{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:36.417699", "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-Jun-11_to_2014-Jun-15_279.0_29.0"}, "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": 2014060000457}, "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": "June 11 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 15 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": 76225.47854036406}, "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": ["United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.North-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": ["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": 29.0}, "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": 279.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "279.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 274.75}, "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": 27.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 29.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-06-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.15, 28.75], [-83.25, 29.0], [-83.03, 29.53], [-82.5, 29.75], [-82.25, 29.65], [-82.0, 29.75], [-81.75, 29.65], [-81.5, 29.75], [-81.25, 29.65], [-81.0, 29.75], [-80.47, 29.53], [-80.25, 29.0], [-80.35, 28.75], [-80.25, 28.5], [-80.35, 28.25], [-80.25, 28.0], [-80.47, 27.47], [-81.0, 27.25], [-81.25, 27.35], [-81.5, 27.25], [-82.0, 27.46], [-82.5, 27.25], [-83.03, 27.47], [-83.25, 28.0], [-83.15, 28.25], [-83.25, 28.5], [-83.15, 28.75]]]]}, "2014-06-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-85.25, 28.5], [-85.15, 28.75], [-85.25, 29.0], [-85.03, 29.53], [-84.5, 29.75], [-84.25, 29.65], [-84.0, 29.75], [-83.47, 29.53], [-83.32, 29.18], [-83.25, 29.15], [-83.18, 29.18], [-83.03, 29.53], [-82.5, 29.75], [-82.25, 29.65], [-82.0, 29.75], [-81.75, 29.65], [-81.5, 29.75], [-81.25, 29.65], [-81.0, 29.75], [-80.47, 29.53], [-80.25, 29.0], [-80.35, 28.75], [-80.32, 28.68], [-79.97, 28.53], [-79.75, 28.0], [-79.85, 27.75], [-79.75, 27.5], [-79.97, 26.97], [-80.5, 26.75], [-81.03, 26.97], [-81.18, 27.32], [-81.25, 27.35], [-81.5, 27.25], [-81.75, 27.35], [-82.0, 27.25], [-82.25, 27.35], [-82.5, 27.25], [-82.75, 27.35], [-82.82, 27.32], [-82.97, 26.97], [-83.5, 26.75], [-83.75, 26.85], [-84.0, 26.75], [-84.25, 26.85], [-84.5, 26.75], [-84.75, 26.85], [-85.0, 26.75], [-85.53, 26.97], [-85.75, 27.5], [-85.53, 28.03], [-85.18, 28.18], [-85.15, 28.25], [-85.25, 28.5]]]]}, "2014-06-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-85.25, 28.5], [-85.15, 28.75], [-85.25, 29.0], [-85.03, 29.53], [-84.5, 29.75], [-84.25, 29.65], [-84.0, 29.75], [-83.47, 29.53], [-83.32, 29.18], [-83.25, 29.15], [-83.18, 29.18], [-83.03, 29.53], [-82.5, 29.75], [-82.25, 29.65], [-82.0, 29.75], [-81.75, 29.65], [-81.5, 29.75], [-81.25, 29.65], [-81.0, 29.75], [-80.47, 29.53], [-80.25, 29.0], [-80.35, 28.75], [-80.32, 28.68], [-79.97, 28.53], [-79.75, 28.0], [-79.85, 27.75], [-79.75, 27.5], [-79.97, 26.97], [-80.5, 26.75], [-81.03, 26.97], [-81.18, 27.32], [-81.25, 27.35], [-81.5, 27.25], [-81.75, 27.35], [-82.0, 27.25], [-82.25, 27.35], [-82.5, 27.25], [-82.75, 27.35], [-82.82, 27.32], [-82.97, 26.97], [-83.5, 26.75], [-83.75, 26.85], [-84.0, 26.75], [-84.25, 26.85], [-84.5, 26.75], [-84.75, 26.85], [-85.0, 26.75], [-85.53, 26.97], [-85.75, 27.5], [-85.53, 28.03], [-85.18, 28.18], [-85.15, 28.25], [-85.25, 28.5]]]]}, "2014-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-85.25, 28.5], [-85.15, 28.75], [-85.25, 29.0], [-85.03, 29.53], [-84.5, 29.75], [-84.25, 29.65], [-84.0, 29.75], [-83.47, 29.53], [-83.32, 29.18], [-83.25, 29.15], [-83.18, 29.18], [-83.03, 29.53], [-82.5, 29.75], [-82.25, 29.65], [-82.0, 29.75], [-81.75, 29.65], [-81.5, 29.75], [-81.25, 29.65], [-81.0, 29.75], [-80.47, 29.53], [-80.25, 29.0], [-80.35, 28.75], [-80.32, 28.68], [-79.97, 28.53], [-79.75, 28.0], [-79.85, 27.75], [-79.75, 27.5], [-79.97, 26.97], [-80.5, 26.75], [-81.03, 26.97], [-81.18, 27.32], [-81.25, 27.35], [-81.5, 27.25], [-81.75, 27.35], [-82.0, 27.25], [-82.25, 27.35], [-82.5, 27.25], 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