{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:55.714201", "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-Mar-24_to_2014-Mar-26_261.5_26.0"}, "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": 2014030000969}, "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": "March 24 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 26 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": 83535.88051964155}, "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": ["Mexico", "United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.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": []}, "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": 26.0}, "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": 261.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "261.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 259.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 262.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 23.75}, "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": {"2014-03-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.15, 26.75], [-101.25, 27.0], [-101.03, 27.53], [-100.5, 27.75], [-100.25, 27.65], [-100.0, 27.75], [-99.75, 27.65], [-99.5, 27.75], [-99.25, 27.65], [-99.0, 27.75], [-98.75, 27.65], [-98.5, 27.75], [-97.97, 27.53], [-97.75, 27.0], [-97.85, 26.75], [-97.82, 26.68], [-97.47, 26.53], [-97.25, 26.0], [-97.35, 25.75], [-97.25, 25.5], [-97.46, 25.0], [-97.25, 24.5], [-97.35, 24.25], [-97.25, 24.0], [-97.47, 23.47], [-98.0, 23.25], [-98.25, 23.35], [-98.5, 23.25], [-98.75, 23.35], [-99.0, 23.25], [-99.53, 23.47], [-99.75, 24.0], [-99.65, 24.25], [-99.68, 24.32], [-100.03, 24.47], [-100.18, 24.82], [-100.53, 24.97], [-100.68, 25.32], [-101.03, 25.47], [-101.25, 26.0], [-101.15, 26.25], [-101.25, 26.5], [-101.15, 26.75]]]]}, "2014-03-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.15, 26.75], [-101.25, 27.0], [-101.03, 27.53], [-100.5, 27.75], [-100.25, 27.65], [-100.0, 27.75], [-99.75, 27.65], [-99.5, 27.75], [-99.25, 27.65], [-99.0, 27.75], [-98.75, 27.65], [-98.5, 27.75], [-97.97, 27.53], [-97.75, 27.0], [-97.85, 26.75], [-97.82, 26.68], [-97.47, 26.53], [-97.25, 26.0], [-97.35, 25.75], [-97.25, 25.5], [-97.46, 25.0], [-97.25, 24.5], [-97.35, 24.25], [-97.25, 24.0], [-97.47, 23.47], [-98.0, 23.25], [-98.25, 23.35], [-98.5, 23.25], [-98.75, 23.35], [-99.0, 23.25], [-99.53, 23.47], [-99.75, 24.0], [-99.65, 24.25], [-99.68, 24.32], [-100.03, 24.47], [-100.18, 24.82], [-100.53, 24.97], [-100.68, 25.32], [-101.03, 25.47], [-101.25, 26.0], [-101.15, 26.25], [-101.25, 26.5], [-101.15, 26.75]]]]}, "2014-03-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-101.15, 26.75], [-101.25, 27.0], [-101.03, 27.53], [-100.5, 27.75], [-100.25, 27.65], [-100.0, 27.75], [-99.75, 27.65], [-99.5, 27.75], [-99.25, 27.65], [-99.0, 27.75], [-98.75, 27.65], [-98.5, 27.75], [-97.97, 27.53], [-97.75, 27.0], [-97.85, 26.75], [-97.82, 26.68], [-97.47, 26.53], [-97.25, 26.0], [-97.35, 25.75], [-97.25, 25.5], [-97.46, 25.0], [-97.25, 24.5], [-97.35, 24.25], [-97.25, 24.0], [-97.47, 23.47], [-98.0, 23.25], [-98.25, 23.35], [-98.5, 23.25], [-98.75, 23.35], [-99.0, 23.25], [-99.53, 23.47], [-99.75, 24.0], [-99.65, 24.25], [-99.68, 24.32], [-100.03, 24.47], [-100.18, 24.82], [-100.53, 24.97], [-100.68, 25.32], [-101.03, 25.47], [-101.25, 26.0], [-101.15, 26.25], [-101.25, 26.5], [-101.15, 26.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.238103547067453}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.5939367339313675}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.092948140280157, 16.20668022986314, 17.46338777119388]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.719654203623179, 14.862109602978705, 14.077263079003046]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-7.495702561234075, -6.67913653743261, -5.606971103127413]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-9.238103547067453, -8.200014400969962, -6.968761553373611]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.2223606438085897, -1.9687922432126939, -1.6006469746067258]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.7392936470500713, -2.2959638271692984, -1.8374371926653712]}}