{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:26.398004", "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": "2012-May-03_to_2012-May-07_302.0_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": 2012050001859}, "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 03 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 07 2012"}, "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": "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": 54451.13933072465}, "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"]}, "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", "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": 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": 302.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "302.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 299.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 304.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 46.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 49.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-05-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-59.53, 46.47], [-59.75, 47.0], [-59.53, 47.53], [-59.0, 47.75], [-58.75, 47.65], [-58.68, 47.68], [-58.53, 48.03], [-58.0, 48.25], [-57.47, 48.03], [-57.32, 47.68], [-57.25, 47.65], [-57.0, 47.75], [-56.47, 47.53], [-56.25, 47.0], [-56.47, 46.47], [-56.82, 46.32], [-56.97, 45.97], [-57.5, 45.75], [-57.75, 45.85], [-58.0, 45.75], [-58.53, 45.97], [-58.68, 46.32], [-58.75, 46.35], [-59.0, 46.25], [-59.53, 46.47]]]]}, "2012-05-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-60.65, 48.25], [-60.75, 48.5], [-60.53, 49.03], [-60.0, 49.25], [-59.47, 49.03], [-59.25, 48.5], [-59.35, 48.25], [-59.32, 48.18], [-59.0, 48.04], [-58.5, 48.25], [-58.25, 48.15], [-58.0, 48.25], [-57.47, 48.03], [-57.32, 47.68], [-57.25, 47.65], [-57.18, 47.68], [-57.03, 48.03], [-56.5, 48.25], [-56.25, 48.15], [-56.0, 48.25], [-55.47, 48.03], [-55.25, 47.5], [-55.35, 47.25], [-55.25, 47.0], [-55.47, 46.47], [-56.0, 46.25], [-56.25, 46.35], [-56.32, 46.32], [-56.47, 45.97], [-57.0, 45.75], [-57.25, 45.85], [-57.5, 45.75], [-57.75, 45.85], [-58.0, 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6.349724405629388, 8.594280751806252, 9.168251038075084, 8.562232872682046]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.0493825567289505, 2.1373361328879668, 3.1390526313634837, 2.947194287367871, 2.587658090470346]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.511360124791736, 2.8266185043292467, 4.452569041589243, 4.136204706176784, 3.349291783094145]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6101041296625076, 1.619493665032357, 2.186950074322024, 1.9770084083080286, 1.6651744901090135]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9567941999133434, 2.216501024512193, 2.6036431135821005, 2.523939064212222, 2.0398412785928115]}}