{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:36:41.330087", "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": "2023-Oct-25_to_2023-Oct-27_136.5_-23.5"}, "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": 2023100000459}, "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 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 27 2023"}, "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": 144696.75981987367}, "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": -23.5}, "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": 136.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "136.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 133.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 138.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -28.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -23.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-10-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.47, -24.97], [134.0, -24.75], [134.25, -24.85], 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[[[[133.47, -24.97], [134.0, -24.75], [134.25, -24.85], [134.32, -24.82], [134.47, -24.47], [134.82, -24.32], [134.85, -24.25], [134.75, -24.0], [134.97, -23.47], [135.32, -23.32], [135.47, -22.97], [136.0, -22.75], [136.25, -22.85], [136.5, -22.75], [137.03, -22.97], [137.18, -23.32], [137.53, -23.47], [137.68, -23.82], [138.03, -23.97], [138.25, -24.5], [138.15, -24.75], [138.18, -24.82], [138.53, -24.97], [138.75, -25.5], [138.65, -25.75], [138.75, -26.0], [138.53, -26.53], [138.18, -26.68], [138.03, -27.03], [137.68, -27.18], [137.65, -27.25], [137.75, -27.5], [137.53, -28.03], [137.18, -28.18], [137.15, -28.25], [137.25, -28.5], [137.03, -29.03], [136.5, -29.25], [135.97, -29.03], [135.82, -28.68], [135.47, -28.53], [135.25, -28.0], [135.35, -27.75], [135.32, -27.68], [135.25, -27.65], [135.0, -27.75], [134.47, -27.53], [134.32, -27.18], [133.97, -27.03], [133.82, -26.68], [133.47, -26.53], [133.25, -26.0], [133.35, -25.75], [133.25, -25.5], [133.47, -24.97]]]]}, "2023-10-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[133.47, -24.97], [134.0, -24.75], [134.25, -24.85], [134.32, -24.82], [134.47, -24.47], [134.82, -24.32], [134.85, -24.25], [134.75, -24.0], [134.97, -23.47], [135.32, -23.32], [135.47, -22.97], [136.0, -22.75], [136.25, -22.85], [136.5, -22.75], [137.03, -22.97], [137.18, -23.32], [137.53, -23.47], [137.68, -23.82], [138.03, -23.97], [138.25, -24.5], [138.15, -24.75], [138.18, -24.82], [138.53, -24.97], [138.75, -25.5], [138.65, -25.75], [138.75, -26.0], [138.53, -26.53], [138.18, -26.68], [138.03, -27.03], [137.68, -27.18], [137.65, -27.25], [137.75, -27.5], [137.53, -28.03], [137.18, -28.18], [137.15, -28.25], [137.25, -28.5], [137.03, -29.03], [136.5, -29.25], [135.97, -29.03], [135.82, -28.68], [135.47, -28.53], [135.25, -28.0], [135.35, -27.75], [135.32, -27.68], [135.25, -27.65], [135.0, -27.75], [134.47, -27.53], [134.32, -27.18], [133.97, -27.03], [133.82, -26.68], [133.47, -26.53], [133.25, -26.0], 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anomalies.", "value": [-6.6627765340743395, -7.785109519231696, -7.299942516487931]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3959336452703812, -1.6686802959007447, -1.4839655290774585]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4630167758382815, -1.76199513172143, -1.7796632281181268]}}