{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:22.957497", "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": "2010-Aug-02_to_2010-Aug-04_147.5_62.0"}, "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": 2010080000211}, "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": "August 02 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 04 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 52927.75261538247}, "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": []}, "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": 62.0}, "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": 147.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "147.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 146.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 153.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 61.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 63.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-08-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.97, 62.53], [146.32, 62.68], [146.47, 63.03], [146.82, 63.18], [146.97, 63.53], [147.5, 63.75], [147.75, 63.65], [148.0, 63.75], [148.25, 63.65], [148.5, 63.75], [148.75, 63.65], [149.0, 63.75], [149.25, 63.65], [149.5, 63.75], [149.75, 63.65], [150.0, 63.75], [150.25, 63.65], [150.5, 63.75], [150.75, 63.65], [151.0, 63.75], [151.25, 63.65], [151.5, 63.75], [151.75, 63.65], [152.0, 63.75], [152.25, 63.65], [152.5, 63.75], [152.75, 63.65], [153.0, 63.75], [153.53, 63.53], [153.75, 63.0], [153.53, 62.47], [153.18, 62.32], [153.03, 61.97], [152.5, 61.75], [152.25, 61.85], [152.0, 61.75], [151.75, 61.85], [151.5, 61.75], [151.25, 61.85], [151.18, 61.82], [151.03, 61.47], [150.5, 61.25], [150.25, 61.35], [150.0, 61.25], [149.75, 61.35], [149.5, 61.25], [149.25, 61.35], [149.0, 61.25], [148.75, 61.35], [148.68, 61.32], [148.53, 60.97], [148.0, 60.75], [147.75, 60.85], [147.5, 60.75], [147.25, 60.85], [147.0, 60.75], [146.75, 60.85], [146.5, 60.75], [145.97, 60.97], [145.75, 61.5], [145.85, 61.75], [145.75, 62.0], [145.97, 62.53]]]]}, "2010-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.97, 62.53], [146.32, 62.68], [146.47, 63.03], [146.82, 63.18], [146.97, 63.53], [147.5, 63.75], [147.75, 63.65], [148.0, 63.75], [148.25, 63.65], [148.5, 63.75], [148.75, 63.65], [149.0, 63.75], [149.25, 63.65], [149.5, 63.75], [149.75, 63.65], [150.0, 63.75], [150.25, 63.65], [150.5, 63.75], [150.75, 63.65], [151.0, 63.75], [151.25, 63.65], [151.5, 63.75], [151.75, 63.65], [152.0, 63.75], [152.25, 63.65], [152.5, 63.75], [152.75, 63.65], [153.0, 63.75], [153.53, 63.53], [153.75, 63.0], [153.53, 62.47], [153.18, 62.32], [153.03, 61.97], [152.5, 61.75], [152.25, 61.85], [152.0, 61.75], [151.75, 61.85], [151.5, 61.75], [151.25, 61.85], [151.18, 61.82], [151.03, 61.47], [150.5, 61.25], [150.25, 61.35], [150.0, 61.25], [149.75, 61.35], [149.5, 61.25], [149.25, 61.35], [149.0, 61.25], [148.75, 61.35], [148.68, 61.32], [148.53, 60.97], [148.0, 60.75], [147.75, 60.85], [147.5, 60.75], [147.25, 60.85], [147.0, 60.75], [146.75, 60.85], [146.5, 60.75], [145.97, 60.97], [145.75, 61.5], [145.85, 61.75], [145.75, 62.0], [145.97, 62.53]]]]}, "2010-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.97, 62.53], [146.32, 62.68], [146.47, 63.03], [146.82, 63.18], [146.97, 63.53], [147.5, 63.75], [147.75, 63.65], [148.0, 63.75], [148.25, 63.65], [148.5, 63.75], [148.75, 63.65], [149.0, 63.75], [149.25, 63.65], [149.5, 63.75], [149.75, 63.65], [150.0, 63.75], [150.25, 63.65], [150.5, 63.75], [150.75, 63.65], [151.0, 63.75], [151.25, 63.65], [151.5, 63.75], [151.75, 63.65], [152.0, 63.75], [152.25, 63.65], [152.5, 63.75], [152.75, 63.65], [153.0, 63.75], [153.53, 63.53], [153.75, 63.0], [153.53, 62.47], [153.18, 62.32], [153.03, 61.97], [152.5, 61.75], [152.25, 61.85], [152.0, 61.75], [151.75, 61.85], [151.5, 61.75], [151.25, 61.85], [151.18, 61.82], [151.03, 61.47], [150.5, 61.25], [150.25, 61.35], [150.0, 61.25], [149.75, 61.35], [149.5, 61.25], [149.25, 61.35], [149.0, 61.25], 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anomalies.", "value": [-6.211101876634551, -8.51753755744215, -5.43990944815304]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.587066596687237, -9.569582883583507, -6.028573504815199]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5981272897335732, -2.3284262657725874, -1.5489015526948728]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7961793680244202, -2.4472065235867966, -1.7720946906728137]}}