{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:58:44.723363", "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-May-11_to_2024-May-17_38.0_40.5"}, "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": 2024050000337}, "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": "May 11 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 17 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 299059.8934538293}, "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": ["T\u00fcrkiye"]}, "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": ["Black Sea"]}, "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": 40.5}, "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": 38.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "38.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 27.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 40.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 42.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[36.53, 38.47], [36.0, 38.25], [35.75, 38.35], [35.68, 38.32], [35.65, 38.25], [35.75, 38.0], [35.53, 37.47], [35.18, 37.32], [35.03, 36.97], [34.5, 36.75], [34.25, 36.85], [34.0, 36.75], [33.75, 36.85], [33.5, 36.75], [33.25, 36.85], [33.0, 36.75], [32.75, 36.85], [32.5, 36.75], [31.97, 36.97], [31.82, 37.32], [31.75, 37.35], [31.5, 37.25], [30.97, 37.47], [30.82, 37.82], [30.75, 37.85], [30.5, 37.75], [30.25, 37.85], [30.0, 37.75], [29.47, 37.97], [29.32, 38.32], [28.97, 38.47], [28.82, 38.82], [28.5, 38.96], [28.0, 38.75], [27.75, 38.85], [27.5, 38.75], [26.97, 38.97], [26.82, 39.32], [26.47, 39.47], [26.25, 40.0], [26.47, 40.53], [27.0, 40.75], [27.25, 40.65], [27.5, 40.75], [27.75, 40.65], [28.0, 40.75], [28.25, 40.65], [28.32, 40.68], [28.47, 41.03], [28.82, 41.18], [28.97, 41.53], [29.5, 41.75], [29.75, 41.65], [30.0, 41.75], [30.25, 41.65], [30.5, 41.75], [30.75, 41.65], [31.0, 41.75], [31.25, 41.65], [31.32, 41.68], [31.47, 42.03], [32.0, 42.25], [32.25, 42.15], [32.32, 42.18], [32.47, 42.53], [33.0, 42.75], [33.25, 42.65], [33.5, 42.75], [33.75, 42.65], [34.0, 42.75], [34.25, 42.65], [34.5, 42.75], [34.75, 42.65], [35.0, 42.75], [35.53, 42.53], [35.68, 42.18], [36.03, 42.03], [36.18, 41.68], [36.25, 41.65], [36.5, 41.75], [36.75, 41.65], [37.0, 41.75], [37.25, 41.65], [37.5, 41.75], [37.75, 41.65], [38.0, 41.75], [38.25, 41.65], [38.5, 41.75], [38.75, 41.65], [39.0, 41.75], [39.25, 41.65], [39.5, 41.75], [39.75, 41.65], [40.0, 41.75], [40.53, 41.53], [40.75, 41.0], [40.53, 40.47], [40.0, 40.25], [39.75, 40.35], [39.5, 40.25], [39.25, 40.35], [39.18, 40.32], [39.03, 39.97], [38.5, 39.75], [38.25, 39.85], [38.18, 39.82], [38.03, 39.47], [37.68, 39.32], [37.53, 38.97], [37.0, 38.75], [36.75, 38.85], [36.68, 38.82], [36.53, 38.47]], [[34.2, 41.13], [34.32, 41.18], [34.38, 41.3], [34.25, 41.35], [34.18, 41.32], [34.15, 41.25], [34.2, 41.13]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean", "W.C.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-05-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[28.97, 40.53], [29.5, 40.75], [29.75, 40.65], [30.0, 40.75], [30.53, 40.53], [30.75, 40.0], [30.54, 39.5], [30.75, 39.0], [30.53, 38.47], [30.0, 38.25], [29.47, 38.47], [29.32, 38.82], [29.25, 38.85], [29.0, 38.75], [28.47, 38.97], [28.25, 39.5], [28.47, 40.03], [28.82, 40.18], [28.97, 40.53]]]]}, "2024-05-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[28.47, 38.97], [28.25, 39.5], [28.47, 40.03], [28.82, 40.18], [28.97, 40.53], [29.5, 40.75], [29.75, 40.65], [30.0, 40.75], [30.25, 40.65], [30.32, 40.68], [30.47, 41.03], [31.0, 41.25], [31.25, 41.15], [31.5, 41.25], [31.75, 41.15], [32.0, 41.25], [32.25, 41.15], [32.5, 41.25], [32.75, 41.15], [33.0, 41.25], [33.53, 41.03], [33.68, 40.68], [34.03, 40.53], [34.18, 40.18], [34.25, 40.15], [34.32, 40.18], [34.47, 40.53], [35.0, 40.75], [35.25, 40.65], [35.5, 40.75], [35.75, 40.65], [35.82, 40.68], [35.97, 41.03], [36.5, 41.25], [37.03, 41.03], [37.18, 40.68], [37.53, 40.53], [37.75, 40.0], [37.53, 39.47], [37.18, 39.32], [37.03, 38.97], [36.68, 38.82], [36.53, 38.47], [36.0, 38.25], [35.75, 38.35], [35.68, 38.32], [35.65, 38.25], [35.75, 38.0], [35.53, 37.47], [35.18, 37.32], [35.03, 36.97], [34.5, 36.75], [34.25, 36.85], [34.0, 36.75], [33.75, 36.85], [33.5, 36.75], [33.25, 36.85], [33.0, 36.75], [32.75, 36.85], [32.5, 36.75], [31.97, 36.97], [31.82, 37.32], [31.75, 37.35], [31.5, 37.25], [30.97, 37.47], [30.82, 37.82], [30.75, 37.85], [30.5, 37.75], [30.25, 37.85], [30.0, 37.75], [29.47, 37.97], [29.32, 38.32], [28.97, 38.47], [28.82, 38.82], [28.47, 38.97]]]]}, "2024-05-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.47, 39.47], [26.25, 40.0], [26.47, 40.53], [27.0, 40.75], [27.25, 40.65], [27.5, 40.75], [27.75, 40.65], [28.0, 40.75], [28.25, 40.65], [28.32, 40.68], [28.47, 41.03], [28.82, 41.18], [28.97, 41.53], [29.5, 41.75], [29.75, 41.65], [30.0, 41.75], [30.25, 41.65], [30.5, 41.75], [30.75, 41.65], [31.0, 41.75], [31.25, 41.65], [31.32, 41.68], [31.47, 42.03], [32.0, 42.25], [32.25, 42.15], [32.32, 42.18], [32.47, 42.53], [33.0, 42.75], [33.25, 42.65], [33.5, 42.75], [33.75, 42.65], [34.0, 42.75], [34.25, 42.65], [34.5, 42.75], [34.75, 42.65], [35.0, 42.75], [35.53, 42.53], [35.68, 42.18], [36.03, 42.03], [36.18, 41.68], [36.25, 41.65], [36.5, 41.75], [36.75, 41.65], [37.0, 41.75], [37.53, 41.53], [37.68, 41.18], [37.75, 41.15], [38.0, 41.25], [38.25, 41.15], [38.5, 41.25], [39.03, 41.03], [39.25, 40.5], [39.03, 39.97], [38.5, 39.75], [38.25, 39.85], [38.18, 39.82], [38.03, 39.47], [37.68, 39.32], [37.53, 38.97], [37.0, 38.75], [36.75, 38.85], [36.68, 38.82], [36.53, 38.47], [36.0, 38.25], [35.75, 38.35], [35.68, 38.32], [35.65, 38.25], [35.75, 38.0], [35.53, 37.47], [35.18, 37.32], [35.03, 36.97], [34.5, 36.75], [34.25, 36.85], [34.0, 36.75], [33.75, 36.85], [33.5, 36.75], [33.25, 36.85], [33.0, 36.75], [32.75, 36.85], [32.5, 36.75], [31.97, 36.97], [31.82, 37.32], [31.75, 37.35], [31.5, 37.25], [30.97, 37.47], [30.82, 37.82], [30.75, 37.85], [30.5, 37.75], [30.25, 37.85], [30.0, 37.75], [29.47, 37.97], [29.32, 38.32], [28.97, 38.47], [28.82, 38.82], [28.5, 38.96], [28.0, 38.75], [27.75, 38.85], [27.5, 38.75], [26.97, 38.97], [26.82, 39.32], [26.47, 39.47]], [[34.38, 41.3], [34.25, 41.35], [34.18, 41.32], [34.15, 41.25], [34.2, 41.13], [34.32, 41.18], [34.38, 41.3]]]]}, "2024-05-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.47, 39.47], [26.25, 40.0], [26.47, 40.53], [27.0, 40.75], [27.25, 40.65], [27.5, 40.75], [27.75, 40.65], [28.0, 40.75], [28.25, 40.65], [28.32, 40.68], [28.47, 41.03], [28.82, 41.18], [28.97, 41.53], [29.5, 41.75], [29.75, 41.65], [30.0, 41.75], [30.25, 41.65], [30.5, 41.75], [30.75, 41.65], [31.0, 41.75], [31.25, 41.65], [31.32, 41.68], [31.47, 42.03], [32.0, 42.25], [32.25, 42.15], [32.32, 42.18], [32.47, 42.53], [33.0, 42.75], [33.25, 42.65], [33.5, 42.75], [33.75, 42.65], [34.0, 42.75], [34.25, 42.65], [34.5, 42.75], [34.75, 42.65], [35.0, 42.75], [35.53, 42.53], [35.68, 42.18], [36.03, 42.03], [36.18, 41.68], [36.25, 41.65], [36.5, 41.75], [36.75, 41.65], [37.0, 41.75], [37.25, 41.65], [37.5, 41.75], [37.75, 41.65], [38.0, 41.75], [38.25, 41.65], [38.5, 41.75], [38.75, 41.65], [39.0, 41.75], [39.25, 41.65], [39.5, 41.75], [39.75, 41.65], [40.0, 41.75], [40.53, 41.53], [40.75, 41.0], [40.53, 40.47], [40.0, 40.25], [39.75, 40.35], [39.5, 40.25], [39.25, 40.35], [39.18, 40.32], [39.03, 39.97], [38.5, 39.75], [38.25, 39.85], [38.18, 39.82], [38.03, 39.47], [37.68, 39.32], [37.53, 38.97], [37.0, 38.75], [36.75, 38.85], [36.68, 38.82], [36.53, 38.47], [36.0, 38.25], [35.75, 38.35], [35.68, 38.32], [35.65, 38.25], [35.75, 38.0], [35.53, 37.47], [35.18, 37.32], [35.03, 36.97], [34.5, 36.75], [34.25, 36.85], [34.0, 36.75], [33.75, 36.85], [33.5, 36.75], [33.25, 36.85], [33.0, 36.75], [32.75, 36.85], [32.5, 36.75], [31.97, 36.97], [31.82, 37.32], [31.75, 37.35], [31.5, 37.25], [30.97, 37.47], [30.82, 37.82], [30.75, 37.85], [30.5, 37.75], [30.25, 37.85], [30.0, 37.75], [29.47, 37.97], [29.32, 38.32], [28.97, 38.47], [28.82, 38.82], [28.5, 38.96], [28.0, 38.75], [27.75, 38.85], [27.5, 38.75], [26.97, 38.97], [26.82, 39.32], [26.47, 39.47]], [[34.38, 41.3], [34.25, 41.35], [34.18, 41.32], [34.15, 41.25], [34.2, 41.13], [34.32, 41.18], [34.38, 41.3]]]]}, "2024-05-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.47, 39.47], [26.25, 40.0], [26.47, 40.53], [27.0, 40.75], [27.25, 40.65], [27.5, 40.75], [27.75, 40.65], [28.0, 40.75], [28.25, 40.65], [28.32, 40.68], [28.47, 41.03], [28.82, 41.18], [28.97, 41.53], [29.5, 41.75], [29.75, 41.65], [30.0, 41.75], [30.25, 41.65], [30.5, 41.75], [30.75, 41.65], [31.0, 41.75], [31.25, 41.65], [31.32, 41.68], [31.47, 42.03], [32.0, 42.25], [32.25, 42.15], [32.32, 42.18], [32.47, 42.53], [33.0, 42.75], [33.25, 42.65], [33.5, 42.75], [33.75, 42.65], [34.0, 42.75], [34.25, 42.65], [34.5, 42.75], [34.75, 42.65], [35.0, 42.75], [35.53, 42.53], [35.68, 42.18], [36.03, 42.03], [36.18, 41.68], [36.25, 41.65], [36.5, 41.75], [36.75, 41.65], [37.0, 41.75], [37.25, 41.65], [37.5, 41.75], [37.75, 41.65], [38.0, 41.75], [38.25, 41.65], [38.5, 41.75], [38.75, 41.65], [39.0, 41.75], [39.25, 41.65], [39.5, 41.75], [39.75, 41.65], [40.0, 41.75], [40.53, 41.53], [40.75, 41.0], [40.53, 40.47], [40.0, 40.25], [39.75, 40.35], [39.5, 40.25], [39.25, 40.35], [39.18, 40.32], [39.03, 39.97], [38.5, 39.75], [38.25, 39.85], [38.18, 39.82], [38.03, 39.47], [37.68, 39.32], [37.53, 38.97], [37.0, 38.75], [36.75, 38.85], [36.5, 38.75], [36.25, 38.85], [36.0, 38.75], [35.47, 38.97], [35.3, 39.38], [35.0, 39.25], [34.75, 39.35], [34.5, 39.25], [33.97, 39.47], [33.75, 40.0], [33.53, 39.47], [33.0, 39.25], [32.75, 39.35], [32.5, 39.25], [32.25, 39.35], [32.0, 39.25], [31.47, 39.47], [31.32, 39.82], [31.25, 39.85], [31.18, 39.82], [31.03, 39.47], [30.5, 39.25], [30.25, 39.35], [30.0, 39.25], [29.75, 39.35], [29.5, 39.25], [29.25, 39.35], [29.0, 39.25], [28.75, 39.35], [28.68, 39.32], [28.53, 38.97], [28.0, 38.75], [27.75, 38.85], [27.5, 38.75], [26.97, 38.97], [26.82, 39.32], [26.47, 39.47]], [[33.85, 40.25], [33.8, 40.38], [33.68, 40.32], [33.65, 40.25], [33.75, 40.0], [33.85, 40.25]], [[34.2, 41.13], [34.32, 41.18], [34.38, 41.3], [34.25, 41.35], [34.18, 41.32], [34.15, 41.25], [34.2, 41.13]]]]}, "2024-05-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.25, 40.0], [26.47, 40.53], [27.0, 40.75], [27.25, 40.65], [27.5, 40.75], [27.75, 40.65], [28.0, 40.75], [28.53, 40.53], [28.75, 40.0], [28.53, 39.47], [28.18, 39.32], [28.03, 38.97], [27.5, 38.75], [26.97, 38.97], [26.82, 39.32], [26.47, 39.47], [26.25, 40.0]]], [[[30.0, 41.75], [30.25, 41.65], [30.5, 41.75], [30.75, 41.65], [31.0, 41.75], [31.53, 41.53], [31.75, 41.0], [31.53, 40.47], [31.0, 40.25], [30.75, 40.35], [30.68, 40.32], [30.53, 39.97], [30.0, 39.75], [29.47, 39.97], [29.25, 40.5], [29.35, 40.75], [29.25, 41.0], [29.47, 41.53], [30.0, 41.75]]], [[[32.25, 42.0], [32.47, 42.53], [33.0, 42.75], [33.25, 42.65], [33.5, 42.75], [33.75, 42.65], [34.0, 42.75], [34.25, 42.65], [34.5, 42.75], [34.75, 42.65], [35.0, 42.75], [35.53, 42.53], [35.68, 42.18], [36.03, 42.03], [36.18, 41.68], [36.25, 41.65], [36.5, 41.75], [36.75, 41.65], [37.0, 41.75], [37.25, 41.65], [37.5, 41.75], [37.75, 41.65], [38.0, 41.75], [38.25, 41.65], [38.5, 41.75], [38.75, 41.65], [39.0, 41.75], [39.25, 41.65], [39.5, 41.75], [39.75, 41.65], [40.0, 41.75], [40.53, 41.53], [40.75, 41.0], [40.53, 40.47], [40.0, 40.25], [39.75, 40.35], [39.5, 40.25], [39.25, 40.35], [39.18, 40.32], [39.03, 39.97], [38.5, 39.75], [38.25, 39.85], [38.18, 39.82], [38.03, 39.47], [37.5, 39.25], [37.25, 39.35], [37.0, 39.25], [36.75, 39.35], [36.5, 39.25], [35.97, 39.47], [35.82, 39.82], [35.75, 39.85], [35.5, 39.75], [35.25, 39.85], [35.0, 39.75], [34.47, 39.97], [34.25, 40.5], [34.35, 40.75], [34.25, 41.0], [34.38, 41.3], [34.25, 41.35], [34.0, 41.25], [33.75, 41.35], [33.5, 41.25], [33.25, 41.35], [33.0, 41.25], [32.47, 41.47], [32.25, 42.0]]]]}, "2024-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.75, 41.5], [34.97, 42.03], [35.5, 42.25], [36.03, 42.03], [36.18, 41.68], [36.25, 41.65], [36.5, 41.75], [36.75, 41.65], [37.0, 41.75], [37.25, 41.65], [37.5, 41.75], [37.75, 41.65], [38.0, 41.75], [38.5, 41.54], [39.0, 41.75], [39.25, 41.65], [39.5, 41.75], [40.03, 41.53], [40.25, 41.0], [40.03, 40.47], [39.5, 40.25], [39.25, 40.35], [39.18, 40.32], [39.03, 39.97], [38.5, 39.75], [38.25, 39.85], [38.0, 39.75], [37.47, 39.97], [37.32, 40.32], [37.25, 40.35], [37.0, 40.25], [36.75, 40.35], [36.5, 40.25], [36.25, 40.35], [36.0, 40.25], [35.75, 40.35], [35.5, 40.25], [34.97, 40.47], [34.75, 41.0], [34.85, 41.25], [34.75, 41.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.37263426164185}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.222685844604697}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [10.405211053534913, 10.351178592107829, 10.058428243610251, 8.960117047924143, 10.912167803854913, 10.914208314565087, 10.65634090568534]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.946565593602884, 7.365838820816464, 5.126275940748201, 2.9942836314826877, 6.501164816858363, 5.22659456295753, 6.5397612988168135]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.258944688940607, -4.82892343677386, -5.185469227284217, -6.5147353824122, -4.175955391662719, -4.220496929665476, -3.7616020685430325]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.587067247600089, -6.21391998546693, -7.357256680918397, -8.37263426164185, -5.3236719976164295, -5.633691966981132, -4.420072518561938]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4408332845953198, -1.5876586781291258, -1.7470021047958686, -2.148883931103389, -1.411407304953964, -1.5168300714864438, -1.3540256194372204]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.59817132619853, -2.0607635864630365, -2.3947894242748093, -2.6897653636429593, -1.6856864507289164, -1.884983862177174, -1.47710195459999]}}