{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:17.240095", "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": "2013-Dec-19_to_2013-Dec-22_120.0_-32.5"}, "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": 2013120000773}, "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 19 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 22 2013"}, "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": 51683.853447578076}, "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": ["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": ["Great Australian Bight"]}, "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": -32.5}, "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": 120.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "120.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 117.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 121.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -34.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -32.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-12-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.25, -33.0], [117.47, -32.47], [118.0, -32.25], [118.25, -32.35], [118.32, -32.32], [118.47, -31.97], [119.0, -31.75], [119.25, -31.85], [119.5, -31.75], [119.75, -31.85], [120.0, -31.75], [120.53, -31.97], [120.68, -32.32], [120.75, -32.35], [121.0, -32.25], [121.53, -32.47], [121.75, -33.0], [121.65, -33.25], [121.75, -33.5], [121.53, -34.03], [121.0, -34.25], [120.75, -34.15], [120.5, -34.25], [120.25, -34.15], [120.18, -34.18], [120.03, -34.53], [119.5, -34.75], [119.25, -34.65], [119.0, -34.75], [118.47, -34.53], [118.32, -34.18], [117.97, -34.03], [117.82, -33.68], [117.47, -33.53], [117.25, -33.0]]]]}, "2013-12-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.25, -33.0], [117.47, -32.47], [118.0, -32.25], [118.25, -32.35], [118.32, -32.32], [118.47, -31.97], [119.0, -31.75], [119.25, -31.85], [119.5, -31.75], [119.75, -31.85], [120.0, -31.75], [120.53, -31.97], [120.68, -32.32], [120.75, -32.35], [121.0, -32.25], [121.53, -32.47], [121.75, -33.0], [121.65, -33.25], [121.75, -33.5], [121.53, -34.03], [121.18, -34.18], [121.03, -34.53], [120.5, -34.75], [120.25, -34.65], [120.0, -34.75], [119.75, -34.65], [119.5, -34.75], [119.25, -34.65], [119.0, -34.75], [118.47, -34.53], [118.32, -34.18], [117.97, -34.03], [117.82, -33.68], [117.47, -33.53], [117.25, -33.0]]]]}, "2013-12-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.25, -33.0], [117.47, -32.47], [118.0, -32.25], [118.25, -32.35], [118.32, -32.32], [118.47, -31.97], [119.0, -31.75], [119.25, -31.85], [119.5, -31.75], [119.75, -31.85], [120.0, -31.75], [120.53, -31.97], [120.68, -32.32], [120.75, -32.35], [121.0, -32.25], [121.53, -32.47], [121.75, -33.0], [121.65, -33.25], [121.75, -33.5], [121.53, -34.03], [121.18, -34.18], [121.03, -34.53], [120.5, -34.75], [120.25, -34.65], [120.0, -34.75], [119.75, -34.65], [119.5, -34.75], [119.25, -34.65], [119.0, -34.75], [118.47, -34.53], [118.32, -34.18], [117.97, -34.03], [117.82, -33.68], [117.47, -33.53], [117.25, -33.0]]]]}, "2013-12-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.47, -34.53], [119.25, -34.0], [119.47, -33.47], [120.0, -33.25], [120.25, -33.35], [120.5, -33.25], [121.03, -33.47], [121.25, -34.0], [121.03, -34.53], [120.5, -34.75], [120.25, -34.65], [120.0, -34.75], [119.47, -34.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.195059273599611}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.055363328142599}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [15.83621420136376, 14.444568503283108, 14.984071641770242, 16.435054676725827]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.510859597195065, 12.616523330703842, 13.949397452975234, 16.420206144564247]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.538805161435795, -5.723841401897076, -5.139828533572785, -2.1749540366571978]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.05076606316743, -8.195059273599611, -6.543774507249964, -2.2024032296861833]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2662521662797865, -1.6752547830479059, -1.649167132762439, -1.079333789659193]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4489918720781207, -2.145982697067809, -1.8729998957043685, -1.1040055144110048]}}