{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:21:33.486614", "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-Sep-19_to_2020-Sep-24_27.0_17.5"}, "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": 2020090002017}, "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 19 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 24 2020"}, "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": 67897.1490985413}, "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": ["Chad", "Sudan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": 17.5}, "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": 27.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "27.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 22.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 27.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 15.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 18.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-09-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.32, 18.18], [25.47, 18.53], [26.0, 18.75], [26.5, 18.54], 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"MultiPolygon", "coordinates": [[[[22.97, 15.47], [22.75, 16.0], [22.97, 16.53], [23.5, 16.75], [24.03, 16.53], [24.25, 16.0], [24.03, 15.47], [23.5, 15.25], [22.97, 15.47]]], [[[25.47, 18.53], [26.0, 18.75], [26.5, 18.54], [27.0, 18.75], [27.25, 18.65], [27.5, 18.75], [28.03, 18.53], [28.25, 18.0], [28.15, 17.75], [28.25, 17.5], [28.15, 17.25], [28.25, 17.0], [28.03, 16.47], [27.5, 16.25], [27.25, 16.35], [27.0, 16.25], [26.5, 16.46], [26.0, 16.25], [25.75, 16.35], [25.5, 16.25], [25.25, 16.35], [25.0, 16.25], [24.47, 16.47], [24.25, 17.0], [24.47, 17.53], [24.82, 17.68], [24.97, 18.03], [25.32, 18.18], [25.47, 18.53]]]]}, "2020-09-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[22.25, 16.5], [22.47, 17.03], [23.0, 17.25], [23.25, 17.15], [23.5, 17.25], [23.75, 17.15], [23.82, 17.18], [23.97, 17.53], [24.32, 17.68], [24.47, 18.03], [24.82, 18.18], [24.85, 18.25], [24.75, 18.5], [24.97, 19.03], [25.5, 19.25], [26.03, 19.03], [26.18, 18.68], [26.5, 18.54], [27.0, 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