{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:53:38.753381", "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": "2024-Nov-15_to_2024-Nov-17_129.0_-70.0"}, "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": 2024110000271}, "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": "November 15 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 17 2024"}, "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": 55610.12734889394}, "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": ["Antarctica"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Antarctica"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Antarctica"]}, "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": -70.0}, "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": 129.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "129.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 126.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 133.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -70.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -67.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-11-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.47, -68.47], [127.0, -68.25], [127.3, -68.37], [127.47, 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-70.03], [126.25, -69.5], [126.35, -69.25], [126.25, -69.0], [126.47, -68.47]]]]}, "2024-11-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.47, -68.47], [127.0, -68.25], [127.3, -68.37], [127.47, -67.97], [127.82, -67.82], [127.97, -67.47], [128.5, -67.25], [128.75, -67.35], [129.0, -67.25], [129.25, -67.35], [129.5, -67.25], [129.75, -67.35], [130.0, -67.25], [130.25, -67.35], [130.5, -67.25], [130.75, -67.35], [131.0, -67.25], [131.25, -67.35], [131.5, -67.25], [131.75, -67.35], [132.0, -67.25], [132.25, -67.35], [132.5, -67.25], [132.75, -67.35], [133.0, -67.25], [133.25, -67.35], [133.5, -67.25], [134.03, -67.47], [134.25, -68.0], [134.03, -68.53], [133.63, -68.7], [133.75, -69.0], [133.65, -69.25], [133.75, -69.5], [133.53, -70.03], [133.0, -70.25], [132.75, -70.15], [132.5, -70.25], [132.25, -70.15], [132.0, -70.25], [131.75, -70.15], [131.5, -70.25], [131.25, -70.15], [131.0, -70.25], [130.75, -70.15], [130.68, -70.18], [130.53, -70.53], [130.0, -70.75], 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{"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-35.042432530721015, -35.55156555175779, -37.2840783437093]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.937346345137912, -5.370999659882168, -6.686083102673977]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.549242929359167, -5.77413528677215, -7.517535583405532]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3823001768886143, -1.547563736536536, -1.9790521952337212]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.509837066722175, -1.6449519914497355, -2.23617209594387]}}