{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:18:51.969786", "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": "2020-Feb-28_to_2020-Mar-01_280.0_23.5"}, "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": 2020020000816}, "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": "February 28 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 01 2020"}, "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": 53769.45240046041}, "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": ["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": 23.5}, "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": 280.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "280.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 278.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 282.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 22.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 25.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-02-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-81.53, 22.47], [-81.75, 23.0], [-81.53, 23.53], [-81.0, 23.75], [-80.75, 23.65], [-80.68, 23.68], [-80.53, 24.03], [-80.18, 24.18], [-80.03, 24.53], [-79.68, 24.68], [-79.65, 24.75], [-79.75, 25.0], [-79.53, 25.53], [-79.0, 25.75], [-78.75, 25.65], [-78.5, 25.75], [-77.97, 25.53], [-77.75, 25.0], [-77.85, 24.75], [-77.82, 24.68], [-77.47, 24.53], [-77.25, 24.0], [-77.35, 23.75], [-77.25, 23.5], [-77.47, 22.97], [-77.82, 22.82], [-77.97, 22.47], [-78.5, 22.25], [-78.75, 22.35], [-79.0, 22.25], [-79.25, 22.35], [-79.5, 22.25], [-79.75, 22.35], [-80.0, 22.25], [-80.25, 22.35], [-80.5, 22.25], [-80.75, 22.35], [-81.0, 22.25], [-81.53, 22.47]]]]}, "2020-02-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-81.53, 22.47], [-81.75, 23.0], [-81.53, 23.53], [-81.0, 23.75], [-80.75, 23.65], [-80.68, 23.68], [-80.53, 24.03], [-80.18, 24.18], [-80.03, 24.53], [-79.68, 24.68], [-79.65, 24.75], [-79.75, 25.0], [-79.53, 25.53], [-79.0, 25.75], [-78.75, 25.65], [-78.5, 25.75], [-77.97, 25.53], [-77.75, 25.0], [-77.85, 24.75], [-77.82, 24.68], [-77.47, 24.53], [-77.25, 24.0], [-77.35, 23.75], [-77.25, 23.5], [-77.47, 22.97], [-77.82, 22.82], [-77.97, 22.47], [-78.5, 22.25], [-78.75, 22.35], [-79.0, 22.25], [-79.25, 22.35], [-79.5, 22.25], [-79.75, 22.35], [-80.0, 22.25], [-80.25, 22.35], [-80.5, 22.25], [-80.75, 22.35], [-81.0, 22.25], [-81.53, 22.47]]]]}, "2020-03-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-81.53, 22.47], [-81.75, 23.0], [-81.53, 23.53], [-81.0, 23.75], [-80.75, 23.65], [-80.68, 23.68], [-80.53, 24.03], [-80.18, 24.18], [-80.03, 24.53], [-79.68, 24.68], [-79.65, 24.75], [-79.75, 25.0], [-79.53, 25.53], [-79.0, 25.75], [-78.75, 25.65], [-78.5, 25.75], [-77.97, 25.53], [-77.75, 25.0], [-77.85, 24.75], [-77.82, 24.68], [-77.47, 24.53], [-77.25, 24.0], [-77.35, 23.75], [-77.25, 23.5], [-77.47, 22.97], [-77.82, 22.82], [-77.97, 22.47], [-78.5, 22.25], [-78.75, 22.35], [-79.0, 22.25], [-79.25, 22.35], [-79.5, 22.25], [-79.75, 22.35], [-80.0, 22.25], [-80.25, 22.35], [-80.5, 22.25], [-80.75, 22.35], [-81.0, 22.25], [-81.53, 22.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.649975698972355}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.8878185232439155}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.450840016203927, 19.78783279142766, 20.403267605468898]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.80851553416511, 18.970354818988255, 19.867919732121038]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.6642477263043367, -3.3142966518682866, -2.684911191559123]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.649975698972355, -3.5771002008000323, -3.207953525270227]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6867924935583918, -2.091862137348462, -1.6818953749782197]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.188886568054173, -2.402412875513801, -2.0674863205488894]}}