{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:38.588186", "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": "2019-Oct-05_to_2019-Oct-07_15.0_52.0"}, "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": 2019100000259}, "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 05 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 07 2019"}, "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": 56618.18788329189}, "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": ["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": 52.0}, "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": 15.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "15.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 12.75}, "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": 50.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 54.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-10-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.25, 51.5], [12.47, 52.03], [12.82, 52.18], [12.97, 52.53], 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53.15], [14.32, 53.18], [14.47, 53.53], [15.0, 53.75], [15.25, 53.65], [15.5, 53.75], [15.75, 53.65], [16.0, 53.75], [16.25, 53.65], [16.5, 53.75], [16.75, 53.65], [17.0, 53.75], [17.25, 53.65], [17.32, 53.68], [17.47, 54.03], [17.82, 54.18], [17.97, 54.53], [18.5, 54.75], [19.03, 54.53], [19.25, 54.0], [19.15, 53.75], [19.25, 53.5], [19.03, 52.97], [18.68, 52.82], [18.53, 52.47], [18.0, 52.25], [17.75, 52.35], [17.68, 52.32], [17.53, 51.97], [17.0, 51.75], [16.75, 51.85], [16.68, 51.82], [16.53, 51.47], [16.0, 51.25], [15.75, 51.35], [15.68, 51.32], [15.53, 50.97], [15.0, 50.75], [14.75, 50.85], [14.68, 50.82], [14.53, 50.47], [14.0, 50.25], [13.75, 50.35], [13.5, 50.25], [12.97, 50.47], [12.82, 50.82], [12.47, 50.97], [12.25, 51.5]]]]}, "2019-10-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.25, 51.5], [12.47, 52.03], [12.82, 52.18], [12.97, 52.53], [13.32, 52.68], [13.47, 53.03], [14.0, 53.25], [14.25, 53.15], [14.32, 53.18], [14.47, 53.53], [15.0, 53.75], 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"Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [7.381339540221006, 5.062296769695308, 4.9829479579254325]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.196298129429522, 3.7344027089609995, 4.361459110875842]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.044896849226416, -6.229690850446616, -6.149060646087575]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.426210357494028, -7.170559768068699, -7.079162052645302]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3445329583433676, -2.0616760475663534, -2.018654920837646]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4403551945712443, -2.3051587187496825, -2.243620495811387]}}