{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:15.036511", "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-04_to_2013-Dec-06_146.5_-36.5"}, "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": 2013120000246}, "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 04 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 06 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 90835.77477501232}, "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": []}, "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": -36.5}, "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": 146.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "146.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 142.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 146.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -37.75}, "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": {"2013-12-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.25, -32.5], [142.47, -31.97], [143.0, -31.75], [143.53, -31.97], [143.68, -32.32], [144.03, -32.47], [144.18, -32.82], [144.25, -32.85], [144.5, -32.75], [145.03, -32.97], [145.18, -33.32], [145.53, -33.47], [145.68, -33.82], [146.03, -33.97], [146.18, -34.32], [146.53, -34.47], [146.75, -35.0], [146.65, -35.25], [146.75, -35.5], [146.65, -35.75], [146.68, -35.82], [147.03, -35.97], [147.25, -36.5], [147.15, -36.75], [147.25, -37.0], [147.03, -37.53], [146.68, -37.68], [146.53, -38.03], [146.0, -38.25], [145.75, -38.15], [145.5, -38.25], [144.97, -38.03], [144.82, -37.68], [144.47, -37.53], [144.25, -37.0], [144.35, -36.75], [144.25, -36.5], [144.35, -36.25], [144.32, -36.18], [144.25, -36.15], [144.0, -36.25], [143.47, -36.03], [143.25, -35.5], [143.35, -35.25], [143.25, -35.0], [143.35, -34.75], [143.32, -34.68], [142.97, -34.53], [142.75, -34.0], [142.85, -33.75], [142.75, -33.5], [142.85, -33.25], [142.82, -33.18], [142.47, -33.03], [142.25, -32.5]]]]}, "2013-12-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.25, -32.5], [142.47, -31.97], [143.0, -31.75], [143.53, -31.97], [143.68, -32.32], [144.03, -32.47], [144.18, -32.82], [144.25, -32.85], [144.5, -32.75], [145.03, -32.97], [145.18, -33.32], [145.53, -33.47], [145.68, -33.82], [146.03, -33.97], [146.18, -34.32], [146.53, -34.47], [146.75, -35.0], [146.65, -35.25], [146.75, -35.5], [146.65, -35.75], [146.68, -35.82], [147.03, -35.97], [147.25, -36.5], [147.15, -36.75], [147.25, -37.0], [147.03, -37.53], [146.68, -37.68], [146.53, -38.03], [146.0, -38.25], [145.75, -38.15], [145.5, -38.25], [144.97, -38.03], [144.82, -37.68], [144.47, -37.53], [144.25, -37.0], [144.35, -36.75], [144.25, -36.5], [144.35, -36.25], [144.32, -36.18], [144.25, -36.15], [144.0, -36.25], [143.47, -36.03], [143.25, -35.5], [143.35, -35.25], [143.25, -35.0], [143.35, -34.75], [143.32, -34.68], [142.97, -34.53], [142.75, -34.0], [142.85, -33.75], [142.75, -33.5], [142.85, -33.25], [142.82, -33.18], [142.47, -33.03], [142.25, -32.5]]]]}, "2013-12-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.25, -32.5], [142.47, -31.97], [143.0, -31.75], [143.53, -31.97], [143.68, -32.32], [144.03, -32.47], [144.18, -32.82], [144.25, -32.85], [144.5, -32.75], [145.03, -32.97], [145.18, -33.32], [145.53, -33.47], [145.68, -33.82], [146.03, -33.97], [146.18, -34.32], [146.53, -34.47], [146.75, -35.0], [146.65, -35.25], [146.75, -35.5], [146.65, -35.75], [146.68, -35.82], [147.03, -35.97], [147.25, -36.5], [147.15, -36.75], [147.25, -37.0], [147.03, -37.53], [146.68, -37.68], [146.53, -38.03], [146.0, -38.25], [145.75, -38.15], [145.5, -38.25], [144.97, -38.03], [144.82, -37.68], [144.47, -37.53], [144.25, -37.0], [144.35, -36.75], [144.25, -36.5], [144.35, -36.25], [144.32, -36.18], [144.25, -36.15], [144.0, -36.25], [143.47, -36.03], [143.25, -35.5], [143.35, -35.25], [143.25, -35.0], [143.35, -34.75], [143.32, -34.68], [142.97, -34.53], [142.75, -34.0], [142.85, -33.75], [142.75, -33.5], [142.85, -33.25], [142.82, -33.18], [142.47, -33.03], [142.25, -32.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.977395024772761}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -7.101143064803925}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.863863590189283, 11.346675494365059, 14.935857943840006]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [8.068472924166826, 4.893798518477183, 8.475820891441288]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.881052613567178, -9.413038782064993, -6.009337798779608]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.967204904060395, -9.977395024772761, -7.524356972859778]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5004206967131242, -2.418191676235129, -1.5593928982816534]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.665211503357132, -2.721768201884206, -1.9674428141646048]}}