{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:05:35.256039", "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-Jun-14_to_2016-Jun-17_359.5_15.0"}, "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": 2016060000426}, "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 14 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 17 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": "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": 170298.67711842115}, "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": ["Burkina Faso", "Mali", "Niger"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara", "Western-Africa"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": 15.0}, "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": -0.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "359.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": -3.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 3.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 11.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 17.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.97, 16.53], [3.5, 16.75], [4.03, 16.53], [4.25, 16.0], [4.15, 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14.32], [0.53, 13.97], [0.18, 13.82], [0.15, 13.75], [0.25, 13.5], [0.15, 13.25], [0.25, 13.0], [0.03, 12.47], [-0.32, 12.32], [-0.47, 11.97], [-1.0, 11.75], [-1.25, 11.85], [-1.5, 11.75], [-1.75, 11.85], [-1.82, 11.82], [-1.97, 11.47], [-2.5, 11.25], [-3.03, 11.47], [-3.18, 11.82], [-3.53, 11.97], [-3.75, 12.5]]]]}, "2016-06-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-3.75, 12.5], [-3.53, 13.03], [-3.18, 13.18], [-3.04, 13.5], [-3.25, 14.0], [-3.03, 14.53], [-2.68, 14.68], [-2.53, 15.03], [-2.0, 15.25], [-1.75, 15.15], [-1.68, 15.18], [-1.65, 15.25], [-1.75, 15.5], [-1.65, 15.75], [-1.68, 15.82], [-2.03, 15.97], [-2.25, 16.5], [-2.03, 17.03], [-1.5, 17.25], [-1.25, 17.15], [-1.0, 17.25], [-0.75, 17.15], [-0.68, 17.18], [-0.53, 17.53], [0.0, 17.75], [0.25, 17.65], [0.5, 17.75], [1.03, 17.53], [1.18, 17.18], [1.5, 17.04], [2.0, 17.25], [2.53, 17.03], [2.68, 16.68], [2.75, 16.65], [3.0, 16.75], [3.25, 16.65], [3.5, 16.75], [4.03, 16.53], [4.25, 16.0], [4.15, 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{"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [33.065495311290874, 30.85554137104441, 30.76170478673663, 30.85042222295499]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.77535376772761, 27.202751221052665, 26.409574251903166, 25.97166920761572]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.0158921557129474, -2.7793840525053226, -2.826600761910115, -2.647376404386639]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.1077094826778193, -4.474256245805634, -3.794132085457477, -3.9818190958140462]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5611326943993706, -1.9113746128462132, -2.0312672618809007, -1.8667305447210276]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6203974814832782, -2.83846518366937, -2.5335298523460827, -2.791558601213599]}}