{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:36.674944", "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": "2012-Oct-25_to_2012-Oct-28_133.0_-22.5"}, "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": 2012100000979}, "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 25 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 28 2012"}, "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": 108403.06007396606}, "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"]}, "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": []}, "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": -22.5}, "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": 133.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "133.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 129.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 134.25}, "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": -19.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-10-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[129.25, -22.5], [129.47, -21.97], [129.82, -21.82], [129.97, -21.47], [130.5, -21.25], [130.75, -21.35], [131.0, -21.25], [131.53, -21.47], [131.75, -22.0], [131.65, -22.25], [131.68, -22.32], [132.03, -22.47], [132.18, -22.82], [132.53, -22.97], [132.68, -23.32], [133.03, -23.47], [133.18, -23.82], [133.53, -23.97], [133.68, -24.32], [134.03, -24.47], [134.25, -25.0], [134.03, -25.53], [133.5, -25.75], [132.97, -25.53], [132.82, -25.18], [132.75, -25.15], [132.5, -25.25], [131.97, -25.03], [131.82, -24.68], [131.75, -24.65], [131.5, -24.75], [131.25, -24.65], [131.0, -24.75], [130.47, -24.53], [130.25, -24.0], [130.35, -23.75], [130.32, -23.68], [129.97, -23.53], [129.82, -23.18], [129.47, -23.03], [129.25, -22.5]]]]}, "2012-10-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[129.25, -22.5], [129.47, -21.97], [129.82, -21.82], [129.97, -21.47], [130.5, -21.25], [130.75, -21.35], [131.0, -21.25], [131.53, -21.47], [131.7, -21.87], [131.82, -21.82], [131.97, -21.47], [132.32, -21.32], [132.46, -21.0], [132.32, -20.68], 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[130.75, -21.35], [131.0, -21.25], [131.53, -21.47], [131.7, -21.87], [131.82, -21.82], [131.97, -21.47], [132.32, -21.32], [132.46, -21.0], [132.32, -20.68], [131.97, -20.53], [131.75, -20.0], [131.97, -19.47], [132.5, -19.25], [132.75, -19.35], [133.0, -19.25], [133.53, -19.47], [133.75, -20.0], [133.65, -20.25], [133.68, -20.32], [133.75, -20.35], [134.0, -20.25], [134.53, -20.47], [134.75, -21.0], [134.65, -21.25], [134.75, -21.5], [134.54, -22.0], [134.75, -22.5], [134.54, -23.0], [134.75, -23.5], [134.53, -24.03], [134.0, -24.25], [133.75, -24.15], [133.63, -24.2], [133.68, -24.32], [134.03, -24.47], [134.25, -25.0], [134.03, -25.53], [133.5, -25.75], [132.97, -25.53], [132.82, -25.18], [132.75, -25.15], [132.5, -25.25], [131.97, -25.03], [131.82, -24.68], [131.75, -24.65], [131.5, -24.75], [131.25, -24.65], [131.0, -24.75], [130.47, -24.53], [130.25, -24.0], [130.35, -23.75], [130.32, -23.68], [129.97, -23.53], [129.82, -23.18], [129.47, -23.03], [129.25, -22.5]]]]}, "2012-10-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.32, -21.32], [132.46, -21.0], [132.32, -20.68], [131.97, -20.53], [131.75, -20.0], [131.97, -19.47], [132.5, -19.25], [132.75, -19.35], [133.0, -19.25], [133.53, -19.47], [133.75, -20.0], [133.65, -20.25], [133.68, -20.32], [133.75, -20.35], [134.0, -20.25], [134.53, -20.47], [134.75, -21.0], [134.65, -21.25], [134.75, -21.5], [134.54, -22.0], [134.75, -22.5], [134.54, -23.0], [134.75, -23.5], [134.53, -24.03], [134.0, -24.25], [133.75, -24.15], [133.5, -24.25], [132.97, -24.03], [132.82, -23.68], [132.47, -23.53], [132.32, -23.18], [132.25, -23.15], [132.0, -23.25], [131.47, -23.03], [131.25, -22.5], [131.47, -21.97], [131.82, -21.82], [131.97, -21.47], [132.32, -21.32]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.570648636824501}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.925873870226199}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.16238201681989, 20.054798450614953, 21.745415684243255, 22.893774199173265]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.31914353827932, 15.713799197870856, 17.800723460837787, 19.52463137626785]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.703050408811963, -7.184063534002121, -5.494207780928404, -4.556020193990591]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.906258548414598, -9.570648636824501, -7.422730941493171, -5.603287899728343]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7171065039307263, -2.202993180273897, -1.6239363255488615, -1.37367753952774]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.2920289576948183, -2.7306735612131683, -1.9735070022734527, -1.537306860875053]}}