{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:23:30.314553", "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-Feb-28_to_2021-Mar-02_23.0_-34.0"}, "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": 2021020002413}, "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": "February 28 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 02 2021"}, "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": 53433.34599679143}, "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": ["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": -34.0}, "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": 23.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "23.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 19.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 25.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -35.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -33.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-02-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.47, -33.47], [20.0, -33.25], [20.5, -33.46], [21.0, -33.25], [21.25, -33.35], [21.5, -33.25], [22.03, -33.47], [22.18, -33.82], [22.25, -33.85], [22.32, -33.82], [22.47, -33.47], [23.0, -33.25], [23.25, -33.35], [23.5, -33.25], [24.03, -33.47], [24.18, -33.82], [24.25, -33.85], [24.5, -33.75], [24.75, -33.85], [25.0, -33.75], [25.53, -33.97], [25.75, -34.5], [25.53, -35.03], [25.18, -35.18], [25.03, -35.53], [24.5, -35.75], [24.25, -35.65], [24.0, -35.75], [23.75, -35.65], [23.68, -35.68], [23.53, -36.03], [23.0, -36.25], [22.75, -36.15], [22.5, -36.25], [21.97, -36.03], [21.82, -35.68], [21.47, -35.53], [21.25, -35.0], [21.35, -34.75], [21.32, -34.68], [21.25, -34.65], [21.18, -34.68], [21.03, -35.03], [20.5, -35.25], [20.25, -35.15], [20.0, -35.25], [19.47, -35.03], [19.25, -34.5], [19.35, -34.25], [19.25, -34.0], [19.47, -33.47]]]]}, "2021-03-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.47, -33.47], [20.0, -33.25], [20.5, -33.46], [21.0, -33.25], [21.25, -33.35], [21.5, -33.25], [22.03, -33.47], [22.18, -33.82], [22.25, -33.85], [22.32, -33.82], [22.47, -33.47], [23.0, -33.25], [23.25, -33.35], [23.5, -33.25], [24.03, -33.47], [24.18, -33.82], [24.25, -33.85], [24.5, -33.75], [24.75, -33.85], [25.0, -33.75], [25.53, -33.97], [25.75, -34.5], [25.53, -35.03], [25.18, -35.18], [25.03, -35.53], [24.5, -35.75], [24.25, -35.65], [24.0, -35.75], [23.75, -35.65], [23.68, -35.68], [23.53, -36.03], [23.0, -36.25], [22.75, -36.15], [22.5, -36.25], [21.97, -36.03], [21.82, -35.68], [21.47, -35.53], [21.25, -35.0], [21.35, -34.75], [21.32, -34.68], [21.25, -34.65], [21.18, -34.68], [21.03, -35.03], [20.5, -35.25], [20.25, -35.15], [20.0, -35.25], [19.47, -35.03], [19.25, -34.5], [19.35, -34.25], [19.25, -34.0], [19.47, -33.47]]]]}, "2021-03-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[19.47, -33.47], [20.0, -33.25], [20.5, -33.46], [21.0, -33.25], [21.25, -33.35], [21.5, -33.25], [22.03, -33.47], [22.18, -33.82], [22.25, -33.85], [22.32, -33.82], [22.47, -33.47], [23.0, -33.25], 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"The daily evolution of mean t2m.", "value": [22.9239479917307, 23.908685138960152, 23.00541975388495]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.36422577525599, 26.42361618397149, 25.143277692066874]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.9723121766427798, 2.958905918455506, 2.0844748718863677]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.89000129468576, 5.309445016827169, 3.6971819494887654]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5097813813913288, 2.170689406466971, 1.540500574773743]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.868971228268801, 3.0394965079222866, 1.9180962390321916]}}