{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:42.014408", "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-14_to_2011-Oct-17_141.0_37.5"}, "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": 2011100002255}, "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 14 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 17 2011"}, "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": 73179.60218689429}, "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": ["Japan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia"]}, "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": ["Japan Sea", "North Pacific Ocean"]}, "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": 37.5}, "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": 141.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "141.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 138.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 141.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 35.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 40.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-10-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.97, 36.53], [139.32, 36.68], [139.35, 36.75], [139.25, 37.0], [139.46, 37.5], [139.25, 38.0], [139.46, 38.5], [139.25, 39.0], [139.35, 39.25], [139.25, 39.5], [139.35, 39.75], [139.25, 40.0], [139.47, 40.53], [140.0, 40.75], [140.25, 40.65], [140.5, 40.75], [140.75, 40.65], [141.0, 40.75], [141.25, 40.65], [141.5, 40.75], [142.03, 40.53], [142.25, 40.0], [142.15, 39.75], [142.25, 39.5], [142.15, 39.25], [142.25, 39.0], [142.03, 38.47], [141.68, 38.32], [141.54, 38.0], [141.75, 37.5], [141.53, 36.97], [141.18, 36.82], [141.07, 36.57], [141.5, 36.75], [142.03, 36.53], [142.25, 36.0], [142.03, 35.47], [141.68, 35.32], [141.53, 34.97], [141.0, 34.75], [140.5, 34.96], [140.0, 34.75], [139.75, 34.85], [139.5, 34.75], [138.97, 34.97], [138.75, 35.5], [138.85, 35.75], [138.75, 36.0], [138.97, 36.53]]]]}, "2011-10-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.25, 36.5], [138.47, 37.03], [139.0, 37.25], [139.3, 37.13], [139.46, 37.5], [139.25, 38.0], [139.46, 38.5], [139.25, 39.0], [139.35, 39.25], [139.25, 39.5], [139.35, 39.75], [139.25, 40.0], [139.47, 40.53], [140.0, 40.75], [140.25, 40.65], [140.5, 40.75], [140.75, 40.65], [141.0, 40.75], [141.25, 40.65], [141.5, 40.75], [142.03, 40.53], [142.25, 40.0], [142.15, 39.75], [142.25, 39.5], [142.15, 39.25], [142.25, 39.0], [142.03, 38.47], [141.68, 38.32], [141.54, 38.0], [141.75, 37.5], [141.53, 36.97], [141.18, 36.82], [141.15, 36.75], [141.2, 36.63], [141.5, 36.75], [142.03, 36.53], [142.25, 36.0], [142.03, 35.47], [141.68, 35.32], [141.53, 34.97], [141.0, 34.75], [140.5, 34.96], [140.0, 34.75], [139.75, 34.85], [139.5, 34.75], [138.97, 34.97], [138.75, 35.5], [138.85, 35.75], [138.82, 35.82], [138.47, 35.97], [138.25, 36.5]]]]}, "2011-10-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.25, 36.5], [138.47, 37.03], [139.0, 37.25], [139.3, 37.13], [139.46, 37.5], [139.25, 38.0], [139.46, 38.5], [139.25, 39.0], [139.35, 39.25], [139.25, 39.5], [139.35, 39.75], [139.25, 40.0], [139.47, 40.53], [140.0, 40.75], [140.25, 40.65], [140.5, 40.75], [140.75, 40.65], [141.0, 40.75], [141.25, 40.65], [141.5, 40.75], [142.03, 40.53], [142.25, 40.0], [142.15, 39.75], [142.25, 39.5], [142.15, 39.25], [142.25, 39.0], [142.03, 38.47], [141.68, 38.32], [141.54, 38.0], [141.75, 37.5], [141.53, 36.97], [141.18, 36.82], [141.15, 36.75], [141.2, 36.63], [141.5, 36.75], [142.03, 36.53], [142.25, 36.0], [142.03, 35.47], [141.68, 35.32], [141.53, 34.97], [141.0, 34.75], [140.5, 34.96], [140.0, 34.75], [139.75, 34.85], [139.5, 34.75], [138.97, 34.97], [138.75, 35.5], [138.85, 35.75], [138.82, 35.82], [138.47, 35.97], [138.25, 36.5]]]]}, "2011-10-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.47, 35.97], [138.25, 36.5], [138.47, 37.03], [139.0, 37.25], [139.53, 37.03], [139.75, 36.5], [139.53, 35.97], [139.0, 35.75], [138.47, 35.97]]], [[[140.25, 37.5], [140.47, 38.03], [141.0, 38.25], [141.53, 38.03], [141.75, 37.5], [141.53, 36.97], [141.13, 36.8], [141.25, 36.5], [141.03, 35.97], [140.5, 35.75], [139.97, 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maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.73923633644705, 5.499717554012818, 5.021612517639312, 2.8942491790317035]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5939998215319593, 2.018005113041932, 1.7637836538371952, 1.4803331773220665]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8374616901673684, 2.5414680202370685, 2.383717542736731, 1.6923574307232245]}}