{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:43.028740", "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": "2011-Oct-19_to_2011-Oct-25_149.0_74.5"}, "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": 2011100002494}, "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 19 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 25 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 55559.5057736031}, "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-Arctic"]}, "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": ["East Siberian 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": 74.5}, "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": 149.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "149.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 146.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 159.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 72.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 75.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-10-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[149.97, 72.97], [149.75, 73.5], [149.97, 74.03], [150.5, 74.25], [150.75, 74.15], [151.0, 74.25], [151.53, 74.03], [151.75, 73.5], [151.53, 72.97], [151.0, 72.75], [150.75, 72.85], [150.5, 72.75], [149.97, 72.97]]]]}, "2011-10-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.25, 75.0], [146.47, 75.53], [147.0, 75.75], [147.25, 75.65], [147.5, 75.75], [147.75, 75.65], [148.0, 75.75], [148.25, 75.65], [148.5, 75.75], [148.75, 75.65], [149.0, 75.75], [149.25, 75.65], [149.5, 75.75], [149.75, 75.65], [150.0, 75.75], [150.25, 75.65], [150.5, 75.75], [151.03, 75.53], [151.25, 75.0], [151.15, 74.75], [151.18, 74.68], [151.25, 74.65], [151.5, 74.75], [151.75, 74.65], [152.0, 74.75], [152.25, 74.65], [152.5, 74.75], [152.75, 74.65], [153.0, 74.75], [153.25, 74.65], [153.5, 74.75], [153.75, 74.65], [154.0, 74.75], [154.53, 74.53], [154.68, 74.18], [154.75, 74.15], [155.0, 74.25], [155.25, 74.15], [155.5, 74.25], [155.75, 74.15], [156.0, 74.25], [156.25, 74.15], [156.5, 74.25], [156.75, 74.15], [157.0, 74.25], [157.25, 74.15], [157.5, 74.25], [157.75, 74.15], [158.0, 74.25], [158.25, 74.15], [158.5, 74.25], [158.75, 74.15], [159.0, 74.25], [159.53, 74.03], [159.68, 73.68], [160.03, 73.53], [160.25, 73.0], [160.03, 72.47], [159.5, 72.25], [159.25, 72.35], [159.0, 72.25], [158.75, 72.35], [158.5, 72.25], [158.25, 72.35], [158.0, 72.25], [157.75, 72.35], [157.5, 72.25], [157.25, 72.35], [157.0, 72.25], [156.75, 72.35], [156.5, 72.25], [156.25, 72.35], [156.0, 72.25], [155.47, 72.47], [155.32, 72.82], [155.25, 72.85], [155.0, 72.75], [154.75, 72.85], [154.5, 72.75], [154.25, 72.85], [154.0, 72.75], [153.75, 72.85], [153.5, 72.75], [153.25, 72.85], [153.0, 72.75], [152.75, 72.85], [152.5, 72.75], [152.25, 72.85], [152.0, 72.75], [151.75, 72.85], [151.5, 72.75], [151.25, 72.85], [151.0, 72.75], [150.75, 72.85], [150.5, 72.75], [150.25, 72.85], [150.0, 72.75], [149.47, 72.97], [149.32, 73.32], [149.25, 73.35], [149.0, 73.25], [148.75, 73.35], [148.5, 73.25], [148.25, 73.35], [148.0, 73.25], [147.75, 73.35], [147.5, 73.25], [146.97, 73.47], [146.75, 74.0], [146.85, 74.25], [146.82, 74.32], [146.47, 74.47], [146.25, 75.0]]]]}, "2011-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.25, 75.0], [146.47, 75.53], [147.0, 75.75], [147.25, 75.65], [147.5, 75.75], [147.75, 75.65], [148.0, 75.75], [148.25, 75.65], [148.5, 75.75], [148.75, 75.65], [149.0, 75.75], [149.25, 75.65], [149.5, 75.75], [149.75, 75.65], [150.0, 75.75], [150.25, 75.65], [150.5, 75.75], [151.03, 75.53], [151.18, 75.18], [151.25, 75.15], [151.5, 75.25], [151.75, 75.15], [152.0, 75.25], [152.25, 75.15], [152.5, 75.25], [152.75, 75.15], [153.0, 75.25], [153.53, 75.03], [153.68, 74.68], [153.75, 74.65], [154.0, 74.75], [154.25, 74.65], [154.5, 74.75], [154.75, 74.65], [155.0, 74.75], [155.25, 74.65], [155.5, 74.75], [155.75, 74.65], [156.0, 74.75], [156.53, 74.53], [156.68, 74.18], [156.75, 74.15], [157.0, 74.25], [157.25, 74.15], [157.5, 74.25], [157.75, 74.15], [158.0, 74.25], [158.25, 74.15], [158.5, 74.25], [158.75, 74.15], [159.0, 74.25], [159.53, 74.03], [159.68, 73.68], [160.03, 73.53], [160.25, 73.0], [160.03, 72.47], [159.5, 72.25], [159.25, 72.35], [159.0, 72.25], [158.75, 72.35], [158.5, 72.25], [158.25, 72.35], [158.0, 72.25], [157.75, 72.35], [157.5, 72.25], [157.25, 72.35], [157.0, 72.25], [156.75, 72.35], [156.5, 72.25], [156.25, 72.35], [156.0, 72.25], [155.47, 72.47], [155.32, 72.82], [155.25, 72.85], [155.0, 72.75], [154.75, 72.85], [154.5, 72.75], [154.25, 72.85], [154.0, 72.75], [153.75, 72.85], [153.5, 72.75], [153.25, 72.85], [153.0, 72.75], [152.75, 72.85], [152.5, 72.75], [152.25, 72.85], [152.0, 72.75], [151.75, 72.85], [151.5, 72.75], [151.25, 72.85], [151.0, 72.75], [150.75, 72.85], [150.5, 72.75], [150.25, 72.85], [150.0, 72.75], [149.47, 72.97], [149.32, 73.32], [149.25, 73.35], [149.0, 73.25], [148.75, 73.35], [148.5, 73.25], [148.25, 73.35], [148.0, 73.25], [147.75, 73.35], [147.5, 73.25], [146.97, 73.47], [146.75, 74.0], [146.85, 74.25], [146.82, 74.32], [146.47, 74.47], [146.25, 75.0]]]]}, "2011-10-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.25, 75.0], [146.47, 75.53], [147.0, 75.75], [147.25, 75.65], [147.5, 75.75], [147.75, 75.65], [148.0, 75.75], [148.25, 75.65], [148.5, 75.75], [148.75, 75.65], [149.0, 75.75], [149.25, 75.65], [149.5, 75.75], [149.75, 75.65], [150.0, 75.75], [150.25, 75.65], [150.5, 75.75], [151.03, 75.53], [151.18, 75.18], [151.25, 75.15], [151.5, 75.25], [151.75, 75.15], [152.0, 75.25], [152.25, 75.15], [152.5, 75.25], [152.75, 75.15], [153.0, 75.25], [153.53, 75.03], [153.68, 74.68], [153.75, 74.65], [154.0, 74.75], [154.25, 74.65], [154.5, 74.75], [154.75, 74.65], [155.0, 74.75], [155.25, 74.65], [155.5, 74.75], [155.75, 74.65], [156.0, 74.75], [156.53, 74.53], [156.68, 74.18], [156.75, 74.15], [157.0, 74.25], [157.25, 74.15], [157.5, 74.25], [157.75, 74.15], [158.0, 74.25], [158.25, 74.15], [158.5, 74.25], [158.75, 74.15], [159.0, 74.25], [159.53, 74.03], [159.68, 73.68], [160.03, 73.53], [160.25, 73.0], [160.03, 72.47], [159.5, 72.25], [159.25, 72.35], [159.0, 72.25], [158.75, 72.35], [158.5, 72.25], [158.25, 72.35], [158.0, 72.25], [157.75, 72.35], [157.5, 72.25], [157.25, 72.35], [157.0, 72.25], [156.75, 72.35], [156.5, 72.25], [156.25, 72.35], [156.0, 72.25], [155.47, 72.47], [155.32, 72.82], [155.25, 72.85], [155.0, 72.75], [154.75, 72.85], [154.5, 72.75], [154.25, 72.85], [154.0, 72.75], [153.75, 72.85], [153.5, 72.75], [153.25, 72.85], [153.0, 72.75], [152.75, 72.85], [152.5, 72.75], [152.25, 72.85], [152.0, 72.75], [151.75, 72.85], [151.5, 72.75], [151.25, 72.85], [151.0, 72.75], [150.75, 72.85], [150.5, 72.75], [150.25, 72.85], [150.0, 72.75], [149.47, 72.97], [149.32, 73.32], [149.25, 73.35], [149.0, 73.25], [148.75, 73.35], [148.5, 73.25], [148.25, 73.35], [148.0, 73.25], [147.75, 73.35], [147.5, 73.25], [146.97, 73.47], [146.75, 74.0], [146.85, 74.25], [146.82, 74.32], [146.47, 74.47], [146.25, 75.0]]]]}, "2011-10-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.47, 73.97], [147.25, 74.5], [147.47, 75.03], [148.0, 75.25], [148.25, 75.15], [148.5, 75.25], [148.75, 75.15], [149.0, 75.25], [149.25, 75.15], [149.5, 75.25], [149.75, 75.15], [150.0, 75.25], [150.25, 75.15], [150.5, 75.25], [150.75, 75.15], [151.0, 75.25], [151.25, 75.15], [151.5, 75.25], [151.75, 75.15], [152.0, 75.25], [152.25, 75.15], [152.5, 75.25], [152.75, 75.15], [153.0, 75.25], [153.53, 75.03], [153.68, 74.68], [153.75, 74.65], [154.0, 74.75], [154.25, 74.65], [154.5, 74.75], [154.75, 74.65], [155.0, 74.75], [155.25, 74.65], [155.5, 74.75], [155.75, 74.65], [156.0, 74.75], [156.53, 74.53], [156.68, 74.18], [157.03, 74.03], [157.25, 73.5], [157.15, 73.25], [157.25, 73.0], [157.03, 72.47], [156.5, 72.25], [156.25, 72.35], [156.0, 72.25], [155.47, 72.47], [155.32, 72.82], [155.25, 72.85], [155.0, 72.75], [154.75, 72.85], [154.5, 72.75], [154.25, 72.85], [154.0, 72.75], [153.75, 72.85], [153.5, 72.75], [153.25, 72.85], [153.0, 72.75], [152.75, 72.85], [152.5, 72.75], [152.25, 72.85], [152.0, 72.75], [151.75, 72.85], [151.5, 72.75], [151.25, 72.85], [151.0, 72.75], [150.75, 72.85], [150.5, 72.75], [150.25, 72.85], [150.0, 72.75], [149.47, 72.97], [149.32, 73.32], [149.25, 73.35], [149.0, 73.25], [148.47, 73.47], [148.32, 73.82], [148.25, 73.85], [148.0, 73.75], [147.47, 73.97]]]]}, "2011-10-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.75, 74.5], [147.97, 75.03], [148.5, 75.25], [148.75, 75.15], [149.0, 75.25], [149.25, 75.15], [149.5, 75.25], [149.75, 75.15], [150.0, 75.25], [150.25, 75.15], [150.5, 75.25], [150.75, 75.15], [151.0, 75.25], [151.25, 75.15], [151.5, 75.25], [152.0, 75.04], [152.5, 75.25], [152.75, 75.15], [153.0, 75.25], [153.53, 75.03], [153.68, 74.68], [153.75, 74.65], [154.0, 74.75], [154.25, 74.65], [154.5, 74.75], [154.75, 74.65], [155.0, 74.75], [155.25, 74.65], [155.5, 74.75], [156.03, 74.53], [156.25, 74.0], [156.03, 73.47], [155.5, 73.25], [155.25, 73.35], [155.0, 73.25], [154.75, 73.35], [154.5, 73.25], [154.25, 73.35], [154.0, 73.25], [153.75, 73.35], [153.5, 73.25], [153.25, 73.35], [153.0, 73.25], [152.75, 73.35], [152.5, 73.25], [152.25, 73.35], [152.0, 73.25], [151.75, 73.35], [151.5, 73.25], [151.25, 73.35], [151.0, 73.25], [150.75, 73.35], [150.5, 73.25], [150.25, 73.35], [150.0, 73.25], [149.75, 73.35], [149.5, 73.25], [149.25, 73.35], [149.0, 73.25], [148.47, 73.47], [148.32, 73.82], [147.97, 73.97], [147.75, 74.5]]]]}, "2011-10-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[148.47, 75.03], [149.0, 75.25], [149.25, 75.15], [149.5, 75.25], [149.75, 75.15], [150.0, 75.25], [150.53, 75.03], [150.68, 74.68], [150.75, 74.65], [151.0, 74.75], [151.25, 74.65], [151.5, 74.75], [151.75, 74.65], [152.0, 74.75], [152.53, 74.53], [152.75, 74.0], [152.53, 73.47], [152.0, 73.25], [151.75, 73.35], [151.5, 73.25], [151.25, 73.35], [151.0, 73.25], [150.75, 73.35], [150.5, 73.25], [150.25, 73.35], [150.0, 73.25], [149.75, 73.35], [149.5, 73.25], [149.25, 73.35], [149.0, 73.25], [148.47, 73.47], [148.25, 74.0], [148.35, 74.25], [148.25, 74.5], [148.47, 75.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.386182620588784}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.602878184907159}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-1.775014115814713, -2.0099645163632545, -1.9335786810618174, -2.8429753258408255, -2.917063178956937, -3.3982641352123437, -4.109074082929737]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-1.736611509840884, -1.0576417437081886, -1.1579781433315475, -2.23924352485119, -2.5138714853641773, -2.95636012317874, -3.503569853972067]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.5248588186010466, 6.1585613780354125, 6.76789506424994, 6.466290248737732, 6.86705441450708, 7.066168068854104, 6.946761148625768]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.528993953629822, 6.471838533169205, 7.198665532275754, 7.065262528698213, 7.175307436879052, 7.278238834990759, 7.386182620588784]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2138571278598158, 1.3512564696787943, 1.481037535620526, 1.4127356542216118, 1.4665628059809654, 1.5590703046444905, 1.5962080355196484]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2173703267024019, 1.532957278519831, 1.781875940372321, 1.6476628054314473, 1.6520504181755846, 1.7109046661382046, 1.6609774845537133]}}