{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:59.081368", "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": "2011-Nov-14_to_2011-Nov-17_298.0_46.5"}, "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": 2011110002169}, "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": "November 14 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 17 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 69461.53237155946}, "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"]}, "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": 46.5}, "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": 298.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "298.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 295.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 298.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 45.25}, "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": {"2011-11-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.15, 47.25], [-65.25, 47.5], [-65.15, 47.75], [-65.25, 48.0], [-65.03, 48.53], [-64.5, 48.75], [-64.0, 48.54], [-63.5, 48.75], [-63.25, 48.65], [-63.18, 48.68], [-63.03, 49.03], [-62.5, 49.25], [-62.25, 49.15], [-62.0, 49.25], [-61.75, 49.15], [-61.5, 49.25], [-60.97, 49.03], [-60.75, 48.5], [-60.97, 47.97], [-61.32, 47.82], [-61.35, 47.75], [-61.32, 47.68], [-60.97, 47.53], [-60.75, 47.0], [-60.85, 46.75], [-60.75, 46.5], [-60.97, 45.97], [-61.32, 45.82], [-61.47, 45.47], [-62.0, 45.25], [-62.25, 45.35], [-62.5, 45.25], [-62.75, 45.35], [-63.0, 45.25], [-63.25, 45.35], [-63.32, 45.32], [-63.47, 44.97], [-64.0, 44.75], [-64.25, 44.85], [-64.5, 44.75], [-65.03, 44.97], [-65.25, 45.5], [-65.04, 46.0], [-65.25, 46.5], [-65.15, 46.75], [-65.25, 47.0], [-65.15, 47.25]]]]}, "2011-11-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.15, 47.25], [-65.25, 47.5], [-65.15, 47.75], [-65.25, 48.0], [-65.03, 48.53], [-64.5, 48.75], [-64.0, 48.54], [-63.5, 48.75], [-63.25, 48.65], [-63.18, 48.68], [-63.03, 49.03], [-62.5, 49.25], [-62.25, 49.15], [-62.0, 49.25], [-61.75, 49.15], [-61.5, 49.25], [-60.97, 49.03], [-60.75, 48.5], [-60.97, 47.97], [-61.32, 47.82], [-61.35, 47.75], [-61.32, 47.68], [-60.97, 47.53], [-60.75, 47.0], [-60.85, 46.75], [-60.75, 46.5], [-60.97, 45.97], [-61.32, 45.82], [-61.47, 45.47], [-62.0, 45.25], [-62.25, 45.35], [-62.5, 45.25], [-62.75, 45.35], [-63.0, 45.25], [-63.25, 45.35], [-63.32, 45.32], [-63.47, 44.97], [-64.0, 44.75], [-64.25, 44.85], [-64.5, 44.75], [-65.03, 44.97], [-65.25, 45.5], [-65.04, 46.0], [-65.25, 46.5], [-65.15, 46.75], [-65.25, 47.0], [-65.15, 47.25]]]]}, "2011-11-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.15, 47.25], [-65.25, 47.5], [-65.15, 47.75], [-65.25, 48.0], [-65.03, 48.53], [-64.5, 48.75], [-64.0, 48.54], [-63.5, 48.75], [-63.25, 48.65], [-63.18, 48.68], [-63.03, 49.03], [-62.5, 49.25], [-62.25, 49.15], [-62.0, 49.25], [-61.75, 49.15], [-61.5, 49.25], [-60.97, 49.03], [-60.75, 48.5], [-60.97, 47.97], [-61.32, 47.82], [-61.35, 47.75], [-61.32, 47.68], [-60.97, 47.53], [-60.75, 47.0], [-60.85, 46.75], [-60.75, 46.5], [-60.97, 45.97], [-61.32, 45.82], [-61.47, 45.47], [-62.0, 45.25], [-62.25, 45.35], [-62.5, 45.25], [-62.75, 45.35], [-63.0, 45.25], [-63.25, 45.35], [-63.32, 45.32], [-63.47, 44.97], [-64.0, 44.75], [-64.25, 44.85], [-64.5, 44.75], [-65.03, 44.97], [-65.25, 45.5], [-65.04, 46.0], [-65.25, 46.5], [-65.15, 46.75], [-65.25, 47.0], [-65.15, 47.25]]]]}, "2011-11-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-65.15, 47.25], [-65.25, 47.5], [-65.15, 47.75], [-65.25, 48.0], [-65.03, 48.53], [-64.5, 48.75], [-64.0, 48.54], [-63.5, 48.75], [-63.25, 48.65], [-63.18, 48.68], [-63.03, 49.03], [-62.5, 49.25], [-62.25, 49.15], [-62.0, 49.25], [-61.75, 49.15], [-61.5, 49.25], [-60.97, 49.03], [-60.75, 48.5], [-60.97, 47.97], [-61.32, 47.82], [-61.35, 47.75], [-61.32, 47.68], [-60.97, 47.53], [-60.75, 47.0], [-60.97, 46.47], [-61.32, 46.32], [-61.35, 46.25], [-61.25, 46.0], [-61.47, 45.47], 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"Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.078147336799317, 5.776255848024827, 4.520769433723382, 4.991386636134676]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.789136806190527, 7.891687649687412, 5.67623861161502, 6.185466033758189]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.702315767347887, 1.9377701326879395, 1.5223981711039878, 1.6715631055681357]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.824750136721614, 2.132971314536517, 1.6263440823436035, 1.7700730717946365]}}