{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:55:56.945354", "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-Jun-10_to_2025-Jun-12_140.0_65.5"}, "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": 2025060001729}, "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": "June 10 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 12 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 51125.530571303}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Russian-Arctic"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 65.5}, "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": 140.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "140.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 135.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 141.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 64.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 67.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-06-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.47, 67.03], [136.0, 67.25], [136.25, 67.15], [136.5, 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67.25], [136.25, 67.15], [136.5, 67.25], [136.75, 67.15], [137.0, 67.25], [137.25, 67.15], [137.32, 67.18], [137.35, 67.25], [137.25, 67.5], [137.47, 68.03], [138.0, 68.25], [138.25, 68.15], [138.5, 68.25], [139.03, 68.03], [139.18, 67.68], [139.25, 67.65], [139.5, 67.75], [139.75, 67.65], [140.0, 67.75], [140.53, 67.53], [140.68, 67.18], [140.75, 67.15], [141.0, 67.25], [141.25, 67.15], [141.5, 67.25], [142.03, 67.03], [142.25, 66.5], [142.15, 66.25], [142.25, 66.0], [142.03, 65.47], [141.68, 65.32], [141.53, 64.97], [141.0, 64.75], [140.75, 64.85], [140.68, 64.82], [140.53, 64.47], [140.0, 64.25], [139.47, 64.47], [139.32, 64.82], [139.25, 64.85], [139.0, 64.75], [138.75, 64.85], [138.5, 64.75], [138.25, 64.85], [138.0, 64.75], [137.5, 64.96], [137.0, 64.75], [136.75, 64.85], [136.5, 64.75], [135.97, 64.97], [135.82, 65.32], [135.47, 65.47], [135.25, 66.0], [135.35, 66.25], [135.25, 66.5], [135.47, 67.03]]]]}, "2025-06-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": 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amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 11.133046102911294}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.706967110201517}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.397178687118924, 16.44037566766508, 14.652006171001688]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.277246093750023, 19.511426544189476, 17.596917724609398]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.337264215536978, 9.002017181615328, 6.781619933452234]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [10.022792902990773, 11.133046102911294, 7.808771666720645]}, 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