{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:43.722101", "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-10_to_2014-Nov-12_89.0_37.0"}, "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": 2014110000353}, "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 10 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 12 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": 64584.46458895497}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.C.Asia", "Tibetan-Plateau"]}, "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": 37.0}, "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": 89.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "89.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 84.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 89.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 35.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 37.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-11-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[84.38, 36.3], [83.97, 36.47], [83.75, 37.0], [83.97, 37.53], [84.5, 37.75], [84.75, 37.65], [85.0, 37.75], [85.25, 37.65], [85.32, 37.68], [85.47, 38.03], [86.0, 38.25], [86.25, 38.15], [86.5, 38.25], [87.03, 38.03], [87.25, 37.5], [87.15, 37.25], [87.18, 37.18], [87.3, 37.13], [87.47, 37.53], [87.82, 37.68], [87.97, 38.03], [88.5, 38.25], [89.03, 38.03], [89.18, 37.68], [89.25, 37.65], [89.5, 37.75], [90.03, 37.53], [90.25, 37.0], [90.03, 36.47], [89.5, 36.25], [89.25, 36.35], [89.18, 36.32], [89.03, 35.97], [88.5, 35.75], [88.25, 35.85], [88.18, 35.82], [88.03, 35.47], [87.5, 35.25], [87.25, 35.35], [87.18, 35.32], [87.03, 34.97], [86.5, 34.75], [86.25, 34.85], [86.0, 34.75], [85.75, 34.85], [85.5, 34.75], [85.25, 34.85], [85.0, 34.75], [84.47, 34.97], [84.25, 35.5], [84.35, 35.75], [84.25, 36.0], [84.38, 36.3]]]]}, "2014-11-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[84.38, 36.3], [83.97, 36.47], [83.75, 37.0], [83.97, 37.53], [84.5, 37.75], [84.75, 37.65], [85.0, 37.75], [85.25, 37.65], [85.32, 37.68], [85.47, 38.03], [86.0, 38.25], [86.25, 38.15], [86.5, 38.25], [87.03, 38.03], [87.25, 37.5], [87.15, 37.25], [87.18, 37.18], [87.3, 37.13], [87.47, 37.53], [87.82, 37.68], [87.97, 38.03], [88.5, 38.25], [89.03, 38.03], [89.18, 37.68], [89.25, 37.65], [89.5, 37.75], [90.03, 37.53], [90.25, 37.0], [90.03, 36.47], [89.5, 36.25], [89.25, 36.35], [89.18, 36.32], [89.03, 35.97], [88.5, 35.75], [88.25, 35.85], [88.18, 35.82], [88.03, 35.47], [87.5, 35.25], [87.25, 35.35], [87.18, 35.32], [87.03, 34.97], [86.5, 34.75], [86.25, 34.85], [86.0, 34.75], [85.75, 34.85], [85.5, 34.75], [85.25, 34.85], [85.0, 34.75], [84.47, 34.97], [84.25, 35.5], [84.35, 35.75], [84.25, 36.0], [84.38, 36.3]]]]}, "2014-11-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[84.38, 36.3], [83.97, 36.47], [83.75, 37.0], [83.97, 37.53], [84.5, 37.75], [84.75, 37.65], [85.0, 37.75], [85.25, 37.65], [85.32, 37.68], [85.47, 38.03], [86.0, 38.25], [86.25, 38.15], [86.5, 38.25], [87.03, 38.03], [87.25, 37.5], [87.15, 37.25], [87.18, 37.18], [87.3, 37.13], [87.47, 37.53], [87.82, 37.68], [87.97, 38.03], [88.5, 38.25], [89.03, 38.03], [89.18, 37.68], [89.25, 37.65], [89.5, 37.75], [90.03, 37.53], [90.25, 37.0], [90.03, 36.47], [89.5, 36.25], [89.25, 36.35], [89.18, 36.32], [89.03, 35.97], [88.5, 35.75], [88.25, 35.85], [88.18, 35.82], [88.03, 35.47], [87.5, 35.25], [87.25, 35.35], [87.18, 35.32], [87.03, 34.97], [86.5, 34.75], [86.25, 34.85], [86.0, 34.75], [85.75, 34.85], [85.5, 34.75], [85.25, 34.85], [85.0, 34.75], [84.47, 34.97], [84.25, 35.5], [84.35, 35.75], [84.25, 36.0], [84.38, 36.3]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.871340819237787}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.548509005091162}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-19.108611353832032, -19.407275762011466, -19.69959506474126]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-23.928494892271004, -23.510125551597298, -24.126538795028495]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.310402941176263, -5.610873878067712, -5.72425019602951]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.109468748479429, -7.297375532315812, -7.871340819237787]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7034403258466162, -1.74303485154762, -1.7042820010335307]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.3217817692839984, -2.330779823742635, -2.3238479794948925]}}