{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:59:03.429057", "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-May-18_to_2024-May-21_282.5_57.5"}, "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": 2024050001795}, "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 18 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 21 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": 80653.22919857793}, "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": 57.5}, "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": 282.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "282.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 277.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 283.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 57.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 60.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-83.03, 60.53], [-82.5, 60.75], [-82.25, 60.65], [-82.0, 60.75], [-81.75, 60.65], [-81.5, 60.75], [-81.25, 60.65], [-81.0, 60.75], [-80.75, 60.65], [-80.5, 60.75], [-79.97, 60.53], [-79.8, 60.12], [-79.5, 60.25], [-79.25, 60.15], [-79.0, 60.25], [-78.47, 60.03], [-78.32, 59.68], [-77.97, 59.53], [-77.75, 59.0], [-77.85, 58.75], [-77.82, 58.68], [-77.75, 58.65], [-77.5, 58.75], [-76.97, 58.53], [-76.82, 58.18], [-76.47, 58.03], [-76.25, 57.5], [-76.35, 57.25], [-76.25, 57.0], [-76.47, 56.47], [-77.0, 56.25], [-77.25, 56.35], [-77.5, 56.25], [-78.03, 56.47], [-78.18, 56.82], [-78.25, 56.85], [-78.5, 56.75], [-78.75, 56.85], [-79.0, 56.75], [-79.25, 56.85], [-79.5, 56.75], [-79.75, 56.85], [-80.0, 56.75], [-80.25, 56.85], [-80.5, 56.75], [-80.75, 56.85], [-81.0, 56.75], [-81.53, 56.97], [-81.68, 57.32], [-81.75, 57.35], [-82.0, 57.25], [-82.53, 57.47], [-82.75, 58.0], [-82.65, 58.25], [-82.68, 58.32], [-83.03, 58.47], [-83.25, 59.0], [-83.15, 59.25], [-83.25, 59.5], [-83.15, 59.75], [-83.25, 60.0], [-83.03, 60.53]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.E.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-05-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.25, 59.5], [-83.14999999999998, 59.75], [-83.25, 60.0], [-83.02999999999997, 60.53], [-82.5, 60.75], [-82.25, 60.65], [-82.0, 60.75], [-81.75, 60.65], [-81.5, 60.75], [-81.25, 60.65], [-81.0, 60.75], [-80.75, 60.65], [-80.5, 60.75], [-79.97000000000003, 60.53], [-79.80000000000001, 60.12], [-79.5, 60.25], [-79.25, 60.15], [-79.0, 60.25], [-78.47000000000003, 60.03], [-78.32, 59.68], [-77.97000000000003, 59.53], [-77.75, 59.0], [-77.85000000000002, 58.75], [-77.82, 58.68], [-77.75, 58.65], [-77.5, 58.75], [-76.97000000000003, 58.53], [-76.82, 58.18], [-76.47000000000003, 58.03], [-76.25, 57.5], [-76.35000000000002, 57.25], [-76.25, 57.0], [-76.47000000000003, 56.47], [-77.0, 56.25], [-77.25, 56.35], [-77.5, 56.25], [-78.02999999999997, 56.47], [-78.18, 56.82], [-78.25, 56.85], [-78.5, 56.75], [-78.75, 56.85], [-79.0, 56.75], [-79.25, 56.85], [-79.5, 56.75], [-79.75, 56.85], [-80.0, 56.75], [-80.25, 56.85], [-80.5, 56.75], [-80.75, 56.85], [-81.0, 56.75], [-81.52999999999997, 56.97], [-81.68, 57.32], [-81.75, 57.35], [-82.0, 57.25], [-82.52999999999997, 57.47], [-82.75, 58.0], [-82.64999999999998, 58.25], [-82.68, 58.32], [-83.02999999999997, 58.47], [-83.25, 59.0], [-83.14999999999998, 59.25], [-83.25, 59.5]]]]}, "2024-05-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.25, 59.5], [-83.14999999999998, 59.75], [-83.25, 60.0], [-83.02999999999997, 60.53], [-82.5, 60.75], [-82.25, 60.65], [-82.0, 60.75], [-81.75, 60.65], [-81.5, 60.75], [-81.25, 60.65], [-81.0, 60.75], [-80.75, 60.65], [-80.5, 60.75], [-79.97000000000003, 60.53], [-79.80000000000001, 60.12], [-79.5, 60.25], [-79.25, 60.15], [-79.0, 60.25], [-78.47000000000003, 60.03], [-78.32, 59.68], [-77.97000000000003, 59.53], [-77.75, 59.0], [-77.85000000000002, 58.75], [-77.82, 58.68], [-77.75, 58.65], [-77.5, 58.75], [-76.97000000000003, 58.53], [-76.82, 58.18], [-76.47000000000003, 58.03], [-76.25, 57.5], [-76.35000000000002, 57.25], [-76.25, 57.0], [-76.47000000000003, 56.47], [-77.0, 56.25], [-77.25, 56.35], [-77.5, 56.25], [-78.02999999999997, 56.47], [-78.18, 56.82], [-78.25, 56.85], [-78.5, 56.75], [-78.75, 56.85], [-79.0, 56.75], [-79.25, 56.85], [-79.5, 56.75], [-79.75, 56.85], [-80.0, 56.75], [-80.25, 56.85], [-80.5, 56.75], [-80.75, 56.85], [-81.0, 56.75], [-81.52999999999997, 56.97], [-81.68, 57.32], [-81.75, 57.35], [-82.0, 57.25], [-82.52999999999997, 57.47], [-82.75, 58.0], [-82.64999999999998, 58.25], [-82.68, 58.32], [-83.02999999999997, 58.47], [-83.25, 59.0], [-83.14999999999998, 59.25], [-83.25, 59.5]]]]}, "2024-05-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.25, 59.5], [-83.14999999999998, 59.75], [-83.25, 60.0], [-83.02999999999997, 60.53], [-82.5, 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t2m.", "value": [4.928539475767025, 5.920606043350006, 3.8281771425220086, 2.459170402493214]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.806435735955075, 3.9926785741209687, 3.6095026791218787, 3.055863376692912]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.321419927463239, 6.026562155867509, 4.53633037781708, 3.055863376692912]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.561170075625771, 1.6990209805297423, 1.614158798680609, 1.3485171056382466]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.110215262292082, 2.396395194356124, 2.017792778619861, 1.3485171056382466]}}