{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:01.745343", "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": "2011-Nov-29_to_2011-Dec-01_10.0_60.0"}, "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": 2011110002785}, "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": "November 29 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 01 2011"}, "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": 140901.08333698404}, "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": ["Norway", "Sweden"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Europe"]}, "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": ["Skagerrak"]}, "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": 60.0}, "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": 10.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "10.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 8.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 16.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 58.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 62.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-11-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.46, 60.5], [8.25, 61.0], [8.47, 61.53], [9.0, 61.75], [9.25, 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[9.0, 58.75], [8.47, 58.97], [8.25, 59.5], [8.35, 59.75], [8.25, 60.0], [8.46, 60.5]]]]}, "2011-11-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.46, 60.5], [8.25, 61.0], [8.47, 61.53], [9.0, 61.75], [9.25, 61.65], [9.32, 61.68], [9.35, 61.75], [9.25, 62.0], [9.47, 62.53], [10.0, 62.75], [10.25, 62.65], [10.5, 62.75], [10.75, 62.65], [10.82, 62.68], [10.97, 63.03], [11.5, 63.25], [11.75, 63.15], [12.0, 63.25], [12.25, 63.15], [12.5, 63.25], [13.03, 63.03], [13.18, 62.68], [13.25, 62.65], [13.5, 62.75], [14.03, 62.53], [14.18, 62.18], [14.53, 62.03], [14.68, 61.68], [14.75, 61.65], [15.0, 61.75], [15.53, 61.53], [15.75, 61.0], [15.65, 60.75], [15.68, 60.68], [15.75, 60.65], [16.0, 60.75], [16.25, 60.65], [16.5, 60.75], [17.03, 60.53], [17.25, 60.0], [17.03, 59.47], [16.68, 59.32], [16.65, 59.25], [16.75, 59.0], [16.53, 58.47], [16.0, 58.25], [15.75, 58.35], [15.68, 58.32], [15.53, 57.97], [15.0, 57.75], [14.75, 57.85], [14.5, 57.75], [14.0, 57.96], [13.5, 57.75], 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4.207407821927347]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.274608134999824, 8.183498212043162, 8.144431690970919]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.8570990043446605, 6.0680531086168825, 6.220514652309367]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [10.474791394193574, 8.495983870768328, 9.315337252566565]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.486595108347122, 1.3000152063876576, 1.297017660004706]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.806969485991397, 1.478766794233109, 1.484382824694563]}}