{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:32.887025", "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-Jan-21_to_2014-Jan-23_64.5_48.0"}, "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": 2014010000917}, "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": "January 21 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 23 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": 67101.25957752366}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.Siberia"]}, "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": 48.0}, "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": 64.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "64.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 60.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 65.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 47.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 50.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-01-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[60.25, 49.0], [60.47, 49.53], [61.0, 49.75], [61.25, 49.65], [61.5, 49.75], [61.75, 49.65], [61.82, 49.68], [61.97, 50.03], [62.32, 50.18], [62.47, 50.53], [63.0, 50.75], [63.25, 50.65], [63.5, 50.75], [64.03, 50.53], [64.18, 50.18], [64.25, 50.15], [64.5, 50.25], [64.75, 50.15], [65.0, 50.25], [65.25, 50.15], [65.5, 50.25], [66.03, 50.03], [66.25, 49.5], [66.15, 49.25], [66.25, 49.0], [66.03, 48.47], [65.68, 48.32], [65.53, 47.97], [65.18, 47.82], [65.03, 47.47], [64.5, 47.25], [64.0, 47.46], [63.5, 47.25], [63.25, 47.35], [63.0, 47.25], [62.47, 47.47], [62.3, 47.88], [62.18, 47.82], [62.03, 47.47], [61.5, 47.25], [61.25, 47.35], [61.0, 47.25], [60.75, 47.35], [60.5, 47.25], [59.97, 47.47], [59.75, 48.0], [59.97, 48.53], [60.32, 48.68], [60.35, 48.75], [60.25, 49.0]]]]}, "2014-01-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[60.25, 49.0], [60.47, 49.53], [61.0, 49.75], [61.25, 49.65], [61.5, 49.75], [61.75, 49.65], [61.82, 49.68], [61.97, 50.03], [62.32, 50.18], [62.47, 50.53], [63.0, 50.75], [63.25, 50.65], [63.5, 50.75], [64.03, 50.53], [64.18, 50.18], [64.25, 50.15], [64.5, 50.25], [64.75, 50.15], [65.0, 50.25], [65.25, 50.15], [65.5, 50.25], [66.03, 50.03], [66.25, 49.5], [66.15, 49.25], [66.25, 49.0], [66.03, 48.47], [65.68, 48.32], [65.53, 47.97], [65.18, 47.82], [65.03, 47.47], [64.5, 47.25], [64.0, 47.46], [63.5, 47.25], [63.25, 47.35], [63.0, 47.25], [62.47, 47.47], [62.3, 47.88], [62.18, 47.82], [62.03, 47.47], [61.5, 47.25], [61.25, 47.35], [61.0, 47.25], [60.75, 47.35], [60.5, 47.25], [59.97, 47.47], [59.75, 48.0], [59.97, 48.53], [60.32, 48.68], [60.35, 48.75], [60.25, 49.0]]]]}, "2014-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[60.25, 49.0], [60.47, 49.53], [61.0, 49.75], [61.25, 49.65], [61.5, 49.75], [61.75, 49.65], [61.82, 49.68], [61.97, 50.03], [62.32, 50.18], [62.47, 50.53], [63.0, 50.75], [63.25, 50.65], [63.5, 50.75], [64.03, 50.53], [64.18, 50.18], [64.25, 50.15], [64.5, 50.25], [64.75, 50.15], [65.0, 50.25], [65.25, 50.15], [65.5, 50.25], [66.03, 50.03], [66.25, 49.5], [66.15, 49.25], [66.25, 49.0], [66.03, 48.47], [65.68, 48.32], [65.53, 47.97], [65.18, 47.82], [65.03, 47.47], [64.5, 47.25], [64.0, 47.46], [63.5, 47.25], [63.25, 47.35], [63.0, 47.25], [62.47, 47.47], [62.3, 47.88], [62.18, 47.82], [62.03, 47.47], [61.5, 47.25], [61.25, 47.35], [61.0, 47.25], [60.75, 47.35], [60.5, 47.25], [59.97, 47.47], [59.75, 48.0], [59.97, 48.53], [60.32, 48.68], [60.35, 48.75], [60.25, 49.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -14.814038721651116}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -11.862385361866556}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-25.405339693727996, -25.345191546957068, -24.15759532876737]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-26.396872458659374, -26.96323393866146, -26.18271155806815]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-12.389193000643266, -12.207283927166197, -10.990679157790206]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-13.885949171280743, -14.814038721651116, -12.30210207346127]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7073579873860707, -1.6407649327094243, -1.4343160744173358]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9882327874604853, -2.053734238315427, -1.5823997052359133]}}