{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:53:40.673378", "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-22_to_2024-Nov-24_281.0_25.5"}, "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": 2024110000442}, "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 22 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 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": 198594.7846283546}, "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": ["Bahamas", "Cuba", "United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Caribbean", "E.North-America"]}, "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", "Gulf of Mexico", "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": 25.5}, "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": 281.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "281.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 277.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 283.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 28.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-82.75, 27.5], [-82.53, 28.03], [-82.0, 28.25], [-81.75, 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24.5], [-82.03, 25.03], [-81.68, 25.18], [-81.65, 25.25], [-81.75, 25.5], [-81.65, 25.75], [-81.75, 26.0], [-81.65, 26.25], [-81.68, 26.32], [-82.03, 26.47], [-82.18, 26.82], [-82.53, 26.97], [-82.75, 27.5]], [[-79.85, 27.25], [-79.8, 27.12], [-79.68, 27.18], [-79.65, 27.25], [-79.75, 27.5], [-79.85, 27.25]], [[-80.68, 24.32], [-80.75, 24.35], [-80.82, 24.32], [-80.93, 24.07], [-80.68, 24.18], [-80.65, 24.25], [-80.68, 24.32]]]]}, "2024-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-82.75, 27.5], [-82.53, 28.03], [-82.0, 28.25], [-81.75, 28.15], [-81.62, 28.2], [-81.75, 28.5], [-81.53, 29.03], [-81.0, 29.25], [-80.47, 29.03], [-80.32, 28.68], [-79.97, 28.53], [-79.75, 28.0], [-79.85, 27.75], [-79.75, 27.5], [-79.53, 28.03], [-79.0, 28.25], [-78.47, 28.03], [-78.32, 27.68], [-78.25, 27.65], [-78.0, 27.75], [-77.75, 27.65], [-77.5, 27.75], [-76.97, 27.53], [-76.82, 27.18], [-76.47, 27.03], [-76.25, 26.5], [-76.35, 26.25], [-76.25, 26.0], [-76.47, 25.47], [-76.82, 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20.368492667327985]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.143263753255212, 11.900249735514365, 12.4621406555176]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.8678172471207564, -3.413803505961612, -2.9857446458297767]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.487841326647413, -7.176927855014696, -6.578573204609654]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7839100431166521, -2.1419039899752006, -1.830304556100053]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.2910302705203507, -2.740141203923487, -2.262834256619132]}}