{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:05:31.348486", "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": "2016-May-21_to_2016-May-24_136.5_55.0"}, "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": 2016050002138}, "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 21 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 24 2016"}, "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": 54423.474567512974}, "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-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": ["Sea of Okhotsk"]}, "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": 55.0}, "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": 136.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "136.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 134.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 139.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 53.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 57.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-05-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[136.0, 55.75], [136.25, 55.65], [136.32, 55.68], [136.47, 56.03], [137.0, 56.25], [137.25, 56.15], [137.5, 56.25], [137.75, 56.15], [138.0, 56.25], [138.43, 56.07], [138.25, 56.5], [138.35, 56.75], [138.25, 57.0], [138.47, 57.53], [139.0, 57.75], [139.25, 57.65], [139.5, 57.75], [140.03, 57.53], [140.25, 57.0], [140.03, 56.47], [139.68, 56.32], [139.53, 55.97], [139.0, 55.75], [139.53, 55.53], [139.75, 55.0], [139.53, 54.47], [139.0, 54.25], [138.75, 54.35], [138.68, 54.32], [138.53, 53.97], [138.18, 53.82], [138.03, 53.47], [137.5, 53.25], [137.25, 53.35], [137.0, 53.25], [136.47, 53.47], [136.32, 53.82], [136.25, 53.85], [136.0, 53.75], [135.75, 53.85], [135.5, 53.75], [134.97, 53.97], [134.75, 54.5], [134.97, 55.03], [135.32, 55.18], [135.47, 55.53], [136.0, 55.75]], [[138.57, 55.93], [138.68, 55.68], [138.75, 55.65], [139.0, 55.75], [138.57, 55.93]]]]}, "2016-05-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.47, 53.97], [134.25, 54.5], [134.47, 55.03], [135.0, 55.25], [135.25, 55.15], [135.32, 55.18], [135.47, 55.53], [135.82, 55.68], [135.97, 56.03], [136.5, 56.25], [136.75, 56.15], [136.82, 56.18], [136.97, 56.53], [137.32, 56.68], [137.47, 57.03], [137.82, 57.18], [137.97, 57.53], [138.5, 57.75], [138.75, 57.65], [138.82, 57.68], [138.97, 58.03], [139.5, 58.25], [140.03, 58.03], [140.25, 57.5], [140.15, 57.25], [140.25, 57.0], [140.03, 56.47], [139.68, 56.32], [139.54, 56.0], [139.75, 55.5], [139.65, 55.25], [139.75, 55.0], [139.53, 54.47], [139.0, 54.25], [138.75, 54.35], [138.68, 54.32], [138.53, 53.97], [138.18, 53.82], [138.03, 53.47], [137.5, 53.25], [137.25, 53.35], [137.0, 53.25], [136.47, 53.47], [136.32, 53.82], [136.25, 53.85], [136.0, 53.75], [135.75, 53.85], [135.5, 53.75], [135.25, 53.85], [135.0, 53.75], [134.47, 53.97]]]]}, "2016-05-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.47, 53.97], [134.25, 54.5], [134.47, 55.03], [135.0, 55.25], [135.25, 55.15], [135.32, 55.18], [135.47, 55.53], [135.82, 55.68], [135.97, 56.03], [136.5, 56.25], [136.75, 56.15], [136.82, 56.18], [136.97, 56.53], [137.32, 56.68], [137.47, 57.03], [137.82, 57.18], [137.97, 57.53], [138.5, 57.75], [138.75, 57.65], [138.82, 57.68], [138.97, 58.03], [139.5, 58.25], [140.03, 58.03], [140.25, 57.5], [140.15, 57.25], [140.25, 57.0], [140.03, 56.47], [139.68, 56.32], [139.54, 56.0], [139.75, 55.5], [139.65, 55.25], [139.75, 55.0], [139.53, 54.47], [139.0, 54.25], [138.75, 54.35], [138.68, 54.32], [138.53, 53.97], [138.18, 53.82], [138.03, 53.47], [137.5, 53.25], [137.25, 53.35], [137.0, 53.25], [136.47, 53.47], [136.32, 53.82], [136.25, 53.85], [136.0, 53.75], [135.75, 53.85], [135.5, 53.75], [135.25, 53.85], [135.0, 53.75], [134.47, 53.97]]]]}, "2016-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.47, 53.97], [134.25, 54.5], [134.47, 55.03], [135.0, 55.25], [135.25, 55.15], [135.32, 55.18], [135.47, 55.53], [135.82, 55.68], [135.97, 56.03], [136.5, 56.25], [136.75, 56.15], [136.82, 56.18], [136.97, 56.53], [137.32, 56.68], [137.47, 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"Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [3.358613367142526, 2.872265440773854, 3.6728741814185435, 3.0796646161643904]}}