{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:16.512516", "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": "2019-Aug-05_to_2019-Aug-09_87.0_36.5"}, "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": 2019080000191}, "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": "August 05 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 09 2019"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 109451.35605986346}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Tibetan-Plateau"]}, "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": 36.5}, "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": 87.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "87.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 84.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 88.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 31.75}, "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": {"2019-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[84.97, 31.97], [84.75, 32.5], [84.97, 33.03], [85.5, 33.25], 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32.0], [84.85, 32.25], [84.82, 32.32], [84.47, 32.47], [84.25, 33.0], [84.35, 33.25], [84.25, 33.5], [84.46, 34.0]]]]}, "2019-08-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[84.46, 34.0], [84.25, 34.5], [84.47, 35.03], [84.82, 35.18], [84.85, 35.25], [84.75, 35.5], [84.97, 36.03], [85.32, 36.18], [85.35, 36.25], [85.25, 36.5], [85.47, 37.03], [86.0, 37.25], [86.25, 37.15], [86.32, 37.18], [86.47, 37.53], [87.0, 37.75], [87.53, 37.53], [87.75, 37.0], [87.65, 36.75], [87.68, 36.68], [88.03, 36.53], [88.25, 36.0], [88.15, 35.75], [88.18, 35.68], [88.25, 35.65], [88.5, 35.75], [89.03, 35.53], [89.25, 35.0], [89.03, 34.47], [88.68, 34.32], [88.53, 33.97], [88.18, 33.82], [88.03, 33.47], [87.5, 33.25], [87.25, 33.35], [87.18, 33.32], [87.03, 32.97], [86.68, 32.82], [86.65, 32.75], [86.68, 32.68], [87.03, 32.53], [87.25, 32.0], [87.03, 31.47], [86.5, 31.25], [86.25, 31.35], [86.0, 31.25], [85.75, 31.35], [85.5, 31.25], [84.97, 31.47], [84.75, 32.0], [84.85, 32.25], 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