{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:02.803163", "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-Nov-10_to_2010-Nov-12_320.0_70.5"}, "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": 2010110000493}, "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 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 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": 50148.892427923536}, "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": ["Greenland"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Greenland/Iceland"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North America"]}, "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": 70.5}, "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": 320.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "320.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 319.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 325.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 69.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 71.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-11-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-41.15, 71.25], [-41.25, 71.5], [-41.03, 72.03], [-40.5, 72.25], [-40.25, 72.15], [-40.0, 72.25], [-39.75, 72.15], [-39.5, 72.25], [-39.25, 72.15], [-39.0, 72.25], [-38.75, 72.15], [-38.5, 72.25], [-38.25, 72.15], [-38.0, 72.25], [-37.75, 72.15], [-37.5, 72.25], [-37.25, 72.15], [-37.0, 72.25], [-36.75, 72.15], [-36.5, 72.25], [-36.25, 72.15], [-36.0, 72.25], [-35.75, 72.15], [-35.5, 72.25], [-35.25, 72.15], [-35.0, 72.25], [-34.47, 72.03], [-34.25, 71.5], [-34.35, 71.25], [-34.25, 71.0], [-34.47, 70.47], [-34.82, 70.32], [-34.97, 69.97], [-35.5, 69.75], [-35.75, 69.85], [-35.82, 69.82], [-35.97, 69.47], [-36.5, 69.25], [-36.75, 69.35], [-36.82, 69.32], [-36.97, 68.97], [-37.5, 68.75], [-37.75, 68.85], [-38.0, 68.75], [-38.25, 68.85], [-38.5, 68.75], [-38.75, 68.85], [-39.0, 68.75], [-39.25, 68.85], [-39.5, 68.75], [-39.75, 68.85], [-40.0, 68.75], [-40.53, 68.97], [-40.75, 69.5], [-40.65, 69.75], [-40.68, 69.82], [-41.03, 69.97], [-41.25, 70.5], [-41.15, 70.75], [-41.25, 71.0], [-41.15, 71.25]]]]}, "2010-11-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-41.15, 71.25], [-41.25, 71.5], [-41.03, 72.03], [-40.5, 72.25], [-40.25, 72.15], [-40.0, 72.25], [-39.75, 72.15], [-39.5, 72.25], [-39.25, 72.15], [-39.0, 72.25], [-38.75, 72.15], [-38.5, 72.25], [-38.25, 72.15], [-38.0, 72.25], [-37.75, 72.15], [-37.5, 72.25], [-37.25, 72.15], [-37.0, 72.25], [-36.75, 72.15], [-36.5, 72.25], [-36.25, 72.15], [-36.0, 72.25], [-35.75, 72.15], [-35.5, 72.25], [-35.25, 72.15], [-35.0, 72.25], [-34.47, 72.03], [-34.25, 71.5], [-34.35, 71.25], [-34.25, 71.0], [-34.47, 70.47], [-34.82, 70.32], [-34.97, 69.97], [-35.5, 69.75], [-35.75, 69.85], [-35.82, 69.82], [-35.97, 69.47], [-36.5, 69.25], [-36.75, 69.35], [-36.82, 69.32], [-36.97, 68.97], [-37.5, 68.75], [-37.75, 68.85], [-38.0, 68.75], [-38.25, 68.85], [-38.5, 68.75], [-38.75, 68.85], [-39.0, 68.75], [-39.25, 68.85], [-39.5, 68.75], [-39.75, 68.85], [-40.0, 68.75], [-40.53, 68.97], [-40.75, 69.5], [-40.65, 69.75], [-40.68, 69.82], [-41.03, 69.97], [-41.25, 70.5], [-41.15, 70.75], [-41.25, 71.0], [-41.15, 71.25]]]]}, "2010-11-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-41.15, 71.25], [-41.25, 71.5], [-41.03, 72.03], [-40.5, 72.25], [-40.25, 72.15], [-40.0, 72.25], [-39.75, 72.15], [-39.5, 72.25], [-39.25, 72.15], [-39.0, 72.25], [-38.75, 72.15], [-38.5, 72.25], [-38.25, 72.15], [-38.0, 72.25], [-37.75, 72.15], [-37.5, 72.25], [-37.25, 72.15], [-37.0, 72.25], [-36.75, 72.15], [-36.5, 72.25], [-36.25, 72.15], [-36.0, 72.25], [-35.75, 72.15], [-35.5, 72.25], [-35.25, 72.15], [-35.0, 72.25], [-34.47, 72.03], [-34.25, 71.5], [-34.35, 71.25], [-34.25, 71.0], [-34.47, 70.47], [-34.82, 70.32], [-34.97, 69.97], [-35.5, 69.75], [-35.75, 69.85], [-35.82, 69.82], [-35.97, 69.47], [-36.5, 69.25], [-36.75, 69.35], [-36.82, 69.32], [-36.97, 68.97], [-37.5, 68.75], [-37.75, 68.85], [-38.0, 68.75], [-38.25, 68.85], [-38.5, 68.75], [-38.75, 68.85], [-39.0, 68.75], [-39.25, 68.85], [-39.5, 68.75], [-39.75, 68.85], [-40.0, 68.75], [-40.53, 68.97], [-40.75, 69.5], [-40.65, 69.75], [-40.68, 69.82], [-41.03, 69.97], [-41.25, 70.5], [-41.15, 70.75], [-41.25, 71.0], [-41.15, 71.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -13.753280052325408}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -10.097079765616316}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-39.20009888227992, -40.691002920582775, -41.49144492645391]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-41.10440578681403, -43.455120979944155, -44.271199681189245]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-9.23640020118615, -10.391716914474175, -10.663122181188614]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-10.93795146125629, -13.120841033072082, -13.753280052325408]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.464361179251689, -1.6190834317681277, -1.62163616283307]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7011848748001102, -1.953917714151903, -1.9963916112509796]}}