{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:56.353764", "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-Jun-24_to_2010-Jun-27_85.5_65.0"}, "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": 2010060000913}, "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": "June 24 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 27 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 195819.8780107065}, "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": ["Russian Federation"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Siberia", "Russian-Arctic", "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": 65.0}, "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": 85.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "85.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 81.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 95.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 63.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 68.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-06-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[83.47, 63.97], [83.25, 64.5], [83.47, 65.03], [84.0, 65.25], [84.25, 65.15], [84.5, 65.25], [84.8, 65.13], [84.97, 65.53], [85.5, 65.75], [86.03, 65.53], [86.25, 65.0], [86.03, 64.47], [85.5, 64.25], [85.2, 64.38], [85.03, 63.97], [84.5, 63.75], [84.25, 63.85], [84.0, 63.75], [83.47, 63.97]]]]}, "2010-06-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[80.97, 65.47], [80.75, 66.0], [80.97, 66.53], [81.5, 66.75], [81.75, 66.65], [82.0, 66.75], [82.25, 66.65], [82.5, 66.75], [82.75, 66.65], [83.0, 66.75], [83.25, 66.65], [83.32, 66.68], [83.35, 66.75], [83.25, 67.0], [83.47, 67.53], [83.82, 67.68], [83.85, 67.75], [83.75, 68.0], [83.97, 68.53], [84.5, 68.75], [85.03, 68.53], [85.18, 68.18], [85.25, 68.15], [85.5, 68.25], [85.75, 68.15], [86.0, 68.25], [86.53, 68.03], [86.68, 67.68], [86.75, 67.65], [86.82, 67.68], [86.85, 67.75], [86.75, 68.0], [86.97, 68.53], [87.5, 68.75], [87.75, 68.65], [88.0, 68.75], [88.25, 68.65], [88.5, 68.75], [88.75, 68.65], [89.0, 68.75], [89.53, 68.53], [89.75, 68.0], [89.65, 67.75], [89.68, 67.68], [89.75, 67.65], [90.0, 67.75], [90.25, 67.65], [90.5, 67.75], [90.75, 67.65], [91.0, 67.75], [91.25, 67.65], [91.5, 67.75], [92.03, 67.53], [92.18, 67.18], [92.25, 67.15], [92.5, 67.25], [92.75, 67.15], [93.0, 67.25], [93.25, 67.15], [93.5, 67.25], [93.75, 67.15], [94.0, 67.25], [94.25, 67.15], [94.5, 67.25], [95.03, 67.03], [95.25, 66.5], [95.15, 66.25], [95.18, 66.18], [95.25, 66.15], [95.5, 66.25], [96.03, 66.03], [96.25, 65.5], [96.15, 65.25], [96.25, 65.0], [96.03, 64.47], [95.5, 64.25], [95.0, 64.46], [94.68, 64.32], [94.53, 63.97], [94.18, 63.82], [94.03, 63.47], [93.5, 63.25], [93.25, 63.35], [93.0, 63.25], [92.75, 63.35], [92.68, 63.32], [92.53, 62.97], [92.0, 62.75], [91.75, 62.85], [91.5, 62.75], [90.97, 62.97], [90.82, 63.32], [90.75, 63.35], [90.5, 63.25], [89.97, 63.47], [89.82, 63.82], [89.75, 63.85], [89.5, 63.75], [89.07, 63.93], [89.25, 63.5], [89.03, 62.97], [88.5, 62.75], [88.25, 62.85], [88.0, 62.75], [87.75, 62.85], [87.5, 62.75], [86.97, 62.97], [86.82, 63.32], [86.47, 63.47], [86.32, 63.82], [86.25, 63.85], [86.0, 63.75], [85.75, 63.85], [85.5, 63.75], [85.25, 63.85], [85.18, 63.82], [85.03, 63.47], [84.5, 63.25], [84.25, 63.35], [84.0, 63.25], [83.47, 63.47], [83.25, 64.0], [83.35, 64.25], [83.25, 64.5], [83.47, 65.03], [84.0, 65.25], [83.75, 65.35], [83.5, 65.25], [83.25, 65.35], [83.0, 65.25], [82.75, 65.35], [82.5, 65.25], [82.25, 65.35], [82.0, 65.25], [81.75, 65.35], [81.5, 65.25], [80.97, 65.47]], [[84.25, 65.15], [84.5, 65.25], [84.25, 65.35], [84.0, 65.25], [84.25, 65.15]], [[84.75, 65.15], [84.82, 65.18], [84.85, 65.25], [84.82, 65.32], [84.75, 65.35], [84.5, 65.25], [84.75, 65.15]], [[88.68, 64.32], [88.65, 64.25], [88.68, 64.18], [88.93, 64.07], [88.82, 64.32], [88.75, 64.35], [88.68, 64.32]]]]}, "2010-06-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[80.97, 65.47], [80.75, 66.0], [80.97, 66.53], [81.5, 66.75], [81.75, 66.65], [82.0, 66.75], [82.25, 66.65], [82.5, 66.75], [82.75, 66.65], [83.0, 66.75], [83.25, 66.65], [83.32, 66.68], [83.35, 66.75], [83.25, 67.0], [83.47, 67.53], [83.82, 67.68], [83.85, 67.75], [83.75, 68.0], [83.97, 68.53], [84.5, 68.75], [85.03, 68.53], [85.18, 68.18], [85.25, 68.15], [85.5, 68.25], [85.75, 68.15], [86.0, 68.25], [86.53, 68.03], [86.68, 67.68], [86.75, 67.65], [86.82, 67.68], [86.85, 67.75], [86.75, 68.0], [86.97, 68.53], [87.5, 68.75], [87.75, 68.65], [88.0, 68.75], [88.25, 68.65], [88.5, 68.75], [88.75, 68.65], [89.0, 68.75], [89.53, 68.53], [89.75, 68.0], [89.65, 67.75], [89.68, 67.68], [89.75, 67.65], [90.0, 67.75], [90.25, 67.65], [90.5, 67.75], [90.75, 67.65], [91.0, 67.75], [91.25, 67.65], [91.5, 67.75], [92.03, 67.53], [92.18, 67.18], [92.25, 67.15], [92.5, 67.25], [92.75, 67.15], [93.0, 67.25], [93.25, 67.15], [93.5, 67.25], [93.75, 67.15], [94.0, 67.25], [94.25, 67.15], [94.5, 67.25], [95.03, 67.03], [95.25, 66.5], [95.15, 66.25], [95.18, 66.18], [95.25, 66.15], [95.5, 66.25], [96.03, 66.03], [96.25, 65.5], [96.15, 65.25], [96.25, 65.0], [96.03, 64.47], [95.5, 64.25], [95.0, 64.46], [94.68, 64.32], [94.53, 63.97], [94.18, 63.82], [94.03, 63.47], [93.5, 63.25], [93.25, 63.35], [93.0, 63.25], [92.75, 63.35], [92.68, 63.32], [92.53, 62.97], [92.0, 62.75], [91.75, 62.85], [91.5, 62.75], [90.97, 62.97], [90.82, 63.32], [90.75, 63.35], [90.5, 63.25], [89.97, 63.47], [89.82, 63.82], [89.75, 63.85], [89.5, 63.75], [89.07, 63.93], [89.25, 63.5], [89.03, 62.97], [88.5, 62.75], [88.25, 62.85], [88.0, 62.75], [87.75, 62.85], [87.5, 62.75], [86.97, 62.97], [86.82, 63.32], [86.47, 63.47], [86.32, 63.82], [86.25, 63.85], [86.0, 63.75], [85.75, 63.85], [85.5, 63.75], [85.25, 63.85], [85.18, 63.82], [85.03, 63.47], [84.5, 63.25], [84.25, 63.35], [84.0, 63.25], [83.47, 63.47], [83.25, 64.0], [83.35, 64.25], [83.25, 64.5], [83.47, 65.03], [84.0, 65.25], [83.75, 65.35], [83.5, 65.25], [83.25, 65.35], [83.0, 65.25], [82.75, 65.35], [82.5, 65.25], [82.25, 65.35], [82.0, 65.25], [81.75, 65.35], [81.5, 65.25], [80.97, 65.47]], [[84.25, 65.15], [84.5, 65.25], [84.25, 65.35], [84.0, 65.25], [84.25, 65.15]], [[84.75, 65.15], [84.82, 65.18], [84.85, 65.25], [84.82, 65.32], [84.75, 65.35], [84.5, 65.25], [84.75, 65.15]], [[88.68, 64.32], [88.65, 64.25], [88.68, 64.18], [88.93, 64.07], [88.82, 64.32], [88.75, 64.35], [88.68, 64.32]]]]}, "2010-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[80.97, 65.47], [80.75, 66.0], [80.97, 66.53], [81.5, 66.75], [81.75, 66.65], [82.0, 66.75], [82.25, 66.65], [82.5, 66.75], [82.75, 66.65], [83.0, 66.75], [83.25, 66.65], [83.32, 66.68], [83.35, 66.75], [83.25, 67.0], [83.47, 67.53], [83.82, 67.68], [83.85, 67.75], [83.75, 68.0], [83.97, 68.53], [84.5, 68.75], [85.03, 68.53], [85.18, 68.18], [85.25, 68.15], [85.5, 68.25], [85.75, 68.15], [86.0, 68.25], [86.53, 68.03], [86.68, 67.68], [86.75, 67.65], [86.82, 67.68], [86.85, 67.75], [86.75, 68.0], [86.97, 68.53], [87.5, 68.75], [87.75, 68.65], [88.0, 68.75], [88.25, 68.65], [88.5, 68.75], [88.75, 68.65], [89.0, 68.75], [89.53, 68.53], [89.75, 68.0], [89.65, 67.75], [89.68, 67.68], [89.75, 67.65], [90.0, 67.75], [90.25, 67.65], [90.5, 67.75], [90.75, 67.65], [91.0, 67.75], [91.25, 67.65], [91.5, 67.75], [92.03, 67.53], [92.18, 67.18], [92.25, 67.15], [92.5, 67.25], [92.75, 67.15], [93.0, 67.25], [93.25, 67.15], [93.5, 67.25], [93.75, 67.15], [94.0, 67.25], [94.25, 67.15], [94.5, 67.25], [95.03, 67.03], [95.25, 66.5], [95.15, 66.25], [95.18, 66.18], [95.25, 66.15], [95.5, 66.25], [96.03, 66.03], [96.25, 65.5], [96.15, 65.25], [96.25, 65.0], [96.03, 64.47], [95.5, 64.25], [95.0, 64.46], [94.68, 64.32], [94.53, 63.97], [94.18, 63.82], [94.03, 63.47], [93.5, 63.25], [93.25, 63.35], [93.0, 63.25], [92.75, 63.35], [92.68, 63.32], [92.53, 62.97], [92.0, 62.75], [91.75, 62.85], [91.5, 62.75], [90.97, 62.97], [90.82, 63.32], [90.75, 63.35], [90.5, 63.25], [89.97, 63.47], [89.82, 63.82], [89.75, 63.85], [89.5, 63.75], [89.07, 63.93], [89.25, 63.5], [89.03, 62.97], [88.5, 62.75], [88.25, 62.85], [88.0, 62.75], [87.75, 62.85], [87.5, 62.75], [86.97, 62.97], [86.82, 63.32], [86.47, 63.47], [86.32, 63.82], [86.25, 63.85], [86.0, 63.75], [85.75, 63.85], [85.5, 63.75], [85.25, 63.85], [85.18, 63.82], [85.03, 63.47], [84.5, 63.25], [84.25, 63.35], [84.0, 63.25], [83.47, 63.47], [83.25, 64.0], [83.47, 64.53], [84.0, 64.75], [84.25, 64.65], [84.32, 64.68], [84.47, 65.03], [84.82, 65.18], [84.85, 65.25], [84.82, 65.32], [84.75, 65.35], [84.5, 65.25], [84.25, 65.35], [84.0, 65.25], [83.75, 65.35], [83.5, 65.25], [83.25, 65.35], [83.0, 65.25], [82.75, 65.35], [82.5, 65.25], [82.25, 65.35], [82.0, 65.25], [81.75, 65.35], [81.5, 65.25], [80.97, 65.47]], [[88.68, 64.32], [88.65, 64.25], [88.68, 64.18], [88.93, 64.07], [88.82, 64.32], [88.75, 64.35], [88.68, 64.32]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -10.593537846015408}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -7.634505149589765}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.045153298902164, 7.338619341159188, 7.035660656962591, 7.764248264604646]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [8.627991375195904, 2.943354753063261, 2.8681003941531458, 3.3718337428185805]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.660123786843428, -7.532310582876542, -8.067397865042874, -7.3186869205259395]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.8687327871007255, -8.962551220388264, -10.593537846015408, -8.183731139953068]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3463670271242762, -1.6178761915435702, -1.7088127169783287, -1.5379308493102224]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3886913229849152, -1.8310647520571195, -2.1836307462343467, -1.713389216816651]}}