{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:33:50.576444", "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": "2023-Jan-15_to_2023-Jan-17_284.0_20.5"}, "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": 2023010000719}, "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": "January 15 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 17 2023"}, "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": 66237.49213514935}, "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": ["Cuba"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Caribbean"]}, "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": []}, "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": 20.5}, "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": 284.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "284.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 278.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 285.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 19.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-01-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-82.03, 21.97], [-82.25, 22.5], [-82.03, 23.03], [-81.5, 23.25], [-81.25, 23.15], [-81.0, 23.25], [-80.75, 23.15], [-80.5, 23.25], [-80.25, 23.15], [-80.0, 23.25], [-79.75, 23.15], [-79.5, 23.25], [-78.97, 23.03], [-78.82, 22.68], [-78.75, 22.65], [-78.5, 22.75], [-77.97, 22.53], [-77.82, 22.18], [-77.75, 22.15], [-77.5, 22.25], [-76.97, 22.03], [-76.82, 21.68], [-76.75, 21.65], [-76.5, 21.75], [-75.97, 21.53], [-75.82, 21.18], [-75.75, 21.15], [-75.5, 21.25], [-74.97, 21.03], [-74.82, 20.68], [-74.47, 20.53], [-74.25, 20.0], [-74.47, 19.47], [-75.0, 19.25], [-75.25, 19.35], [-75.5, 19.25], [-75.75, 19.35], [-76.0, 19.25], [-76.25, 19.35], [-76.5, 19.25], [-76.75, 19.35], [-77.0, 19.25], [-77.53, 19.47], [-77.75, 20.0], [-77.62, 20.3], [-78.03, 20.47], [-78.18, 20.82], [-78.25, 20.85], [-78.5, 20.75], [-79.03, 20.97], [-79.18, 21.32], [-79.25, 21.35], [-79.5, 21.25], [-79.75, 21.35], [-80.0, 21.25], [-80.53, 21.47], [-80.68, 21.82], [-80.75, 21.85], [-81.0, 21.75], [-81.25, 21.85], [-81.5, 21.75], [-82.03, 21.97]]]]}, "2023-01-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-82.03, 21.97], [-82.25, 22.5], [-82.03, 23.03], [-81.5, 23.25], [-81.25, 23.15], [-81.0, 23.25], [-80.75, 23.15], [-80.5, 23.25], [-80.25, 23.15], [-80.0, 23.25], [-79.75, 23.15], [-79.5, 23.25], [-78.97, 23.03], [-78.82, 22.68], [-78.75, 22.65], [-78.5, 22.75], [-77.97, 22.53], [-77.82, 22.18], [-77.75, 22.15], [-77.5, 22.25], [-76.97, 22.03], [-76.82, 21.68], [-76.75, 21.65], [-76.5, 21.75], [-75.97, 21.53], [-75.82, 21.18], [-75.75, 21.15], [-75.5, 21.25], [-74.97, 21.03], [-74.82, 20.68], [-74.47, 20.53], [-74.25, 20.0], [-74.47, 19.47], [-75.0, 19.25], [-75.25, 19.35], [-75.5, 19.25], [-75.75, 19.35], [-76.0, 19.25], [-76.25, 19.35], [-76.5, 19.25], [-76.75, 19.35], [-77.0, 19.25], [-77.53, 19.47], [-77.75, 20.0], [-77.62, 20.3], [-78.03, 20.47], [-78.18, 20.82], [-78.25, 20.85], [-78.5, 20.75], [-79.03, 20.97], [-79.18, 21.32], [-79.25, 21.35], [-79.5, 21.25], [-79.75, 21.35], [-80.0, 21.25], [-80.53, 21.47], [-80.68, 21.82], [-80.75, 21.85], [-81.0, 21.75], [-81.25, 21.85], [-81.5, 21.75], [-82.03, 21.97]]]]}, "2023-01-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-82.03, 21.97], [-82.25, 22.5], [-82.03, 23.03], [-81.5, 23.25], [-81.25, 23.15], [-81.0, 23.25], [-80.75, 23.15], [-80.5, 23.25], [-80.25, 23.15], [-80.0, 23.25], [-79.75, 23.15], [-79.5, 23.25], [-78.97, 23.03], [-78.82, 22.68], [-78.75, 22.65], [-78.5, 22.75], [-77.97, 22.53], [-77.82, 22.18], [-77.75, 22.15], [-77.5, 22.25], [-76.97, 22.03], [-76.82, 21.68], [-76.75, 21.65], [-76.5, 21.75], [-75.97, 21.53], [-75.82, 21.18], [-75.75, 21.15], [-75.5, 21.25], [-74.97, 21.03], [-74.82, 20.68], [-74.47, 20.53], [-74.25, 20.0], [-74.47, 19.47], [-75.0, 19.25], [-75.25, 19.35], [-75.5, 19.25], [-75.75, 19.35], [-76.0, 19.25], [-76.25, 19.35], [-76.5, 19.25], [-76.75, 19.35], [-77.0, 19.25], [-77.53, 19.47], [-77.75, 20.0], [-77.62, 20.3], [-78.03, 20.47], [-78.18, 20.82], [-78.25, 20.85], [-78.5, 20.75], [-79.03, 20.97], [-79.18, 21.32], [-79.25, 21.35], [-79.5, 21.25], [-79.75, 21.35], [-80.0, 21.25], [-80.53, 21.47], [-80.68, 21.82], [-80.75, 21.85], [-81.0, 21.75], [-81.25, 21.85], [-81.5, 21.75], [-82.03, 21.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.581216955915863}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.8203507452314938}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.934664636259185, 17.865357553836134, 20.114092975567303]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.194296958926941, 13.771121075017334, 16.600587583447407]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.8616400157232507, -4.922116256519486, -2.6772959634517455]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.165766206552348, -6.581216955915863, -4.219891799390439]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.403030676533658, -3.0418195353104416, -1.6326066567262867]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-3.031578509179853, -3.349845682332598, -1.8754368879203387]}}