{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:18:41.606577", "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": "2020-Jan-21_to_2020-Jan-23_131.0_43.5"}, "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": 2020010002092}, "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": "January 21 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 23 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 73041.33972362144}, "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": ["China", "North Korea", "Russian Federation"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia", "Russian-Far-East"]}, "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": []}, "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": 43.5}, "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": 131.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "131.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 127.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 133.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 41.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 46.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-01-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.35, 43.25], [127.25, 43.5], [127.47, 44.03], [128.0, 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41.75], [127.47, 41.97], [127.25, 42.5], [127.35, 42.75], [127.25, 43.0], [127.35, 43.25]]]]}, "2020-01-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.35, 43.25], [127.25, 43.5], [127.47, 44.03], [128.0, 44.25], [128.25, 44.15], [128.5, 44.25], [128.75, 44.15], [129.0, 44.25], [129.25, 44.15], [129.32, 44.18], [129.47, 44.53], [129.82, 44.68], [129.97, 45.03], [130.38, 45.2], [130.25, 45.5], [130.35, 45.75], [130.25, 46.0], [130.47, 46.53], [131.0, 46.75], [131.25, 46.65], [131.5, 46.75], [131.75, 46.65], [132.0, 46.75], [132.25, 46.65], [132.5, 46.75], [132.75, 46.65], [133.0, 46.75], [133.53, 46.53], [133.75, 46.0], [133.65, 45.75], [133.75, 45.5], [133.65, 45.25], [133.75, 45.0], [133.65, 44.75], [133.75, 44.5], [133.53, 43.97], [133.0, 43.75], [132.75, 43.85], [132.5, 43.75], [131.97, 43.97], [131.8, 44.38], [131.68, 44.32], [131.65, 44.25], [131.75, 44.0], [131.65, 43.75], [131.75, 43.5], [131.53, 42.97], [131.0, 42.75], [130.75, 42.85], [130.5, 42.75], 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"evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-8.045550191634902, -4.749321307116986, -6.481950915054995]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.9116961327903965, 8.252503518210716, 6.623781076120532]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.55379622237021, 10.201743378869082, 8.344176160251521]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5950761927573853, 1.9176214172266919, 1.5592478681749269]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.12558910352996, 2.263947433978875, 1.8838444994478436]}}