{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:50.809394", "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": "2018-Jan-05_to_2018-Jan-07_282.5_20.0"}, "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": 2018010000291}, "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 05 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 07 2018"}, "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": 267984.1381193261}, "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": ["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": 20.0}, "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": 282.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "282.5\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": 289.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 17.25}, "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": {"2018-01-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-81.75, 19.5], [-81.53, 20.03], [-81.18, 20.18], [-81.03, 20.53], [-80.68, 20.68], [-80.65, 20.75], [-80.75, 21.0], [-80.53, 21.53], [-80.0, 21.75], [-79.75, 21.65], [-79.68, 21.68], [-79.53, 22.03], [-79.18, 22.18], [-79.03, 22.53], [-78.5, 22.75], [-77.97, 22.53], [-77.82, 22.18], [-77.75, 22.15], [-77.5, 22.25], [-77.25, 22.15], [-77.0, 22.25], [-76.5, 22.04], [-76.0, 22.25], [-75.75, 22.15], [-75.5, 22.25], [-75.25, 22.15], [-75.18, 22.18], [-75.03, 22.53], [-74.68, 22.68], [-74.53, 23.03], [-74.18, 23.18], [-74.03, 23.53], [-73.5, 23.75], [-73.25, 23.65], [-73.18, 23.68], [-73.03, 24.03], [-72.68, 24.18], [-72.53, 24.53], [-72.18, 24.68], [-72.03, 25.03], [-71.68, 25.18], [-71.53, 25.53], [-71.0, 25.75], [-70.47, 25.53], [-70.25, 25.0], [-70.35, 24.75], [-70.25, 24.5], [-70.35, 24.25], [-70.25, 24.0], [-70.35, 23.75], [-70.25, 23.5], [-70.35, 23.25], [-70.25, 23.0], [-70.46, 22.5], [-70.25, 22.0], [-70.47, 21.47], [-71.0, 21.25], [-71.25, 21.35], [-71.5, 21.25], [-71.75, 21.35], [-72.0, 21.25], [-72.25, 21.35], [-72.5, 21.25], [-72.75, 21.35], [-72.82, 21.32], [-72.97, 20.97], [-73.32, 20.82], [-73.47, 20.47], [-73.82, 20.32], [-73.85, 20.25], [-73.75, 20.0], [-73.97, 19.47], [-74.5, 19.25], [-74.8, 19.38], [-74.97, 18.97], [-75.5, 18.75], [-75.75, 18.85], [-75.82, 18.82], [-75.97, 18.47], [-76.5, 18.25], [-77.03, 18.47], [-77.25, 19.0], [-77.15, 19.25], [-77.2, 19.38], [-77.5, 19.25], [-78.0, 19.46], [-78.32, 19.32], [-78.35, 19.25], [-78.25, 19.0], [-78.47, 18.47], [-78.87, 18.3], [-78.75, 18.0], [-78.85, 17.75], [-78.75, 17.5], [-78.97, 16.97], [-79.5, 16.75], [-80.03, 16.97], [-80.18, 17.32], [-80.53, 17.47], [-80.68, 17.82], [-81.03, 17.97], [-81.25, 18.5], [-81.15, 18.75], [-81.18, 18.82], [-81.53, 18.97], [-81.75, 19.5]]]]}, "2018-01-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-81.75, 19.5], [-81.53, 20.03], [-81.18, 20.18], [-81.03, 20.53], [-80.68, 20.68], [-80.65, 20.75], [-80.75, 21.0], [-80.53, 21.53], [-80.0, 21.75], [-79.75, 21.65], [-79.68, 21.68], [-79.53, 22.03], [-79.18, 22.18], [-79.03, 22.53], [-78.5, 22.75], [-77.97, 22.53], [-77.82, 22.18], [-77.75, 22.15], [-77.5, 22.25], [-77.25, 22.15], [-77.0, 22.25], [-76.5, 22.04], [-76.0, 22.25], [-75.75, 22.15], [-75.5, 22.25], [-75.25, 22.15], [-75.18, 22.18], [-75.03, 22.53], [-74.68, 22.68], [-74.53, 23.03], [-74.18, 23.18], [-74.03, 23.53], [-73.5, 23.75], [-73.25, 23.65], [-73.18, 23.68], [-73.03, 24.03], [-72.68, 24.18], [-72.53, 24.53], [-72.18, 24.68], [-72.03, 25.03], [-71.68, 25.18], [-71.53, 25.53], [-71.0, 25.75], [-70.47, 25.53], [-70.25, 25.0], [-70.35, 24.75], [-70.25, 24.5], [-70.35, 24.25], [-70.25, 24.0], [-70.35, 23.75], [-70.25, 23.5], [-70.35, 23.25], [-70.25, 23.0], [-70.46, 22.5], [-70.25, 22.0], [-70.47, 21.47], [-71.0, 21.25], [-71.25, 21.35], [-71.5, 21.25], [-71.75, 21.35], [-72.0, 21.25], [-72.25, 21.35], [-72.5, 21.25], [-72.75, 21.35], [-72.82, 21.32], [-72.97, 20.97], [-73.32, 20.82], [-73.47, 20.47], [-73.82, 20.32], [-73.85, 20.25], [-73.75, 20.0], [-73.97, 19.47], [-74.5, 19.25], [-74.8, 19.38], [-74.97, 18.97], [-75.5, 18.75], [-75.75, 18.85], [-75.82, 18.82], [-75.97, 18.47], [-76.5, 18.25], [-77.03, 18.47], [-77.25, 19.0], [-77.15, 19.25], [-77.2, 19.38], [-77.5, 19.25], [-78.0, 19.46], [-78.32, 19.32], [-78.35, 19.25], [-78.25, 19.0], [-78.47, 18.47], [-78.87, 18.3], [-78.75, 18.0], [-78.85, 17.75], [-78.75, 17.5], [-78.97, 16.97], [-79.5, 16.75], [-80.03, 16.97], [-80.18, 17.32], [-80.53, 17.47], [-80.68, 17.82], [-81.03, 17.97], [-81.25, 18.5], [-81.15, 18.75], [-81.18, 18.82], [-81.53, 18.97], [-81.75, 19.5]]]]}, "2018-01-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-81.75, 19.5], [-81.53, 20.03], [-81.18, 20.18], [-81.03, 20.53], [-80.68, 20.68], [-80.65, 20.75], [-80.75, 21.0], [-80.53, 21.53], [-80.0, 21.75], [-79.75, 21.65], [-79.68, 21.68], [-79.53, 22.03], [-79.18, 22.18], [-79.03, 22.53], [-78.5, 22.75], [-77.97, 22.53], [-77.82, 22.18], [-77.75, 22.15], [-77.5, 22.25], [-77.25, 22.15], [-77.0, 22.25], [-76.5, 22.04], [-76.0, 22.25], [-75.75, 22.15], [-75.5, 22.25], [-75.25, 22.15], [-75.18, 22.18], [-75.03, 22.53], [-74.68, 22.68], [-74.53, 23.03], [-74.18, 23.18], [-74.03, 23.53], [-73.5, 23.75], [-73.25, 23.65], [-73.18, 23.68], [-73.03, 24.03], [-72.68, 24.18], [-72.53, 24.53], [-72.18, 24.68], [-72.03, 25.03], [-71.68, 25.18], [-71.53, 25.53], [-71.0, 25.75], [-70.47, 25.53], [-70.25, 25.0], [-70.35, 24.75], [-70.25, 24.5], [-70.35, 24.25], [-70.25, 24.0], [-70.35, 23.75], [-70.25, 23.5], [-70.35, 23.25], [-70.25, 23.0], [-70.46, 22.5], [-70.25, 22.0], [-70.47, 21.47], [-71.0, 21.25], [-71.25, 21.35], [-71.5, 21.25], [-71.75, 21.35], [-72.0, 21.25], [-72.25, 21.35], [-72.5, 21.25], [-72.75, 21.35], [-72.82, 21.32], [-72.97, 20.97], [-73.32, 20.82], [-73.47, 20.47], [-73.82, 20.32], [-73.85, 20.25], [-73.75, 20.0], [-73.97, 19.47], [-74.5, 19.25], [-74.8, 19.38], [-74.97, 18.97], [-75.5, 18.75], [-75.75, 18.85], [-75.82, 18.82], [-75.97, 18.47], [-76.5, 18.25], [-77.03, 18.47], [-77.25, 19.0], [-77.15, 19.25], [-77.2, 19.38], [-77.5, 19.25], [-78.0, 19.46], [-78.32, 19.32], [-78.35, 19.25], [-78.25, 19.0], [-78.47, 18.47], [-78.87, 18.3], [-78.75, 18.0], [-78.85, 17.75], [-78.75, 17.5], [-78.97, 16.97], [-79.5, 16.75], [-80.03, 16.97], [-80.18, 17.32], [-80.53, 17.47], [-80.68, 17.82], [-81.03, 17.97], [-81.25, 18.5], [-81.15, 18.75], [-81.18, 18.82], [-81.53, 18.97], [-81.75, 19.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.362004985051783}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.2039162962382366}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.201233971715, 22.300369959632974, 22.291581046868657]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.61206457754423, 18.975956520646093, 18.65079106988793]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.3483265234557584, -2.158039584522875, -2.1053827807360763]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.362004985051783, -4.28979079787581, -4.334383869060446]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9603648706128527, -1.7261403051658604, -1.680031230036931]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.4784674234513315, -2.6047998874622422, -2.058221298509222]}}