{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:25.659284", "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-May-31_to_2014-Jun-04_145.5_-67.5"}, "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": 2014050001113}, "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": "May 31 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 04 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 103504.83202886532}, "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": ["Antarctica"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Antarctica"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Antarctica"]}, "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": ["Southern Ocean"]}, "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": -67.5}, "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": 145.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "145.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 131.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 147.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -68.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -66.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-05-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.5, -66.25], [145.75, -66.35], [146.0, -66.25], [146.25, -66.35], [146.5, -66.25], [147.03, -66.47], [147.25, -67.0], [147.03, -67.53], [146.5, -67.75], [146.25, -67.65], [146.18, -67.68], [146.03, -68.03], [145.5, -68.25], [145.25, -68.15], [145.0, -68.25], [144.47, -68.03], [144.25, -67.5], [144.47, -66.97], [144.82, -66.82], [144.97, -66.47], [145.5, -66.25]]]]}, "2014-06-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.75, -67.5], [143.97, -66.97], [144.5, -66.75], [144.75, -66.85], [144.82, -66.82], [144.97, -66.47], [145.5, -66.25], [145.75, -66.35], [146.0, -66.25], [146.25, -66.35], [146.5, -66.25], [147.03, -66.47], [147.25, -67.0], [147.03, -67.53], [146.68, -67.68], [146.53, -68.03], [146.0, -68.25], [145.75, -68.15], [145.5, -68.25], [145.25, -68.15], [145.0, -68.25], [144.75, -68.15], [144.5, -68.25], [143.97, -68.03], [143.75, -67.5]]], [[[141.97, -67.53], [141.75, -67.0], [141.97, -66.47], [142.5, -66.25], [143.03, -66.47], [143.25, -67.0], [143.03, -67.53], [142.5, -67.75], [141.97, -67.53]]]]}, "2014-06-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.97, -69.03], [130.75, -68.5], [130.97, -67.97], [131.5, -67.75], [131.75, -67.85], [132.0, -67.75], [132.25, -67.85], [132.32, -67.82], [132.47, -67.47], [132.82, -67.32], [132.85, -67.25], [132.75, -67.0], [132.97, -66.47], [133.32, -66.32], [133.47, -65.97], [134.0, -65.75], [134.25, -65.85], [134.5, -65.75], [134.75, -65.85], [135.0, -65.75], [135.25, -65.85], [135.5, -65.75], [135.75, -65.85], [136.0, -65.75], [136.25, -65.85], [136.5, -65.75], [136.75, -65.85], [137.0, -65.75], [137.25, -65.85], [137.5, -65.75], [137.75, -65.85], [138.0, -65.75], [138.25, -65.85], [138.5, -65.75], [138.75, -65.85], [139.0, -65.75], [139.25, -65.85], [139.5, -65.75], [139.75, -65.85], [140.0, -65.75], [140.25, -65.85], [140.5, -65.75], [140.75, -65.85], [141.0, -65.75], [141.53, -65.97], [141.68, -66.32], [141.75, -66.35], [142.0, -66.25], [142.25, -66.35], [142.5, -66.25], [142.75, -66.35], [143.0, -66.25], [143.25, -66.35], [143.5, -66.25], [143.75, -66.35], [144.0, -66.25], [144.53, -66.47], [144.68, -66.82], [144.75, -66.85], [144.82, -66.82], [144.97, -66.47], [145.5, -66.25], [145.75, -66.35], [146.0, -66.25], [146.25, -66.35], [146.5, -66.25], [146.75, -66.35], [147.0, -66.25], [147.53, -66.47], [147.75, -67.0], [147.53, -67.53], [147.0, -67.75], [146.75, -67.65], [146.68, -67.68], [146.53, -68.03], [146.0, -68.25], [145.75, -68.15], [145.68, -68.18], [145.53, -68.53], [145.0, -68.75], [144.47, -68.53], [144.32, -68.18], [143.97, -68.03], [143.82, -67.68], [143.75, -67.65], [143.5, -67.75], [143.25, -67.65], [143.0, -67.75], [142.75, -67.65], [142.5, -67.75], [142.25, -67.65], [142.18, -67.68], [142.03, -68.03], [141.68, -68.18], [141.53, -68.53], [141.0, -68.75], [140.75, -68.65], [140.5, -68.75], [140.25, -68.65], [140.0, -68.75], [139.75, -68.65], [139.5, -68.75], [139.25, -68.65], [139.0, -68.75], [138.75, -68.65], [138.5, -68.75], [138.25, -68.65], [138.0, -68.75], [137.75, -68.65], [137.5, -68.75], [137.25, -68.65], [137.0, -68.75], [136.75, -68.65], [136.5, -68.75], [136.25, -68.65], [136.0, -68.75], [135.75, -68.65], [135.5, -68.75], [135.25, -68.65], [135.18, -68.68], [135.03, -69.03], [134.5, -69.25], [134.25, -69.15], [134.0, -69.25], [133.75, -69.15], [133.5, -69.25], [133.25, -69.15], [133.0, -69.25], [132.75, -69.15], [132.5, -69.25], [132.25, -69.15], [132.0, -69.25], [131.75, -69.15], [131.5, -69.25], [130.97, -69.03]]]]}, "2014-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.97, -69.03], [130.75, -68.5], [130.97, -67.97], [131.5, -67.75], [131.75, -67.85], [132.0, -67.75], [132.25, -67.85], [132.32, -67.82], [132.47, -67.47], [132.82, -67.32], [132.85, -67.25], [132.75, -67.0], [132.97, -66.47], [133.32, -66.32], [133.47, -65.97], [134.0, -65.75], [134.25, -65.85], [134.5, -65.75], [134.75, -65.85], [135.0, -65.75], [135.25, -65.85], [135.5, -65.75], [135.75, -65.85], [136.0, -65.75], [136.25, -65.85], [136.5, -65.75], [136.75, -65.85], [137.0, -65.75], [137.25, -65.85], [137.5, -65.75], [137.75, -65.85], [138.0, -65.75], [138.25, -65.85], [138.5, -65.75], [138.75, -65.85], [139.0, -65.75], [139.25, -65.85], [139.5, -65.75], [139.75, -65.85], [140.0, -65.75], [140.25, -65.85], [140.5, -65.75], [140.75, -65.85], [141.0, -65.75], [141.53, -65.97], [141.68, -66.32], [141.75, -66.35], [142.0, -66.25], [142.25, -66.35], [142.5, -66.25], [142.75, -66.35], [143.0, -66.25], [143.25, -66.35], [143.5, -66.25], [143.75, -66.35], [144.0, -66.25], [144.53, -66.47], [144.68, -66.82], [144.75, -66.85], [144.82, -66.82], [144.97, -66.47], [145.5, -66.25], [145.75, -66.35], [146.0, -66.25], [146.25, -66.35], [146.5, -66.25], [146.75, -66.35], [147.0, -66.25], [147.53, -66.47], [147.75, -67.0], [147.53, -67.53], [147.0, -67.75], [146.75, -67.65], [146.68, -67.68], [146.53, -68.03], [146.0, -68.25], [145.75, -68.15], [145.68, -68.18], [145.53, -68.53], [145.0, -68.75], [144.47, -68.53], [144.32, -68.18], [143.97, -68.03], [143.82, -67.68], [143.75, -67.65], [143.5, -67.75], [143.25, -67.65], [143.0, -67.75], [142.75, -67.65], [142.5, -67.75], [142.25, -67.65], [142.18, -67.68], [142.03, -68.03], [141.68, -68.18], [141.53, -68.53], [141.0, -68.75], [140.75, -68.65], [140.5, -68.75], [140.25, -68.65], [140.0, -68.75], [139.75, -68.65], [139.5, -68.75], [139.25, -68.65], [139.0, -68.75], [138.75, -68.65], [138.5, -68.75], [138.25, -68.65], [138.0, -68.75], [137.75, -68.65], [137.5, -68.75], [137.25, -68.65], [137.0, -68.75], [136.75, -68.65], [136.5, -68.75], [136.25, -68.65], [136.0, -68.75], [135.75, -68.65], [135.5, -68.75], [135.25, -68.65], [135.18, -68.68], [135.03, -69.03], [134.5, -69.25], [134.25, -69.15], [134.0, -69.25], [133.75, -69.15], [133.5, -69.25], [133.25, -69.15], [133.0, -69.25], [132.75, -69.15], [132.5, -69.25], [132.25, -69.15], [132.0, -69.25], [131.75, -69.15], [131.5, -69.25], [130.97, -69.03]]]]}, "2014-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.97, -69.03], [130.75, -68.5], [130.97, -67.97], [131.5, -67.75], [131.75, -67.85], [132.0, -67.75], [132.25, -67.85], [132.32, -67.82], [132.47, -67.47], [132.82, -67.32], [132.85, -67.25], [132.75, -67.0], [132.97, -66.47], [133.32, -66.32], [133.47, -65.97], [134.0, -65.75], [134.25, -65.85], [134.5, -65.75], [134.75, -65.85], [135.0, -65.75], [135.25, -65.85], [135.5, -65.75], [135.75, -65.85], [136.0, -65.75], [136.25, -65.85], [136.5, -65.75], [136.75, -65.85], [137.0, -65.75], [137.25, -65.85], [137.5, -65.75], [137.75, -65.85], [138.0, -65.75], [138.25, -65.85], [138.5, -65.75], [138.75, -65.85], [139.0, -65.75], [139.25, -65.85], [139.5, -65.75], [139.75, -65.85], [140.0, -65.75], [140.25, -65.85], [140.5, -65.75], [140.75, -65.85], [141.0, -65.75], [141.53, -65.97], [141.68, -66.32], [141.75, -66.35], [142.0, -66.25], [142.25, -66.35], [142.5, -66.25], [142.75, -66.35], [143.0, -66.25], [143.25, -66.35], [143.5, -66.25], [143.75, -66.35], [144.0, -66.25], [144.53, -66.47], [144.68, -66.82], [144.75, -66.85], [144.82, -66.82], [144.97, -66.47], [145.5, -66.25], [145.75, -66.35], [146.0, -66.25], [146.25, -66.35], [146.5, -66.25], [146.75, -66.35], [147.0, -66.25], [147.53, -66.47], [147.75, -67.0], [147.53, -67.53], [147.0, -67.75], [146.75, -67.65], [146.68, -67.68], [146.53, -68.03], [146.0, -68.25], [145.75, -68.15], [145.68, -68.18], [145.53, -68.53], [145.0, -68.75], [144.47, -68.53], [144.32, -68.18], [143.97, -68.03], [143.82, -67.68], [143.75, -67.65], [143.5, -67.75], [143.25, -67.65], [143.0, -67.75], [142.75, -67.65], [142.5, -67.75], [142.25, -67.65], [142.18, -67.68], [142.03, -68.03], [141.68, -68.18], [141.53, -68.53], [141.0, -68.75], [140.75, -68.65], [140.5, -68.75], [140.25, -68.65], [140.0, -68.75], [139.75, -68.65], [139.5, -68.75], [139.25, -68.65], [139.0, -68.75], [138.75, -68.65], [138.5, -68.75], [138.25, -68.65], [138.0, -68.75], [137.75, -68.65], [137.5, -68.75], [137.25, -68.65], [137.0, -68.75], [136.75, -68.65], [136.5, -68.75], [136.25, -68.65], [136.0, -68.75], [135.75, -68.65], [135.5, -68.75], [135.25, -68.65], [135.18, -68.68], [135.03, -69.03], [134.5, -69.25], [134.25, -69.15], [134.0, -69.25], [133.75, -69.15], [133.5, -69.25], [133.25, -69.15], [133.0, -69.25], [132.75, -69.15], [132.5, -69.25], [132.25, -69.15], [132.0, -69.25], [131.75, -69.15], [131.5, -69.25], [130.97, -69.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -12.928291369185558}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -8.64620538898464}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-28.381535283586146, -28.966812587439534, -36.23071029982043, -35.09595063804548, -35.44454402012809]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-30.35605371711449, -32.62114775803289, -48.1623625185581, -47.568725625858036, -48.835556551389715]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-7.790828212120777, -8.132964991495069, -9.107338037756358, -8.21746162985415, -8.710170626518547]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.641328846835819, -10.06695724516959, -12.928291369185558, -11.272211542036132, -11.38087882124509]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4642505742433525, -1.5683158980807121, -1.7932666327505706, -1.5828355101866596, -1.6798778491601993]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.614188016023117, -1.8040130303896718, -2.5393051945722953, -2.189746002206067, -2.1896626619783675]}}