{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:09:08.724047", "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": "2017-Oct-23_to_2017-Oct-26_60.0_52.0"}, "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": 2017100000675}, "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": "October 23 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 26 2017"}, "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": 82081.17004883755}, "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": ["Kazakhstan", "Russian Federation"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Europe", "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": 52.0}, "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": 60.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "60.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 57.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 63.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 50.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 53.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-10-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[59.47, 51.47], [59.25, 52.0], [59.47, 52.53], [60.0, 52.75], 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50.25], [60.25, 50.35], [60.0, 50.25], [59.5, 50.46], [59.18, 50.32], [59.03, 49.97], [58.5, 49.75], [58.25, 49.85], [58.0, 49.75], [57.47, 49.97], [57.32, 50.32], [56.97, 50.47], [56.75, 51.0], [56.85, 51.25], [56.75, 51.5], [56.85, 51.75]]]]}, "2017-10-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[56.85, 51.75], [56.75, 52.0], [56.97, 52.53], [57.32, 52.68], [57.35, 52.75], [57.25, 53.0], [57.47, 53.53], [58.0, 53.75], [58.53, 53.53], [58.68, 53.18], [58.75, 53.15], [59.0, 53.25], [59.25, 53.15], [59.5, 53.25], [59.75, 53.15], [59.82, 53.18], [59.97, 53.53], [60.5, 53.75], [61.03, 53.53], [61.18, 53.18], [61.25, 53.15], [61.5, 53.25], [61.75, 53.15], [61.82, 53.18], [61.97, 53.53], [62.5, 53.75], [63.03, 53.53], [63.25, 53.0], [63.15, 52.75], [63.18, 52.68], [63.53, 52.53], [63.75, 52.0], [63.53, 51.47], [63.0, 51.25], [62.75, 51.35], [62.68, 51.32], [62.53, 50.97], [62.0, 50.75], [61.75, 50.85], [61.5, 50.75], [61.25, 50.85], [61.18, 50.82], [61.03, 50.47], 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