{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:49.657947", "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": "2010-Oct-18_to_2010-Oct-21_312.0_-25.5"}, "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": 2010100000722}, "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": "October 18 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 21 2010"}, "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": 125182.66017483601}, "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": ["Brazil"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.South-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["South America"]}, "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": ["South Atlantic Ocean"]}, "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": -25.5}, "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": 312.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "312.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 310.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 316.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -29.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -23.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-10-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-49.18, -28.32], [-49.15, -28.25], [-49.25, -28.0], 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[-48.18, -24.82], [-48.03, -24.47], [-47.68, -24.32], [-47.65, -24.25], [-47.75, -24.0], [-47.53, -23.47], [-47.0, -23.25], [-46.75, -23.35], [-46.5, -23.25], [-46.25, -23.35], [-46.0, -23.25], [-45.75, -23.35], [-45.68, -23.32], [-45.53, -22.97], [-45.0, -22.75], [-44.47, -22.97], [-44.32, -23.32], [-44.25, -23.35], [-44.0, -23.25], [-43.47, -23.47], [-43.25, -24.0], [-43.47, -24.53], [-43.82, -24.68], [-43.85, -24.75], [-43.75, -25.0], [-43.97, -25.53], [-44.5, -25.75], [-44.75, -25.65], [-44.82, -25.68], [-44.97, -26.03], [-45.5, -26.25], [-45.75, -26.15], [-45.82, -26.18], [-45.97, -26.53], [-46.5, -26.75], [-46.75, -26.65], [-46.82, -26.68], [-46.85, -26.75], [-46.75, -27.0], [-46.85, -27.25], [-46.75, -27.5], [-46.97, -28.03], [-47.32, -28.18], [-47.47, -28.53], [-47.82, -28.68], [-47.85, -28.75], [-47.75, -29.0], [-47.97, -29.53], [-48.32, -29.68], [-48.47, -30.03], [-49.0, -30.25], [-49.25, -30.15], [-49.5, -30.25], [-50.03, -30.03], [-50.25, -29.5], [-50.03, -28.97], [-49.68, -28.82], [-49.53, -28.47], [-49.18, -28.32]]]]}, "2010-10-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-49.18, -28.32], [-49.15, -28.25], [-49.25, -28.0], [-49.04, -27.5], [-49.25, -27.0], [-49.03, -26.47], [-48.68, -26.32], [-48.65, -26.25], [-48.75, -26.0], [-48.65, -25.75], [-48.75, -25.5], [-48.53, -24.97], [-48.18, -24.82], [-48.03, -24.47], [-47.68, -24.32], [-47.65, -24.25], [-47.75, -24.0], [-47.53, -23.47], [-47.0, -23.25], [-46.75, -23.35], [-46.5, -23.25], [-46.25, -23.35], [-46.0, -23.25], [-45.75, -23.35], [-45.68, -23.32], [-45.53, -22.97], [-45.0, -22.75], [-44.47, -22.97], [-44.32, -23.32], [-44.25, -23.35], [-44.0, -23.25], [-43.47, -23.47], [-43.25, -24.0], [-43.47, -24.53], [-43.82, -24.68], [-43.85, -24.75], [-43.75, -25.0], [-43.97, -25.53], [-44.5, -25.75], [-44.75, -25.65], [-44.82, -25.68], [-44.97, -26.03], [-45.5, -26.25], [-45.75, -26.15], [-45.82, -26.18], [-45.97, -26.53], [-46.5, -26.75], [-46.75, -26.65], [-46.82, -26.68], [-46.85, 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-26.03], [-45.5, -26.25], [-45.75, -26.15], [-45.82, -26.18], [-45.97, -26.53], [-46.5, -26.75], [-46.75, -26.65], [-46.82, -26.68], [-46.97, -27.03], [-47.5, -27.25], [-48.03, -27.03], [-48.18, -26.68], [-48.53, -26.53], [-48.75, -26.0], [-48.65, -25.75], [-48.75, -25.5], [-48.53, -24.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.784094683256342}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.8776425123251537}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.850448352621015, 19.10803685691195, 19.161607319422615, 19.84883004560095]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.542164961055107, 16.387613309821518, 16.150863934391282, 16.466433175325847]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.5642394615287982, -2.0357552439005997, -1.959697430800189, -1.7161959705146135]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.9045592977976185, -3.6613630208486825, -3.784094683256342, -3.4251880493254134]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4087462569570106, -1.7847370042840545, -1.7410174496750637, -1.5258390521114242]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5105797019464857, -2.212160487740672, -2.1017327925790767, -2.0523478830139767]}}