{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:43.157960", "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-Oct-20_to_2012-Oct-23_302.5_52.5"}, "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": 2012100002464}, "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": "October 20 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 23 2012"}, "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": 129558.35796912864}, "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", "N.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", "Labrador Sea"]}, "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": 52.5}, "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": 302.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "302.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 298.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 306.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 47.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 53.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-10-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.53, 49.03], [-61.18, 49.18], [-61.03, 49.53], [-60.68, 49.68], [-60.53, 50.03], [-60.0, 50.25], [-59.75, 50.15], [-59.5, 50.25], [-59.25, 50.15], [-59.0, 50.25], [-58.75, 50.15], [-58.68, 50.18], [-58.53, 50.53], [-58.0, 50.75], [-57.47, 50.53], [-57.25, 50.0], [-57.47, 49.47], [-57.82, 49.32], [-57.97, 48.97], [-58.32, 48.82], [-58.35, 48.75], [-58.25, 48.5], [-58.47, 47.97], [-59.0, 47.75], [-59.25, 47.85], [-59.32, 47.82], [-59.47, 47.47], [-59.82, 47.32], [-59.97, 46.97], [-60.5, 46.75], [-61.03, 46.97], [-61.18, 47.32], [-61.53, 47.47], [-61.75, 48.0], [-61.65, 48.25], [-61.75, 48.5], [-61.53, 49.03]]]]}, "2012-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.53, 49.03], [-61.18, 49.18], [-61.03, 49.53], [-60.68, 49.68], [-60.53, 50.03], [-60.0, 50.25], [-59.75, 50.15], [-59.5, 50.25], [-60.03, 50.47], [-60.25, 51.0], [-60.03, 51.53], [-59.62, 51.7], [-59.75, 52.0], [-59.53, 52.53], [-59.0, 52.75], [-58.75, 52.65], [-58.68, 52.68], [-58.53, 53.03], [-58.18, 53.18], [-58.03, 53.53], [-57.68, 53.68], [-57.53, 54.03], [-57.0, 54.25], [-56.75, 54.15], [-56.5, 54.25], [-55.97, 54.03], [-55.75, 53.5], [-55.85, 53.25], [-55.75, 53.0], [-55.85, 52.75], [-55.75, 52.5], [-55.85, 52.25], [-55.82, 52.18], [-55.75, 52.15], [-55.5, 52.25], [-54.97, 52.03], [-54.82, 51.68], [-54.47, 51.53], [-54.32, 51.18], [-53.97, 51.03], [-53.82, 50.68], [-53.47, 50.53], [-53.25, 50.0], [-53.35, 49.75], [-53.25, 49.5], [-53.47, 48.97], [-54.0, 48.75], [-54.25, 48.85], [-54.5, 48.75], [-54.75, 48.85], [-55.0, 48.75], [-55.25, 48.85], [-55.5, 48.75], [-56.03, 48.97], [-56.18, 49.32], [-56.53, 49.47], [-56.68, 49.82], [-57.0, 49.96], [-57.32, 49.82], [-57.47, 49.47], [-57.82, 49.32], [-57.97, 48.97], [-58.32, 48.82], [-58.35, 48.75], [-58.25, 48.5], [-58.47, 47.97], [-59.0, 47.75], [-59.25, 47.85], [-59.32, 47.82], [-59.47, 47.47], [-59.82, 47.32], [-59.97, 46.97], [-60.5, 46.75], [-61.03, 46.97], [-61.18, 47.32], [-61.53, 47.47], [-61.75, 48.0], [-61.65, 48.25], [-61.75, 48.5], [-61.53, 49.03]], [[-59.25, 50.15], [-59.12, 50.2], [-59.18, 50.32], [-59.25, 50.35], [-59.5, 50.25], [-59.25, 50.15]]]]}, "2012-10-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-61.53, 49.03], [-61.18, 49.18], [-61.03, 49.53], [-60.68, 49.68], [-60.53, 50.03], [-60.0, 50.25], [-59.75, 50.15], [-59.5, 50.25], [-60.03, 50.47], [-60.25, 51.0], [-60.03, 51.53], [-59.62, 51.7], [-59.75, 52.0], [-59.53, 52.53], [-59.0, 52.75], [-58.75, 52.65], [-58.68, 52.68], [-58.53, 53.03], [-58.18, 53.18], [-58.03, 53.53], [-57.68, 53.68], [-57.53, 54.03], [-57.0, 54.25], [-56.75, 54.15], [-56.5, 54.25], [-55.97, 54.03], [-55.75, 53.5], [-55.85, 53.25], [-55.75, 53.0], [-55.85, 52.75], [-55.75, 52.5], [-55.85, 52.25], [-55.82, 52.18], [-55.75, 52.15], [-55.5, 52.25], [-54.97, 52.03], [-54.82, 51.68], [-54.47, 51.53], [-54.32, 51.18], [-53.97, 51.03], [-53.82, 50.68], [-53.47, 50.53], [-53.25, 50.0], [-53.35, 49.75], [-53.25, 49.5], [-53.47, 48.97], [-54.0, 48.75], [-54.25, 48.85], [-54.5, 48.75], [-54.75, 48.85], 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[-55.82, 52.18], [-55.75, 52.15], [-55.5, 52.25], [-54.97, 52.03], [-54.82, 51.68], [-54.47, 51.53], [-54.32, 51.18], [-53.97, 51.03], [-53.82, 50.68], [-53.47, 50.53], [-53.25, 50.0], [-53.35, 49.75], [-53.25, 49.5], [-53.47, 48.97], [-54.0, 48.75], [-54.25, 48.85], [-54.5, 48.75], [-54.75, 48.85], [-55.0, 48.75], [-55.25, 48.85], [-55.5, 48.75], [-56.03, 48.97], [-56.18, 49.32], [-56.53, 49.47], [-56.68, 49.82], [-57.0, 49.96], [-57.5, 49.75], [-57.75, 49.85], [-58.0, 49.75], [-58.25, 49.85], [-58.5, 49.75], [-59.03, 49.97], [-59.18, 50.32], [-59.25, 50.35], [-59.5, 50.25], [-60.03, 50.47], [-60.25, 51.0], [-60.03, 51.53], [-59.62, 51.7], [-59.75, 52.0], [-59.53, 52.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.854860858874929}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.056574945603027}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [10.41445156641214, 9.569280387391586, 9.501010069895017, 6.994490348049055]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [11.465566264508595, 13.112388866646995, 12.248974959816621, 9.594276485881949]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.8697265253787645, 4.492072840340207, 4.598875613563413, 3.1571700794779587]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.2232411053972783, 6.744557511594564, 7.854860858874929, 4.277476571449711]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5155240211237309, 2.122308988214726, 2.1379788732088456, 1.4192050483882157]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7102149580412525, 2.7321570289545667, 2.795987984808548, 1.741492364950879]}}