{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:17.069120", "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": "2013-Jan-30_to_2013-Feb-03_15.5_3.0"}, "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": 2013010000945}, "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 30 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 03 2013"}, "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": 92489.99695021869}, "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": ["Cameroon", "Central African Republic", "Congo", "Congo DRC"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa"]}, "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": 3.0}, "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": 15.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "15.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 14.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 19.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 2.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 5.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-01-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.75, 3.0], [14.97, 3.53], [15.5, 3.75], [16.03, 3.53], [16.18, 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[16.97, 2.97], [16.82, 3.32], [16.75, 3.35], [16.68, 3.32], [16.65, 3.25], [16.75, 3.0], [16.65, 2.75], [16.75, 2.5], [16.53, 1.97], [16.0, 1.75], [15.47, 1.97], [15.32, 2.32], [14.97, 2.47], [14.82, 2.82], [14.47, 2.97], [14.25, 3.5], [14.35, 3.75], [14.25, 4.0], [14.35, 4.25]]]]}, "2013-02-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.35, 4.25], [14.25, 4.5], [14.47, 5.03], [14.82, 5.18], [14.85, 5.25], [14.75, 5.5], [14.97, 6.03], [15.5, 6.25], [15.75, 6.15], [16.0, 6.25], [16.25, 6.15], [16.5, 6.25], [17.03, 6.03], [17.18, 5.68], [17.53, 5.53], [17.75, 5.0], [17.57, 4.57], [18.0, 4.75], [18.25, 4.65], [18.5, 4.75], [19.03, 4.53], [19.18, 4.18], [19.25, 4.15], [19.5, 4.25], [20.03, 4.03], [20.25, 3.5], [20.03, 2.97], [19.68, 2.82], [19.53, 2.47], [19.0, 2.25], [18.47, 2.47], [18.32, 2.82], [18.25, 2.85], [18.0, 2.75], [17.75, 2.85], [17.5, 2.75], [16.97, 2.97], [16.82, 3.32], [16.75, 3.35], [16.68, 3.32], [16.65, 3.25], [16.75, 3.0], [16.65, 2.75], [16.75, 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