{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:08:34.685441", "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-Oct-23_to_2025-Oct-26_246.0_52.0"}, "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": 2025100002244}, "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": "October 23 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 26 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": 74452.87386256058}, "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": 52.0}, "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": 246.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "246.0\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": 248.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 51.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 56.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-111.82, 51.68], [-111.47, 51.53], [-111.25, 51.0], [-111.47, 50.47], [-112.0, 50.25], [-112.53, 50.47], [-112.68, 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[-114.25, 54.15], [-114.0, 54.25], [-113.75, 54.15], [-113.5, 54.25], [-112.97, 54.03], [-112.82, 53.68], [-112.47, 53.53], [-112.25, 53.0], [-112.35, 52.75], [-112.25, 52.5], [-112.35, 52.25], [-112.32, 52.18], [-111.97, 52.03], [-111.82, 51.68]]]]}}, "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": {"2025-10-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-118.53, 55.47], [-118.75, 56.0], [-118.53, 56.53], [-118.0, 56.75], [-117.75, 56.65], [-117.5, 56.75], [-116.97, 56.53], [-116.82, 56.18], [-116.75, 56.15], [-116.5, 56.25], [-115.97, 56.03], [-115.75, 55.5], [-115.96000000000001, 55.0], [-115.82, 54.68], [-115.47, 54.53], [-115.32, 54.18], [-115.25, 54.15], [-115.0, 54.25], [-114.75, 54.15], [-114.5, 54.25], [-114.25, 54.15], [-114.0, 54.25], [-113.75, 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6.826462129519541]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.615643461001241, 8.745563387537004, 10.424604844624298, 6.855893761587879]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2883653445725727, 1.470219130916791, 1.3897609975253986, 1.2330778872491028]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4837196517831504, 1.77670702475097, 1.9451126007503907, 1.2359305405528445]}}