{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:21.851188", "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": "2014-May-04_to_2014-May-06_30.0_53.0"}, "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": 2014050000260}, "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 04 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 06 2014"}, "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": 160410.80095604682}, "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": ["Belarus", "Russian Federation", "Ukraine"]}, "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": ["Asia", "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": 53.0}, "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": 30.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "30.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 25.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 35.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 49.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 55.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-05-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.75, 51.5], [24.97, 52.03], [25.5, 52.25], [25.75, 52.15], [25.82, 52.18], [25.97, 52.53], [26.32, 52.68], [26.47, 53.03], [26.82, 53.18], [26.85, 53.25], [26.75, 53.5], [26.97, 54.03], [27.5, 54.25], [27.75, 54.15], [27.82, 54.18], [27.97, 54.53], [28.5, 54.75], [28.75, 54.65], [29.0, 54.75], [29.25, 54.65], [29.32, 54.68], [29.47, 55.03], [30.0, 55.25], [30.25, 55.15], [30.5, 55.25], [30.75, 55.15], [31.0, 55.25], [31.25, 55.15], [31.32, 55.18], [31.47, 55.53], [32.0, 55.75], [32.53, 55.53], [32.68, 55.18], [32.75, 55.15], [32.82, 55.18], [32.97, 55.53], [33.5, 55.75], [33.75, 55.65], [33.82, 55.68], [33.97, 56.03], [34.5, 56.25], [34.75, 56.15], [35.0, 56.25], [35.53, 56.03], [35.75, 55.5], [35.53, 54.97], [35.18, 54.82], [35.03, 54.47], [34.68, 54.32], [34.53, 53.97], [34.18, 53.82], [34.03, 53.47], [33.5, 53.25], [33.25, 53.35], [33.18, 53.32], [33.03, 52.97], [32.68, 52.82], [32.53, 52.47], [32.18, 52.32], [32.03, 51.97], [31.5, 51.75], [31.25, 51.85], [31.18, 51.82], [31.03, 51.47], [30.5, 51.25], [30.25, 51.35], [30.0, 51.25], [29.75, 51.35], [29.68, 51.32], [29.53, 50.97], [29.18, 50.82], [29.03, 50.47], [28.5, 50.25], [28.25, 50.35], [28.18, 50.32], [28.03, 49.97], [27.5, 49.75], [27.25, 49.85], [27.18, 49.82], [27.03, 49.47], [26.5, 49.25], [26.25, 49.35], [26.0, 49.25], [25.47, 49.47], [25.25, 50.0], [25.35, 50.25], [25.25, 50.5], [25.35, 50.75], [25.32, 50.82], [24.97, 50.97], [24.75, 51.5]]]]}, "2014-05-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.75, 51.5], [24.97, 52.03], [25.5, 52.25], [25.75, 52.15], [25.82, 52.18], [25.97, 52.53], [26.32, 52.68], [26.47, 53.03], [26.82, 53.18], [26.85, 53.25], [26.75, 53.5], [26.97, 54.03], [27.5, 54.25], [27.75, 54.15], [27.82, 54.18], [27.97, 54.53], [28.5, 54.75], [28.75, 54.65], [29.0, 54.75], [29.25, 54.65], [29.32, 54.68], [29.47, 55.03], [30.0, 55.25], [30.25, 55.15], [30.5, 55.25], [30.75, 55.15], [31.0, 55.25], [31.25, 55.15], [31.32, 55.18], [31.47, 55.53], [32.0, 55.75], [32.53, 55.53], [32.68, 55.18], [32.75, 55.15], [32.82, 55.18], [32.97, 55.53], [33.5, 55.75], [33.75, 55.65], [33.82, 55.68], [33.97, 56.03], [34.5, 56.25], [34.75, 56.15], [35.0, 56.25], [35.53, 56.03], [35.75, 55.5], [35.53, 54.97], [35.18, 54.82], [35.03, 54.47], [34.68, 54.32], [34.53, 53.97], [34.18, 53.82], [34.03, 53.47], [33.5, 53.25], [33.25, 53.35], [33.18, 53.32], [33.03, 52.97], [32.68, 52.82], [32.53, 52.47], [32.18, 52.32], [32.03, 51.97], [31.5, 51.75], [31.25, 51.85], [31.18, 51.82], [31.03, 51.47], [30.5, 51.25], [30.25, 51.35], [30.0, 51.25], [29.75, 51.35], [29.68, 51.32], [29.53, 50.97], [29.18, 50.82], [29.03, 50.47], [28.5, 50.25], [28.25, 50.35], [28.18, 50.32], [28.03, 49.97], [27.5, 49.75], [27.25, 49.85], [27.18, 49.82], [27.03, 49.47], [26.5, 49.25], [26.25, 49.35], [26.0, 49.25], [25.47, 49.47], [25.25, 50.0], [25.35, 50.25], [25.25, 50.5], [25.35, 50.75], [25.32, 50.82], [24.97, 50.97], [24.75, 51.5]]]]}, "2014-05-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.75, 51.5], [24.97, 52.03], [25.5, 52.25], [25.75, 52.15], [25.82, 52.18], [25.97, 52.53], [26.32, 52.68], [26.47, 53.03], [26.82, 53.18], [26.85, 53.25], [26.75, 53.5], [26.97, 54.03], [27.5, 54.25], [27.75, 54.15], [27.82, 54.18], [27.97, 54.53], [28.5, 54.75], [28.75, 54.65], [29.0, 54.75], [29.25, 54.65], [29.32, 54.68], [29.47, 55.03], [30.0, 55.25], [30.25, 55.15], [30.5, 55.25], [30.75, 55.15], [31.0, 55.25], [31.25, 55.15], [31.32, 55.18], [31.47, 55.53], [32.0, 55.75], [32.53, 55.53], [32.68, 55.18], [32.75, 55.15], [32.82, 55.18], [32.97, 55.53], [33.5, 55.75], [33.75, 55.65], [33.82, 55.68], [33.97, 56.03], [34.5, 56.25], [34.75, 56.15], [35.0, 56.25], [35.53, 56.03], [35.75, 55.5], [35.53, 54.97], [35.18, 54.82], [35.03, 54.47], [34.68, 54.32], [34.53, 53.97], [34.18, 53.82], [34.03, 53.47], [33.5, 53.25], [33.25, 53.35], [33.18, 53.32], [33.03, 52.97], [32.68, 52.82], [32.53, 52.47], [32.18, 52.32], [32.03, 51.97], [31.5, 51.75], [31.25, 51.85], [31.18, 51.82], [31.03, 51.47], [30.5, 51.25], [30.25, 51.35], [30.0, 51.25], [29.75, 51.35], [29.68, 51.32], [29.53, 50.97], [29.18, 50.82], [29.03, 50.47], [28.5, 50.25], [28.25, 50.35], [28.18, 50.32], [28.03, 49.97], [27.5, 49.75], [27.25, 49.85], [27.18, 49.82], [27.03, 49.47], [26.5, 49.25], [26.25, 49.35], [26.0, 49.25], [25.47, 49.47], [25.25, 50.0], [25.35, 50.25], [25.25, 50.5], [25.35, 50.75], [25.32, 50.82], [24.97, 50.97], [24.75, 51.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.829975148590393}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -7.377338332267119}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [5.344771617104357, 4.829849669259261, 4.840746420220853]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [3.856501702076514, 3.6259302687129207, 2.7837369393873246]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.879228038345837, -7.516196351838662, -7.736590606616866]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.927996458968664, -8.26010984693147, -8.829975148590393]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7552776145146587, -1.9865080174636311, -2.0653951773956747]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.018638878143688, -2.1882666437412865, -2.377391025256117]}}