{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:43.465727", "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-Nov-08_to_2014-Nov-13_80.5_41.5"}, "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": 2014110000295}, "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": "November 08 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 13 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 66577.89047016227}, "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", "Kyrgyzstan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.C.Asia", "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": 41.5}, "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": 80.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "80.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 74.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 80.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 40.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 43.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-11-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[75.97, 41.97], [75.75, 42.5], [75.97, 43.03], [76.5, 43.25], [76.75, 43.15], [77.0, 43.25], [77.25, 43.15], [77.5, 43.25], [78.03, 43.03], [78.25, 42.5], [78.03, 41.97], [77.5, 41.75], [77.25, 41.85], [77.0, 41.75], [76.75, 41.85], [76.5, 41.75], [75.97, 41.97]]]]}, "2014-11-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[73.75, 42.5], [73.97, 43.03], [74.5, 43.25], [74.75, 43.15], [75.0, 43.25], [75.53, 43.03], [75.68, 42.68], [75.75, 42.65], [75.82, 42.68], [75.97, 43.03], [76.5, 43.25], [76.75, 43.15], [76.82, 43.18], [76.97, 43.53], [77.5, 43.75], [77.75, 43.65], [78.0, 43.75], [78.53, 43.53], [78.75, 43.0], [78.65, 42.75], [78.68, 42.68], [78.75, 42.65], [78.82, 42.68], [78.97, 43.03], [79.5, 43.25], [79.75, 43.15], [80.0, 43.25], [80.53, 43.03], [80.68, 42.68], [81.03, 42.53], [81.25, 42.0], [81.03, 41.47], [80.5, 41.25], [80.25, 41.35], [80.0, 41.25], [79.7, 41.38], [79.53, 40.97], [79.18, 40.82], [79.03, 40.47], [78.5, 40.25], [77.97, 40.47], [77.82, 40.82], [77.47, 40.97], [77.3, 41.38], [77.0, 41.25], [76.75, 41.35], [76.68, 41.32], [76.53, 40.97], [76.0, 40.75], [75.75, 40.85], [75.5, 40.75], [75.25, 40.85], [75.0, 40.75], [74.47, 40.97], [74.25, 41.5], [74.35, 41.75], [74.32, 41.82], [73.97, 41.97], [73.75, 42.5]]]]}, "2014-11-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[73.75, 42.5], [73.97, 43.03], [74.5, 43.25], [74.75, 43.15], [75.0, 43.25], [75.53, 43.03], [75.68, 42.68], [75.75, 42.65], [75.82, 42.68], [75.97, 43.03], [76.5, 43.25], [76.75, 43.15], [76.82, 43.18], [76.97, 43.53], [77.5, 43.75], [77.75, 43.65], [78.0, 43.75], [78.53, 43.53], [78.75, 43.0], [78.65, 42.75], [78.68, 42.68], [78.75, 42.65], [78.82, 42.68], [78.97, 43.03], [79.5, 43.25], [79.75, 43.15], [80.0, 43.25], [80.53, 43.03], [80.68, 42.68], [81.03, 42.53], [81.25, 42.0], [81.15, 41.75], [81.25, 41.5], [81.03, 40.97], [80.5, 40.75], [80.25, 40.85], [80.0, 40.75], [79.5, 40.96], [79.18, 40.82], [79.03, 40.47], [78.5, 40.25], [77.97, 40.47], [77.82, 40.82], [77.47, 40.97], [77.3, 41.38], [77.0, 41.25], [76.75, 41.35], [76.68, 41.32], [76.53, 40.97], [76.0, 40.75], [75.75, 40.85], [75.5, 40.75], [75.25, 40.85], [75.0, 40.75], [74.47, 40.97], [74.25, 41.5], [74.35, 41.75], [74.32, 41.82], [73.97, 41.97], [73.75, 42.5]]]]}, "2014-11-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[73.75, 42.5], [73.97, 43.03], [74.5, 43.25], [74.75, 43.15], [75.0, 43.25], [75.53, 43.03], [75.68, 42.68], [75.75, 42.65], [76.0, 42.75], [76.25, 42.65], [76.5, 42.75], [76.75, 42.65], [76.88, 42.7], [76.75, 43.0], [76.97, 43.53], [77.5, 43.75], [77.75, 43.65], [78.0, 43.75], [78.53, 43.53], [78.75, 43.0], [78.65, 42.75], [78.68, 42.68], [78.75, 42.65], [78.82, 42.68], [78.97, 43.03], [79.5, 43.25], [79.75, 43.15], [80.0, 43.25], [80.53, 43.03], [80.68, 42.68], [81.03, 42.53], [81.25, 42.0], [81.15, 41.75], [81.25, 41.5], [81.03, 40.97], [80.5, 40.75], [80.25, 40.85], [80.0, 40.75], [79.5, 40.96], [79.18, 40.82], [79.03, 40.47], [78.5, 40.25], [77.97, 40.47], [77.82, 40.82], [77.47, 40.97], [77.3, 41.38], [77.0, 41.25], [76.75, 41.35], [76.68, 41.32], [76.53, 40.97], [76.0, 40.75], [75.75, 40.85], [75.5, 40.75], [75.25, 40.85], [75.0, 40.75], [74.47, 40.97], [74.25, 41.5], [74.35, 41.75], [74.32, 41.82], [73.97, 41.97], [73.75, 42.5]]]]}, "2014-11-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.47, 40.97], [79.25, 41.5], [79.47, 42.03], [80.0, 42.25], [80.25, 42.15], [80.5, 42.25], [81.03, 42.03], [81.25, 41.5], [81.03, 40.97], [80.5, 40.75], [80.25, 40.85], [80.0, 40.75], [79.47, 40.97]]]]}, "2014-11-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[80.5, 42.25], [81.03, 42.03], [81.25, 41.5], [81.03, 40.97], [80.5, 40.75], [79.97, 40.97], [79.75, 41.5], [79.97, 42.03], [80.5, 42.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.782931892320562}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.96013289803195}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [1.6234886700712536, -12.200705927911201, -12.382679340602124, -14.735738529892046, -3.5213220543410557, -2.38365496047021]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-0.30419398151656196, -22.27429839954155, -24.790962681552514, -25.671945213515897, -4.406933271974992, -2.38365496047021]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.455413565074177, -5.486330660105414, -6.0492817280425495, -6.719704023376677, -4.612834956658332, -3.6273818743986226]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.573803607704292, -7.908160208960055, -7.810445620304904, -9.782931892320562, -4.924038669227002, -3.6273818743986226]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7477482345787863, -1.6439520118661828, -1.8809262917117289, -2.0059809788853773, -1.6566101084471698, -1.304209841594139]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.139821753161198, -2.6923653990649186, -2.5240860920122605, -2.8175471437686075, -1.716964499562683, -1.304209841594139]}}