{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:23:46.970235", "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-Oct-01_to_2022-Oct-03_45.5_55.5"}, "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": 2022100001421}, "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": "October 01 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 03 2022"}, "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": 107330.13103682367}, "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": 55.5}, "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": 45.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "45.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 41.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 46.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 53.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 58.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[40.47, 56.53], [40.82, 56.68], [40.96, 57.0], [40.75, 57.5], [40.85, 57.75], [40.75, 58.0], [40.97, 58.53], [41.5, 58.75], [41.75, 58.65], [42.0, 58.75], [42.53, 58.53], [42.68, 58.18], [43.03, 58.03], [43.18, 57.68], [43.53, 57.53], [43.68, 57.18], [44.03, 57.03], [44.18, 56.68], [44.53, 56.53], [44.68, 56.18], [44.75, 56.15], [45.0, 56.25], [45.25, 56.15], [45.5, 56.25], [45.75, 56.15], [46.0, 56.25], [46.53, 56.03], [46.75, 55.5], [46.65, 55.25], [46.75, 55.0], [46.63, 54.7], [47.03, 54.53], [47.25, 54.0], [47.15, 53.75], [47.25, 53.5], [47.03, 52.97], [46.5, 52.75], [46.25, 52.85], [46.18, 52.82], [46.03, 52.47], [45.5, 52.25], [45.25, 52.35], [45.0, 52.25], [44.47, 52.47], [44.25, 53.0], [44.35, 53.25], [44.32, 53.32], [44.25, 53.35], [44.0, 53.25], [43.75, 53.35], [43.5, 53.25], [42.97, 53.47], [42.82, 53.82], [42.75, 53.85], [42.5, 53.75], [42.25, 53.85], [42.0, 53.75], [41.47, 53.97], [41.32, 54.32], [40.97, 54.47], [40.75, 55.0], [40.85, 55.25], [40.82, 55.32], [40.47, 55.47], [40.25, 56.0], [40.47, 56.53]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Europe"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-10-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.47, 55.47], [40.25, 56.0], [40.47, 56.53], [40.82, 56.68], [40.96, 57.0], [40.75, 57.5], [40.85, 57.75], [40.75, 58.0], [40.97, 58.53], [41.5, 58.75], [41.75, 58.65], [42.0, 58.75], [42.53, 58.53], [42.68, 58.18], [43.03, 58.03], [43.18, 57.68], [43.53, 57.53], [43.68, 57.18], [44.03, 57.03], [44.18, 56.68], [44.53, 56.53], [44.68, 56.18], [44.75, 56.15], [45.0, 56.25], [45.25, 56.15], [45.5, 56.25], [45.75, 56.15], [46.0, 56.25], [46.53, 56.03], [46.75, 55.5], [46.65, 55.25], [46.75, 55.0], [46.63, 54.7], [47.03, 54.53], [47.25, 54.0], [47.15, 53.75], [47.25, 53.5], [47.03, 52.97], [46.5, 52.75], [46.25, 52.85], [46.18, 52.82], [46.03, 52.47], [45.5, 52.25], [45.25, 52.35], [45.0, 52.25], [44.47, 52.47], [44.25, 53.0], [44.35, 53.25], [44.32, 53.32], [44.25, 53.35], [44.0, 53.25], [43.75, 53.35], [43.5, 53.25], [42.97, 53.47], [42.82, 53.82], [42.75, 53.85], [42.5, 53.75], [42.25, 53.85], [42.0, 53.75], [41.47, 53.97], [41.32, 54.32], [40.97, 54.47], [40.75, 55.0], [40.85, 55.25], [40.82, 55.32], [40.47, 55.47]]]]}, "2022-10-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.47, 55.47], [40.25, 56.0], [40.47, 56.53], [40.82, 56.68], [40.96, 57.0], [40.75, 57.5], [40.85, 57.75], [40.75, 58.0], [40.97, 58.53], [41.5, 58.75], [41.75, 58.65], [42.0, 58.75], [42.53, 58.53], [42.68, 58.18], [43.03, 58.03], [43.18, 57.68], [43.53, 57.53], [43.68, 57.18], [44.03, 57.03], [44.18, 56.68], [44.53, 56.53], [44.68, 56.18], [44.75, 56.15], [45.0, 56.25], [45.25, 56.15], [45.5, 56.25], [45.75, 56.15], [46.0, 56.25], [46.53, 56.03], [46.75, 55.5], [46.65, 55.25], [46.75, 55.0], [46.63, 54.7], [47.03, 54.53], [47.25, 54.0], [47.15, 53.75], [47.25, 53.5], [47.03, 52.97], [46.5, 52.75], [46.25, 52.85], [46.18, 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"Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.848480064193382, 16.688551303289103, 15.283974726161205]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.4040274273816316, 6.827803831697191, 5.965099981051776]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.0359657416057075, 8.220196700588417, 7.327953385062131]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3437242114193078, 1.7063568926328878, 1.510822864514352]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.468383612744663, 1.9873337756775953, 1.9062947028703]}}