{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:00.801211", "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": "2015-Oct-30_to_2015-Nov-01_47.0_45.5"}, "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": 2015100000775}, "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 30 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 01 2015"}, "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": 173188.60758820773}, "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": ["Kazakhstan", "Russian Federation"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Europe", "W.C.Asia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": 45.5}, "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": 47.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "47.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 40.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 52.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 44.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 47.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-10-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.25, 47.5], [40.47, 48.03], [41.0, 48.25], [41.25, 48.15], [41.5, 48.25], [41.75, 48.15], [42.0, 48.25], [42.53, 48.03], [42.68, 47.68], [42.75, 47.65], [42.82, 47.68], [42.97, 48.03], [43.5, 48.25], [43.75, 48.15], [44.0, 48.25], [44.5, 48.04], [45.0, 48.25], [45.25, 48.15], [45.5, 48.25], [45.75, 48.15], [46.0, 48.25], [46.25, 48.15], [46.5, 48.25], [46.75, 48.15], [47.0, 48.25], [47.25, 48.15], [47.5, 48.25], [48.03, 48.03], [48.18, 47.68], [48.53, 47.53], [48.68, 47.18], [48.75, 47.15], [49.0, 47.25], [49.25, 47.15], [49.5, 47.25], [50.03, 47.03], [50.18, 46.68], [50.25, 46.65], [50.5, 46.75], [50.75, 46.65], [51.0, 46.75], [51.25, 46.65], [51.5, 46.75], [51.75, 46.65], [52.0, 46.75], [52.53, 46.53], [52.75, 46.0], [52.53, 45.47], [52.0, 45.25], [51.75, 45.35], [51.68, 45.32], [51.53, 44.97], [51.0, 44.75], [50.75, 44.85], [50.5, 44.75], [50.25, 44.85], [50.0, 44.75], [49.75, 44.85], [49.68, 44.82], [49.53, 44.47], [49.0, 44.25], [48.47, 44.47], [48.25, 45.0], [48.35, 45.25], [48.32, 45.32], [48.25, 45.35], [48.18, 45.32], [48.03, 44.97], [47.68, 44.82], [47.53, 44.47], [47.18, 44.32], [47.03, 43.97], [46.5, 43.75], [46.25, 43.85], [46.0, 43.75], [45.75, 43.85], [45.5, 43.75], [45.25, 43.85], [45.0, 43.75], [44.47, 43.97], [44.32, 44.32], [43.97, 44.47], [43.82, 44.82], [43.47, 44.97], [43.32, 45.32], [42.97, 45.47], [42.8, 45.88], [42.5, 45.75], [42.0, 45.96], [41.5, 45.75], [40.97, 45.97], [40.75, 46.5], [40.85, 46.75], [40.82, 46.82], [40.47, 46.97], [40.25, 47.5]]]]}, "2015-10-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.25, 47.5], [40.47, 48.03], [41.0, 48.25], [41.25, 48.15], [41.5, 48.25], [41.75, 48.15], [42.0, 48.25], [42.53, 48.03], [42.68, 47.68], [42.75, 47.65], [42.82, 47.68], [42.97, 48.03], [43.5, 48.25], [43.75, 48.15], [44.0, 48.25], [44.5, 48.04], [45.0, 48.25], [45.25, 48.15], [45.5, 48.25], [45.75, 48.15], [46.0, 48.25], [46.25, 48.15], [46.5, 48.25], [46.75, 48.15], [47.0, 48.25], [47.25, 48.15], [47.5, 48.25], [48.03, 48.03], [48.18, 47.68], [48.53, 47.53], [48.68, 47.18], [48.75, 47.15], [49.0, 47.25], [49.25, 47.15], [49.5, 47.25], [50.03, 47.03], [50.18, 46.68], [50.25, 46.65], [50.5, 46.75], [50.75, 46.65], [51.0, 46.75], [51.25, 46.65], [51.5, 46.75], [51.75, 46.65], [52.0, 46.75], [52.53, 46.53], [52.75, 46.0], [52.53, 45.47], [52.0, 45.25], [51.75, 45.35], [51.68, 45.32], [51.53, 44.97], [51.0, 44.75], [50.75, 44.85], [50.5, 44.75], [50.25, 44.85], [50.0, 44.75], [49.75, 44.85], [49.68, 44.82], [49.53, 44.47], [49.0, 44.25], [48.47, 44.47], [48.25, 45.0], [48.35, 45.25], [48.32, 45.32], [48.25, 45.35], [48.18, 45.32], [48.03, 44.97], [47.68, 44.82], [47.53, 44.47], [47.18, 44.32], [47.03, 43.97], [46.5, 43.75], [46.25, 43.85], [46.0, 43.75], [45.75, 43.85], [45.5, 43.75], [45.25, 43.85], [45.0, 43.75], [44.47, 43.97], [44.32, 44.32], [43.97, 44.47], [43.82, 44.82], [43.47, 44.97], [43.32, 45.32], [42.97, 45.47], [42.8, 45.88], [42.5, 45.75], [42.0, 45.96], [41.5, 45.75], [40.97, 45.97], [40.75, 46.5], [40.85, 46.75], [40.82, 46.82], [40.47, 46.97], [40.25, 47.5]]]]}, "2015-11-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[40.25, 47.5], [40.47, 48.03], [41.0, 48.25], [41.25, 48.15], [41.5, 48.25], [41.75, 48.15], [42.0, 48.25], [42.53, 48.03], [42.68, 47.68], [42.75, 47.65], [42.82, 47.68], [42.97, 48.03], [43.5, 48.25], [43.75, 48.15], [44.0, 48.25], [44.5, 48.04], [45.0, 48.25], [45.25, 48.15], [45.5, 48.25], [45.75, 48.15], [46.0, 48.25], [46.25, 48.15], [46.5, 48.25], [46.75, 48.15], [47.0, 48.25], [47.25, 48.15], [47.5, 48.25], [48.03, 48.03], [48.18, 47.68], [48.53, 47.53], [48.68, 47.18], [48.75, 47.15], [49.0, 47.25], [49.25, 47.15], [49.5, 47.25], [50.03, 47.03], [50.18, 46.68], [50.25, 46.65], [50.5, 46.75], [50.75, 46.65], [51.0, 46.75], [51.25, 46.65], [51.5, 46.75], [51.75, 46.65], [52.0, 46.75], [52.53, 46.53], [52.75, 46.0], [52.53, 45.47], [52.0, 45.25], [51.75, 45.35], [51.68, 45.32], [51.53, 44.97], [51.0, 44.75], [50.75, 44.85], [50.5, 44.75], [50.25, 44.85], [50.0, 44.75], [49.75, 44.85], [49.68, 44.82], [49.53, 44.47], [49.0, 44.25], [48.47, 44.47], [48.25, 45.0], [48.35, 45.25], [48.32, 45.32], [48.25, 45.35], [48.18, 45.32], [48.03, 44.97], [47.68, 44.82], [47.53, 44.47], [47.18, 44.32], [47.03, 43.97], [46.5, 43.75], [46.25, 43.85], [46.0, 43.75], [45.75, 43.85], [45.5, 43.75], [45.25, 43.85], [45.0, 43.75], [44.47, 43.97], [44.32, 44.32], [43.97, 44.47], [43.82, 44.82], [43.47, 44.97], [43.32, 45.32], [42.97, 45.47], [42.8, 45.88], [42.5, 45.75], [42.0, 45.96], [41.5, 45.75], [40.97, 45.97], [40.75, 46.5], [40.85, 46.75], [40.82, 46.82], [40.47, 46.97], [40.25, 47.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.231756200783195}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.378705594988986}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [1.682136414374952, 0.7838214515892901, 0.9000974296332629]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-0.7439446405820149, -1.889733581944995, -0.9887600611751282]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.987359173644906, -6.728284799312206, -6.4204728120098595]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.031727182341626, -8.231756200783195, -8.144891535532736]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.572048310970969, -1.7598997543478143, -1.7253281700287684]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.754698013272127, -1.9685211363462007, -2.1974838433534254]}}