{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:17:44.821781", "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-Feb-10_to_2022-Feb-14_140.0_70.5"}, "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": 2022020001809}, "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": "February 10 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 14 2022"}, "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": "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": 56072.61745062855}, "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": []}, "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": 70.5}, "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": 140.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "140.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 139.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 151.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 69.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 71.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[144.75, 71.15], [145.0, 71.25], [145.25, 71.15], [145.5, 71.25], [145.75, 71.15], [146.0, 71.25], [146.25, 71.15], [146.5, 71.25], [146.75, 71.15], [147.0, 71.25], [147.53, 71.03], [147.68, 70.68], [147.75, 70.65], [148.0, 70.75], [148.25, 70.65], [148.5, 70.75], [148.75, 70.65], [149.0, 70.75], [149.25, 70.65], [149.5, 70.75], [149.75, 70.65], [150.0, 70.75], [150.25, 70.65], [150.5, 70.75], [150.75, 70.65], [151.0, 70.75], [151.53, 70.53], [151.75, 70.0], [151.53, 69.47], [151.0, 69.25], [150.75, 69.35], [150.5, 69.25], [150.25, 69.35], [150.0, 69.25], [149.75, 69.35], [149.5, 69.25], [149.25, 69.35], [149.0, 69.25], [148.75, 69.35], [148.5, 69.25], [148.25, 69.35], [148.0, 69.25], [147.75, 69.35], [147.5, 69.25], [147.25, 69.35], [147.0, 69.25], [146.75, 69.35], [146.5, 69.25], [146.25, 69.35], [146.18, 69.32], [146.03, 68.97], [145.5, 68.75], [145.25, 68.85], [145.0, 68.75], [144.47, 68.97], [144.32, 69.32], [144.25, 69.35], [144.0, 69.25], [143.75, 69.35], [143.5, 69.25], [143.25, 69.35], [143.0, 69.25], [142.75, 69.35], [142.5, 69.25], [142.25, 69.35], [142.0, 69.25], [141.75, 69.35], [141.5, 69.25], [141.25, 69.35], [141.0, 69.25], [140.75, 69.35], [140.5, 69.25], [140.25, 69.35], [140.0, 69.25], [139.47, 69.47], [139.32, 69.82], [139.25, 69.85], [139.0, 69.75], [138.47, 69.97], [138.25, 70.5], [138.35, 70.75], [138.25, 71.0], [138.47, 71.53], [139.0, 71.75], [139.25, 71.65], [139.5, 71.75], [139.75, 71.65], [140.0, 71.75], [140.25, 71.65], [140.5, 71.75], [140.75, 71.65], [140.82, 71.68], [140.97, 72.03], [141.5, 72.25], [142.03, 72.03], [142.18, 71.68], [142.25, 71.65], [142.5, 71.75], [142.75, 71.65], [143.0, 71.75], [143.25, 71.65], [143.5, 71.75], [143.75, 71.65], [144.0, 71.75], [144.53, 71.53], [144.68, 71.18], [144.75, 71.15]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Russian-Arctic"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-02-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[139.5, 69.75], [138.97, 69.97], [138.75, 70.5], [138.97, 71.03], [139.5, 71.25], [139.75, 71.15], [140.0, 71.25], [140.53, 71.03], [140.75, 70.5], [140.53, 69.97], [140.0, 69.75], [139.75, 69.85], [139.5, 69.75]]]]}, "2022-02-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.25, 71.0], [138.47, 71.53], [139.0, 71.75], [139.25, 71.65], [139.5, 71.75], [139.75, 71.65], [140.0, 71.75], [140.25, 71.65], [140.5, 71.75], [140.75, 71.65], [140.82, 71.68], [140.97, 72.03], [141.5, 72.25], [142.03, 72.03], [142.18, 71.68], [142.25, 71.65], [142.5, 71.75], [142.75, 71.65], [143.0, 71.75], [143.25, 71.65], [143.5, 71.75], [143.75, 71.65], [144.0, 71.75], [144.53, 71.53], [144.75, 71.0], [144.53, 70.47], [144.18, 70.32], [144.03, 69.97], [143.5, 69.75], [143.25, 69.85], [143.0, 69.75], [142.75, 69.85], [142.5, 69.75], [142.25, 69.85], [142.0, 69.75], [141.75, 69.85], [141.5, 69.75], [141.25, 69.85], [141.0, 69.75], [140.75, 69.85], [140.5, 69.75], [140.25, 69.85], [140.0, 69.75], [139.75, 69.85], [139.5, 69.75], [139.25, 69.85], [139.0, 69.75], [138.47, 69.97], [138.25, 70.5], [138.35, 70.75], [138.25, 71.0]]]]}, "2022-02-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.25, 71.0], [138.47, 71.53], [139.0, 71.75], [139.25, 71.65], [139.5, 71.75], [139.75, 71.65], [140.0, 71.75], [140.25, 71.65], [140.5, 71.75], [140.75, 71.65], [140.82, 71.68], [140.97, 72.03], [141.5, 72.25], [142.03, 72.03], [142.18, 71.68], [142.25, 71.65], [142.5, 71.75], [142.75, 71.65], [143.0, 71.75], [143.25, 71.65], [143.5, 71.75], [143.75, 71.65], [144.0, 71.75], [144.53, 71.53], [144.68, 71.18], [144.75, 71.15], [145.0, 71.25], [145.25, 71.15], [145.5, 71.25], [145.75, 71.15], [146.0, 71.25], [146.25, 71.15], [146.5, 71.25], [146.75, 71.15], [147.0, 71.25], [147.53, 71.03], [147.68, 70.68], [147.75, 70.65], [148.0, 70.75], [148.25, 70.65], [148.5, 70.75], [148.75, 70.65], [149.0, 70.75], [149.25, 70.65], [149.5, 70.75], [149.75, 70.65], [150.0, 70.75], [150.25, 70.65], [150.5, 70.75], [150.75, 70.65], [151.0, 70.75], [151.53, 70.53], [151.75, 70.0], [151.53, 69.47], [151.0, 69.25], [150.75, 69.35], [150.5, 69.25], [150.25, 69.35], [150.0, 69.25], [149.75, 69.35], [149.5, 69.25], [149.25, 69.35], [149.0, 69.25], [148.75, 69.35], [148.5, 69.25], [148.25, 69.35], [148.0, 69.25], [147.75, 69.35], [147.5, 69.25], [147.25, 69.35], [147.0, 69.25], [146.75, 69.35], [146.5, 69.25], [146.25, 69.35], [146.18, 69.32], [146.03, 68.97], [145.5, 68.75], [145.25, 68.85], [145.0, 68.75], [144.47, 68.97], [144.32, 69.32], [144.25, 69.35], [144.0, 69.25], [143.75, 69.35], [143.5, 69.25], [143.25, 69.35], [143.0, 69.25], [142.75, 69.35], [142.5, 69.25], [142.25, 69.35], [142.0, 69.25], [141.75, 69.35], [141.5, 69.25], [141.25, 69.35], [141.0, 69.25], [140.75, 69.35], [140.5, 69.25], [140.25, 69.35], [140.0, 69.25], [139.47, 69.47], [139.32, 69.82], [139.25, 69.85], [139.0, 69.75], [138.47, 69.97], [138.25, 70.5], [138.35, 70.75], [138.25, 71.0]]]]}, "2022-02-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.25, 71.0], [138.47, 71.53], [139.0, 71.75], [139.25, 71.65], [139.5, 71.75], [139.75, 71.65], [140.0, 71.75], [140.25, 71.65], [140.5, 71.75], [140.75, 71.65], [140.82, 71.68], [140.97, 72.03], [141.5, 72.25], [142.03, 72.03], [142.18, 71.68], [142.25, 71.65], [142.5, 71.75], [142.75, 71.65], [143.0, 71.75], [143.25, 71.65], [143.5, 71.75], [143.75, 71.65], [144.0, 71.75], [144.53, 71.53], [144.68, 71.18], [144.75, 71.15], [145.0, 71.25], [145.25, 71.15], [145.5, 71.25], [145.75, 71.15], [146.0, 71.25], [146.25, 71.15], [146.5, 71.25], [146.75, 71.15], [147.0, 71.25], [147.53, 71.03], [147.68, 70.68], [147.75, 70.65], [148.0, 70.75], [148.25, 70.65], [148.5, 70.75], [148.75, 70.65], [149.0, 70.75], [149.25, 70.65], [149.5, 70.75], [149.75, 70.65], [150.0, 70.75], [150.25, 70.65], [150.5, 70.75], [150.75, 70.65], [151.0, 70.75], [151.53, 70.53], [151.75, 70.0], [151.53, 69.47], [151.0, 69.25], [150.75, 69.35], [150.5, 69.25], [150.25, 69.35], [150.0, 69.25], [149.75, 69.35], [149.5, 69.25], [149.25, 69.35], [149.0, 69.25], [148.75, 69.35], [148.5, 69.25], [148.25, 69.35], [148.0, 69.25], [147.75, 69.35], [147.5, 69.25], [147.25, 69.35], [147.0, 69.25], [146.75, 69.35], [146.5, 69.25], [146.25, 69.35], [146.18, 69.32], [146.03, 68.97], [145.5, 68.75], [145.25, 68.85], [145.0, 68.75], [144.47, 68.97], [144.32, 69.32], [144.25, 69.35], [144.0, 69.25], [143.75, 69.35], [143.5, 69.25], [143.25, 69.35], [143.0, 69.25], [142.75, 69.35], [142.5, 69.25], [142.25, 69.35], [142.0, 69.25], [141.75, 69.35], [141.5, 69.25], [141.25, 69.35], [141.0, 69.25], [140.75, 69.35], [140.5, 69.25], [140.25, 69.35], [140.0, 69.25], [139.47, 69.47], [139.32, 69.82], [139.25, 69.85], [139.0, 69.75], [138.47, 69.97], [138.25, 70.5], [138.35, 70.75], [138.25, 71.0]]]]}, "2022-02-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[139.25, 70.5], [139.47, 71.03], [140.0, 71.25], [140.25, 71.15], [140.5, 71.25], [140.75, 71.15], [141.0, 71.25], [141.25, 71.15], [141.5, 71.25], [141.75, 71.15], [142.0, 71.25], [142.25, 71.15], [142.5, 71.25], [142.75, 71.15], [143.0, 71.25], [143.25, 71.15], [143.5, 71.25], [143.75, 71.15], [144.0, 71.25], [144.25, 71.15], [144.5, 71.25], [144.75, 71.15], [145.0, 71.25], [145.25, 71.15], [145.5, 71.25], [145.75, 71.15], [146.0, 71.25], [146.25, 71.15], [146.5, 71.25], [146.75, 71.15], [147.0, 71.25], [147.53, 71.03], [147.68, 70.68], [147.75, 70.65], [148.0, 70.75], [148.25, 70.65], [148.5, 70.75], [148.75, 70.65], [149.0, 70.75], [149.25, 70.65], [149.5, 70.75], [149.75, 70.65], [150.0, 70.75], [150.25, 70.65], [150.5, 70.75], [150.75, 70.65], [151.0, 70.75], [151.53, 70.53], [151.75, 70.0], [151.53, 69.47], [151.0, 69.25], [150.75, 69.35], [150.5, 69.25], [150.25, 69.35], [150.0, 69.25], [149.75, 69.35], [149.5, 69.25], [149.25, 69.35], [149.0, 69.25], [148.75, 69.35], [148.5, 69.25], [148.25, 69.35], [148.0, 69.25], [147.75, 69.35], [147.5, 69.25], [147.25, 69.35], [147.0, 69.25], [146.75, 69.35], [146.5, 69.25], [146.25, 69.35], [146.18, 69.32], [146.03, 68.97], [145.5, 68.75], [145.25, 68.85], [145.0, 68.75], [144.47, 68.97], [144.32, 69.32], [144.25, 69.35], [144.0, 69.25], [143.75, 69.35], [143.5, 69.25], [143.25, 69.35], [143.0, 69.25], [142.75, 69.35], [142.5, 69.25], [142.25, 69.35], [142.0, 69.25], [141.75, 69.35], [141.5, 69.25], [141.25, 69.35], [141.0, 69.25], [140.75, 69.35], [140.5, 69.25], [140.25, 69.35], [140.0, 69.25], [139.47, 69.47], [139.25, 70.0], [139.35, 70.25], [139.25, 70.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 12.938658249666389}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 10.052844553071361}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-26.31658045187251, -25.41119773450859, -23.312504137875123, -22.33145510200302, -24.549151971025026]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-25.981030604287497, -24.34190415951923, -21.998394934044796, -20.907260078693724, -23.01778770541543]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.853818944577242, 9.152156712241448, 10.479018704811335, 11.213871011485885, 8.515453322243953]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.23295713495736, 9.607226959758009, 12.478072969623412, 12.938658249666389, 10.365479536822875]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2847683361892404, 1.387039232854489, 1.6986910155657644, 1.8441188121170806, 1.5067065878340413]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3208664120579487, 1.54486109505699, 1.965011501823904, 2.185045978383868, 1.8008309380279137]}}