{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:24.174043", "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-May-20_to_2014-May-24_81.0_45.0"}, "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": 2014050000824}, "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": "May 20 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 24 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": 50116.859272689355}, "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": ["China", "Kazakhstan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.C.Asia", "W.Siberia"]}, "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": []}, "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": 45.0}, "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": 81.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "81.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 78.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 84.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 44.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 46.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-05-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[78.47, 43.97], [78.25, 44.5], [78.47, 45.03], [79.0, 45.25], 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[78.47, 43.97], [78.25, 44.5], [78.35, 44.75], [78.25, 45.0], [78.47, 45.53]]]]}, "2014-05-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[78.47, 45.53], [79.0, 45.75], [79.25, 45.65], [79.5, 45.75], [79.75, 45.65], [79.82, 45.68], [79.97, 46.03], [80.5, 46.25], [80.75, 46.15], [81.0, 46.25], [81.25, 46.15], [81.32, 46.18], [81.47, 46.53], [82.0, 46.75], [82.25, 46.65], [82.5, 46.75], [83.03, 46.53], [83.18, 46.18], [83.25, 46.15], [83.32, 46.18], [83.47, 46.53], [84.0, 46.75], [84.53, 46.53], [84.75, 46.0], [84.65, 45.75], [84.75, 45.5], [84.53, 44.97], [84.0, 44.75], [83.75, 44.85], [83.5, 44.75], [83.25, 44.85], [83.0, 44.75], [82.75, 44.85], [82.5, 44.75], [82.25, 44.85], [82.18, 44.82], [82.15, 44.75], [82.25, 44.5], [82.03, 43.97], [81.5, 43.75], [81.25, 43.85], [81.0, 43.75], [80.75, 43.85], [80.5, 43.75], [80.25, 43.85], [80.0, 43.75], [79.75, 43.85], [79.5, 43.75], [79.25, 43.85], [79.0, 43.75], [78.47, 43.97], [78.25, 44.5], [78.35, 44.75], [78.25, 45.0], 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