{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:13:01.908542", "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": "2021-Aug-12_to_2021-Aug-16_24.0_26.5"}, "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": 2021080002213}, "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 12 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 16 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 165936.96739073054}, "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": ["Egypt", "Libya"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa", "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": 26.5}, "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": 24.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "24.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 22.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 27.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 28.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[22.35, 26.75], [22.25, 27.0], [22.35, 27.25], [22.32, 27.32], [21.97, 27.47], [21.75, 28.0], [21.85, 28.25], [21.75, 28.5], 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IPCC regions affected", "value": ["Sahara"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[21.75, 28.5], [21.97, 29.03], [22.5, 29.25], [22.75, 29.15], [23.0, 29.25], [23.53, 29.03], [23.75, 28.5], [23.53, 27.97], [23.18, 27.82], [23.03, 27.47], [22.5, 27.25], [21.97, 27.47], [21.75, 28.0], [21.85, 28.25], [21.75, 28.5]]]]}, "2021-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[21.75, 28.5], [21.97, 29.03], [22.5, 29.25], [22.75, 29.15], [23.0, 29.25], [23.5, 29.04], [24.0, 29.25], [24.25, 29.15], [24.5, 29.25], [24.75, 29.15], [25.0, 29.25], [25.53, 29.03], [25.68, 28.68], [26.03, 28.53], [26.18, 28.18], [26.25, 28.15], [26.5, 28.25], [27.03, 28.03], [27.18, 27.68], [27.53, 27.53], [27.75, 27.0], [27.53, 26.47], [27.0, 26.25], [26.75, 26.35], [26.5, 26.25], [25.97, 26.47], [25.82, 26.82], [25.75, 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standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.77208285275354, 2.2368579112864952, 2.1719031348920708, 2.5854595979138226, 2.738294694834962]}}