{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:23.855493", "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": "2010-Aug-10_to_2010-Aug-12_83.0_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": 2010080000488}, "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": "August 10 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 12 2010"}, "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": 68828.52252019614}, "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": ["China", "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": 83.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "83.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 80.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 85.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 45.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 48.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-08-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.75, 46.5], [79.97, 47.03], [80.5, 47.25], [80.8, 47.13], [80.85, 47.25], [80.82, 47.32], [80.47, 47.47], [80.25, 48.0], [80.47, 48.53], [80.82, 48.68], [80.97, 49.03], [81.5, 49.25], [81.75, 49.15], [82.0, 49.25], [82.25, 49.15], [82.5, 49.25], [82.75, 49.15], [83.0, 49.25], [83.25, 49.15], [83.5, 49.25], [83.75, 49.15], [84.0, 49.25], [84.25, 49.15], [84.5, 49.25], [85.03, 49.03], [85.18, 48.68], [85.53, 48.53], [85.75, 48.0], [85.53, 47.47], [85.0, 47.25], [84.75, 47.35], [84.68, 47.32], [84.53, 46.97], [84.18, 46.82], [84.15, 46.75], [84.25, 46.5], [84.03, 45.97], [83.5, 45.75], [83.25, 45.85], [83.0, 45.75], [82.75, 45.85], [82.5, 45.75], [82.25, 45.85], [82.0, 45.75], [81.75, 45.85], [81.68, 45.82], [81.53, 45.47], [81.0, 45.25], [80.47, 45.47], [80.32, 45.82], [79.97, 45.97], [79.75, 46.5]]]]}, "2010-08-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.75, 46.5], [79.97, 47.03], [80.5, 47.25], [80.8, 47.13], [80.85, 47.25], [80.82, 47.32], [80.47, 47.47], [80.25, 48.0], [80.47, 48.53], [80.82, 48.68], [80.97, 49.03], [81.5, 49.25], [81.75, 49.15], [82.0, 49.25], [82.25, 49.15], [82.5, 49.25], [82.75, 49.15], [83.0, 49.25], [83.25, 49.15], [83.5, 49.25], [83.75, 49.15], [84.0, 49.25], [84.25, 49.15], [84.5, 49.25], [85.03, 49.03], [85.18, 48.68], [85.53, 48.53], [85.75, 48.0], [85.53, 47.47], [85.0, 47.25], [84.75, 47.35], [84.68, 47.32], [84.53, 46.97], [84.18, 46.82], [84.15, 46.75], [84.25, 46.5], [84.03, 45.97], [83.5, 45.75], [83.25, 45.85], [83.0, 45.75], [82.75, 45.85], [82.5, 45.75], [82.25, 45.85], [82.0, 45.75], [81.75, 45.85], [81.68, 45.82], [81.53, 45.47], [81.0, 45.25], [80.47, 45.47], [80.32, 45.82], [79.97, 45.97], [79.75, 46.5]]]]}, "2010-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.75, 46.5], [79.97, 47.03], [80.5, 47.25], [80.8, 47.13], [80.85, 47.25], [80.82, 47.32], [80.47, 47.47], [80.25, 48.0], [80.47, 48.53], [80.82, 48.68], [80.97, 49.03], [81.5, 49.25], [81.75, 49.15], [82.0, 49.25], [82.25, 49.15], [82.5, 49.25], [82.75, 49.15], [83.0, 49.25], [83.25, 49.15], [83.5, 49.25], [83.75, 49.15], [84.0, 49.25], [84.25, 49.15], [84.5, 49.25], [85.03, 49.03], [85.18, 48.68], [85.53, 48.53], [85.75, 48.0], [85.53, 47.47], [85.0, 47.25], [84.75, 47.35], [84.68, 47.32], [84.53, 46.97], [84.18, 46.82], [84.15, 46.75], [84.25, 46.5], [84.03, 45.97], [83.5, 45.75], [83.25, 45.85], [83.0, 45.75], [82.75, 45.85], [82.5, 45.75], [82.25, 45.85], [82.0, 45.75], [81.75, 45.85], [81.68, 45.82], [81.53, 45.47], [81.0, 45.25], [80.47, 45.47], [80.32, 45.82], [79.97, 45.97], [79.75, 46.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.707023019468977}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.057548829014917}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.3623146139401, 14.21320100024468, 15.509006214078909]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.56972082763815, 8.141334502201516, 9.825381097780053]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.953123119429081, -6.853236584267506, -5.366286783348154]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.0818885225758095, -7.707023019468977, -6.512284603815715]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7086716943321745, -1.9974940505096497, -1.5943593640080684]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.024002157199787, -2.1459868976594176, -1.87879338773181]}}