{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:29:25.253208", "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": "2022-Feb-07_to_2022-Feb-10_255.5_48.5"}, "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": 2022020001571}, "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 07 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 10 2022"}, "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": 74550.95006710789}, "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": ["United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.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": 48.5}, "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": 255.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "255.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 255.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 260.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 44.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 48.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-02-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-105.03, 47.97], [-105.25, 48.5], [-105.03, 49.03], [-104.5, 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"coordinates": [[[[-105.03, 47.97], [-105.25, 48.5], [-105.03, 49.03], [-104.5, 49.25], [-104.25, 49.15], [-104.0, 49.25], [-103.75, 49.15], [-103.5, 49.25], [-103.25, 49.15], [-103.0, 49.25], [-102.47, 49.03], [-102.32, 48.68], [-102.25, 48.65], [-102.0, 48.75], [-101.47, 48.53], [-101.32, 48.18], [-101.25, 48.15], [-101.0, 48.25], [-100.47, 48.03], [-100.32, 47.68], [-99.97, 47.53], [-99.82, 47.18], [-99.47, 47.03], [-99.25, 46.5], [-99.47, 45.97], [-99.82, 45.82], [-99.85, 45.75], [-99.75, 45.5], [-99.85, 45.25], [-99.75, 45.0], [-99.85, 44.75], [-99.75, 44.5], [-99.97, 43.97], [-100.5, 43.75], [-100.75, 43.85], [-101.0, 43.75], [-101.25, 43.85], [-101.5, 43.75], [-101.75, 43.85], [-102.0, 43.75], [-102.53, 43.97], [-102.75, 44.5], [-102.65, 44.75], [-102.75, 45.0], [-102.65, 45.25], [-102.75, 45.5], [-102.65, 45.75], [-102.75, 46.0], [-102.65, 46.25], [-102.75, 46.5], [-102.65, 46.75], [-102.75, 47.0], [-102.65, 47.25], [-102.68, 47.32], [-102.75, 47.35], [-103.0, 47.25], [-103.53, 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