{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:57:41.097692", "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": "2025-Nov-11_to_2025-Nov-14_270.0_17.0"}, "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": 2025110000328}, "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 11 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 14 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 168094.47162394127}, "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": ["Belize", "Guatemala", "Mexico"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Central-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"]}, "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": 17.0}, "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": 270.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "270.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 266.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 272.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 15.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 20.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-11-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-93.75, 17.5], [-93.53, 18.03], [-93.0, 18.25], [-92.75, 18.15], [-92.5, 18.25], [-92.25, 18.15], [-92.18, 18.18], [-92.15, 18.25], [-92.25, 18.5], [-92.03, 19.03], [-91.68, 19.18], [-91.53, 19.53], [-91.18, 19.68], [-91.03, 20.03], [-90.68, 20.18], [-90.65, 20.25], [-90.75, 20.5], [-90.53, 21.03], [-90.0, 21.25], [-89.47, 21.03], [-89.25, 20.5], [-89.35, 20.25], [-89.25, 20.0], [-89.35, 19.75], [-89.25, 19.5], [-89.35, 19.25], [-89.32, 19.18], [-88.97, 19.03], [-88.82, 18.68], [-88.75, 18.65], [-88.5, 18.75], [-87.97, 18.53], [-87.75, 18.0], [-87.85, 17.75], [-87.82, 17.68], [-87.47, 17.53], [-87.25, 17.0], [-87.47, 16.47], [-87.82, 16.32], [-87.85, 16.25], [-87.75, 16.0], [-87.97, 15.47], [-88.5, 15.25], [-88.75, 15.35], [-88.82, 15.32], [-88.97, 14.97], [-89.5, 14.75], [-90.03, 14.97], [-90.18, 15.32], [-90.25, 15.35], [-90.5, 15.25], [-90.75, 15.35], [-91.0, 15.25], [-91.5, 15.46], [-92.0, 15.25], [-92.53, 15.47], [-92.75, 16.0], [-92.65, 16.25], [-92.68, 16.32], [-93.03, 16.47], [-93.18, 16.82], [-93.53, 16.97], [-93.75, 17.5]]]]}, 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15.46], [-92.0, 15.25], [-92.53, 15.47], [-92.75, 16.0], [-92.65, 16.25], [-92.68, 16.32], [-93.03, 16.47], [-93.18, 16.82], [-93.53, 16.97], [-93.75, 17.5]]]]}, "2025-11-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-93.75, 17.5], [-93.53, 18.03], [-93.0, 18.25], [-92.75, 18.15], [-92.5, 18.25], [-92.25, 18.15], [-92.18, 18.18], [-92.15, 18.25], [-92.25, 18.5], [-92.03, 19.03], [-91.68, 19.18], [-91.53, 19.53], [-91.18, 19.68], [-91.03, 20.03], [-90.68, 20.18], [-90.65, 20.25], [-90.75, 20.5], [-90.53, 21.03], [-90.0, 21.25], [-89.47, 21.03], [-89.25, 20.5], [-89.35, 20.25], [-89.25, 20.0], [-89.35, 19.75], [-89.25, 19.5], [-89.35, 19.25], [-89.32, 19.18], [-88.97, 19.03], [-88.82, 18.68], [-88.75, 18.65], [-88.5, 18.75], [-87.97, 18.53], [-87.75, 18.0], [-87.85, 17.75], [-87.82, 17.68], [-87.47, 17.53], [-87.25, 17.0], [-87.35, 16.75], [-87.25, 16.5], [-87.35, 16.25], [-87.25, 16.0], [-87.47, 15.47], [-88.0, 15.25], [-88.25, 15.35], [-88.5, 15.25], [-88.75, 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[-91.03, 15.47], [-91.25, 16.0], [-91.15, 16.25], [-91.25, 16.5], [-91.15, 16.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.3177726666834815}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.9524072185458516}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.100036089348066, 20.55928194369494, 20.947427145082315, 21.487652435302778]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.15092239379885, 12.402392323811853, 13.172329203287802, 18.82517522176107]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.771367973821379, -3.322750817278838, -2.886669496078648, -2.656192159053703]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.6409584550556815, -4.272976116395171, -4.3177726666834815, -4.007031223082322]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.811717765185856, -2.2012590176841207, -1.9094303537816966, -1.8893069081095688]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.3904799694716883, -2.9938195473219755, -2.7101700387912238, -2.707112088224102]}}