{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:35.256071", "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": "2016-Jan-16_to_2016-Jan-18_30.0_-24.0"}, "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": 2016010000378}, "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": "January 16 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 18 2016"}, "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": 106045.0860748381}, "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", "South Africa", "Zimbabwe"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.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": []}, "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": -24.0}, "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": 25.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 30.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -24.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -19.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-01-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.35, -21.75], [25.25, -21.5], [25.47, -20.97], [26.0, 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-21.75]]]]}, "2016-01-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.35, -21.75], [25.25, -21.5], [25.47, -20.97], [26.0, -20.75], [26.25, -20.85], [26.5, -20.75], [26.75, -20.85], [27.0, -20.75], [27.25, -20.85], [27.5, -20.75], [27.75, -20.85], [27.82, -20.82], [27.85, -20.75], [27.75, -20.5], [27.85, -20.25], [27.75, -20.0], [27.97, -19.47], [28.5, -19.25], [28.75, -19.35], [29.0, -19.25], [29.25, -19.35], [29.5, -19.25], [30.03, -19.47], [30.25, -20.0], [30.15, -20.25], [30.25, -20.5], [30.15, -20.75], [30.25, -21.0], [30.03, -21.53], [29.68, -21.68], [29.65, -21.75], [29.75, -22.0], [29.65, -22.25], [29.68, -22.32], [29.75, -22.35], [30.0, -22.25], [30.53, -22.47], [30.75, -23.0], [30.54, -23.5], [30.75, -24.0], [30.53, -24.53], [30.0, -24.75], [29.75, -24.65], [29.5, -24.75], [28.97, -24.53], [28.82, -24.18], [28.47, -24.03], [28.25, -23.5], [28.35, -23.25], [28.3, -23.12], [28.18, -23.18], [28.03, -23.53], [27.5, -23.75], [27.25, -23.65], [27.0, -23.75], 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"description": "The daily evolution of mean t2m anomalies.", "value": [-3.2595847775523, -3.87640118575002, -3.525440060251059]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.021743858318246, -4.764398624756723, -4.170201208024423]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3255266000639825, -1.5484972194485487, -1.4137855304286706]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.57463219791225, -1.9285901545375468, -1.9028331979312447]}}