{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:01.885177", "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": "2010-Jan-25_to_2010-Jan-27_290.5_47.5"}, "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": 2010010002477}, "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 25 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 27 2010"}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 89393.78662415512}, "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": ["Canada", "United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.North-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": ["Gulf of St. Lawrence"]}, "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": 47.5}, "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": 290.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "290.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 285.25}, "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": 44.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 48.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.03, 44.97], [-75.25, 45.5], [-75.03, 46.03], [-74.5, 46.25], [-74.25, 46.15], [-74.18, 46.18], [-74.03, 46.53], [-73.5, 46.75], [-73.25, 46.65], [-73.18, 46.68], [-73.03, 47.03], [-72.5, 47.25], [-72.25, 47.15], [-72.18, 47.18], [-72.03, 47.53], [-71.68, 47.68], [-71.53, 48.03], [-71.18, 48.18], [-71.03, 48.53], [-70.5, 48.75], [-70.25, 48.65], [-70.0, 48.75], [-69.75, 48.65], [-69.68, 48.68], [-69.53, 49.03], [-69.0, 49.25], [-68.47, 49.03], [-68.25, 48.5], [-68.35, 48.25], [-68.25, 48.0], [-68.46, 47.5], [-68.25, 47.0], [-68.35, 46.75], [-68.25, 46.5], [-68.35, 46.25], [-68.25, 46.0], [-68.47, 45.47], [-68.82, 45.32], [-68.97, 44.97], [-69.32, 44.82], [-69.47, 44.47], [-70.0, 44.25], [-70.25, 44.35], [-70.5, 44.25], [-71.03, 44.47], [-71.25, 45.0], [-71.15, 45.25], [-71.18, 45.32], [-71.25, 45.35], [-71.5, 45.25], [-72.0, 45.46], [-72.32, 45.32], [-72.47, 44.97], [-72.82, 44.82], [-72.97, 44.47], [-73.5, 44.25], [-74.03, 44.47], [-74.18, 44.82], [-74.25, 44.85], [-74.5, 44.75], [-75.03, 44.97]]]]}, "2010-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.03, 44.97], [-75.25, 45.5], [-75.03, 46.03], [-74.5, 46.25], [-74.25, 46.15], [-74.18, 46.18], [-74.03, 46.53], [-73.5, 46.75], [-73.25, 46.65], [-73.18, 46.68], [-73.03, 47.03], [-72.5, 47.25], [-72.25, 47.15], [-72.18, 47.18], [-72.03, 47.53], [-71.68, 47.68], [-71.53, 48.03], [-71.18, 48.18], [-71.03, 48.53], [-70.5, 48.75], [-70.25, 48.65], [-70.0, 48.75], [-69.75, 48.65], [-69.68, 48.68], [-69.53, 49.03], [-69.0, 49.25], [-68.47, 49.03], [-68.25, 48.5], [-68.35, 48.25], [-68.25, 48.0], [-68.46, 47.5], [-68.25, 47.0], [-68.35, 46.75], [-68.25, 46.5], [-68.35, 46.25], [-68.25, 46.0], [-68.47, 45.47], [-68.82, 45.32], [-68.97, 44.97], [-69.32, 44.82], [-69.47, 44.47], [-70.0, 44.25], [-70.25, 44.35], [-70.5, 44.25], [-71.03, 44.47], [-71.25, 45.0], [-71.15, 45.25], [-71.18, 45.32], [-71.25, 45.35], [-71.5, 45.25], [-72.0, 45.46], [-72.32, 45.32], [-72.47, 44.97], [-72.82, 44.82], [-72.97, 44.47], [-73.5, 44.25], [-74.03, 44.47], [-74.18, 44.82], [-74.25, 44.85], [-74.5, 44.75], [-75.03, 44.97]]]]}, "2010-01-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.03, 44.97], [-75.25, 45.5], [-75.03, 46.03], [-74.5, 46.25], [-74.25, 46.15], [-74.18, 46.18], [-74.03, 46.53], [-73.5, 46.75], [-73.25, 46.65], [-73.18, 46.68], [-73.03, 47.03], [-72.5, 47.25], [-72.25, 47.15], [-72.18, 47.18], [-72.03, 47.53], [-71.68, 47.68], [-71.53, 48.03], [-71.18, 48.18], [-71.03, 48.53], [-70.5, 48.75], [-70.25, 48.65], [-70.0, 48.75], [-69.75, 48.65], [-69.68, 48.68], [-69.53, 49.03], [-69.0, 49.25], [-68.47, 49.03], [-68.25, 48.5], [-68.35, 48.25], [-68.25, 48.0], [-68.46, 47.5], [-68.25, 47.0], [-68.35, 46.75], [-68.25, 46.5], [-68.35, 46.25], [-68.25, 46.0], [-68.47, 45.47], [-68.82, 45.32], [-68.97, 44.97], [-69.32, 44.82], [-69.47, 44.47], [-70.0, 44.25], [-70.25, 44.35], [-70.5, 44.25], [-71.03, 44.47], [-71.25, 45.0], [-71.15, 45.25], [-71.18, 45.32], [-71.25, 45.35], [-71.5, 45.25], [-72.0, 45.46], [-72.32, 45.32], [-72.47, 44.97], [-72.82, 44.82], [-72.97, 44.47], [-73.5, 44.25], [-74.03, 44.47], [-74.18, 44.82], [-74.25, 44.85], [-74.5, 44.75], [-75.03, 44.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 17.75320120633893}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 11.796587020175687}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-0.24807582147809626, 2.1394046460904406, -1.6301668586033315]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [5.227964079790297, 3.2145214860654505, 0.39397754041385724]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [11.770660070998067, 13.767142454523437, 9.851958535005547]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [15.127352541830305, 17.75320120633893, 11.512394594624311]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6825196162930658, 2.05197478077288, 1.490812774285369]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.013774391374046, 2.5439726103183475, 1.766469819213317]}}