{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:31:43.719252", "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": "2022-Jul-28_to_2022-Aug-02_49.0_13.0"}, "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": 2022070001111}, "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": "July 28 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 02 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 54135.05530726042}, "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": ["Yemen"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula", "N.Eastern-Africa"]}, "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": ["Gulf of Aden"]}, "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": 13.0}, "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": 49.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "49.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 48.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 51.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 11.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 15.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[47.97, 14.03], [48.5, 14.25], [48.75, 14.15], [48.82, 14.18], 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12.47], [47.75, 13.0], [47.85, 13.25], [47.75, 13.5], [47.97, 14.03]]]]}, "2022-07-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[47.97, 14.03], [48.5, 14.25], [48.75, 14.15], [48.82, 14.18], [48.85, 14.25], [48.75, 14.5], [48.85, 14.75], [48.75, 15.0], [48.97, 15.53], [49.5, 15.75], [50.03, 15.53], [50.25, 15.0], [50.15, 14.75], [50.18, 14.68], [50.25, 14.65], [50.5, 14.75], [51.03, 14.53], [51.18, 14.18], [51.53, 14.03], [51.75, 13.5], [51.53, 12.97], [51.18, 12.82], [51.03, 12.47], [50.68, 12.32], [50.65, 12.25], [50.75, 12.0], [50.53, 11.47], [50.0, 11.25], [49.47, 11.47], [49.32, 11.82], [49.25, 11.85], [49.0, 11.75], [48.47, 11.97], [48.32, 12.32], [47.97, 12.47], [47.75, 13.0], [47.85, 13.25], [47.75, 13.5], [47.97, 14.03]]]]}, "2022-07-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[48.47, 13.53], [49.0, 13.75], [49.43, 13.57], [49.32, 13.82], [48.97, 13.97], [48.75, 14.5], [48.85, 14.75], [48.75, 15.0], [48.97, 15.53], [49.5, 15.75], 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-1.5792403370759291]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.604241673169477, -2.8548487079512075, -2.529914571534417, -2.3139237441142417, -2.1779298700667216, -1.5792403370759291]}}