{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:52:06.469323", "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-Jun-22_to_2024-Jun-24_45.5_63.5"}, "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": 2024060000560}, "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 22 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 24 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": 64915.317683398396}, "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": ["Russian Federation"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Europe"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 63.5}, "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": 45.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "45.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 43.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 48.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 61.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 64.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-06-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, 63.25], [42.75, 63.5], [42.85, 63.75], [42.75, 64.0], [42.97, 64.53], [43.32, 64.68], [43.47, 65.03], [44.0, 65.25], [44.25, 65.15], [44.5, 65.25], [44.75, 65.15], [45.0, 65.25], [45.25, 65.15], [45.5, 65.25], [45.75, 65.15], [46.0, 65.25], [46.25, 65.15], [46.5, 65.25], [46.75, 65.15], [47.0, 65.25], [47.25, 65.15], [47.5, 65.25], [48.03, 65.03], [48.18, 64.68], [48.53, 64.53], [48.75, 64.0], [48.65, 63.75], [48.75, 63.5], [48.65, 63.25], [48.75, 63.0], [48.53, 62.47], [48.0, 62.25], [47.75, 62.35], [47.5, 62.25], [47.25, 62.35], [47.18, 62.32], [47.03, 61.97], [46.5, 61.75], [46.25, 61.85], [46.18, 61.82], [46.03, 61.47], [45.5, 61.25], [45.25, 61.35], [45.0, 61.25], [44.47, 61.47], [44.32, 61.82], [44.25, 61.85], [44.0, 61.75], [43.75, 61.85], [43.5, 61.75], [42.97, 61.97], [42.75, 62.5], [42.85, 62.75], [42.75, 63.0], [42.85, 63.25]]]]}, "2024-06-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, 63.25], [42.75, 63.5], [42.85, 63.75], [42.75, 64.0], [42.97, 64.53], [43.32, 64.68], [43.47, 65.03], [44.0, 65.25], [44.25, 65.15], [44.5, 65.25], [44.75, 65.15], [45.0, 65.25], [45.25, 65.15], [45.5, 65.25], [45.75, 65.15], [46.0, 65.25], [46.25, 65.15], [46.5, 65.25], [46.75, 65.15], [47.0, 65.25], [47.25, 65.15], [47.5, 65.25], [48.03, 65.03], [48.18, 64.68], [48.53, 64.53], [48.75, 64.0], [48.65, 63.75], [48.75, 63.5], [48.65, 63.25], [48.75, 63.0], [48.53, 62.47], [48.0, 62.25], [47.75, 62.35], [47.5, 62.25], [47.25, 62.35], [47.18, 62.32], [47.03, 61.97], [46.5, 61.75], [46.25, 61.85], [46.18, 61.82], [46.03, 61.47], [45.5, 61.25], [45.25, 61.35], [45.0, 61.25], [44.47, 61.47], [44.32, 61.82], [44.25, 61.85], [44.0, 61.75], [43.75, 61.85], [43.5, 61.75], [42.97, 61.97], [42.75, 62.5], [42.85, 62.75], [42.75, 63.0], [42.85, 63.25]]]]}, "2024-06-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, 63.25], [42.75, 63.5], [42.85, 63.75], [42.75, 64.0], [42.97, 64.53], [43.32, 64.68], [43.47, 65.03], [44.0, 65.25], [44.25, 65.15], [44.5, 65.25], [44.75, 65.15], [45.0, 65.25], 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t2m", "description": "The daily evolution of mean t2m.", "value": [7.711571037767328, 7.882217827275269, 8.947047434962201]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.032237082921995, 6.80993731528423, 7.653095608139722]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-7.305232328762273, -7.294308220051355, -6.388288672735856]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.191498428621571, -7.681832483503342, -7.291013545118517]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6380930380962049, -1.6401960125427941, -1.429505439155737]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8030522223131453, -1.7257088901387851, -1.6037548360258795]}}