{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:03:34.316307", "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-07_to_2025-Feb-12_126.0_68.0"}, "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": 2025020001145}, "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 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 12 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": 64334.51435428388}, "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": ["Russian Federation"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": 68.0}, "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": 126.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "126.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 123.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 126.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 66.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 70.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[127.03, 66.47], [126.5, 66.25], [126.25, 66.35], [126.0, 66.25], [125.75, 66.35], [125.68, 66.32], [125.65, 66.25], 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["Russian-Arctic"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-02-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.25, 69.0], [125.47, 69.53], [126.0, 69.75], [126.53, 69.53], [126.75, 69.0], [126.54, 68.5], [126.75, 68.0], [126.53, 67.47], [126.0, 67.25], [125.47, 67.47], [125.25, 68.0], [125.46, 68.5], [125.25, 69.0]]]]}, "2025-02-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[124.25, 68.5], [124.35, 68.75], [124.25, 69.0], [124.35, 69.25], [124.25, 69.5], [124.47, 70.03], [124.82, 70.18], [124.97, 70.53], [125.5, 70.75], [125.75, 70.65], [126.0, 70.75], [126.25, 70.65], [126.5, 70.75], [127.03, 70.53], [127.25, 70.0], [127.15, 69.75], [127.25, 69.5], [127.15, 69.25], [127.25, 69.0], [127.15, 68.75], [127.25, 68.5], [127.15, 68.25], [127.25, 68.0], [127.15, 67.75], [127.25, 67.5], [127.15, 67.25], [127.25, 67.0], [127.03, 66.47], [126.5, 66.25], 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