{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:25:35.460198", "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": "2021-May-20_to_2021-May-24_288.0_21.0"}, "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": 2021050000853}, "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 20 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 24 2021"}, "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": 103971.30554771182}, "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", "Turks and Caicos Islands"]}, "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": ["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": 21.0}, "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": 288.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "288.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 284.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 291.25}, "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": 21.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-05-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.53, 20.47], [-75.75, 21.0], [-75.53, 21.53], [-75.0, 21.75], [-74.47, 21.53], [-74.25, 21.0], [-74.47, 20.47], [-75.0, 20.25], [-75.53, 20.47]]], [[[-73.75, 21.5], [-73.53, 22.03], [-73.0, 22.25], [-72.75, 22.15], [-72.5, 22.25], [-71.97, 22.03], [-71.75, 21.5], [-71.97, 20.97], [-72.5, 20.75], [-72.75, 20.85], [-73.0, 20.75], [-73.53, 20.97], [-73.75, 21.5]]]]}, "2021-05-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.25, 21.0], [-76.03, 21.53], [-75.5, 21.75], [-75.25, 21.65], [-75.0, 21.75], [-74.75, 21.65], [-74.5, 21.75], [-74.25, 21.65], [-74.0, 21.75], [-73.75, 21.65], [-73.68, 21.68], [-73.53, 22.03], [-73.0, 22.25], [-72.75, 22.15], [-72.5, 22.25], [-72.25, 22.15], [-72.0, 22.25], [-71.75, 22.15], [-71.5, 22.25], [-71.25, 22.15], [-71.0, 22.25], [-70.75, 22.15], [-70.5, 22.25], [-70.25, 22.15], [-70.0, 22.25], [-69.75, 22.15], [-69.5, 22.25], [-68.97, 22.03], [-68.82, 21.68], [-68.47, 21.53], [-68.25, 21.0], [-68.47, 20.47], [-69.0, 20.25], [-69.25, 20.35], [-69.32, 20.32], [-69.47, 19.97], [-70.0, 19.75], [-70.25, 19.85], [-70.5, 19.75], [-70.75, 19.85], [-71.0, 19.75], [-71.25, 19.85], [-71.5, 19.75], [-71.75, 19.85], [-71.82, 19.82], [-71.97, 19.47], [-72.5, 19.25], [-72.75, 19.35], [-73.0, 19.25], [-73.53, 19.47], [-73.68, 19.82], [-73.75, 19.85], [-73.82, 19.82], [-73.97, 19.47], [-74.5, 19.25], [-75.03, 19.47], [-75.18, 19.82], [-75.53, 19.97], [-75.68, 20.32], [-76.03, 20.47], [-76.25, 21.0]]]]}, "2021-05-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.25, 21.0], [-76.03, 21.53], [-75.5, 21.75], [-75.25, 21.65], [-75.0, 21.75], [-74.75, 21.65], [-74.5, 21.75], [-74.25, 21.65], [-74.0, 21.75], [-73.75, 21.65], [-73.68, 21.68], [-73.53, 22.03], [-73.0, 22.25], [-72.75, 22.15], [-72.5, 22.25], [-72.25, 22.15], [-72.0, 22.25], [-71.75, 22.15], [-71.5, 22.25], [-71.25, 22.15], [-71.0, 22.25], [-70.75, 22.15], [-70.5, 22.25], [-70.25, 22.15], [-70.0, 22.25], [-69.75, 22.15], [-69.5, 22.25], [-68.97, 22.03], [-68.82, 21.68], [-68.47, 21.53], [-68.25, 21.0], [-68.47, 20.47], [-69.0, 20.25], [-69.25, 20.35], [-69.32, 20.32], [-69.47, 19.97], [-70.0, 19.75], [-70.25, 19.85], [-70.5, 19.75], [-70.75, 19.85], [-71.0, 19.75], [-71.25, 19.85], [-71.5, 19.75], [-71.75, 19.85], [-71.82, 19.82], [-71.97, 19.47], [-72.5, 19.25], [-72.75, 19.35], [-73.0, 19.25], [-73.53, 19.47], [-73.68, 19.82], [-73.75, 19.85], [-73.82, 19.82], [-73.97, 19.47], [-74.5, 19.25], [-75.03, 19.47], [-75.18, 19.82], [-75.53, 19.97], [-75.68, 20.32], [-76.03, 20.47], [-76.25, 21.0]]]]}, "2021-05-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.25, 21.0], [-76.03, 21.53], [-75.5, 21.75], [-75.25, 21.65], [-75.0, 21.75], [-74.75, 21.65], [-74.5, 21.75], [-74.25, 21.65], [-74.0, 21.75], [-73.75, 21.65], [-73.68, 21.68], [-73.53, 22.03], [-73.0, 22.25], [-72.75, 22.15], [-72.5, 22.25], [-72.25, 22.15], [-72.0, 22.25], [-71.75, 22.15], [-71.5, 22.25], [-71.25, 22.15], [-71.0, 22.25], [-70.75, 22.15], [-70.5, 22.25], [-70.25, 22.15], [-70.0, 22.25], [-69.75, 22.15], [-69.5, 22.25], [-68.97, 22.03], [-68.82, 21.68], [-68.47, 21.53], [-68.25, 21.0], [-68.47, 20.47], [-69.0, 20.25], [-69.25, 20.35], [-69.32, 20.32], [-69.47, 19.97], [-70.0, 19.75], [-70.25, 19.85], [-70.5, 19.75], [-70.75, 19.85], [-71.0, 19.75], [-71.25, 19.85], [-71.5, 19.75], [-71.75, 19.85], [-71.82, 19.82], [-71.97, 19.47], [-72.5, 19.25], [-72.75, 19.35], [-73.0, 19.25], [-73.53, 19.47], [-73.68, 19.82], [-73.75, 19.85], [-73.82, 19.82], [-73.97, 19.47], [-74.5, 19.25], [-75.03, 19.47], [-75.18, 19.82], [-75.53, 19.97], [-75.68, 20.32], [-76.03, 20.47], [-76.25, 21.0]]]]}, "2021-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-72.5, 22.25], [-72.25, 22.15], [-72.0, 22.25], [-71.75, 22.15], [-71.5, 22.25], [-71.25, 22.15], [-71.0, 22.25], [-70.47, 22.03], [-70.25, 21.5], [-70.47, 20.97], [-71.0, 20.75], [-71.25, 20.85], [-71.32, 20.82], [-71.47, 20.47], [-72.0, 20.25], [-72.25, 20.35], [-72.5, 20.25], [-72.75, 20.35], [-73.0, 20.25], [-73.53, 20.47], [-73.75, 21.0], [-73.53, 21.53], [-73.18, 21.68], [-73.03, 22.03], [-72.5, 22.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.096512355502284}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.3715320707908714}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.288991326731605, 24.908039333108775, 24.513632927774665, 24.955452983126975, 25.314218826339072]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.140912552907764, 23.176916171403036, 23.15878080134297, 23.364047512022807, 25.094851922755367]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.0006398523931164, -1.2635619754630294, -1.6853939066742893, -1.2706271392454387, -0.990553718052029]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.039078746706025, -1.6171745010950076, -2.096512355502284, -1.5398440139815648, -1.1145319233834812]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5060521841168801, -1.9434019000319986, -2.669009845763279, -2.030819189789086, -1.6379174159208598]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5604032802702243, -2.533880663954567, -3.4940446474788662, -2.446895914679764, -1.7673646687799303]}}