{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:27.579417", "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-Jan-07_to_2014-Jan-09_50.5_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": 2014010000406}, "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": "January 07 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 09 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": 78297.26924742105}, "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": ["Bahrain", "Qatar", "Saudi Arabia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula"]}, "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": ["Persian Gulf"]}, "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": 50.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "50.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 47.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 51.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 23.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 26.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-01-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.97, 27.03], [47.5, 27.25], [48.0, 27.04], [48.5, 27.25], [49.03, 27.03], [49.25, 26.5], [49.15, 26.25], [49.18, 26.18], [49.25, 26.15], [49.5, 26.25], [49.75, 26.15], [49.82, 26.18], [49.97, 26.53], [50.5, 26.75], [50.75, 26.65], [51.0, 26.75], [51.53, 26.53], [51.68, 26.18], [52.03, 26.03], [52.25, 25.5], [52.15, 25.25], [52.25, 25.0], [52.03, 24.47], [51.68, 24.32], [51.54, 24.0], [51.75, 23.5], [51.53, 22.97], [51.0, 22.75], [50.47, 22.97], [50.32, 23.32], [49.97, 23.47], [49.75, 24.0], [49.85, 24.25], [49.82, 24.32], [49.75, 24.35], [49.68, 24.32], [49.53, 23.97], [49.18, 23.82], [49.03, 23.47], [48.5, 23.25], [47.97, 23.47], [47.75, 24.0], [47.85, 24.25], [47.75, 24.5], [47.85, 24.75], [47.82, 24.82], [47.47, 24.97], [47.32, 25.32], [46.97, 25.47], [46.75, 26.0], [46.85, 26.25], [46.75, 26.5], [46.97, 27.03]]]]}, "2014-01-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.97, 27.03], [47.5, 27.25], [48.0, 27.04], [48.5, 27.25], [49.03, 27.03], [49.25, 26.5], [49.15, 26.25], [49.18, 26.18], [49.25, 26.15], [49.5, 26.25], [49.75, 26.15], [49.82, 26.18], [49.97, 26.53], [50.5, 26.75], [50.75, 26.65], [51.0, 26.75], [51.53, 26.53], [51.68, 26.18], [52.03, 26.03], [52.25, 25.5], [52.15, 25.25], [52.25, 25.0], [52.03, 24.47], [51.68, 24.32], [51.54, 24.0], [51.75, 23.5], [51.53, 22.97], [51.0, 22.75], [50.47, 22.97], [50.32, 23.32], [49.97, 23.47], [49.75, 24.0], [49.85, 24.25], [49.82, 24.32], [49.75, 24.35], [49.68, 24.32], [49.53, 23.97], [49.18, 23.82], [49.03, 23.47], [48.5, 23.25], [47.97, 23.47], [47.75, 24.0], [47.85, 24.25], [47.75, 24.5], [47.85, 24.75], [47.82, 24.82], [47.47, 24.97], [47.32, 25.32], [46.97, 25.47], [46.75, 26.0], [46.85, 26.25], [46.75, 26.5], [46.97, 27.03]]]]}, "2014-01-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.97, 27.03], [47.5, 27.25], [48.0, 27.04], [48.5, 27.25], [49.03, 27.03], [49.25, 26.5], [49.15, 26.25], [49.18, 26.18], [49.25, 26.15], [49.5, 26.25], [49.75, 26.15], [49.82, 26.18], [49.97, 26.53], [50.5, 26.75], [50.75, 26.65], [51.0, 26.75], [51.53, 26.53], [51.68, 26.18], [52.03, 26.03], [52.25, 25.5], [52.15, 25.25], [52.25, 25.0], [52.03, 24.47], [51.68, 24.32], [51.54, 24.0], [51.75, 23.5], [51.53, 22.97], [51.0, 22.75], [50.47, 22.97], [50.32, 23.32], [49.97, 23.47], [49.75, 24.0], [49.85, 24.25], [49.82, 24.32], [49.75, 24.35], [49.68, 24.32], [49.53, 23.97], [49.18, 23.82], [49.03, 23.47], [48.5, 23.25], [47.97, 23.47], [47.75, 24.0], [47.85, 24.25], [47.75, 24.5], [47.85, 24.75], [47.82, 24.82], [47.47, 24.97], [47.32, 25.32], [46.97, 25.47], [46.75, 26.0], [46.85, 26.25], [46.75, 26.5], [46.97, 27.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.593430259172294}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.418438274208081}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.365545334909712, 10.830000655987988, 11.188490531459763]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.009710461501811, 8.875798679818843, 8.605036613406526]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.2965647784996275, -4.735435115097234, -4.223314929027383]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.94109254236497, -5.593430259172294, -5.405832826782557]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5517587217703153, -1.712071427657282, -1.492144840859657]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0750970758137215, -1.9265744148593318, -1.7372729580244586]}}