{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:29.686115", "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": "2012-May-15_to_2012-May-18_152.5_70.0"}, "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": 2012050002444}, "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": "May 15 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 18 2012"}, "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": 171381.7430912397}, "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": 70.0}, "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": 152.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "152.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 139.75}, "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": 65.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 71.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-05-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[139.25, 67.5], [139.47, 68.03], [139.82, 68.18], [139.97, 68.53], [140.5, 68.75], [140.75, 68.65], [140.82, 68.68], [140.97, 69.03], [141.5, 69.25], [141.75, 69.15], [142.0, 69.25], [142.25, 69.15], [142.5, 69.25], [143.03, 69.03], [143.18, 68.68], [143.25, 68.65], [143.5, 68.75], [143.75, 68.65], [143.82, 68.68], [143.97, 69.03], [144.5, 69.25], [145.0, 69.04], [145.5, 69.25], [145.75, 69.15], [145.82, 69.18], [145.97, 69.53], [146.5, 69.75], [147.0, 69.54], [147.5, 69.75], [147.75, 69.65], [148.0, 69.75], [148.25, 69.65], [148.5, 69.75], [148.75, 69.65], [149.0, 69.75], [149.25, 69.65], [149.5, 69.75], [149.75, 69.65], [150.0, 69.75], [150.53, 69.53], [150.75, 69.0], [150.65, 68.75], [150.75, 68.5], [150.65, 68.25], [150.75, 68.0], [150.53, 67.47], [150.0, 67.25], [149.75, 67.35], [149.5, 67.25], [149.25, 67.35], [149.0, 67.25], [148.75, 67.35], [148.5, 67.25], [148.25, 67.35], [148.18, 67.32], [148.13, 67.2], [148.53, 67.03], [148.75, 66.5], [148.53, 65.97], [148.0, 65.75], [147.75, 65.85], [147.5, 65.75], [147.25, 65.85], [147.0, 65.75], [146.75, 65.85], [146.5, 65.75], [146.07, 65.93], [146.25, 65.5], [146.03, 64.97], [145.5, 64.75], [145.25, 64.85], [145.0, 64.75], [144.75, 64.85], [144.5, 64.75], [144.25, 64.85], [144.0, 64.75], [143.75, 64.85], [143.5, 64.75], [143.25, 64.85], [143.0, 64.75], [142.75, 64.85], [142.5, 64.75], [141.97, 64.97], [141.8, 65.38], [141.5, 65.25], [141.25, 65.35], [141.0, 65.25], [140.47, 65.47], [140.25, 66.0], [140.35, 66.25], [140.32, 66.32], [139.97, 66.47], [139.82, 66.82], [139.47, 66.97], [139.25, 67.5]], [[142.5, 66.75], [142.25, 66.85], [142.13, 66.8], [142.2, 66.63], [142.5, 66.75]], [[142.75, 66.65], [142.82, 66.68], [142.85, 66.75], [142.82, 66.82], [142.75, 66.85], [142.5, 66.75], [142.75, 66.65]], [[145.63, 66.3], [145.68, 66.18], [145.93, 66.07], [145.82, 66.32], [145.75, 66.35], [145.63, 66.3]]]]}, "2012-05-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[139.25, 67.5], [139.47, 68.03], [139.82, 68.18], [139.97, 68.53], [140.5, 68.75], [140.75, 68.65], [140.82, 68.68], [140.97, 69.03], [141.5, 69.25], [141.75, 69.15], [142.0, 69.25], [142.25, 69.15], [142.5, 69.25], [143.03, 69.03], [143.18, 68.68], [143.25, 68.65], [143.5, 68.75], [143.75, 68.65], [143.82, 68.68], [143.97, 69.03], [144.5, 69.25], [145.0, 69.04], [145.5, 69.25], [145.75, 69.15], [145.82, 69.18], [145.97, 69.53], [146.5, 69.75], [147.0, 69.54], [147.5, 69.75], [147.75, 69.65], [148.0, 69.75], [148.25, 69.65], [148.5, 69.75], [148.75, 69.65], [149.0, 69.75], [149.25, 69.65], [149.5, 69.75], [149.75, 69.65], [149.82, 69.68], [149.85, 69.75], [149.82, 69.82], [149.47, 69.97], [149.32, 70.32], [148.97, 70.47], [148.75, 71.0], [148.97, 71.53], [149.5, 71.75], [149.75, 71.65], [150.0, 71.75], [150.25, 71.65], [150.5, 71.75], [150.75, 71.65], [151.0, 71.75], [151.25, 71.65], [151.5, 71.75], [151.75, 71.65], [152.0, 71.75], [152.25, 71.65], [152.5, 71.75], [152.75, 71.65], [153.0, 71.75], [153.25, 71.65], [153.5, 71.75], [153.75, 71.65], [154.0, 71.75], [154.25, 71.65], [154.5, 71.75], [154.75, 71.65], [155.0, 71.75], [155.25, 71.65], [155.5, 71.75], [156.03, 71.53], [156.18, 71.18], [156.25, 71.15], [156.5, 71.25], [157.03, 71.03], [157.18, 70.68], [157.53, 70.53], [157.68, 70.18], [158.03, 70.03], [158.25, 69.5], [158.03, 68.97], [157.5, 68.75], [157.25, 68.85], [157.18, 68.82], [157.03, 68.47], [156.5, 68.25], [156.25, 68.35], [156.0, 68.25], [155.75, 68.35], [155.5, 68.25], [155.25, 68.35], [155.0, 68.25], [154.75, 68.35], [154.5, 68.25], [154.25, 68.35], [154.0, 68.25], [153.75, 68.35], [153.5, 68.25], [153.25, 68.35], [153.0, 68.25], [152.75, 68.35], [152.5, 68.25], [152.25, 68.35], [152.0, 68.25], [151.75, 68.35], [151.5, 68.25], [151.25, 68.35], [151.0, 68.25], [150.7, 68.38], [150.65, 68.25], [150.75, 68.0], [150.53, 67.47], [150.0, 67.25], [149.75, 67.35], [149.5, 67.25], [149.25, 67.35], [149.0, 67.25], [148.75, 67.35], [148.5, 67.25], [148.25, 67.35], [148.18, 67.32], [148.13, 67.2], [148.53, 67.03], [148.75, 66.5], [148.53, 65.97], [148.0, 65.75], [147.75, 65.85], [147.5, 65.75], [147.25, 65.85], [147.0, 65.75], [146.75, 65.85], [146.5, 65.75], [146.07, 65.93], [146.25, 65.5], [146.03, 64.97], [145.5, 64.75], [145.25, 64.85], [145.0, 64.75], [144.75, 64.85], [144.5, 64.75], [144.25, 64.85], [144.0, 64.75], [143.75, 64.85], [143.5, 64.75], [143.25, 64.85], [143.0, 64.75], [142.75, 64.85], [142.5, 64.75], [141.97, 64.97], [141.8, 65.38], [141.5, 65.25], [141.25, 65.35], [141.0, 65.25], [140.47, 65.47], [140.25, 66.0], [140.35, 66.25], [140.32, 66.32], [139.97, 66.47], [139.82, 66.82], [139.47, 66.97], [139.25, 67.5]], [[142.5, 66.75], [142.25, 66.85], [142.13, 66.8], [142.2, 66.63], [142.5, 66.75]], [[142.75, 66.65], [142.82, 66.68], [142.85, 66.75], [142.82, 66.82], [142.75, 66.85], [142.5, 66.75], [142.75, 66.65]], [[145.63, 66.3], [145.68, 66.18], [145.93, 66.07], [145.82, 66.32], [145.75, 66.35], [145.63, 66.3]]]]}, "2012-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[139.25, 67.5], [139.47, 68.03], [139.82, 68.18], [139.97, 68.53], [140.5, 68.75], [140.75, 68.65], [140.82, 68.68], [140.97, 69.03], [141.5, 69.25], [141.75, 69.15], [142.0, 69.25], [142.25, 69.15], [142.5, 69.25], [143.03, 69.03], [143.18, 68.68], [143.25, 68.65], [143.5, 68.75], [143.75, 68.65], [143.82, 68.68], [143.97, 69.03], [144.5, 69.25], [145.0, 69.04], [145.5, 69.25], [145.75, 69.15], [145.82, 69.18], [145.97, 69.53], [146.5, 69.75], [147.0, 69.54], [147.5, 69.75], [147.75, 69.65], [148.0, 69.75], [148.25, 69.65], [148.5, 69.75], [148.75, 69.65], [149.0, 69.75], [149.25, 69.65], [149.5, 69.75], [149.75, 69.65], [149.82, 69.68], [149.85, 69.75], [149.82, 69.82], [149.47, 69.97], [149.32, 70.32], [148.97, 70.47], [148.75, 71.0], [148.97, 71.53], [149.5, 71.75], [149.75, 71.65], [150.0, 71.75], [150.25, 71.65], [150.5, 71.75], [150.75, 71.65], [151.0, 71.75], [151.25, 71.65], [151.5, 71.75], [151.75, 71.65], [152.0, 71.75], [152.25, 71.65], [152.5, 71.75], [152.75, 71.65], [153.0, 71.75], [153.25, 71.65], [153.5, 71.75], [153.75, 71.65], [154.0, 71.75], [154.25, 71.65], [154.5, 71.75], [154.75, 71.65], [155.0, 71.75], [155.25, 71.65], [155.5, 71.75], [156.03, 71.53], [156.18, 71.18], [156.25, 71.15], [156.5, 71.25], [157.03, 71.03], [157.18, 70.68], [157.53, 70.53], [157.68, 70.18], [158.03, 70.03], [158.25, 69.5], [158.03, 68.97], [157.5, 68.75], [157.25, 68.85], [157.18, 68.82], [157.03, 68.47], [156.5, 68.25], [156.25, 68.35], [156.0, 68.25], [155.75, 68.35], [155.5, 68.25], [155.25, 68.35], [155.0, 68.25], [154.75, 68.35], [154.5, 68.25], [154.25, 68.35], [154.0, 68.25], [153.75, 68.35], [153.5, 68.25], [153.25, 68.35], [153.0, 68.25], [152.75, 68.35], [152.5, 68.25], [152.25, 68.35], [152.0, 68.25], [151.75, 68.35], [151.5, 68.25], [151.25, 68.35], [151.0, 68.25], [150.7, 68.38], [150.65, 68.25], [150.75, 68.0], [150.53, 67.47], [150.0, 67.25], [149.75, 67.35], [149.5, 67.25], [149.25, 67.35], [149.0, 67.25], [148.75, 67.35], [148.5, 67.25], [148.25, 67.35], [148.18, 67.32], [148.13, 67.2], [148.53, 67.03], [148.75, 66.5], [148.53, 65.97], [148.0, 65.75], [147.75, 65.85], [147.5, 65.75], [147.25, 65.85], [147.0, 65.75], [146.75, 65.85], [146.5, 65.75], [146.07, 65.93], [146.25, 65.5], [146.03, 64.97], [145.5, 64.75], [145.25, 64.85], [145.0, 64.75], [144.75, 64.85], [144.5, 64.75], [144.25, 64.85], [144.0, 64.75], [143.75, 64.85], [143.5, 64.75], [143.25, 64.85], [143.0, 64.75], [142.75, 64.85], [142.5, 64.75], [141.97, 64.97], [141.8, 65.38], [141.5, 65.25], [141.25, 65.35], [141.0, 65.25], [140.47, 65.47], [140.25, 66.0], [140.35, 66.25], [140.32, 66.32], [139.97, 66.47], [139.82, 66.82], [139.47, 66.97], [139.25, 67.5]], [[142.5, 66.75], [142.25, 66.85], [142.13, 66.8], [142.2, 66.63], [142.5, 66.75]], [[142.75, 66.65], [142.82, 66.68], [142.85, 66.75], [142.82, 66.82], [142.75, 66.85], [142.5, 66.75], [142.75, 66.65]], [[145.63, 66.3], [145.68, 66.18], [145.93, 66.07], [145.82, 66.32], [145.75, 66.35], [145.63, 66.3]]]]}, "2012-05-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[148.75, 71.0], [148.97, 71.53], [149.5, 71.75], [149.75, 71.65], [150.0, 71.75], [150.25, 71.65], [150.5, 71.75], [150.75, 71.65], [151.0, 71.75], [151.25, 71.65], [151.5, 71.75], [151.75, 71.65], [152.0, 71.75], [152.25, 71.65], [152.5, 71.75], [152.75, 71.65], [153.0, 71.75], [153.25, 71.65], [153.5, 71.75], [153.75, 71.65], [154.0, 71.75], [154.25, 71.65], [154.5, 71.75], [154.75, 71.65], [155.0, 71.75], [155.25, 71.65], [155.5, 71.75], [156.03, 71.53], [156.18, 71.18], [156.25, 71.15], [156.5, 71.25], [157.03, 71.03], [157.18, 70.68], [157.53, 70.53], [157.68, 70.18], [158.03, 70.03], [158.25, 69.5], [158.03, 68.97], [157.5, 68.75], [157.25, 68.85], [157.18, 68.82], [157.03, 68.47], [156.5, 68.25], [156.25, 68.35], [156.0, 68.25], [155.75, 68.35], [155.5, 68.25], [155.25, 68.35], [155.0, 68.25], [154.75, 68.35], [154.5, 68.25], [154.25, 68.35], [154.0, 68.25], [153.75, 68.35], [153.5, 68.25], [153.25, 68.35], [153.0, 68.25], [152.75, 68.35], [152.5, 68.25], [152.25, 68.35], [152.0, 68.25], [151.75, 68.35], [151.5, 68.25], [151.25, 68.35], [151.0, 68.25], [150.47, 68.47], [150.32, 68.82], [149.97, 68.97], [149.75, 69.5], [149.85, 69.75], [149.82, 69.82], [149.47, 69.97], [149.32, 70.32], [148.97, 70.47], [148.75, 71.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 15.406527518463975}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.758750487108141}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [5.654170876304249, 8.35853216070592, 7.777950229146256, 4.932517628286462]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.48318771488158, 15.177509495601385, 12.78427990566803, 7.92810253261888]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.83350124245621, 10.179744881920888, 9.13663601417211, 7.115973846306684]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [10.270963547298322, 15.406527518463975, 13.00509780450949, 9.351091716502708]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5164916414489382, 2.3538980395221403, 2.179756091359149, 1.8231288462646833]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0752617188323472, 3.2104408723180025, 3.194347916097824, 2.3638606618086087]}}