{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:47.900292", "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-27_to_2014-Nov-29_278.5_25.5"}, "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": 2014110000919}, "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 27 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 29 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": 247066.31935367157}, "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": ["Cuba", "United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Caribbean", "E.North-America", "S.Central-America"]}, "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": ["Caribbean Sea", "Gulf of Mexico", "North Atlantic 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": 25.5}, "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": 278.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "278.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 273.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 279.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 19.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 27.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-11-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-87.25, 23.5], [-87.03, 24.03], [-86.5, 24.25], [-86.25, 24.15], [-86.0, 24.25], [-85.75, 24.15], [-85.68, 24.18], [-85.65, 24.25], [-85.75, 24.5], [-85.53, 25.03], [-85.0, 25.25], [-84.5, 25.04], [-84.0, 25.25], [-83.75, 25.15], [-83.5, 25.25], [-83.25, 25.15], [-83.18, 25.18], [-83.15, 25.25], [-83.25, 25.5], [-83.15, 25.75], [-83.25, 26.0], [-83.04, 26.5], [-83.25, 27.0], [-83.03, 27.53], [-82.5, 27.75], [-82.0, 27.54], [-81.5, 27.75], [-81.25, 27.65], [-81.0, 27.75], [-80.47, 27.53], [-80.25, 27.0], [-80.35, 26.75], [-80.32, 26.68], [-79.97, 26.53], [-79.75, 26.0], [-79.85, 25.75], [-79.75, 25.5], [-79.85, 25.25], [-79.75, 25.0], [-79.97, 24.47], [-80.5, 24.25], [-80.75, 24.35], [-80.82, 24.32], [-80.97, 23.97], [-81.32, 23.82], [-81.47, 23.47], [-81.82, 23.32], [-81.97, 22.97], [-82.5, 22.75], [-81.97, 22.53], [-81.75, 22.0], [-81.85, 21.75], [-81.75, 21.5], [-81.97, 20.97], [-82.32, 20.82], [-82.35, 20.75], [-82.25, 20.5], [-82.47, 19.97], [-83.0, 19.75], [-83.25, 19.85], [-83.32, 19.82], [-83.47, 19.47], [-84.0, 19.25], [-84.25, 19.35], [-84.32, 19.32], [-84.47, 18.97], [-85.0, 18.75], [-85.25, 18.85], [-85.5, 18.75], [-86.03, 18.97], [-86.25, 19.5], [-86.15, 19.75], [-86.25, 20.0], [-86.15, 20.25], [-86.25, 20.5], [-86.15, 20.75], [-86.18, 20.82], [-86.53, 20.97], [-86.75, 21.5], [-86.65, 21.75], [-86.75, 22.0], [-86.65, 22.25], [-86.75, 22.5], [-86.65, 22.75], [-86.68, 22.82], [-87.03, 22.97], [-87.25, 23.5]], [[-82.75, 22.85], [-82.82, 22.82], [-82.87, 22.7], [-82.75, 22.65], [-82.5, 22.75], [-82.75, 22.85]]]]}, "2014-11-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-87.25, 23.5], [-87.03, 24.03], [-86.5, 24.25], [-86.25, 24.15], [-86.0, 24.25], [-85.75, 24.15], [-85.68, 24.18], [-85.65, 24.25], [-85.75, 24.5], [-85.53, 25.03], [-85.0, 25.25], [-84.5, 25.04], [-84.0, 25.25], [-83.75, 25.15], [-83.5, 25.25], [-83.25, 25.15], [-83.18, 25.18], [-83.15, 25.25], [-83.25, 25.5], [-83.15, 25.75], [-83.25, 26.0], [-83.04, 26.5], [-83.25, 27.0], [-83.03, 27.53], [-82.5, 27.75], [-82.0, 27.54], [-81.5, 27.75], [-81.25, 27.65], [-81.0, 27.75], [-80.47, 27.53], [-80.25, 27.0], [-80.35, 26.75], [-80.32, 26.68], [-79.97, 26.53], [-79.75, 26.0], [-79.85, 25.75], [-79.75, 25.5], [-79.85, 25.25], [-79.75, 25.0], [-79.97, 24.47], [-80.5, 24.25], [-80.75, 24.35], [-80.82, 24.32], [-80.97, 23.97], [-81.32, 23.82], [-81.47, 23.47], [-81.82, 23.32], [-81.97, 22.97], [-82.5, 22.75], [-81.97, 22.53], [-81.75, 22.0], [-81.85, 21.75], [-81.75, 21.5], [-81.97, 20.97], [-82.32, 20.82], [-82.35, 20.75], [-82.25, 20.5], [-82.47, 19.97], [-83.0, 19.75], [-83.25, 19.85], [-83.32, 19.82], [-83.47, 19.47], [-84.0, 19.25], [-84.25, 19.35], [-84.32, 19.32], [-84.47, 18.97], [-85.0, 18.75], [-85.25, 18.85], [-85.5, 18.75], [-86.03, 18.97], [-86.25, 19.5], [-86.15, 19.75], [-86.25, 20.0], [-86.15, 20.25], [-86.25, 20.5], [-86.15, 20.75], [-86.18, 20.82], [-86.53, 20.97], [-86.75, 21.5], [-86.65, 21.75], [-86.75, 22.0], [-86.65, 22.25], [-86.75, 22.5], [-86.65, 22.75], [-86.68, 22.82], [-87.03, 22.97], [-87.25, 23.5]], [[-82.75, 22.85], [-82.82, 22.82], [-82.87, 22.7], [-82.75, 22.65], [-82.5, 22.75], [-82.75, 22.85]]]]}, "2014-11-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-87.25, 23.5], [-87.03, 24.03], [-86.5, 24.25], [-86.25, 24.15], [-86.0, 24.25], [-85.75, 24.15], [-85.68, 24.18], [-85.65, 24.25], [-85.75, 24.5], [-85.53, 25.03], [-85.0, 25.25], [-84.5, 25.04], [-84.0, 25.25], [-83.75, 25.15], [-83.5, 25.25], [-83.25, 25.15], [-83.18, 25.18], [-83.15, 25.25], [-83.25, 25.5], [-83.15, 25.75], [-83.25, 26.0], [-83.04, 26.5], [-83.25, 27.0], [-83.03, 27.53], [-82.5, 27.75], [-82.0, 27.54], [-81.5, 27.75], [-81.25, 27.65], [-81.0, 27.75], [-80.47, 27.53], [-80.25, 27.0], [-80.35, 26.75], [-80.32, 26.68], [-79.97, 26.53], [-79.75, 26.0], [-79.85, 25.75], [-79.75, 25.5], [-79.85, 25.25], [-79.75, 25.0], [-79.97, 24.47], [-80.5, 24.25], [-80.75, 24.35], [-80.82, 24.32], [-80.97, 23.97], [-81.32, 23.82], [-81.47, 23.47], [-81.82, 23.32], [-81.97, 22.97], [-82.5, 22.75], [-81.97, 22.53], [-81.75, 22.0], [-81.85, 21.75], [-81.75, 21.5], [-81.97, 20.97], [-82.32, 20.82], [-82.35, 20.75], [-82.25, 20.5], [-82.47, 19.97], [-83.0, 19.75], [-83.25, 19.85], [-83.32, 19.82], [-83.47, 19.47], [-84.0, 19.25], [-84.25, 19.35], [-84.32, 19.32], [-84.47, 18.97], [-85.0, 18.75], [-85.25, 18.85], [-85.5, 18.75], [-86.03, 18.97], [-86.25, 19.5], [-86.15, 19.75], [-86.25, 20.0], [-86.15, 20.25], [-86.25, 20.5], [-86.15, 20.75], [-86.18, 20.82], [-86.53, 20.97], [-86.75, 21.5], [-86.65, 21.75], [-86.75, 22.0], [-86.65, 22.25], [-86.75, 22.5], [-86.65, 22.75], [-86.68, 22.82], [-87.03, 22.97], [-87.25, 23.5]], [[-82.75, 22.85], [-82.82, 22.82], [-82.87, 22.7], [-82.75, 22.65], [-82.5, 22.75], [-82.75, 22.85]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.240851528822077}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.9810144842974724}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.544893880783093, 20.873174172945482, 21.471867420675494]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.238051048237196, 12.948020390881368, 14.339371381466151]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.7666305466817804, -3.4219656443652147, -2.7544472618454274]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.139762674703377, -7.240851528822077, -5.8012365613087695]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9721745449029469, -2.3867533752058923, -1.861467308532866]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.8576972734002286, -3.173311086115615, -2.4263605004414623]}}