{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:20:18.547010", "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-Jun-19_to_2020-Jun-21_36.5_29.0"}, "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": 2020060000584}, "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": "June 19 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 21 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": "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": 72642.68037819237}, "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": ["Saudi Arabia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula", "Mediterranean"]}, "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": 29.0}, "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": 36.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "36.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 35.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 40.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 28.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 31.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-06-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.5, 29.75], [36.8, 29.63], [36.97, 30.03], [37.5, 30.25], 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[38.75, 30.5], [38.85, 30.75], [38.75, 31.0], [38.85, 31.25], [38.75, 31.5], [38.97, 32.03], [39.5, 32.25], [39.75, 32.15], [40.0, 32.25], [40.53, 32.03], [40.75, 31.5], [40.65, 31.25], [40.75, 31.0], [40.65, 30.75], [40.75, 30.5], [40.65, 30.25], [40.75, 30.0], [40.65, 29.75], [40.75, 29.5], [40.65, 29.25], [40.75, 29.0], [40.53, 28.47], [40.18, 28.32], [40.03, 27.97], [39.5, 27.75], [39.25, 27.85], [39.0, 27.75], [38.75, 27.85], [38.5, 27.75], [38.25, 27.85], [38.0, 27.75], [37.5, 27.96], [37.0, 27.75], [36.75, 27.85], [36.5, 27.75], [36.25, 27.85], [36.0, 27.75], [35.47, 27.97], [35.25, 28.5], [35.47, 29.03], [35.82, 29.18], [35.97, 29.53], [36.5, 29.75]]]]}, "2020-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.5, 29.75], [36.8, 29.63], [36.97, 30.03], [37.5, 30.25], [37.75, 30.15], [38.0, 30.25], [38.25, 30.15], [38.5, 30.25], [38.8, 30.13], [38.85, 30.25], [38.75, 30.5], [38.85, 30.75], [38.75, 31.0], [38.85, 31.25], [38.75, 31.5], [38.97, 32.03], [39.5, 32.25], [39.75, 32.15], [40.0, 32.25], [40.53, 32.03], [40.75, 31.5], [40.65, 31.25], [40.75, 31.0], [40.65, 30.75], [40.75, 30.5], [40.65, 30.25], [40.75, 30.0], [40.65, 29.75], [40.75, 29.5], [40.65, 29.25], [40.75, 29.0], [40.53, 28.47], [40.18, 28.32], [40.03, 27.97], [39.5, 27.75], [39.25, 27.85], [39.0, 27.75], [38.75, 27.85], [38.5, 27.75], [38.25, 27.85], [38.0, 27.75], [37.5, 27.96], [37.0, 27.75], [36.75, 27.85], [36.5, 27.75], [36.25, 27.85], [36.0, 27.75], [35.47, 27.97], [35.25, 28.5], [35.47, 29.03], [35.82, 29.18], [35.97, 29.53], [36.5, 29.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.029627546034533}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.274044705370714}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.220970547794195, 26.01652139951358, 27.451389999887738]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.41366906905273, 24.210018068093916, 26.215780223584318]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.857033320662321, -4.162484687067353, -2.802616108382467]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.771917735232762, -5.029627546034533, -3.262666816159367]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.514770997542482, -2.188588276003636, -1.4587151287095852]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9309399403812735, -2.564086997059341, -1.706843001794515]}}