{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:57:34.535883", "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-Feb-03_to_2024-Feb-06_244.5_73.0"}, "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": 2024020000975}, "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": "February 03 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 06 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": 60635.665648090704}, "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": 73.0}, "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": 244.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "244.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 242.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 250.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 71.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 73.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-118.18, 72.68], [-118.03, 73.03], [-117.5, 73.25], [-117.25, 73.15], [-117.0, 73.25], [-116.75, 73.15], [-116.68, 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[-115.75, 70.35], [-116.0, 70.25], [-116.25, 70.35], [-116.5, 70.25], [-117.03, 70.47], [-117.18, 70.82], [-117.25, 70.85], [-117.5, 70.75], [-118.03, 70.97], [-118.18, 71.32], [-118.53, 71.47], [-118.75, 72.0], [-118.53, 72.53], [-118.18, 72.68]]]]}}, "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": {"2024-02-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-118.53, 71.47], [-118.75, 72.0], [-118.53, 72.53], [-118.18, 72.68], [-118.03, 73.03], [-117.5, 73.25], [-117.25, 73.15], [-117.0, 73.25], [-116.75, 73.15], [-116.5, 73.25], [-116.25, 73.15], [-116.18, 73.18], [-116.03, 73.53], [-115.5, 73.75], [-115.25, 73.65], [-115.0, 73.75], [-114.47, 73.53], [-114.32, 73.18], [-114.25, 73.15], [-114.0, 73.25], [-113.75, 73.15], [-113.5, 73.25], [-113.25, 73.15], 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