{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:23:47.721635", "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": "2022-Oct-03_to_2022-Oct-05_265.5_49.0"}, "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": 2022100001536}, "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 03 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 05 2022"}, "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": 88701.28391635865}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America", "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": 49.0}, "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": 265.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "265.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 265.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 268.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 46.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 50.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-95.75, 48.0], [-95.65, 48.25], [-95.75, 48.5], [-95.65, 48.75], [-95.75, 49.0], [-95.65, 49.25], [-95.75, 49.5], [-95.65, 49.75], [-95.75, 50.0], [-95.53, 50.53], [-95.0, 50.75], [-94.47, 50.53], [-94.32, 50.18], [-94.25, 50.15], [-94.0, 50.25], [-93.75, 50.15], [-93.5, 50.25], [-93.25, 50.15], [-93.0, 50.25], [-92.75, 50.15], [-92.5, 50.25], [-92.25, 50.15], [-92.0, 50.25], [-91.75, 50.15], [-91.5, 50.25], [-90.97, 50.03], [-90.75, 49.5], [-90.97, 48.97], [-91.5, 48.75], [-91.75, 48.85], [-91.82, 48.82], [-91.85, 48.75], [-91.75, 48.5], [-91.85, 48.25], [-91.75, 48.0], [-91.97, 47.47], [-92.32, 47.32], [-92.35, 47.25], [-92.25, 47.0], [-92.35, 46.75], [-92.25, 46.5], [-92.47, 45.97], [-93.0, 45.75], [-93.25, 45.85], [-93.32, 45.82], [-93.47, 45.47], [-94.0, 45.25], [-94.25, 45.35], [-94.5, 45.25], [-95.03, 45.47], [-95.25, 46.0], [-95.15, 46.25], [-95.18, 46.32], [-95.53, 46.47], [-95.75, 47.0], [-95.65, 47.25], [-95.75, 47.5], [-95.65, 47.75], [-95.75, 48.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.North-America", "C.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-10-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-95.75, 47.5], [-95.64999999999998, 47.75], [-95.75, 48.0], [-95.64999999999998, 48.25], [-95.75, 48.5], [-95.64999999999998, 48.75], [-95.75, 49.0], [-95.64999999999998, 49.25], [-95.75, 49.5], [-95.64999999999998, 49.75], [-95.75, 50.0], [-95.52999999999997, 50.53], [-95.0, 50.75], [-94.47000000000003, 50.53], [-94.32, 50.18], [-94.25, 50.15], [-94.0, 50.25], [-93.75, 50.15], [-93.5, 50.25], [-93.25, 50.15], [-93.0, 50.25], [-92.75, 50.15], [-92.5, 50.25], [-92.25, 50.15], [-92.0, 50.25], [-91.75, 50.15], [-91.5, 50.25], [-90.97000000000003, 50.03], [-90.75, 49.5], [-90.97000000000003, 48.97], [-91.5, 48.75], [-91.75, 48.85], [-91.82, 48.82], [-91.85000000000002, 48.75], [-91.75, 48.5], [-91.85000000000002, 48.25], [-91.75, 48.0], [-91.97000000000003, 47.47], [-92.32, 47.32], [-92.35000000000002, 47.25], [-92.25, 47.0], [-92.35000000000002, 46.75], [-92.25, 46.5], [-92.47000000000003, 45.97], [-93.0, 45.75], [-93.25, 45.85], [-93.32, 45.82], [-93.47000000000003, 45.47], [-94.0, 45.25], [-94.25, 45.35], [-94.5, 45.25], [-95.02999999999997, 45.47], [-95.25, 46.0], [-95.14999999999998, 46.25], [-95.18, 46.32], [-95.52999999999997, 46.47], [-95.75, 47.0], [-95.64999999999998, 47.25], [-95.75, 47.5]]]]}, "2022-10-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-95.75, 47.5], [-95.64999999999998, 47.75], [-95.75, 48.0], [-95.64999999999998, 48.25], [-95.75, 48.5], [-95.64999999999998, 48.75], [-95.75, 49.0], [-95.64999999999998, 49.25], [-95.75, 49.5], [-95.64999999999998, 49.75], [-95.75, 50.0], [-95.52999999999997, 50.53], [-95.0, 50.75], [-94.47000000000003, 50.53], [-94.32, 50.18], [-94.25, 50.15], [-94.0, 50.25], [-93.75, 50.15], [-93.5, 50.25], [-93.25, 50.15], [-93.0, 50.25], [-92.75, 50.15], [-92.5, 50.25], 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46.47], [-95.75, 47.0], [-95.64999999999998, 47.25], [-95.75, 47.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.671091798648149}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.790435955329079}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.107211721397675, 16.08304902308697, 15.488827496814906]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.869779643267634, 17.92055476907575, 17.282573310826763]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.1143199939834, 7.351964955216448, 6.905022916787385]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.143886764430533, 8.671091798648149, 7.891438171599248]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5177330535133744, 1.7363685270600235, 1.5605094957071717]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6391023722183324, 1.9617037599484053, 1.7091412408481166]}}