{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:22.143743", "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": "2015-Dec-13_to_2015-Dec-17_29.5_5.5"}, "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": 2015120000322}, "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": "December 13 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 17 2015"}, "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": "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": 92348.10601320094}, "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": ["Congo DRC", "South Sudan", "Uganda"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-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": 5.5}, "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": 29.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "29.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 27.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 31.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 3.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 7.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-12-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[28.47, 5.47], [28.25, 6.0], [28.47, 6.53], [29.0, 6.75], [29.25, 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"coordinates": [[[[27.46, 5.5], [27.25, 6.0], [27.35, 6.25], [27.25, 6.5], [27.35, 6.75], [27.25, 7.0], [27.47, 7.53], [28.0, 7.75], [28.53, 7.53], [28.75, 7.0], [28.65, 6.75], [28.7, 6.63], [28.82, 6.68], [28.97, 7.03], [29.5, 7.25], [30.03, 7.03], [30.18, 6.68], [30.25, 6.65], [30.5, 6.75], [31.03, 6.53], [31.25, 6.0], [31.15, 5.75], [31.25, 5.5], [31.15, 5.25], [31.18, 5.18], [31.53, 5.03], [31.75, 4.5], [31.65, 4.25], [31.68, 4.18], [32.03, 4.03], [32.25, 3.5], [32.03, 2.97], [31.5, 2.75], [30.97, 2.97], [30.82, 3.32], [30.5, 3.46], [30.0, 3.25], [29.47, 3.47], [29.32, 3.82], [29.25, 3.85], [29.18, 3.82], [29.03, 3.47], [28.5, 3.25], [27.97, 3.47], [27.82, 3.82], [27.47, 3.97], [27.25, 4.5], [27.35, 4.75], [27.25, 5.0], [27.46, 5.5]]]]}, "2015-12-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.46, 5.5], [27.25, 6.0], [27.35, 6.25], [27.25, 6.5], [27.35, 6.75], [27.25, 7.0], [27.47, 7.53], [28.0, 7.75], [28.53, 7.53], [28.75, 7.0], [28.65, 6.75], [28.7, 6.63], 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