{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:04.837557", "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-Aug-18_to_2014-Aug-21_22.5_30.5"}, "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": 2014080000856}, "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": "August 18 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 21 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 74588.74154053151}, "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": ["Libya"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean", "Sahara"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": 30.5}, "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": 22.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "22.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 20.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 24.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 27.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 32.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[24.0, 31.75], [24.53, 31.53], [24.68, 31.18], [25.03, 31.03], 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28.47], [22.68, 28.32], [22.65, 28.25], [22.75, 28.0], [22.53, 27.47], [22.0, 27.25], [21.47, 27.47], [21.25, 28.0], [21.35, 28.25], [21.25, 28.5], [21.35, 28.75], [21.32, 28.82], [21.25, 28.85], [21.0, 28.75], [20.47, 28.97], [20.25, 29.5], [20.35, 29.75], [20.25, 30.0], [20.47, 30.53]]]]}, "2014-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.47, 30.53], [20.82, 30.68], [20.85, 30.75], [20.75, 31.0], [20.97, 31.53], [21.5, 31.75], [21.75, 31.65], [21.82, 31.68], [21.85, 31.75], [21.75, 32.0], [21.85, 32.25], [21.75, 32.5], [21.97, 33.03], [22.5, 33.25], [23.03, 33.03], [23.18, 32.68], [23.53, 32.53], [23.68, 32.18], [23.75, 32.15], [24.0, 32.25], [24.53, 32.03], [24.75, 31.5], [24.65, 31.25], [24.68, 31.18], [25.03, 31.03], [25.25, 30.5], [25.03, 29.97], [24.5, 29.75], [24.25, 29.85], [24.0, 29.75], [23.5, 29.96], [23.0, 29.75], [22.75, 29.85], [22.68, 29.82], [22.65, 29.75], [22.68, 29.68], [23.03, 29.53], [23.25, 29.0], [23.03, 28.47], [22.68, 28.32], 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