{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:51.298054", "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": "2013-Jul-14_to_2013-Jul-16_18.5_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": 2013070000872}, "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": "July 14 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 16 2013"}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 126986.83684864838}, "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": []}, "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": 18.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "18.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 12.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 20.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 62.75}, "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": {"2013-07-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.47, 65.53], [12.82, 65.68], [12.97, 66.03], [13.5, 66.25], 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63.35], [12.5, 63.25], [11.97, 63.47], [11.75, 64.0], [11.97, 64.53], [12.37, 64.7], [12.25, 65.0], [12.47, 65.53]]]]}, "2013-07-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.47, 65.53], [12.82, 65.68], [12.97, 66.03], [13.5, 66.25], [13.75, 66.15], [13.82, 66.18], [13.97, 66.53], [14.5, 66.75], [14.75, 66.65], [14.82, 66.68], [14.97, 67.03], [15.5, 67.25], [15.75, 67.15], [16.0, 67.25], [16.25, 67.15], [16.32, 67.18], [16.47, 67.53], [17.0, 67.75], [17.25, 67.65], [17.5, 67.75], [17.75, 67.65], [17.82, 67.68], [17.97, 68.03], [18.5, 68.25], [19.03, 68.03], [19.25, 67.5], [19.13, 67.2], [19.53, 67.03], [19.68, 66.68], [19.75, 66.65], [20.0, 66.75], [20.53, 66.53], [20.68, 66.18], [21.03, 66.03], [21.25, 65.5], [21.03, 64.97], [20.68, 64.82], [20.65, 64.75], [20.75, 64.5], [20.53, 63.97], [20.18, 63.82], [20.03, 63.47], [19.5, 63.25], [19.25, 63.35], [19.18, 63.32], [19.03, 62.97], [18.5, 62.75], [18.25, 62.85], [18.0, 62.75], [17.75, 62.85], [17.68, 62.82], 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evolution of mean t2m.", "value": [9.508547176029936, 8.727004034641368, 9.513529633963572]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.081212420224858, 5.445293447122083, 6.14341914749474]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.1071763398925265, -4.813198080703518, -3.981174758226293]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.133735336033681, -5.569792367784316, -5.474108272583919]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.437341385251853, -1.6659720896693624, -1.3539354032034039]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7074519284949468, -1.9777405375090622, -2.0700740735165213]}}