{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:05.450523", "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": "2014-Aug-23_to_2014-Aug-27_44.5_-23.5"}, "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": 2014080000985}, "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 23 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 27 2014"}, "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": 74089.1448872351}, "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": ["Madagascar"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Madagascar"]}, "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": -23.5}, "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": 44.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "44.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 43.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 45.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -25.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -20.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-08-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.47, -24.03], [43.25, -23.5], [43.47, -22.97], [44.0, 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[44.75, -20.35], [45.0, -20.25], [45.53, -20.47], [45.75, -21.0], [45.65, -21.25], [45.75, -21.5], [45.53, -22.03], [45.18, -22.18], [45.15, -22.25], [45.18, -22.32], [45.53, -22.47], [45.75, -23.0], [45.65, -23.25], [45.68, -23.32], [46.03, -23.47], [46.25, -24.0], [46.03, -24.53], [45.68, -24.68], [45.65, -24.75], [45.75, -25.0], [45.53, -25.53], [45.0, -25.75], [44.47, -25.53], [44.32, -25.18], [43.97, -25.03], [43.82, -24.68], [43.47, -24.53], [43.25, -24.0], [43.35, -23.75], [43.25, -23.5], [43.35, -23.25], [43.32, -23.18], [42.97, -23.03], [42.75, -22.5], [42.85, -22.25], [42.75, -22.0], [42.85, -21.75]]]]}, "2014-08-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, -21.75], [42.75, -21.5], [42.97, -20.97], [43.32, -20.82], [43.47, -20.47], [44.0, -20.25], [44.25, -20.35], [44.5, -20.25], [44.75, -20.35], [45.0, -20.25], [45.53, -20.47], [45.75, -21.0], [45.65, -21.25], [45.75, -21.5], [45.53, -22.03], [45.18, -22.18], [45.15, -22.25], [45.18, -22.32], 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{"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.3393108775940163, -2.5353934026375233, -3.054472741517416, -3.3673987779566037, -2.683149790081595]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.3866709228096283, -3.2681700532045284, -4.013441485814383, -4.349852009647236, -3.79832918635492]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3526093346581893, -1.5389036917775327, -1.8346279842277147, -2.0603715672417775, -1.6083840818870794]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3629243870327448, -1.8312507055649918, -2.3930956376663484, -2.891421327718172, -1.9436259634332733]}}