{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:33:19.460448", "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-25_to_2022-Nov-30_138.5_34.5"}, "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": 2022110002616}, "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 25 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 30 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 78269.26934692178}, "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": ["North Pacific Ocean", "Philippine 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": 34.5}, "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": 138.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "138.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 137.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 140.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 33.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 37.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-11-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.5, 35.25], [139.03, 35.03], [139.25, 34.5], [139.15, 34.25], [139.25, 34.0], [139.03, 33.47], [138.5, 33.25], [138.25, 33.35], [138.0, 33.25], [137.47, 33.47], [137.25, 34.0], [137.47, 34.53], [137.82, 34.68], [137.97, 35.03], [138.5, 35.25]]]]}, "2022-11-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.5, 35.25], [139.03, 35.03], [139.25, 34.5], [139.15, 34.25], [139.25, 34.0], [139.03, 33.47], [138.5, 33.25], [138.25, 33.35], [138.0, 33.25], [137.47, 33.47], [137.25, 34.0], [137.47, 34.53], [137.82, 34.68], [137.97, 35.03], [138.5, 35.25]]]]}, "2022-11-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[136.97, 35.53], [137.32, 35.68], [137.47, 36.03], [138.0, 36.25], [138.25, 36.15], [138.5, 36.25], [138.75, 36.15], [139.0, 36.25], [139.53, 36.03], [139.75, 35.5], [139.65, 35.25], [139.75, 35.0], [139.53, 34.47], [139.18, 34.32], [139.15, 34.25], [139.25, 34.0], [139.03, 33.47], [138.5, 33.25], [138.25, 33.35], [138.0, 33.25], [137.47, 33.47], [137.32, 33.82], [136.97, 33.97], [136.75, 34.5], [136.85, 34.75], [136.75, 35.0], [136.97, 35.53]]]]}, "2022-11-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[136.97, 35.53], [137.32, 35.68], [137.35, 35.75], [137.25, 36.0], [137.47, 36.53], [138.0, 36.75], [138.25, 36.65], [138.5, 36.75], [138.8, 36.63], [138.97, 37.03], [139.32, 37.18], [139.47, 37.53], [140.0, 37.75], [140.53, 37.53], [140.68, 37.18], [141.03, 37.03], [141.25, 36.5], [141.15, 36.25], [141.25, 36.0], [141.15, 35.75], [141.25, 35.5], [141.15, 35.25], [141.25, 35.0], [141.15, 34.75], [141.25, 34.5], [141.03, 33.97], [140.68, 33.82], [140.53, 33.47], [140.0, 33.25], [139.47, 33.47], [139.32, 33.82], [139.25, 33.85], [139.18, 33.82], [139.03, 33.47], [138.5, 33.25], [138.25, 33.35], [138.0, 33.25], [137.47, 33.47], [137.32, 33.82], [136.97, 33.97], [136.75, 34.5], [136.85, 34.75], [136.75, 35.0], [136.97, 35.53]]]]}, "2022-11-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[136.97, 35.53], [137.32, 35.68], [137.35, 35.75], [137.25, 36.0], [137.47, 36.53], [138.0, 36.75], [138.25, 36.65], [138.5, 36.75], [138.8, 36.63], [138.97, 37.03], [139.32, 37.18], [139.47, 37.53], [140.0, 37.75], [140.53, 37.53], [140.68, 37.18], [141.03, 37.03], [141.25, 36.5], [141.15, 36.25], [141.25, 36.0], [141.15, 35.75], [141.25, 35.5], [141.15, 35.25], [141.25, 35.0], [141.15, 34.75], [141.25, 34.5], [141.03, 33.97], [140.68, 33.82], [140.53, 33.47], [140.0, 33.25], [139.47, 33.47], [139.32, 33.82], [139.25, 33.85], [139.18, 33.82], [139.03, 33.47], [138.5, 33.25], [138.25, 33.35], [138.0, 33.25], [137.47, 33.47], [137.32, 33.82], [136.97, 33.97], [136.75, 34.5], [136.85, 34.75], [136.75, 35.0], [136.97, 35.53]]]]}, "2022-11-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.35, 35.75], [137.25, 36.0], [137.47, 36.53], [138.0, 36.75], [138.25, 36.65], [138.5, 36.75], [138.8, 36.63], [138.97, 37.03], [139.32, 37.18], [139.47, 37.53], [140.0, 37.75], [140.53, 37.53], [140.68, 37.18], [141.03, 37.03], 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"description": "The daily evolution of maximum t2m.", "value": [19.231345993006414, 19.55668840721944, 19.036538634663827, 20.886951706541424, 22.24341190836941, 19.98476377243702]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.942004431405678, 3.18112985775709, 3.812413176547684, 4.413906744810531, 7.239058201980685, 4.20509349455013]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.1856333309978595, 3.3465498404593177, 5.011676282747601, 6.2457196131420005, 9.318169188650415, 6.888729134941684]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3485158379295414, 1.4628524464532615, 1.5840953492722782, 1.9068587829359223, 3.1624368110364918, 1.8292188758708086]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.435525195450495, 1.5291211750006928, 1.8983481182336088, 2.5196771447169652, 3.8748640015421296, 2.6086388446654727]}}