{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-05-20 10:52:31.384492", "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": "2026-Apr-09_to_2026-Apr-13_234.5_49.5"}, "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": 2026040001618}, "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": "April 09 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 13 2026"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 50816.65153891564}, "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": ["N.W.North-America", "W.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": ["The Coastal Waters of Southeast Alaska and British Columbia"]}, "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": 49.5}, "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": 234.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "234.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 233.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 236.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 48.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 53.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-04-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-126.53, 48.97], [-126.75, 49.5], [-126.53, 50.03], [-126.0, 50.25], [-125.75, 50.15], [-125.5, 50.25], [-124.97, 50.03], [-124.75, 49.5], [-124.97, 48.97], [-125.5, 48.75], [-125.75, 48.85], [-126.0, 48.75], [-126.53, 48.97]]]]}, "2026-04-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-127.03, 50.53], [-126.5, 50.75], [-126.25, 50.65], [-126.0, 50.75], [-125.75, 50.65], [-125.5, 50.75], [-125.25, 50.65], [-125.0, 50.75], [-124.5, 50.54], [-124.0, 50.75], [-123.47, 50.53], [-123.25, 50.0], [-123.35, 49.75], [-123.25, 49.5], [-123.47, 48.97], [-123.82, 48.82], [-123.97, 48.47], [-124.5, 48.25], [-125.03, 48.47], [-125.2, 48.88], [-125.5, 48.75], [-125.75, 48.85], [-126.0, 48.75], [-126.53, 48.97], [-126.68, 49.32], [-127.03, 49.47], [-127.25, 50.0], [-127.03, 50.53]]], [[[-125.03, 53.53], [-124.5, 53.75], [-123.97, 53.53], [-123.75, 53.0], [-123.87, 52.7], [-123.47, 52.53], [-123.25, 52.0], [-123.47, 51.47], [-124.0, 51.25], [-124.53, 51.47], [-124.75, 52.0], [-124.62, 52.3], [-125.03, 52.47], [-125.25, 53.0], [-125.03, 53.53]]]]}, "2026-04-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-127.25, 50.0], [-127.03, 50.53], [-126.5, 50.75], [-126.25, 50.65], [-126.0, 50.75], [-125.75, 50.65], [-125.68, 50.68], [-125.53, 51.03], [-125.18, 51.18], [-125.04, 51.5], [-125.25, 52.0], [-125.15, 52.25], [-125.18, 52.32], [-125.25, 52.35], [-125.5, 52.25], [-126.03, 52.47], [-126.25, 53.0], [-126.03, 53.53], [-125.5, 53.75], [-125.25, 53.65], [-125.0, 53.75], [-124.75, 53.65], [-124.5, 53.75], [-123.97, 53.53], [-123.82, 53.18], [-123.47, 53.03], [-123.25, 52.5], [-123.35, 52.25], [-123.32, 52.18], [-122.97, 52.03], [-122.75, 51.5], [-122.96, 51.0], [-122.75, 50.5], [-122.97, 49.97], [-123.32, 49.82], [-123.35, 49.75], [-123.25, 49.5], [-123.47, 48.97], [-123.82, 48.82], [-123.97, 48.47], [-124.5, 48.25], [-125.03, 48.47], [-125.18, 48.82], [-125.25, 48.85], [-125.5, 48.75], [-125.75, 48.85], [-126.0, 48.75], [-126.53, 48.97], [-126.68, 49.32], [-127.03, 49.47], [-127.25, 50.0]]]]}, 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