{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:13:18.251768", "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": "2018-Jul-12_to_2018-Jul-16_280.5_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": 2018070002223}, "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 12 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 16 2018"}, "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": 66334.5397132664}, "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": ["E.North-America", "N.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": ["Hudson Bay"]}, "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": 280.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "280.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 276.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 281.25}, "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": {"2018-07-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-81.53, 51.97], [-81.75, 52.5], [-81.53, 53.03], [-81.0, 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"MultiPolygon", "coordinates": [[[[-83.53, 50.03], [-83.18, 50.18], [-83.03, 50.53], [-82.68, 50.68], [-82.53, 51.03], [-82.18, 51.18], [-82.04, 51.5], [-82.18, 51.82], [-82.53, 51.97], [-82.75, 52.5], [-82.53, 53.03], [-82.18, 53.18], [-82.03, 53.53], [-81.5, 53.75], [-80.97, 53.53], [-80.82, 53.18], [-80.75, 53.15], [-80.5, 53.25], [-79.97, 53.03], [-79.82, 52.68], [-79.75, 52.65], [-79.5, 52.75], [-79.25, 52.65], [-79.0, 52.75], [-78.47, 52.53], [-78.25, 52.0], [-78.47, 51.47], [-79.0, 51.25], [-79.25, 51.35], [-79.32, 51.32], [-79.47, 50.97], [-79.82, 50.82], [-79.85, 50.75], [-79.75, 50.5], [-79.85, 50.25], [-79.75, 50.0], [-79.97, 49.47], [-80.32, 49.32], [-80.47, 48.97], [-81.0, 48.75], [-81.25, 48.85], [-81.32, 48.82], [-81.47, 48.47], [-82.0, 48.25], [-82.25, 48.35], [-82.5, 48.25], [-82.75, 48.35], [-83.0, 48.25], [-83.53, 48.47], [-83.75, 49.0], [-83.65, 49.25], [-83.75, 49.5], [-83.53, 50.03]]]]}, "2018-07-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": 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