{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:24:48.484267", "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-Nov-06_to_2022-Nov-09_138.0_75.5"}, "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": 2022110001811}, "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": "November 06 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 09 2022"}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 167861.590729098}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe"]}, "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": ["Arctic Ocean", "East Siberian Sea", "Laptev Sea"]}, "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": 75.5}, "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": 138.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "138.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 136.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 154.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 74.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 79.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[138.25, 74.35], [138.0, 74.25], [137.75, 74.35], [137.5, 74.25], [137.25, 74.35], [137.0, 74.25], [136.75, 74.35], [136.5, 74.25], [136.25, 74.35], [136.0, 74.25], [135.47, 74.47], [135.25, 75.0], [135.47, 75.53], [135.82, 75.68], [135.85, 75.75], [135.75, 76.0], [135.85, 76.25], [135.82, 76.32], [135.47, 76.47], [135.25, 77.0], [135.47, 77.53], [136.0, 77.75], [136.25, 77.65], [136.5, 77.75], [136.75, 77.65], [137.0, 77.75], [137.25, 77.65], [137.5, 77.75], [137.75, 77.65], [138.0, 77.75], [138.25, 77.65], [138.5, 77.75], [138.75, 77.65], [138.88, 77.7], [138.75, 78.0], [138.97, 78.53], [139.5, 78.75], [140.0, 78.54], [140.32, 78.68], [140.47, 79.03], [141.0, 79.25], [141.25, 79.15], [141.5, 79.25], [141.75, 79.15], [142.0, 79.25], [142.25, 79.15], [142.5, 79.25], [142.75, 79.15], [142.82, 79.18], [142.97, 79.53], [143.5, 79.75], [143.75, 79.65], [144.0, 79.75], [144.25, 79.65], [144.5, 79.75], [145.0, 79.54], [145.5, 79.75], [145.75, 79.65], [146.0, 79.75], [146.25, 79.65], [146.5, 79.75], [146.75, 79.65], [147.0, 79.75], [147.25, 79.65], [147.5, 79.75], [147.75, 79.65], [148.0, 79.75], [148.25, 79.65], [148.5, 79.75], [148.75, 79.65], [149.0, 79.75], [149.25, 79.65], [149.5, 79.75], [149.75, 79.65], [150.0, 79.75], [150.25, 79.65], [150.5, 79.75], [150.75, 79.65], [151.0, 79.75], [151.25, 79.65], [151.5, 79.75], [151.75, 79.65], [152.0, 79.75], [152.25, 79.65], [152.5, 79.75], [152.75, 79.65], [153.0, 79.75], [153.25, 79.65], [153.5, 79.75], [153.75, 79.65], [154.0, 79.75], [154.53, 79.53], [154.75, 79.0], [154.54, 78.5], [154.75, 78.0], [154.65, 77.75], [154.75, 77.5], [154.53, 76.97], [154.0, 76.75], [153.75, 76.85], [153.5, 76.75], [153.25, 76.85], [153.0, 76.75], [152.75, 76.85], [152.5, 76.75], [152.25, 76.85], [152.0, 76.75], [151.47, 76.97], [151.32, 77.32], [151.25, 77.35], [151.0, 77.25], [150.75, 77.35], [150.68, 77.32], [150.53, 76.97], [150.18, 76.82], [150.15, 76.75], [150.25, 76.5], [150.03, 75.97], [149.5, 75.75], [149.25, 75.85], [149.18, 75.82], [149.15, 75.75], [149.25, 75.5], [149.04, 75.0], [149.25, 74.5], [149.03, 73.97], [148.5, 73.75], [148.25, 73.85], [148.0, 73.75], [147.75, 73.85], [147.5, 73.75], [147.25, 73.85], [147.0, 73.75], [146.75, 73.85], [146.5, 73.75], [146.25, 73.85], [146.0, 73.75], [145.75, 73.85], [145.5, 73.75], [145.25, 73.85], [145.0, 73.75], [144.75, 73.85], [144.5, 73.75], [144.25, 73.85], [144.0, 73.75], [143.75, 73.85], [143.5, 73.75], [143.25, 73.85], [143.0, 73.75], [142.75, 73.85], [142.5, 73.75], [142.25, 73.85], [142.0, 73.75], [141.47, 73.97], [141.32, 74.32], [141.25, 74.35], [141.0, 74.25], [140.75, 74.35], [140.5, 74.25], [140.25, 74.35], [140.0, 74.25], [139.75, 74.35], [139.5, 74.25], [139.25, 74.35], [139.0, 74.25], [138.75, 74.35], [138.5, 74.25], [138.25, 74.35]], [[147.68, 77.82], [147.65, 77.75], [147.68, 77.68], [147.75, 77.65], [147.88, 77.7], [147.82, 77.82], [147.75, 77.85], [147.68, 77.82]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Russian-Arctic", "Arctic-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-11-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.85, 75.75], [135.75, 76.0], [135.85, 76.25], [135.82, 76.32], [135.47, 76.47], [135.25, 77.0], [135.47, 77.53], [136.0, 77.75], [136.25, 77.65], [136.5, 77.75], [136.75, 77.65], [137.0, 77.75], [137.25, 77.65], [137.5, 77.75], [137.75, 77.65], [138.0, 77.75], [138.25, 77.65], [138.5, 77.75], [138.75, 77.65], [138.88, 77.7], [138.75, 78.0], [138.97, 78.53], [139.5, 78.75], [140.0, 78.54], [140.32, 78.68], [140.47, 79.03], [141.0, 79.25], [141.25, 79.15], [141.5, 79.25], [141.75, 79.15], [142.0, 79.25], [142.25, 79.15], [142.5, 79.25], [142.75, 79.15], [142.82, 79.18], [142.97, 79.53], [143.5, 79.75], [143.75, 79.65], [144.0, 79.75], [144.25, 79.65], [144.5, 79.75], [145.0, 79.54], [145.5, 79.75], [145.75, 79.65], [146.0, 79.75], [146.25, 79.65], [146.5, 79.75], [146.75, 79.65], [147.0, 79.75], [147.25, 79.65], [147.5, 79.75], [147.75, 79.65], [148.0, 79.75], [148.25, 79.65], [148.5, 79.75], [148.75, 79.65], [149.0, 79.75], [149.25, 79.65], [149.5, 79.75], [149.75, 79.65], [150.0, 79.75], [150.25, 79.65], [150.5, 79.75], [150.75, 79.65], [151.0, 79.75], [151.25, 79.65], [151.5, 79.75], [151.75, 79.65], [152.0, 79.75], [152.25, 79.65], [152.5, 79.75], [152.75, 79.65], [153.0, 79.75], [153.25, 79.65], [153.5, 79.75], [153.75, 79.65], [154.0, 79.75], [154.53, 79.53], [154.75, 79.0], [154.54, 78.5], [154.75, 78.0], [154.65, 77.75], [154.75, 77.5], [154.53, 76.97], [154.0, 76.75], [153.75, 76.85], [153.5, 76.75], [153.25, 76.85], [153.0, 76.75], [152.75, 76.85], [152.5, 76.75], [152.25, 76.85], [152.0, 76.75], [151.47, 76.97], [151.32, 77.32], [151.25, 77.35], [151.0, 77.25], [150.75, 77.35], [150.68, 77.32], [150.53, 76.97], [150.18, 76.82], [150.15, 76.75], [150.25, 76.5], [150.03, 75.97], [149.5, 75.75], [149.25, 75.85], [149.18, 75.82], [149.15, 75.75], [149.25, 75.5], [149.04, 75.0], [149.25, 74.5], [149.03, 73.97], [148.5, 73.75], [148.25, 73.85], [148.0, 73.75], [147.75, 73.85], [147.5, 73.75], [147.25, 73.85], [147.0, 73.75], [146.75, 73.85], [146.5, 73.75], [146.25, 73.85], [146.0, 73.75], [145.75, 73.85], [145.5, 73.75], [145.25, 73.85], [145.0, 73.75], [144.75, 73.85], [144.5, 73.75], [144.25, 73.85], [144.0, 73.75], [143.75, 73.85], [143.5, 73.75], [143.25, 73.85], [143.0, 73.75], [142.75, 73.85], [142.5, 73.75], [142.25, 73.85], [142.0, 73.75], [141.47, 73.97], [141.32, 74.32], [141.25, 74.35], [141.0, 74.25], [140.75, 74.35], [140.5, 74.25], [140.25, 74.35], [140.0, 74.25], [139.75, 74.35], [139.5, 74.25], [139.25, 74.35], [139.0, 74.25], [138.75, 74.35], [138.5, 74.25], [138.25, 74.35], [138.0, 74.25], [137.75, 74.35], [137.5, 74.25], [137.25, 74.35], [137.0, 74.25], [136.75, 74.35], [136.5, 74.25], [136.25, 74.35], [136.0, 74.25], [135.47, 74.47], [135.25, 75.0], [135.47, 75.53], [135.82, 75.68], [135.85, 75.75]], [[147.88, 77.7], [147.82, 77.82], [147.75, 77.85], [147.68, 77.82], [147.65, 77.75], [147.68, 77.68], [147.75, 77.65], [147.88, 77.7]]]]}, "2022-11-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.85, 75.75], [135.75, 76.0], [135.85, 76.25], [135.82, 76.32], [135.47, 76.47], [135.25, 77.0], [135.47, 77.53], [136.0, 77.75], [136.25, 77.65], [136.5, 77.75], [136.75, 77.65], [137.0, 77.75], [137.25, 77.65], [137.5, 77.75], [137.75, 77.65], [138.0, 77.75], [138.25, 77.65], [138.5, 77.75], [138.75, 77.65], [138.88, 77.7], [138.75, 78.0], [138.97, 78.53], [139.5, 78.75], [140.0, 78.54], [140.32, 78.68], [140.47, 79.03], [141.0, 79.25], [141.25, 79.15], [141.5, 79.25], [141.75, 79.15], [142.0, 79.25], [142.25, 79.15], [142.5, 79.25], [142.75, 79.15], [142.82, 79.18], [142.97, 79.53], [143.5, 79.75], [143.75, 79.65], [144.0, 79.75], [144.25, 79.65], [144.5, 79.75], [145.0, 79.54], [145.5, 79.75], [145.75, 79.65], [146.0, 79.75], [146.25, 79.65], [146.5, 79.75], [146.75, 79.65], [147.0, 79.75], [147.25, 79.65], [147.5, 79.75], [147.75, 79.65], [148.0, 79.75], [148.25, 79.65], [148.5, 79.75], [148.75, 79.65], [149.0, 79.75], [149.25, 79.65], [149.5, 79.75], [149.75, 79.65], [150.0, 79.75], [150.25, 79.65], [150.5, 79.75], [150.75, 79.65], [151.0, 79.75], [151.25, 79.65], [151.5, 79.75], [151.75, 79.65], [152.0, 79.75], [152.25, 79.65], [152.5, 79.75], [152.75, 79.65], [153.0, 79.75], [153.25, 79.65], [153.5, 79.75], [153.75, 79.65], [154.0, 79.75], [154.53, 79.53], [154.75, 79.0], [154.54, 78.5], [154.75, 78.0], [154.65, 77.75], [154.75, 77.5], [154.53, 76.97], [154.0, 76.75], [153.75, 76.85], [153.5, 76.75], [153.25, 76.85], [153.0, 76.75], [152.75, 76.85], [152.5, 76.75], [152.25, 76.85], [152.0, 76.75], [151.47, 76.97], [151.32, 77.32], [151.25, 77.35], [151.0, 77.25], [150.75, 77.35], [150.68, 77.32], [150.53, 76.97], [150.18, 76.82], [150.15, 76.75], [150.25, 76.5], [150.03, 75.97], [149.5, 75.75], [149.25, 75.85], [149.18, 75.82], [149.15, 75.75], [149.25, 75.5], [149.04, 75.0], [149.25, 74.5], [149.03, 73.97], [148.5, 73.75], [148.25, 73.85], [148.0, 73.75], [147.75, 73.85], [147.5, 73.75], [147.25, 73.85], [147.0, 73.75], [146.75, 73.85], [146.5, 73.75], [146.25, 73.85], [146.0, 73.75], [145.75, 73.85], [145.5, 73.75], [145.25, 73.85], [145.0, 73.75], [144.75, 73.85], [144.5, 73.75], [144.25, 73.85], [144.0, 73.75], [143.75, 73.85], [143.5, 73.75], [143.25, 73.85], [143.0, 73.75], [142.75, 73.85], [142.5, 73.75], [142.25, 73.85], [142.0, 73.75], [141.47, 73.97], [141.32, 74.32], [141.25, 74.35], [141.0, 74.25], [140.75, 74.35], [140.5, 74.25], [140.25, 74.35], [140.0, 74.25], [139.75, 74.35], [139.5, 74.25], [139.25, 74.35], [139.0, 74.25], [138.75, 74.35], [138.5, 74.25], [138.25, 74.35], [138.0, 74.25], [137.75, 74.35], [137.5, 74.25], [137.25, 74.35], [137.0, 74.25], [136.75, 74.35], [136.5, 74.25], [136.25, 74.35], [136.0, 74.25], [135.47, 74.47], [135.25, 75.0], [135.47, 75.53], [135.82, 75.68], [135.85, 75.75]], [[147.88, 77.7], [147.82, 77.82], [147.75, 77.85], [147.68, 77.82], [147.65, 77.75], [147.68, 77.68], [147.75, 77.65], [147.88, 77.7]]]]}, "2022-11-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.85, 75.75], [135.75, 76.0], [135.85, 76.25], [135.82, 76.32], [135.47, 76.47], [135.25, 77.0], [135.47, 77.53], [136.0, 77.75], [136.25, 77.65], [136.5, 77.75], [136.75, 77.65], [137.0, 77.75], [137.25, 77.65], [137.5, 77.75], [137.75, 77.65], [138.0, 77.75], [138.25, 77.65], [138.5, 77.75], [138.75, 77.65], [138.88, 77.7], [138.75, 78.0], [138.97, 78.53], [139.5, 78.75], [140.0, 78.54], [140.32, 78.68], [140.47, 79.03], [141.0, 79.25], [141.25, 79.15], [141.5, 79.25], [141.75, 79.15], [142.0, 79.25], [142.25, 79.15], [142.5, 79.25], [142.75, 79.15], [142.82, 79.18], [142.97, 79.53], [143.5, 79.75], [143.75, 79.65], [144.0, 79.75], [144.25, 79.65], [144.5, 79.75], [145.0, 79.54], [145.5, 79.75], [145.75, 79.65], [146.0, 79.75], [146.25, 79.65], [146.5, 79.75], [146.75, 79.65], [147.0, 79.75], [147.25, 79.65], [147.5, 79.75], [147.75, 79.65], [148.0, 79.75], [148.25, 79.65], [148.5, 79.75], [148.75, 79.65], [149.0, 79.75], [149.25, 79.65], [149.5, 79.75], [149.75, 79.65], [150.0, 79.75], [150.25, 79.65], [150.5, 79.75], [150.75, 79.65], [151.0, 79.75], [151.25, 79.65], [151.5, 79.75], [151.75, 79.65], [152.0, 79.75], [152.25, 79.65], [152.5, 79.75], [152.75, 79.65], [153.0, 79.75], [153.25, 79.65], [153.5, 79.75], [153.75, 79.65], [154.0, 79.75], [154.53, 79.53], [154.75, 79.0], [154.54, 78.5], [154.75, 78.0], [154.65, 77.75], [154.75, 77.5], [154.53, 76.97], [154.0, 76.75], [153.75, 76.85], [153.5, 76.75], [153.25, 76.85], [153.0, 76.75], [152.75, 76.85], [152.5, 76.75], [152.25, 76.85], [152.0, 76.75], [151.47, 76.97], [151.32, 77.32], [151.25, 77.35], [151.0, 77.25], [150.75, 77.35], [150.68, 77.32], [150.53, 76.97], [150.18, 76.82], [150.15, 76.75], [150.25, 76.5], [150.03, 75.97], [149.5, 75.75], [149.25, 75.85], [149.18, 75.82], [149.15, 75.75], [149.25, 75.5], [149.04, 75.0], [149.25, 74.5], [149.03, 73.97], [148.5, 73.75], [148.25, 73.85], [148.0, 73.75], [147.75, 73.85], [147.5, 73.75], [147.25, 73.85], [147.0, 73.75], [146.75, 73.85], [146.5, 73.75], [146.25, 73.85], [146.0, 73.75], [145.75, 73.85], [145.5, 73.75], [145.25, 73.85], [145.0, 73.75], [144.75, 73.85], [144.5, 73.75], [144.25, 73.85], [144.0, 73.75], [143.75, 73.85], [143.5, 73.75], [143.25, 73.85], [143.0, 73.75], [142.75, 73.85], [142.5, 73.75], [142.25, 73.85], [142.0, 73.75], [141.47, 73.97], [141.32, 74.32], [141.25, 74.35], [141.0, 74.25], [140.75, 74.35], [140.5, 74.25], [140.25, 74.35], [140.0, 74.25], [139.75, 74.35], [139.5, 74.25], [139.25, 74.35], [139.0, 74.25], [138.75, 74.35], [138.5, 74.25], [138.25, 74.35], [138.0, 74.25], [137.75, 74.35], [137.5, 74.25], [137.25, 74.35], [137.0, 74.25], [136.75, 74.35], [136.5, 74.25], [136.25, 74.35], [136.0, 74.25], [135.47, 74.47], [135.25, 75.0], [135.47, 75.53], [135.82, 75.68], [135.85, 75.75]], [[147.88, 77.7], [147.82, 77.82], [147.75, 77.85], [147.68, 77.82], [147.65, 77.75], [147.68, 77.68], [147.75, 77.65], [147.88, 77.7]]]]}, "2022-11-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[136.75, 75.5], [136.97, 76.03], [137.5, 76.25], [137.75, 76.15], [138.0, 76.25], [138.25, 76.15], [138.5, 76.25], [138.75, 76.15], [139.0, 76.25], [139.53, 76.03], [139.75, 75.5], [139.53, 74.97], [139.18, 74.82], [139.03, 74.47], [138.5, 74.25], [138.25, 74.35], [138.0, 74.25], [137.75, 74.35], [137.5, 74.25], [136.97, 74.47], [136.75, 75.0], [136.85, 75.25], [136.75, 75.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 13.613464582915725}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.018768158160414}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-7.922464311925978, -9.222718420583533, -11.052103611334076, -11.945903216537147]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-5.468994249427794, -5.882622793410462, -9.01090535959753, -11.454537015432663]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [9.271389288695541, 8.226397540332512, 6.568325808827758, 7.685290603423807]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [13.613464582915725, 13.358212271191746, 9.728186773487153, 8.330046510484834]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.750525375008253, 1.5853661051108086, 1.296666537794403, 1.3095969432664931]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.1519700494236607, 2.1189578130256965, 1.6242500949949341, 1.4427472034199844]}}