{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:36.643333", "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-Nov-22_to_2016-Nov-24_141.5_-34.0"}, "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": 2016110000727}, "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": "November 22 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 24 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": 59237.82230032008}, "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": -34.0}, "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": 141.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "141.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 139.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 143.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -34.75}, "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": {"2016-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.97, -32.47], [139.5, -32.25], [139.75, -32.35], [140.0, -32.25], [140.25, -32.35], [140.32, -32.32], [140.47, -31.97], [141.0, -31.75], [141.53, -31.97], [141.68, -32.32], [141.75, -32.35], [142.0, -32.25], [142.53, -32.47], [142.68, -32.82], [143.03, -32.97], [143.18, -33.32], [143.53, -33.47], [143.75, -34.0], [143.53, -34.53], [143.0, -34.75], [142.75, -34.65], [142.5, -34.75], [142.25, -34.65], [142.0, -34.75], [141.75, -34.65], [141.68, -34.68], [141.53, -35.03], [141.0, -35.25], [140.75, -35.15], [140.5, -35.25], [139.97, -35.03], [139.82, -34.68], [139.47, -34.53], [139.32, -34.18], [138.97, -34.03], [138.75, -33.5], [138.85, -33.25], [138.75, -33.0], [138.97, -32.47]]]]}, "2016-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.97, -32.47], [139.5, -32.25], [139.75, -32.35], [140.0, -32.25], [140.25, -32.35], [140.32, -32.32], [140.47, -31.97], [141.0, -31.75], [141.53, -31.97], [141.68, -32.32], [141.75, -32.35], [142.0, -32.25], [142.53, -32.47], [142.68, -32.82], [143.03, -32.97], [143.18, -33.32], [143.53, -33.47], [143.75, -34.0], [143.53, -34.53], [143.0, -34.75], [142.75, -34.65], [142.5, -34.75], [142.25, -34.65], [142.0, -34.75], [141.75, -34.65], [141.68, -34.68], [141.53, -35.03], [141.0, -35.25], [140.75, -35.15], [140.5, -35.25], [139.97, -35.03], [139.82, -34.68], [139.47, -34.53], [139.32, -34.18], [138.97, -34.03], [138.75, -33.5], [138.85, -33.25], [138.75, -33.0], [138.97, -32.47]]]]}, "2016-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.97, -32.47], [139.5, -32.25], [139.75, -32.35], [140.0, -32.25], [140.25, -32.35], [140.32, -32.32], [140.47, -31.97], [141.0, -31.75], [141.53, -31.97], [141.68, -32.32], [141.75, -32.35], [142.0, -32.25], [142.53, -32.47], [142.68, -32.82], [143.03, -32.97], [143.18, -33.32], [143.53, -33.47], [143.75, -34.0], [143.53, -34.53], [143.0, -34.75], [142.75, -34.65], [142.5, -34.75], [142.25, -34.65], [142.0, -34.75], [141.75, -34.65], [141.68, -34.68], [141.53, -35.03], [141.0, -35.25], [140.75, -35.15], [140.5, -35.25], [139.97, -35.03], [139.82, -34.68], [139.47, -34.53], [139.32, -34.18], [138.97, -34.03], [138.75, -33.5], [138.85, -33.25], [138.75, -33.0], [138.97, -32.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.645197824065974}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -7.066278670138222}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.570232704059777, 14.656838514127458, 16.101195269024288]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.552895219920572, 13.84103827572045, 15.273337364688643]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-7.373186272672266, -7.465313008949119, -6.36033672879328]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.645197824065974, -8.316800388582635, -7.105226014900268]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6354267473679789, -1.6474078517783848, -1.3711017822163547]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9252434780515015, -1.778182093537674, -1.468795677044033]}}