{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:53:34.531169", "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": "2023-May-22_to_2023-May-25_42.5_60.5"}, "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": 2023050002422}, "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": "May 22 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 25 2023"}, "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": 76582.19579509903}, "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": 60.5}, "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": 42.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "42.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 41.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 47.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 57.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 62.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[41.75, 61.15], [41.82, 61.18], [41.85, 61.25], [41.75, 61.5], [41.85, 61.75], [41.75, 62.0], [41.97, 62.53], [42.5, 62.75], 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"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": {"2023-05-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.75, 60.5], [40.97, 61.03], [41.5, 61.25], [41.75, 61.15], [41.82, 61.18], [41.85, 61.25], [41.75, 61.5], [41.85, 61.75], [41.75, 62.0], [41.97, 62.53], [42.5, 62.75], [43.03, 62.53], [43.18, 62.18], [43.53, 62.03], [43.75, 61.5], [43.53, 60.97], [43.18, 60.82], [43.15, 60.75], [43.25, 60.5], [43.15, 60.25], [43.18, 60.18], [43.53, 60.03], [43.7, 59.63], [44.0, 59.75], [44.53, 59.53], [44.75, 59.0], [44.53, 58.47], [44.0, 58.25], [43.47, 58.47], [43.3, 58.88], [43.18, 58.82], [43.03, 58.47], [42.5, 58.25], [41.97, 58.47], [41.82, 58.82], [41.47, 58.97], [41.32, 59.32], [40.97, 59.47], [40.75, 60.0], [40.85, 60.25], [40.75, 60.5]]]]}, "2023-05-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.75, 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"anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.383748445760367, 7.536052396288103, 7.682668473552306, 7.707587081559888]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.802429377678436, 8.971237017019348, 8.71392312330073, 9.319230379125827]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4178071125210283, 1.4577642177825445, 1.4904135796247895, 1.5336674993043677]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4778581704714597, 1.7779322683697065, 1.6267758735328912, 1.7760299590534445]}}