{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:12:37.791466", "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-Apr-02_to_2020-Apr-04_27.0_-27.0"}, "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": 2020040000091}, "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": "April 02 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 04 2020"}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 66566.8506536296}, "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"]}, "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": -27.0}, "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": 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": 26.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 30.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -27.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -25.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[25.854, -26.25], [25.75, -26.0], [25.97, -25.47], [26.323, -25.323], [26.47, -24.97], [27.0, -24.75], [27.25, -24.854], [27.5, -24.75], [28.03, -24.97], [28.177, -25.323], [28.25, -25.354], [28.323, -25.323], [28.47, -24.97], [29.0, -24.75], [29.25, -24.854], [29.323, -24.823], [29.47, -24.47], [30.0, -24.25], [30.25, -24.354], [30.5, -24.25], [31.03, -24.47], [31.25, -25.0], [31.03, -25.53], [30.5, -25.75], [30.25, -25.646], [30.177, -25.677], [30.146, -25.75], [30.25, -26.0], [30.03, -26.53], [29.677, -26.677], [29.53, -27.03], [29.0, -27.25], [28.75, -27.146], [28.677, -27.177], [28.646, -27.25], [28.75, -27.5], [28.53, -28.03], [28.0, -28.25], [27.47, -28.03], [27.323, -27.677], [27.25, -27.646], [27.0, -27.75], [26.75, -27.646], [26.5, -27.75], [25.97, -27.53], [25.75, -27.0], [25.854, -26.75], [25.75, -26.5], [25.854, -26.25]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-Africa"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": 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anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8234325011893102, -2.364727044299143, -1.8038316916517585]}}