{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:05:22.829827", "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": "2016-May-15_to_2016-May-17_17.0_50.0"}, "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": 2016050000453}, "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 15 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 17 2016"}, "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": 102878.56195601636}, "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": ["Czech Republic", "Germany", "Poland"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["West&Central-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": 50.0}, "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": 17.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "17.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 11.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 18.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 48.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 52.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-05-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.25, 52.5], [11.47, 53.03], [12.0, 53.25], [12.53, 53.03], 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"2016-05-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.25, 52.5], [11.47, 53.03], [12.0, 53.25], [12.53, 53.03], [12.68, 52.68], [12.75, 52.65], [13.0, 52.75], [13.25, 52.65], [13.5, 52.75], [13.75, 52.65], [14.0, 52.75], [14.25, 52.65], [14.5, 52.75], [14.75, 52.65], [15.0, 52.75], [15.25, 52.65], [15.5, 52.75], [15.75, 52.65], [16.0, 52.75], [16.25, 52.65], [16.32, 52.68], [16.47, 53.03], [17.0, 53.25], [17.25, 53.15], [17.5, 53.25], [18.03, 53.03], [18.18, 52.68], [18.53, 52.53], [18.68, 52.18], [19.03, 52.03], [19.25, 51.5], [19.15, 51.25], [19.25, 51.0], [19.15, 50.75], [19.25, 50.5], [19.03, 49.97], [18.5, 49.75], [18.25, 49.85], [18.18, 49.82], [18.03, 49.47], [17.68, 49.32], [17.53, 48.97], [17.18, 48.82], [17.03, 48.47], [16.5, 48.25], [15.97, 48.47], [15.82, 48.82], [15.47, 48.97], [15.32, 49.32], [14.97, 49.47], [14.82, 49.82], [14.75, 49.85], [14.5, 49.75], [13.97, 49.97], [13.82, 50.32], [13.75, 50.35], [13.5, 50.25], [12.97, 50.47], [12.75, 51.0], [12.88, 51.3], [12.75, 51.35], [12.5, 51.25], [11.97, 51.47], [11.82, 51.82], [11.47, 51.97], [11.25, 52.5]]]]}, "2016-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.25, 52.5], [11.47, 53.03], [12.0, 53.25], [12.53, 53.03], [12.68, 52.68], [12.75, 52.65], [13.0, 52.75], [13.25, 52.65], [13.5, 52.75], [13.75, 52.65], [14.0, 52.75], [14.25, 52.65], [14.5, 52.75], [14.75, 52.65], [15.0, 52.75], [15.25, 52.65], [15.5, 52.75], [15.75, 52.65], [16.0, 52.75], [16.25, 52.65], [16.32, 52.68], [16.47, 53.03], [17.0, 53.25], [17.25, 53.15], [17.5, 53.25], [18.03, 53.03], [18.18, 52.68], [18.53, 52.53], [18.68, 52.18], [19.03, 52.03], [19.25, 51.5], [19.15, 51.25], [19.25, 51.0], [19.15, 50.75], [19.25, 50.5], [19.03, 49.97], [18.5, 49.75], [18.25, 49.85], [18.18, 49.82], [18.03, 49.47], [17.68, 49.32], [17.53, 48.97], [17.18, 48.82], [17.03, 48.47], [16.5, 48.25], [15.97, 48.47], [15.82, 48.82], [15.47, 48.97], [15.32, 49.32], [14.97, 49.47], [14.82, 49.82], [14.75, 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[-5.835117689970637, -5.553681809037131, -5.448553213482131]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.920535198469622, -6.47493175063795, -6.467629716261342]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6388612234488578, -1.5675584933710327, -1.5740200335870858]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8797070492444719, -1.8463396690958147, -1.7701083019534745]}}