{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:42.830817", "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-Feb-07_to_2016-Feb-09_24.5_28.0"}, "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": 2016020000251}, "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": "February 07 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 09 2016"}, "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": 105107.53573580887}, "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": ["Egypt", "Libya"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": 28.0}, "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": 24.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "24.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 22.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 29.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 23.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 28.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-02-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[22.35, 27.75], [22.25, 28.0], [22.47, 28.53], [23.0, 28.75], 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[22.25, 27.0], [22.35, 27.25], [22.25, 27.5], [22.35, 27.75]]]]}, "2016-02-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[22.35, 27.75], [22.25, 28.0], [22.47, 28.53], [23.0, 28.75], [23.25, 28.65], [23.32, 28.68], [23.47, 29.03], [24.0, 29.25], [24.25, 29.15], [24.5, 29.25], [25.03, 29.03], [25.18, 28.68], [25.53, 28.53], [25.68, 28.18], [26.0, 28.04], [26.5, 28.25], [27.03, 28.03], [27.25, 27.5], [27.04, 27.0], [27.25, 26.5], [27.15, 26.25], [27.18, 26.18], [27.5, 26.04], [28.0, 26.25], [28.53, 26.03], [28.68, 25.68], [28.75, 25.65], [28.82, 25.68], [28.97, 26.03], [29.5, 26.25], [30.03, 26.03], [30.25, 25.5], [30.15, 25.25], [30.25, 25.0], [30.03, 24.47], [29.5, 24.25], [29.25, 24.35], [29.0, 24.25], [28.75, 24.35], [28.68, 24.32], [28.53, 23.97], [28.18, 23.82], [28.03, 23.47], [27.5, 23.25], [26.97, 23.47], [26.75, 24.0], [26.85, 24.25], [26.75, 24.5], [26.85, 24.75], [26.82, 24.82], [26.75, 24.85], [26.5, 24.75], [26.25, 24.85], [26.0, 24.75], [25.47, 24.97], 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"The daily evolution of maximum t2m.", "value": [7.97349870802924, 7.697821920835906, 8.608221204533436]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.47123683262129, -4.113922849376341, -3.2103738376501654]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.118379255375828, -4.763954686939314, -3.9156279591596785]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2094981865095025, -1.4772737979882875, -1.1969636217252575]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3744350479176366, -1.8432681083334639, -1.3550182824154051]}}