{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:00:42.881051", "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": "2024-Aug-16_to_2024-Aug-19_229.5_66.0"}, "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": 2024080002090}, "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": "August 16 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 19 2024"}, "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": 71235.49104822308}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": []}, "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": 66.0}, "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": 229.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "229.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 223.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 231.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 65.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 68.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-136.62, 66.7], [-136.75, 67.0], [-136.65, 67.25], [-136.75, 67.5], [-136.53, 68.03], [-136.0, 68.25], [-135.75, 68.15], [-135.5, 68.25], [-135.25, 68.15], [-135.0, 68.25], [-134.75, 68.15], [-134.68, 68.18], [-134.53, 68.53], [-134.0, 68.75], [-133.75, 68.65], [-133.5, 68.75], [-133.25, 68.65], [-133.0, 68.75], [-132.75, 68.65], [-132.5, 68.75], [-131.97, 68.53], [-131.82, 68.18], [-131.47, 68.03], [-131.32, 67.68], [-130.97, 67.53], [-130.82, 67.18], [-130.75, 67.15], [-130.5, 67.25], [-130.25, 67.15], [-130.0, 67.25], [-129.47, 67.03], [-129.32, 66.68], [-129.25, 66.65], [-129.0, 66.75], [-128.47, 66.53], [-128.25, 66.0], [-128.47, 65.47], [-128.82, 65.32], [-128.97, 64.97], [-129.5, 64.75], [-129.75, 64.85], [-130.0, 64.75], [-130.25, 64.85], [-130.5, 64.75], [-130.75, 64.85], [-131.0, 64.75], [-131.53, 64.97], [-131.68, 65.32], [-131.75, 65.35], [-132.0, 65.25], [-132.25, 65.35], [-132.5, 65.25], [-132.75, 65.35], [-133.0, 65.25], [-133.25, 65.35], [-133.5, 65.25], [-133.75, 65.35], [-134.0, 65.25], [-134.25, 65.35], [-134.32, 65.32], [-134.47, 64.97], [-135.0, 64.75], [-135.25, 64.85], [-135.5, 64.75], [-135.75, 64.85], [-136.0, 64.75], [-136.53, 64.97], [-136.68, 65.32], [-137.03, 65.47], [-137.25, 66.0], [-137.03, 66.53], [-136.62, 66.7]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.W.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-08-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-136.75, 67.5], [-136.53, 68.03], [-136.0, 68.25], [-135.75, 68.15], [-135.5, 68.25], [-135.25, 68.15], [-135.0, 68.25], [-134.75, 68.15], [-134.68, 68.18], [-134.53, 68.53], [-134.0, 68.75], [-133.75, 68.65], [-133.5, 68.75], [-133.25, 68.65], [-133.0, 68.75], [-132.75, 68.65], [-132.5, 68.75], [-131.97, 68.53], [-131.82, 68.18], [-131.47, 68.03], [-131.32, 67.68], [-130.97, 67.53], [-130.8, 67.13], [-130.5, 67.25], [-130.25, 67.15], [-130.0, 67.25], [-129.47, 67.03], [-129.32, 66.68], [-129.25, 66.65], 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65.47]]]]}, "2024-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-137.03, 65.47], [-137.25, 66.0], [-137.03, 66.53], [-136.62, 66.7], [-136.75, 67.0], [-136.65, 67.25], [-136.75, 67.5], [-136.53, 68.03], [-136.0, 68.25], [-135.75, 68.15], [-135.5, 68.25], [-135.25, 68.15], [-135.0, 68.25], [-134.75, 68.15], [-134.68, 68.18], [-134.53, 68.53], [-134.0, 68.75], [-133.75, 68.65], [-133.5, 68.75], [-133.25, 68.65], [-133.0, 68.75], [-132.75, 68.65], [-132.5, 68.75], [-131.97, 68.53], [-131.82, 68.18], [-131.47, 68.03], [-131.32, 67.68], [-130.97, 67.53], [-130.82, 67.18], [-130.75, 67.15], [-130.5, 67.25], [-130.25, 67.15], [-130.0, 67.25], [-129.47, 67.03], [-129.32, 66.68], [-129.25, 66.65], [-129.0, 66.75], [-128.47, 66.53], [-128.25, 66.0], [-128.47, 65.47], [-128.82, 65.32], [-128.97, 64.97], [-129.5, 64.75], [-129.75, 64.85], [-130.0, 64.75], [-130.25, 64.85], [-130.5, 64.75], [-130.75, 64.85], [-131.0, 64.75], [-131.53, 64.97], [-131.68, 65.32], [-131.75, 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"evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.230663609229282, 17.224192715257857, 17.053345438860447, 20.656075961062413]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.2172848147805, 20.754585980637273, 18.80141247940594, 23.52978531176086]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.422316793388351, 5.957801253966123, 6.230179447970346, 10.286184224028126]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.920993830217924, 6.9141843773909955, 7.4733537654350926, 11.59474802252629]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4399304127533625, 1.5507546115341002, 1.6081363532089465, 2.6135660097296305]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8013921572516214, 1.8458958780312673, 1.9590064433462941, 3.0275116551115993]}}