{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:03:34.566767", "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-Feb-08_to_2025-Feb-13_6.0_45.5"}, "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": 2025020001183}, "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 08 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 13 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 84175.02067500172}, "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": ["Austria", "France", "Italy", "Switzerland"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe", "Europe", "Europe", "Europe"]}, "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": 45.5}, "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": 6.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "6.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 5.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 12.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 43.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 47.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[4.35, 45.25], [4.25, 45.5], [4.47, 46.03], [5.0, 46.25], [5.25, 46.15], [5.5, 46.25], [5.75, 46.15], [5.82, 46.18], [5.97, 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"description": "List of all IPCC regions affected", "value": ["West&Central-Europe", "Mediterranean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-02-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[5.47, 46.03], [6.0, 46.25], [6.53, 46.03], [6.75, 45.5], [6.53, 44.97], [6.0, 44.75], [5.47, 44.97], [5.25, 45.5], [5.47, 46.03]]]]}, "2025-02-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[6.0, 44.75], [5.47, 44.97], [5.25, 45.5], [5.47, 46.03], [6.0, 46.25], [6.53, 46.03], [6.75, 45.5], [6.53, 44.97], [6.0, 44.75]]], [[[8.97, 47.53], [9.5, 47.75], [9.75, 47.65], [10.0, 47.75], [10.53, 47.53], [10.7, 47.13], [11.0, 47.25], [11.53, 47.03], [11.75, 46.5], [11.53, 45.97], [11.18, 45.82], [11.03, 45.47], [10.5, 45.25], [9.97, 45.47], [9.82, 45.82], [9.75, 45.85], [9.5, 45.75], [8.97, 45.97], [8.75, 46.5], [8.85, 46.75], [8.75, 47.0], [8.97, 47.53]]]]}, 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