{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:05:59.511078", "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": "2025-Jun-08_to_2025-Jun-11_258.5_70.0"}, "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": 2025060001762}, "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": "June 08 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 11 2025"}, "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": 58379.03733055078}, "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": 70.0}, "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": 258.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "258.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 245.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 259.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 69.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 71.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-105.75, 71.15], [-105.5, 71.25], [-105.25, 71.15], [-105.18, 71.18], [-105.03, 71.53], [-104.5, 71.75], [-103.97, 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"description": "List of all IPCC regions affected", "value": ["N.W.North-America", "N.E.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-06-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-115.25, 71.5], [-115.03, 72.03], [-114.5, 72.25], [-114.25, 72.15], [-114.0, 72.25], [-113.75, 72.15], [-113.5, 72.25], [-113.25, 72.15], [-113.0, 72.25], [-112.75, 72.15], [-112.5, 72.25], [-112.25, 72.15], [-112.0, 72.25], [-111.75, 72.15], [-111.5, 72.25], [-111.25, 72.15], [-111.0, 72.25], [-110.75, 72.15], [-110.5, 72.25], [-109.97, 72.03], [-109.82, 71.68], [-109.75, 71.65], [-109.5, 71.75], [-109.25, 71.65], [-109.0, 71.75], [-108.75, 71.65], [-108.5, 71.75], [-108.25, 71.65], [-108.0, 71.75], [-107.47, 71.53], [-107.32, 71.18], [-107.25, 71.15], [-107.0, 71.25], [-106.75, 71.15], [-106.5, 71.25], [-106.25, 71.15], [-106.0, 71.25], [-105.75, 71.15], [-105.5, 71.25], 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