{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:30.224538", "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-Jan-19_to_2014-Jan-26_153.5_61.0"}, "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": 2014010000839}, "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 19 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 26 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 126113.38450981455}, "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": ["Russian Federation"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Russian-Far-East"]}, "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": ["Sea of Okhotsk"]}, "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": 61.0}, "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": 153.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "153.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 144.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 157.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 59.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 63.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-01-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[155.0, 63.25], [155.53, 63.03], [155.75, 62.5], [155.53, 61.97], [155.0, 61.75], [154.47, 61.97], [154.25, 62.5], [154.47, 63.03], [155.0, 63.25]]]]}, "2014-01-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[149.47, 62.03], [150.0, 62.25], [150.53, 62.03], [150.68, 61.68], [150.75, 61.65], [150.82, 61.68], [150.97, 62.03], [151.32, 62.18], [151.47, 62.53], [152.0, 62.75], [152.25, 62.65], [152.5, 62.75], [153.03, 62.53], [153.2, 62.13], [153.5, 62.25], [153.75, 62.15], [153.82, 62.18], [153.85, 62.25], [153.75, 62.5], [153.97, 63.03], [154.32, 63.18], [154.35, 63.25], [154.25, 63.5], [154.47, 64.03], [155.0, 64.25], [155.53, 64.03], [155.68, 63.68], [156.03, 63.53], [156.25, 63.0], [156.47, 63.53], [157.0, 63.75], [157.25, 63.65], [157.5, 63.75], [158.03, 63.53], [158.25, 63.0], [158.15, 62.75], [158.25, 62.5], [158.03, 61.97], [157.68, 61.82], [157.65, 61.75], [157.75, 61.5], [157.53, 60.97], [157.0, 60.75], [156.47, 60.97], [156.32, 61.32], [156.2, 61.38], [156.15, 61.25], [156.25, 61.0], [156.03, 60.47], [155.68, 60.32], [155.53, 59.97], [155.0, 59.75], [154.75, 59.85], [154.5, 59.75], [154.25, 59.85], [154.13, 59.8], [154.25, 59.5], [154.03, 58.97], [153.5, 58.75], [153.25, 58.85], [153.0, 58.75], [152.75, 58.85], [152.5, 58.75], [151.97, 58.97], [151.82, 59.32], [151.47, 59.47], [151.32, 59.82], [151.25, 59.85], [151.0, 59.75], [150.75, 59.85], [150.5, 59.75], [150.25, 59.85], [150.0, 59.75], [149.75, 59.85], [149.5, 59.75], [148.97, 59.97], [148.75, 60.5], [148.97, 61.03], [149.32, 61.18], [149.35, 61.25], [149.25, 61.5], [149.47, 62.03]], [[156.15, 62.75], [156.2, 62.63], [156.32, 62.68], [156.35, 62.75], [156.25, 63.0], [156.15, 62.75]]], [[[144.5, 62.75], [145.03, 62.53], [145.25, 62.0], [145.15, 61.75], [145.25, 61.5], [145.03, 60.97], [144.5, 60.75], [143.97, 60.97], [143.75, 61.5], [143.85, 61.75], [143.75, 62.0], [143.97, 62.53], [144.5, 62.75]]]]}, "2014-01-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[148.25, 60.5], [148.47, 61.03], [149.0, 61.25], [149.25, 61.15], [149.32, 61.18], [149.35, 61.25], [149.25, 61.5], [149.47, 62.03], [150.0, 62.25], [150.53, 62.03], [150.68, 61.68], [150.75, 61.65], [150.82, 61.68], [150.97, 62.03], [151.32, 62.18], [151.47, 62.53], [152.0, 62.75], [152.25, 62.65], [152.5, 62.75], [153.03, 62.53], [153.2, 62.13], [153.5, 62.25], [153.75, 62.15], [153.82, 62.18], [153.85, 62.25], [153.75, 62.5], [153.97, 63.03], [154.32, 63.18], [154.35, 63.25], [154.25, 63.5], [154.47, 64.03], [155.0, 64.25], [155.53, 64.03], [155.68, 63.68], [156.03, 63.53], [156.25, 63.0], [156.47, 63.53], [157.0, 63.75], [157.25, 63.65], [157.5, 63.75], [158.03, 63.53], [158.25, 63.0], [158.15, 62.75], [158.25, 62.5], [158.04, 62.0], [158.25, 61.5], [158.15, 61.25], [158.25, 61.0], [158.03, 60.47], [157.5, 60.25], [157.25, 60.35], [157.0, 60.25], [156.75, 60.35], [156.5, 60.25], [156.25, 60.35], [156.0, 60.25], [155.75, 60.35], [155.68, 60.32], [155.53, 59.97], [155.0, 59.75], [154.75, 59.85], [154.63, 59.8], [154.75, 59.5], [154.53, 58.97], [154.0, 58.75], [153.75, 58.85], [153.5, 58.75], [153.25, 58.85], [153.0, 58.75], [152.75, 58.85], [152.5, 58.75], [151.97, 58.97], [151.82, 59.32], [151.47, 59.47], [151.32, 59.82], [151.25, 59.85], [151.0, 59.75], [150.75, 59.85], [150.5, 59.75], [150.25, 59.85], [150.0, 59.75], [149.75, 59.85], [149.5, 59.75], [149.25, 59.85], [149.0, 59.75], [148.47, 59.97], [148.25, 60.5]], [[156.15, 62.75], [156.2, 62.63], [156.32, 62.68], [156.35, 62.75], [156.25, 63.0], [156.15, 62.75]]], [[[144.5, 62.75], [145.03, 62.53], [145.25, 62.0], [145.15, 61.75], [145.25, 61.5], [145.03, 60.97], [144.5, 60.75], [143.97, 60.97], [143.75, 61.5], [143.85, 61.75], [143.75, 62.0], [143.97, 62.53], [144.5, 62.75]]]]}, "2014-01-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.47, 61.53], [148.0, 61.75], [148.25, 61.65], [148.5, 61.75], [148.75, 61.65], [149.0, 61.75], [149.25, 61.65], [149.32, 61.68], [149.47, 62.03], [150.0, 62.25], [150.53, 62.03], [150.68, 61.68], [150.75, 61.65], [150.82, 61.68], [150.97, 62.03], [151.32, 62.18], [151.47, 62.53], [152.0, 62.75], [152.25, 62.65], [152.5, 62.75], [153.03, 62.53], [153.2, 62.13], [153.5, 62.25], [153.75, 62.15], [153.82, 62.18], [153.85, 62.25], [153.75, 62.5], [153.97, 63.03], [154.32, 63.18], [154.35, 63.25], [154.25, 63.5], [154.47, 64.03], [155.0, 64.25], [155.53, 64.03], [155.68, 63.68], [156.03, 63.53], [156.25, 63.0], [156.47, 63.53], [157.0, 63.75], [157.25, 63.65], [157.5, 63.75], [158.03, 63.53], [158.25, 63.0], [158.15, 62.75], [158.25, 62.5], [158.15, 62.25], [158.25, 62.0], [158.15, 61.75], [158.25, 61.5], [158.15, 61.25], [158.25, 61.0], [158.03, 60.47], [157.5, 60.25], [157.25, 60.35], [157.0, 60.25], [156.75, 60.35], [156.5, 60.25], [156.25, 60.35], [156.0, 60.25], [155.75, 60.35], [155.68, 60.32], [155.53, 59.97], [155.0, 59.75], [154.75, 59.85], [154.63, 59.8], [154.75, 59.5], [154.53, 58.97], [154.0, 58.75], [153.75, 58.85], [153.5, 58.75], [153.25, 58.85], [153.0, 58.75], [152.75, 58.85], [152.5, 58.75], [151.97, 58.97], [151.82, 59.32], [151.47, 59.47], [151.32, 59.82], [151.25, 59.85], [151.0, 59.75], [150.75, 59.85], [150.5, 59.75], [150.25, 59.85], [150.0, 59.75], [149.75, 59.85], [149.5, 59.75], [149.25, 59.85], [149.0, 59.75], [148.75, 59.85], [148.5, 59.75], [147.97, 59.97], [147.82, 60.32], [147.47, 60.47], [147.25, 61.0], [147.47, 61.53]], [[156.15, 62.75], [156.2, 62.63], [156.32, 62.68], [156.35, 62.75], [156.25, 63.0], [156.15, 62.75]]], [[[144.5, 62.75], [144.75, 62.65], [144.82, 62.68], [144.97, 63.03], [145.5, 63.25], [145.75, 63.15], [146.0, 63.25], [146.53, 63.03], [146.75, 62.5], [146.53, 61.97], [146.0, 61.75], [145.75, 61.85], [145.68, 61.82], [145.53, 61.47], [145.18, 61.32], [145.03, 60.97], [144.5, 60.75], [143.97, 60.97], [143.75, 61.5], [143.85, 61.75], [143.75, 62.0], [143.97, 62.53], [144.5, 62.75]]]]}, "2014-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.75, 61.0], [146.97, 61.53], [147.5, 61.75], [147.75, 61.65], [148.0, 61.75], [148.25, 61.65], [148.5, 61.75], [148.75, 61.65], [149.0, 61.75], [149.25, 61.65], [149.5, 61.75], [149.75, 61.65], [150.0, 61.75], [150.25, 61.65], [150.5, 61.75], [150.75, 61.65], [151.0, 61.75], [151.25, 61.65], [151.5, 61.75], [151.75, 61.65], [152.0, 61.75], [152.25, 61.65], [152.5, 61.75], [152.75, 61.65], [152.82, 61.68], [152.97, 62.03], [153.5, 62.25], [153.75, 62.15], [154.0, 62.25], [154.25, 62.15], [154.32, 62.18], [154.35, 62.25], [154.25, 62.5], [154.47, 63.03], [155.0, 63.25], [155.25, 63.15], [155.5, 63.25], [156.03, 63.03], [156.25, 62.5], [156.15, 62.25], [156.2, 62.13], [156.32, 62.18], [156.47, 62.53], [156.82, 62.68], [156.85, 62.75], [156.75, 63.0], [156.97, 63.53], [157.5, 63.75], [158.03, 63.53], [158.25, 63.0], [158.15, 62.75], [158.25, 62.5], [158.15, 62.25], [158.25, 62.0], [158.15, 61.75], [158.25, 61.5], [158.15, 61.25], [158.25, 61.0], [158.03, 60.47], [157.5, 60.25], [157.25, 60.35], [157.0, 60.25], [156.75, 60.35], [156.5, 60.25], [156.25, 60.35], [156.0, 60.25], [155.75, 60.35], [155.68, 60.32], [155.53, 59.97], [155.0, 59.75], [154.75, 59.85], [154.63, 59.8], [154.75, 59.5], [154.53, 58.97], [154.0, 58.75], [153.75, 58.85], [153.5, 58.75], [153.25, 58.85], [153.0, 58.75], [152.47, 58.97], [152.25, 59.5], [152.38, 59.8], [152.25, 59.85], [152.0, 59.75], [151.75, 59.85], [151.5, 59.75], [151.25, 59.85], [151.0, 59.75], [150.75, 59.85], [150.5, 59.75], [150.25, 59.85], [150.0, 59.75], [149.75, 59.85], [149.5, 59.75], [149.25, 59.85], [149.0, 59.75], [148.75, 59.85], [148.5, 59.75], [147.97, 59.97], [147.82, 60.32], [147.75, 60.35], [147.5, 60.25], [146.97, 60.47], [146.75, 61.0]]], [[[145.75, 63.15], [146.0, 63.25], [146.53, 63.03], [146.75, 62.5], [146.54, 62.0], [146.75, 61.5], [146.53, 60.97], [146.0, 60.75], [145.47, 60.97], [145.3, 61.38], [145.0, 61.25], [144.47, 61.47], [144.25, 62.0], [144.47, 62.53], [144.82, 62.68], [144.97, 63.03], [145.5, 63.25], [145.75, 63.15]]]]}, "2014-01-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[144.47, 62.53], [144.82, 62.68], [144.97, 63.03], [145.5, 63.25], [145.75, 63.15], [146.0, 63.25], [146.53, 63.03], [146.68, 62.68], [147.03, 62.53], [147.18, 62.18], [147.53, 62.03], [147.68, 61.68], [147.75, 61.65], [148.0, 61.75], [148.25, 61.65], [148.5, 61.75], [148.75, 61.65], [149.0, 61.75], [149.25, 61.65], [149.5, 61.75], [149.75, 61.65], [150.0, 61.75], [150.25, 61.65], [150.5, 61.75], [150.75, 61.65], [151.0, 61.75], [151.25, 61.65], [151.5, 61.75], [151.8, 61.63], [151.97, 62.03], [152.5, 62.25], [152.75, 62.15], [153.0, 62.25], [153.53, 62.03], [153.68, 61.68], [153.75, 61.65], [154.0, 61.75], [154.5, 61.54], [155.0, 61.75], [155.25, 61.65], [155.5, 61.75], [155.75, 61.65], [155.82, 61.68], [155.97, 62.03], [156.5, 62.25], [156.8, 62.13], [156.97, 62.53], [157.5, 62.75], [158.03, 62.53], [158.25, 62.0], [158.03, 61.47], [157.5, 61.25], [157.2, 61.38], [157.03, 60.97], [156.68, 60.82], [156.53, 60.47], [156.0, 60.25], [155.75, 60.35], [155.68, 60.32], [155.53, 59.97], [155.0, 59.75], [154.75, 59.85], [154.5, 59.75], [154.25, 59.85], [154.13, 59.8], [154.25, 59.5], [154.03, 58.97], [153.5, 58.75], [152.97, 58.97], [152.75, 59.5], [152.88, 59.8], [152.75, 59.85], [152.5, 59.75], [152.25, 59.85], [152.0, 59.75], [151.75, 59.85], [151.5, 59.75], [150.97, 59.97], [150.82, 60.32], [150.75, 60.35], [150.5, 60.25], [150.25, 60.35], [150.0, 60.25], [149.75, 60.35], [149.68, 60.32], [149.53, 59.97], [149.0, 59.75], [148.75, 59.85], [148.5, 59.75], [147.97, 59.97], [147.82, 60.32], [147.75, 60.35], [147.5, 60.25], [146.97, 60.47], [146.82, 60.82], [146.75, 60.85], [146.5, 60.75], [146.25, 60.85], [146.0, 60.75], [145.75, 60.85], [145.5, 60.75], [145.25, 60.85], [145.0, 60.75], [144.47, 60.97], [144.25, 61.5], [144.35, 61.75], [144.25, 62.0], [144.47, 62.53]]]]}, "2014-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[150.25, 61.65], [150.5, 61.75], [150.75, 61.65], [151.0, 61.75], [151.25, 61.65], [151.5, 61.75], [151.8, 61.63], [151.97, 62.03], [152.5, 62.25], [152.75, 62.15], [153.0, 62.25], [153.53, 62.03], [153.68, 61.68], [154.03, 61.53], [154.2, 61.13], [154.5, 61.25], [155.03, 61.03], [155.25, 60.5], [155.03, 59.97], [154.5, 59.75], [153.97, 59.97], [153.8, 60.38], [153.5, 60.25], [152.97, 60.47], [152.82, 60.82], [152.75, 60.85], [152.5, 60.75], [152.2, 60.88], [152.03, 60.47], [151.5, 60.25], [151.25, 60.35], [151.0, 60.25], [150.75, 60.35], [150.5, 60.25], [150.25, 60.35], [150.0, 60.25], [149.47, 60.47], [149.25, 61.0], [149.47, 61.53], [150.0, 61.75], [150.25, 61.65]]], [[[145.5, 62.54], [146.0, 62.75], [146.25, 62.65], [146.5, 62.75], [147.03, 62.53], [147.18, 62.18], [147.53, 62.03], [147.68, 61.68], [147.75, 61.65], [148.0, 61.75], [148.25, 61.65], [148.5, 61.75], [149.03, 61.53], [149.25, 61.0], [149.03, 60.47], [148.5, 60.25], [148.25, 60.35], [148.0, 60.25], [147.75, 60.35], [147.5, 60.25], [146.97, 60.47], [146.82, 60.82], [146.75, 60.85], [146.5, 60.75], [146.25, 60.85], [146.0, 60.75], [145.75, 60.85], [145.5, 60.75], [145.25, 60.85], [145.0, 60.75], [144.47, 60.97], [144.25, 61.5], [144.35, 61.75], [144.25, 62.0], [144.47, 62.53], [145.0, 62.75], [145.5, 62.54]]], [[[155.75, 61.5], [155.97, 62.03], [156.5, 62.25], [157.03, 62.03], [157.25, 61.5], [157.03, 60.97], [156.5, 60.75], [155.97, 60.97], [155.75, 61.5]]]]}, "2014-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[151.75, 61.5], [151.97, 62.03], [152.5, 62.25], [152.75, 62.15], [153.0, 62.25], [153.53, 62.03], [153.75, 61.5], [153.53, 60.97], [153.0, 60.75], [152.75, 60.85], [152.5, 60.75], [151.97, 60.97], [151.75, 61.5]]], [[[144.25, 61.5], [144.47, 62.03], [145.0, 62.25], [145.25, 62.15], [145.32, 62.18], [145.47, 62.53], [146.0, 62.75], [146.25, 62.65], [146.5, 62.75], [147.03, 62.53], [147.18, 62.18], [147.53, 62.03], [147.75, 61.5], [147.53, 60.97], [147.0, 60.75], [146.75, 60.85], [146.5, 60.75], [146.25, 60.85], [146.0, 60.75], [145.75, 60.85], [145.5, 60.75], [145.25, 60.85], [145.0, 60.75], [144.47, 60.97], [144.25, 61.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -11.91305629668173}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -9.047074608626325}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-41.26842648308818, -39.825528603620484, -38.91974235151258, -39.47332948783193, -38.21944488995399, -39.12403325450896, -40.68575631117895, -40.72382391850067]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-41.26842648308818, -45.56983522805726, -44.60432708426137, -45.09365780583434, -43.93050034999331, -44.377082848678015, -44.214695573188834, -41.73704775462045]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-8.650392121160053, -8.958965689931954, -9.091390557717489, -9.40300827253337, -8.916202159712102, -8.701656825374279, -9.153795807953355, -8.47584237363747]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.650392121160053, -11.423789885272129, -11.428209481242362, -11.862007652771723, -11.91305629668173, -11.073739274810805, -11.347121965129276, -9.500726207535934]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3307826727706664, -1.3863910577897234, -1.4159691628299076, -1.468799545146398, -1.401214196400329, -1.378756982147399, -1.492787599180738, -1.3682932992920254]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3307826727706664, -1.9683561870340236, -1.9528867682384166, -1.9577380675741134, -1.6278706130487575, -1.6855276346114176, -1.7998067877253865, -1.4928411487615187]}}