32], [29.38, -29.2], [28.97, -29.03], [28.75, -28.5], [28.97, -27.97], [29.5, -27.75], [29.75, -27.85], [29.82, -27.82], [29.85, -27.75], [29.75, -27.5], [29.85, -27.25], [29.75, -27.0], [29.97, -26.47], [30.5, -26.25], [31.03, -26.47], [31.25, -27.0], [31.47, -26.47], [32.0, -26.25], [32.53, -26.47], [32.68, -26.82], [33.03, -26.97], [33.25, -27.5], [33.15, -27.75], [33.18, -27.82], [33.25, -27.85], [33.32, -27.82], [33.47, -27.47], [34.0, -27.25], [34.53, -27.47], [34.75, -28.0], [34.65, -28.25], [34.75, -28.5], [34.65, -28.75], [34.75, -29.0], [34.65, -29.25], [34.75, -29.5], [34.65, -29.75], [34.68, -29.82], [35.03, -29.97], [35.25, -30.5], [35.15, -30.75], [35.25, -31.0], [35.15, -31.25], [35.25, -31.5], [35.03, -32.03], [34.5, -32.25], [34.25, -32.15], [34.0, -32.25], [33.7, -32.12], [33.53, -32.53], [33.18, -32.68], [33.03, -33.03], [32.68, -33.18], [32.53, -33.53], [32.0, -33.75], [31.75, -33.65], [31.5, -33.75], [31.25, -33.65], [31.0, -33.75], [30.5, -33.54], [30.0, -33.75], [29.75, -33.65], [29.5, -33.75], [29.25, -33.65], [29.0, -33.75], [28.75, -33.65], [28.5, -33.75], [27.97, -33.53], [27.82, -33.18], [27.75, -33.15], [27.5, -33.25], [27.25, -33.15], [27.0, -33.25], [26.75, -33.15], [26.5, -33.25], [26.25, -33.15], [26.0, -33.25], [25.75, -33.15], [25.5, -33.25], [25.25, -33.15], [25.0, -33.25], [24.47, -33.03], [24.25, -32.5], [24.47, -31.97], [24.82, -31.82], [24.85, -31.75], [24.82, -31.68], [24.47, -31.53], [24.32, -31.18], [23.97, -31.03], [23.75, -30.5], [23.85, -30.25], [23.82, -30.18], [23.47, -30.03], [23.25, -29.5], [23.35, -29.25], [23.32, -29.18], [22.97, -29.03], [22.75, -28.5], [22.85, -28.25], [22.82, -28.18], [22.75, -28.15], [22.5, -28.25], [21.97, -28.03], [21.75, -27.5], [21.85, -27.25], [21.82, -27.18], [21.47, -27.03], [21.32, -26.68], [20.97, -26.53], [20.82, -26.18], [20.47, -26.03], [20.32, -25.68], [19.97, -25.53], [19.82, -25.18], [19.47, -25.03], [19.32, -24.68], [18.97, -24.53], [18.75, -24.0], [18.85, -23.75], [18.75, -23.5], [18.97, -22.97]], [[31.15, -27.25], [31.18, -27.32], [31.25, -27.35], [31.32, -27.32], [31.35, -27.25], [31.25, -27.0], [31.15, -27.25]], [[33.32, -31.18], [33.25, -31.15], [33.18, -31.18], [33.15, -31.25], [33.18, -31.32], [33.3, -31.37], [33.35, -31.25], [33.32, -31.18]]]]}, "2013-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.47, -26.97], [25.0, -26.75], [25.53, -26.97], [25.68, -27.32], [25.75, -27.35], [26.0, -27.25], [26.53, -27.47], [26.68, -27.82], [26.75, -27.85], [27.0, -27.75], [27.53, -27.97], [27.68, -28.32], [28.03, -28.47], [28.18, -28.82], [28.53, -28.97], [28.68, -29.32], [28.75, -29.35], [29.0, -29.25], [29.25, -29.35], [29.32, -29.32], [29.38, -29.2], [28.97, -29.03], [28.75, -28.5], [28.97, -27.97], [29.5, -27.75], [29.75, -27.85], [29.82, -27.82], [29.85, -27.75], [29.75, -27.5], [29.85, -27.25], [29.75, -27.0], [29.97, -26.47], [30.5, -26.25], [31.03, -26.47], [31.25, -27.0], [31.47, -26.47], [32.0, -26.25], [32.53, -26.47], [32.68, -26.82], [33.03, -26.97], [33.25, -27.5], [33.15, -27.75], [33.18, -27.82], [33.25, -27.85], [33.32, -27.82], [33.47, -27.47], [34.0, -27.25], [34.53, -27.47], [34.75, -28.0], [34.65, -28.25], [34.75, -28.5], [34.65, -28.75], [34.75, -29.0], [34.65, -29.25], [34.75, -29.5], [34.65, -29.75], [34.68, -29.82], [35.03, -29.97], [35.25, -30.5], [35.15, -30.75], [35.25, -31.0], [35.15, -31.25], [35.25, -31.5], [35.03, -32.03], [34.5, -32.25], [34.25, -32.15], [34.0, -32.25], [33.7, -32.12], [33.53, -32.53], [33.18, -32.68], [33.03, -33.03], [32.68, -33.18], [32.53, -33.53], [32.0, -33.75], [31.75, -33.65], [31.5, -33.75], [30.97, -33.53], [30.82, -33.18], [30.75, -33.15], [30.5, -33.25], [29.97, -33.03], [29.75, -32.5], [29.85, -32.25], [29.75, -32.0], [29.85, -31.75], [29.82, -31.68], [29.75, -31.65], [29.5, -31.75], [29.25, -31.65], [29.0, -31.75], [28.75, -31.65], [28.5, -31.75], [28.25, -31.65], [28.18, -31.68], [28.03, -32.03], [27.5, -32.25], [27.25, -32.15], [27.0, -32.25], [26.47, -32.03], [26.25, -31.5], [26.35, -31.25], [26.32, -31.18], [25.97, -31.03], [25.75, -30.5], [25.85, -30.25], [25.82, -30.18], [25.47, -30.03], [25.32, -29.68], [24.97, -29.53], [24.75, -29.0], [24.85, -28.75], [24.82, -28.68], [24.47, -28.53], [24.25, -28.0], [24.35, -27.75], [24.25, -27.5], [24.47, -26.97]], [[31.15, -27.25], [31.18, -27.32], [31.25, -27.35], [31.32, -27.32], [31.35, -27.25], [31.25, -27.0], [31.15, -27.25]], [[33.35, -31.25], [33.32, -31.18], [33.25, -31.15], [33.18, -31.18], [33.15, -31.25], [33.18, -31.32], [33.3, -31.37], [33.35, -31.25]]]]}, "2013-08-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.85, -27.25], [29.75, -27.0], [29.97, -26.47], [30.5, -26.25], [31.03, -26.47], [31.25, -27.0], [31.47, -26.47], [32.0, -26.25], [32.53, -26.47], [32.68, -26.82], [33.03, -26.97], [33.25, -27.5], [33.15, -27.75], [33.18, -27.82], [33.25, -27.85], [33.32, -27.82], [33.47, -27.47], [34.0, -27.25], [34.53, -27.47], [34.75, -28.0], [34.65, -28.25], [34.75, -28.5], [34.65, -28.75], [34.75, -29.0], [34.65, -29.25], [34.75, -29.5], [34.65, -29.75], [34.68, -29.82], [35.03, -29.97], [35.25, -30.5], [35.15, -30.75], [35.25, -31.0], [35.15, -31.25], [35.25, -31.5], [35.03, -32.03], [34.5, -32.25], [34.25, -32.15], [34.0, -32.25], [33.47, -32.03], [33.25, -31.5], [33.35, -31.25], [33.32, -31.18], [32.97, -31.03], [32.82, -30.68], [32.47, -30.53], [32.25, -30.0], [32.35, -29.75], [32.25, -29.5], [32.35, -29.25], [32.25, -29.0], [32.35, -28.75], [32.32, -28.68], [32.25, -28.65], [32.0, -28.75], [31.5, -28.54], [31.0, -28.75], [30.75, -28.65], [30.5, -28.75], [29.97, -28.53], [29.75, -28.0], [29.85, -27.75], [29.75, -27.5], [29.85, -27.25]], [[31.15, -27.25], [31.18, -27.32], [31.3, -27.37], [31.35, -27.25], [31.25, -27.0], [31.15, -27.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.767583578957783}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.884791178214437}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.307357357050137, 20.39370790544956, 20.77759799184014, 21.13476376321762, 21.037656695037924, 22.577672145591862]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.45873222691597, 25.261462517064672, 25.76196750397952, 26.663254034204726, 26.625498656379023, 26.13369382174568]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.765818008113977, 5.712819878763699, 5.089058537616487, 4.8513394284969955, 4.107217420629754, 2.8855233394731306]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.086653828452825, 10.767583578957783, 8.736017610228487, 7.979757481332456, 7.064375456917105, 5.4894667974936056]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3685989342912102, 1.8533783999568052, 1.7664002296834398, 1.752406600580632, 1.7319106275031002, 1.681773467709983]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4349166286350001, 3.117728778867659, 3.2649636095629546, 2.6838115859224776, 2.8766993377805106, 2.268539464570709]}}