{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:09.723150", "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": "2012-Apr-13_to_2012-Apr-20_289.0_19.0"}, "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": 2012040000796}, "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": "April 13 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 20 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 61417.006728641456}, "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": ["Dominican Republic", "Haiti"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Caribbean"]}, "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", "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": 19.0}, "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": 289.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "289.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 284.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 290.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 17.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 20.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-04-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-71.5, 20.75], [-70.97, 20.53], [-70.75, 20.0], [-70.97, 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[-72.0, 17.75], [-72.53, 17.97], [-72.68, 18.32], [-73.03, 18.47], [-73.25, 19.0]]]]}, "2012-04-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-73.25, 19.0], [-73.03, 19.53], [-72.5, 19.75], [-72.25, 19.65], [-72.18, 19.68], [-72.03, 20.03], [-71.5, 20.25], [-71.25, 20.15], [-71.0, 20.25], [-70.75, 20.15], [-70.5, 20.25], [-69.97, 20.03], [-69.82, 19.68], [-69.47, 19.53], [-69.25, 19.0], [-69.47, 18.47], [-70.0, 18.25], [-70.25, 18.35], [-70.5, 18.25], [-70.75, 18.35], [-71.0, 18.25], [-71.25, 18.35], [-71.32, 18.32], [-71.47, 17.97], [-72.0, 17.75], [-72.53, 17.97], [-72.68, 18.32], [-73.03, 18.47], [-73.25, 19.0]]]]}, "2012-04-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-75.03, 17.97], [-75.25, 18.5], [-75.03, 19.03], [-74.5, 19.25], [-74.0, 19.04], [-73.5, 19.25], [-73.25, 19.15], [-73.18, 19.18], [-73.03, 19.53], [-72.68, 19.68], [-72.53, 20.03], [-72.0, 20.25], [-71.75, 20.15], [-71.5, 20.25], [-71.25, 20.15], [-71.0, 20.25], [-70.75, 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"value": [-1.5321653681193121, -1.636583653667879, -3.0380142940845527, -2.539943012887611, -1.9609186081385266, -2.250938973597452, -1.7652796625730982, -1.6141799439724374]}}