{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:46.602594", "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": "2016-Dec-13_to_2016-Dec-15_126.0_-29.0"}, "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": 2016120000439}, "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 13 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 15 2016"}, "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": 56584.20820499917}, "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": []}, "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": -29.0}, "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": 126.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "126.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 125.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 128.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -30.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -27.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-12-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.35, -29.25], [125.25, -29.0], [125.35, -28.75], [125.25, -28.5], [125.47, -27.97], [126.0, -27.75], [126.25, -27.85], [126.32, -27.82], [126.35, -27.75], [126.25, -27.5], [126.47, -26.97], [127.0, -26.75], [127.53, -26.97], [127.75, -27.5], [127.65, -27.75], [127.75, -28.0], [127.65, -28.25], [127.68, -28.32], [128.03, -28.47], [128.18, -28.82], [128.53, -28.97], [128.75, -29.5], [128.53, -30.03], [128.18, -30.18], [128.15, -30.25], [128.25, -30.5], [128.03, -31.03], [127.5, -31.25], [127.25, -31.15], [127.0, -31.25], [126.75, -31.15], [126.5, -31.25], [125.97, -31.03], [125.82, -30.68], [125.47, -30.53], [125.25, -30.0], [125.35, -29.75], [125.25, -29.5], [125.35, -29.25]]]]}, "2016-12-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.35, -29.25], [125.25, -29.0], [125.35, -28.75], [125.25, -28.5], [125.47, -27.97], [126.0, -27.75], [126.25, -27.85], [126.32, -27.82], [126.35, -27.75], [126.25, -27.5], [126.47, -26.97], [127.0, -26.75], [127.53, -26.97], [127.75, -27.5], [127.65, -27.75], [127.75, -28.0], [127.65, -28.25], [127.68, -28.32], [128.03, -28.47], [128.18, -28.82], [128.53, -28.97], [128.75, -29.5], [128.53, -30.03], [128.18, -30.18], [128.15, -30.25], [128.25, -30.5], [128.03, -31.03], [127.5, -31.25], [127.25, -31.15], [127.0, -31.25], [126.75, -31.15], [126.5, -31.25], [125.97, -31.03], [125.82, -30.68], [125.47, -30.53], [125.25, -30.0], [125.35, -29.75], [125.25, -29.5], [125.35, -29.25]]]]}, "2016-12-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[125.35, -29.25], [125.25, -29.0], [125.35, -28.75], [125.25, -28.5], [125.47, -27.97], [126.0, -27.75], [126.25, -27.85], [126.32, -27.82], [126.35, -27.75], [126.25, -27.5], [126.47, -26.97], [127.0, -26.75], [127.53, -26.97], [127.75, -27.5], [127.65, -27.75], [127.75, -28.0], [127.65, -28.25], [127.68, -28.32], [128.03, -28.47], [128.18, -28.82], [128.53, -28.97], [128.75, -29.5], [128.53, -30.03], [128.18, -30.18], [128.15, -30.25], [128.25, -30.5], [128.03, -31.03], [127.5, -31.25], [127.25, -31.15], [127.0, -31.25], [126.75, -31.15], [126.5, -31.25], [125.97, -31.03], [125.82, -30.68], [125.47, -30.53], [125.25, -30.0], [125.35, -29.75], [125.25, -29.5], [125.35, -29.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.013460479606863}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -7.122868758940582}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.86218594743133, 17.506102352924188, 18.41595439933303]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.964650619502493, 16.74715237806896, 17.287614809971444]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.937806307409855, -7.607578937490222, -6.82322103192167]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.820131509564135, -9.013460479606863, -7.74581903942061]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.59587867736676, -1.6562774652256498, -1.4307817471255428]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.959152670179986, -1.9889993917667477, -1.556404268082625]}}