{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:56:26.860219", "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-Jul-27_to_2025-Jul-30_282.5_45.0"}, "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": 2025070002874}, "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": "July 27 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 30 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": 68034.06769629697}, "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", "United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.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": []}, "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": 45.0}, "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": 282.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "282.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 279.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 284.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 42.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 46.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-81.03, 44.53], [-80.5, 44.75], [-80.25, 44.65], [-80.0, 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"MultiPolygon", "coordinates": [[[[-81.03, 44.53], [-80.5, 44.75], [-80.25, 44.65], [-80.0, 44.75], [-79.75, 44.65], [-79.68, 44.68], [-79.65, 44.75], [-79.75, 45.0], [-79.53, 45.53], [-79.0, 45.75], [-78.75, 45.65], [-78.68, 45.68], [-78.53, 46.03], [-78.0, 46.25], [-77.75, 46.15], [-77.68, 46.18], [-77.65, 46.25], [-77.75, 46.5], [-77.53, 47.03], [-77.0, 47.25], [-76.75, 47.15], [-76.5, 47.25], [-76.25, 47.15], [-76.0, 47.25], [-75.47, 47.03], [-75.25, 46.5], [-75.47, 45.97], [-75.82, 45.82], [-75.85, 45.75], [-75.75, 45.5], [-75.87, 45.2], [-75.47, 45.03], [-75.25, 44.5], [-75.35, 44.25], [-75.25, 44.0], [-75.47, 43.47], [-76.0, 43.25], [-76.53, 43.47], [-76.68, 43.82], [-76.75, 43.85], [-77.0, 43.75], [-77.25, 43.85], [-77.5, 43.75], [-77.75, 43.85], [-77.82, 43.82], [-77.97, 43.47], [-78.5, 43.25], [-78.75, 43.35], [-78.82, 43.32], [-78.97, 42.97], [-79.32, 42.82], [-79.47, 42.47], [-80.0, 42.25], [-80.53, 42.47], [-80.68, 42.82], [-81.03, 42.97], [-81.25, 43.5], [-81.15, 43.75], [-81.25, 44.0], [-81.03, 44.53]]]]}, "2025-07-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-81.03, 44.53], [-80.5, 44.75], [-80.25, 44.65], [-80.0, 44.75], [-79.75, 44.65], [-79.68, 44.68], [-79.65, 44.75], [-79.75, 45.0], [-79.53, 45.53], [-79.0, 45.75], [-78.75, 45.65], [-78.68, 45.68], [-78.53, 46.03], [-78.0, 46.25], [-77.75, 46.15], [-77.68, 46.18], [-77.65, 46.25], [-77.75, 46.5], [-77.53, 47.03], [-77.0, 47.25], [-76.75, 47.15], [-76.5, 47.25], [-76.25, 47.15], [-76.0, 47.25], [-75.47, 47.03], [-75.25, 46.5], [-75.47, 45.97], [-75.82, 45.82], [-75.85, 45.75], [-75.75, 45.5], [-75.87, 45.2], [-75.47, 45.03], [-75.25, 44.5], [-75.35, 44.25], [-75.25, 44.0], [-75.47, 43.47], [-76.0, 43.25], [-76.53, 43.47], [-76.68, 43.82], [-76.75, 43.85], [-77.0, 43.75], [-77.25, 43.85], [-77.5, 43.75], [-77.75, 43.85], [-77.82, 43.82], [-77.97, 43.47], [-78.5, 43.25], [-78.75, 43.35], [-78.82, 43.32], [-78.97, 42.97], [-79.32, 42.82], [-79.47, 42.47], [-80.0, 42.25], 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25.376560465494833]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.974864497526939, 4.328301366541387, 4.127385954256826, 3.3553691456962724]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.947801256119476, 5.464403575635515, 5.3572341014352105, 3.3553691456962724]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6153645895950275, 1.7925057314864024, 1.700406380184982, 1.3557947189452952]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9844638859386612, 2.211184206000325, 2.1825196203222768, 1.3557947189452952]}}