{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:59:35.014447", "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": "2026-May-21_to_2026-May-25_299.0_14.0"}, "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": 2026050000470}, "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 21 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 25 2026"}, "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": 59984.279347780874}, "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": ["Saint Lucia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Caribbean", "N.Atlantic-Ocean"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North America"]}, "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": ["Caribbean Sea", "North Atlantic Ocean"]}, "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": 14.0}, "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": 299.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "299.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 298.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 305.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 13.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 14.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-05-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-56.53, 15.03], [-56.0, 15.25], [-55.75, 15.15], [-55.5, 15.25], [-55.25, 15.15], [-55.0, 15.25], [-54.47, 15.03], [-54.32, 14.68], [-53.97, 14.53], [-53.75, 14.0], [-53.97, 13.47], [-54.5, 13.25], [-54.75, 13.35], [-55.0, 13.25], [-55.25, 13.35], [-55.5, 13.25], [-55.75, 13.35], [-56.0, 13.25], [-56.53, 13.47], [-56.75, 14.0], [-56.65, 14.25], [-56.75, 14.5], [-56.53, 15.03]]]]}, "2026-05-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.53, 13.47], [-61.75, 14.0], [-61.53, 14.53], [-61.0, 14.75], [-60.75, 14.65], [-60.5, 14.75], [-60.25, 14.65], [-60.0, 14.75], [-59.75, 14.65], [-59.5, 14.75], [-59.25, 14.65], [-59.0, 14.75], [-58.75, 14.65], [-58.5, 14.75], [-57.97, 14.53], [-57.82, 14.18], [-57.75, 14.15], [-57.68, 14.18], [-57.65, 14.25], [-57.75, 14.5], [-57.53, 15.03], [-57.0, 15.25], [-56.5, 15.04], [-56.0, 15.25], [-55.75, 15.15], [-55.5, 15.25], [-55.25, 15.15], [-55.0, 15.25], [-54.47, 15.03], [-54.32, 14.68], [-53.97, 14.53], [-53.75, 14.0], [-53.97, 13.47], [-54.5, 13.25], [-54.75, 13.35], [-55.0, 13.25], [-55.25, 13.35], [-55.5, 13.25], [-55.75, 13.35], [-56.0, 13.25], [-56.25, 13.35], [-56.32, 13.32], [-56.47, 12.97], [-57.0, 12.75], [-57.25, 12.85], [-57.5, 12.75], [-57.75, 12.85], [-58.0, 12.75], [-58.25, 12.85], [-58.5, 12.75], [-59.03, 12.97], [-59.18, 13.32], [-59.25, 13.35], [-59.5, 13.25], [-59.75, 13.35], [-60.0, 13.25], [-60.25, 13.35], [-60.5, 13.25], [-60.75, 13.35], [-61.0, 13.25], [-61.53, 13.47]]]]}, "2026-05-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.53, 13.47], [-61.75, 14.0], [-61.53, 14.53], [-61.0, 14.75], [-60.75, 14.65], [-60.5, 14.75], [-60.25, 14.65], [-60.0, 14.75], [-59.75, 14.65], [-59.5, 14.75], [-59.25, 14.65], [-59.0, 14.75], [-58.75, 14.65], [-58.5, 14.75], [-57.97, 14.53], [-57.82, 14.18], [-57.75, 14.15], [-57.68, 14.18], [-57.65, 14.25], [-57.75, 14.5], [-57.53, 15.03], [-57.0, 15.25], [-56.5, 15.04], [-56.0, 15.25], [-55.75, 15.15], [-55.5, 15.25], [-55.25, 15.15], [-55.0, 15.25], [-54.47, 15.03], [-54.32, 14.68], [-53.97, 14.53], [-53.75, 14.0], [-53.97, 13.47], [-54.5, 13.25], [-54.75, 13.35], [-55.0, 13.25], [-55.25, 13.35], [-55.5, 13.25], [-55.75, 13.35], [-56.0, 13.25], [-56.25, 13.35], [-56.32, 13.32], [-56.47, 12.97], [-57.0, 12.75], [-57.25, 12.85], [-57.5, 12.75], [-57.75, 12.85], [-58.0, 12.75], [-58.25, 12.85], [-58.5, 12.75], [-59.03, 12.97], [-59.18, 13.32], [-59.25, 13.35], [-59.5, 13.25], [-59.75, 13.35], [-60.0, 13.25], [-60.25, 13.35], [-60.5, 13.25], [-60.75, 13.35], [-61.0, 13.25], [-61.53, 13.47]]]]}, "2026-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.53, 13.47], [-61.75, 14.0], [-61.53, 14.53], [-61.0, 14.75], [-60.75, 14.65], [-60.5, 14.75], [-60.25, 14.65], [-60.0, 14.75], [-59.75, 14.65], [-59.5, 14.75], [-59.25, 14.65], [-59.0, 14.75], [-58.75, 14.65], [-58.5, 14.75], [-57.97, 14.53], [-57.82, 14.18], [-57.75, 14.15], [-57.68, 14.18], [-57.65, 14.25], [-57.75, 14.5], [-57.53, 15.03], [-57.0, 15.25], [-56.47, 15.03], [-56.32, 14.68], [-55.97, 14.53], 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[25.592171332949704, 25.715866088867188, 25.927080535888706, 25.837823975391984, 26.330806986490927]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.340764617919945, 25.29078063964846, 25.697393035888695, 25.72432988484701, 26.330806986490927]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.7888716189159969, -0.903884795442039, -0.702998938256124, -0.9244932181675443, -0.8735650497216056]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-0.9570232854775327, -1.0926041327987832, -1.03628790048964, -1.378962408064126, -0.8735650497216056]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4577312690407709, -1.7099296363287213, -1.3459377900869518, -1.8100403680086765, -1.5303846096610367]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.788443115028182, -1.9902878924690128, -1.8096785526997905, -2.4167895918086426, -1.5303846096610367]}}