{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:01:53.058952", "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-Dec-14_to_2014-Dec-17_113.5_-28.5"}, "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": 2014120000665}, "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": "December 14 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 17 2014"}, "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": 68245.69169340082}, "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": ["Australia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.Australia", "S.Australia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Australia"]}, "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": ["Indian 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": -28.5}, "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": 113.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "113.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 112.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 115.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -31.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -25.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-12-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[112.25, -28.0], [112.47, -27.47], [113.0, -27.25], [113.53, -27.47], [113.68, -27.82], [114.03, -27.97], [114.25, -28.5], [114.03, -29.03], [113.5, -29.25], [112.97, -29.03], [112.82, -28.68], [112.47, -28.53], [112.25, -28.0]]]]}, "2014-12-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.85, -25.75], [111.75, -25.5], [111.97, -24.97], [112.5, -24.75], [112.75, -24.85], [113.0, -24.75], [113.53, -24.97], [113.75, -25.5], [113.65, -25.75], [113.68, -25.82], [114.03, -25.97], [114.25, -26.5], [114.15, -26.75], [114.18, -26.82], [114.53, -26.97], [114.75, -27.5], [114.65, -27.75], [114.68, -27.82], [115.03, -27.97], [115.18, -28.32], [115.53, -28.47], [115.75, -29.0], [115.65, -29.25], [115.75, -29.5], [115.65, -29.75], [115.75, -30.0], [115.65, -30.25], [115.68, -30.32], [116.03, -30.47], [116.25, -31.0], [116.03, -31.53], [115.5, -31.75], [114.97, -31.53], [114.82, -31.18], [114.47, -31.03], [114.25, -30.5], [114.35, -30.25], [114.32, -30.18], [113.97, -30.03], [113.82, -29.68], [113.47, -29.53], [113.32, -29.18], [112.97, -29.03], [112.82, -28.68], [112.47, -28.53], [112.25, -28.0], [112.46, -27.5], [112.32, -27.18], [111.97, -27.03], [111.75, -26.5], [111.85, -26.25], [111.75, -26.0], [111.85, -25.75]]]]}, "2014-12-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.85, -25.75], [111.75, -25.5], [111.97, -24.97], [112.5, -24.75], [112.75, -24.85], [113.0, -24.75], [113.53, -24.97], [113.75, -25.5], [113.65, -25.75], [113.68, -25.82], [114.03, -25.97], [114.25, -26.5], [114.15, -26.75], [114.18, -26.82], [114.53, -26.97], [114.75, -27.5], [114.65, -27.75], [114.68, -27.82], [115.03, -27.97], [115.18, -28.32], [115.53, -28.47], [115.75, -29.0], [115.65, -29.25], [115.75, -29.5], [115.65, -29.75], [115.75, -30.0], [115.65, -30.25], [115.68, -30.32], [116.03, -30.47], [116.25, -31.0], [116.03, -31.53], [115.5, -31.75], [114.97, -31.53], [114.82, -31.18], [114.47, -31.03], [114.25, -30.5], [114.35, -30.25], [114.32, -30.18], [113.97, -30.03], [113.82, -29.68], [113.47, -29.53], [113.32, -29.18], [112.97, -29.03], [112.82, -28.68], [112.47, -28.53], [112.25, -28.0], [112.46, -27.5], [112.32, -27.18], [111.97, -27.03], [111.75, -26.5], [111.85, -26.25], [111.75, -26.0], [111.85, -25.75]]]]}, "2014-12-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[111.85, -25.75], [111.75, -25.5], [111.97, -24.97], [112.5, -24.75], [112.75, -24.85], [113.0, -24.75], [113.53, -24.97], [113.75, -25.5], [113.65, -25.75], [113.68, -25.82], [114.03, -25.97], [114.25, -26.5], [114.15, -26.75], [114.18, -26.82], [114.53, -26.97], [114.75, -27.5], [114.65, -27.75], [114.68, -27.82], [115.03, -27.97], [115.18, -28.32], [115.53, -28.47], [115.75, -29.0], [115.65, -29.25], [115.75, -29.5], [115.65, -29.75], [115.75, -30.0], [115.65, -30.25], [115.68, -30.32], [116.03, -30.47], [116.25, -31.0], [116.03, -31.53], [115.5, -31.75], [114.97, -31.53], [114.82, -31.18], [114.47, -31.03], [114.25, -30.5], [114.35, -30.25], [114.32, -30.18], [113.97, -30.03], [113.82, -29.68], [113.47, -29.53], [113.32, -29.18], [112.97, -29.03], [112.75, -28.5], [112.85, -28.25], [112.75, -28.0], [112.85, -27.75], [112.82, -27.68], [112.47, -27.53], [112.32, -27.18], [111.97, -27.03], [111.75, -26.5], [111.85, -26.25], [111.75, -26.0], [111.85, -25.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.820000062379904}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.2441965124253525}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.384132404707827, 19.6382750142306, 19.54599173599695, 19.620353690490845]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.331993102049466, 18.46370605172575, 18.36159717779333, 18.70434898707225]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.7862565613515358, -2.2368288832595544, -2.290157211917367, -2.2421570600916945]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.8203016698245165, -4.820000062379904, -4.089041039988217, -4.291015256346043]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.19549004364355, -1.224464769428914, -1.3054408243159994, -1.3092902784326939]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.205191752557451, -1.4058831368251012, -1.6209091237007072, -1.4442040131099647]}}