{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:26:00.802185", "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-Jun-13_to_2021-Jun-18_26.0_-8.0"}, "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": 2021060000516}, "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": "June 13 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 18 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 67236.99386385291}, "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", "Zambia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa", "S.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": -8.0}, "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": 26.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "26.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 25.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 29.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -10.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -6.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-06-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.0, -7.25], [26.53, -7.47], [26.75, -8.0], [26.53, -8.53], [26.0, -8.75], [25.47, -8.53], [25.25, -8.0], [25.47, -7.47], [26.0, -7.25]]]]}, "2021-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.47, -8.53], [25.25, -8.0], [25.47, -7.47], [26.0, -7.25], [26.53, -7.47], [26.7, -7.87], [27.0, -7.75], [27.53, -7.97], [27.75, -8.5], [27.53, -9.03], [27.0, -9.25], [26.47, -9.03], [26.3, -8.62], [26.0, -8.75], [25.47, -8.53]]]]}, "2021-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.25, -8.0], [25.47, -7.47], [25.82, -7.32], [25.97, -6.97], [26.5, -6.75], [26.75, -6.85], [27.0, -6.75], [27.25, -6.85], [27.32, -6.82], [27.47, -6.47], [28.0, -6.25], [28.53, -6.47], [28.75, -7.0], [28.63, -7.3], [28.75, -7.35], [29.0, -7.25], [29.53, -7.47], [29.75, -8.0], [29.65, -8.25], [29.75, -8.5], [29.65, -8.75], [29.75, -9.0], [29.65, -9.25], [29.75, -9.5], [29.65, -9.75], [29.75, -10.0], [29.53, -10.53], [29.0, -10.75], [28.75, -10.65], [28.5, -10.75], [27.97, -10.53], [27.8, -10.12], [27.68, -10.18], [27.53, 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[26.75, -9.15], [26.5, -9.25], [25.97, -9.03], [25.82, -8.68], [25.75, -8.65], [25.5, -8.75], [24.97, -8.53]]]]}, "2021-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.97, -8.53], [24.75, -8.0], [24.97, -7.47], [25.5, -7.25], [25.75, -7.35], [25.82, -7.32], [25.97, -6.97], [26.5, -6.75], [26.75, -6.85], [27.0, -6.75], [27.25, -6.85], [27.32, -6.82], [27.47, -6.47], [28.0, -6.25], [28.53, -6.47], [28.75, -7.0], [28.63, -7.3], [28.75, -7.35], [29.0, -7.25], [29.53, -7.47], [29.75, -8.0], [29.65, -8.25], [29.75, -8.5], [29.65, -8.75], [29.75, -9.0], [29.65, -9.25], [29.75, -9.5], [29.65, -9.75], [29.75, -10.0], [29.53, -10.53], [29.0, -10.75], [28.75, -10.65], [28.5, -10.75], [27.97, -10.53], [27.8, -10.12], [27.68, -10.18], [27.53, -10.53], [27.0, -10.75], [26.47, -10.53], [26.25, -10.0], [26.47, -9.47], [26.82, -9.32], [26.85, -9.25], [26.82, -9.18], [26.75, -9.15], [26.5, -9.25], [25.97, -9.03], [25.82, -8.68], [25.75, -8.65], [25.5, -8.75], [24.97, 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18.215125762371542, 17.93984001569123, 17.960848444519684, 23.77089264991895]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.240240123115484, -1.4353480318070808, -1.4870659728206523, -1.9380648891921055, -1.7677800185962553, -1.2483672301711977]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.240240123115484, -1.5725087122505101, -1.8540611478205165, -2.464245427721096, -2.5197074605332546, -1.262599692321487]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.273302720380848, -1.3786783025024572, -1.4570518440508298, -1.9197006390114644, -1.7809399928394678, -1.348919949617277]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.273302720380848, -1.41211794016744, -1.8804113243132594, -2.294502648600737, -2.456145338950348, -1.3766096334901954]}}