{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:56:11.226439", "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": "2023-Nov-01_to_2023-Nov-06_235.5_50.5"}, "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": 2023110000863}, "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 01 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 06 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 70339.03860029929}, "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": 50.5}, "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": 235.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "235.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 233.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 239.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 49.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 52.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-126.03, 49.97], [-126.18, 50.32], [-126.53, 50.47], [-126.68, 50.82], [-127.03, 50.97], [-127.25, 51.5], [-127.03, 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{"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-11-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-122.5, 49.75], [-123.03, 49.97], [-123.25, 50.5], [-123.03, 51.03], [-122.5, 51.25], [-121.97, 51.03], [-121.75, 50.5], [-121.97, 49.97], [-122.5, 49.75]]], [[[-126.75, 52.0], [-126.53, 52.53], [-126.0, 52.75], [-125.47, 52.53], [-125.25, 52.0], [-125.37, 51.7], [-124.97, 51.53], [-124.75, 51.0], [-124.97, 50.47], [-125.5, 50.25], [-126.03, 50.47], [-126.25, 51.0], [-126.12, 51.3], [-126.53, 51.47], [-126.75, 52.0]]]]}, "2023-11-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-127.03, 50.97], [-127.25, 51.5], [-127.03, 52.03], [-126.68, 52.18], [-126.53, 52.53], [-126.0, 52.75], [-125.47, 52.53], [-125.32, 52.18], [-125.25, 52.15], [-125.0, 52.25], [-124.75, 52.15], [-124.5, 52.25], [-124.25, 52.15], [-124.0, 52.25], [-123.47, 52.03], [-123.32, 51.68], [-123.25, 51.65], 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1.4293888832216801]}}