{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:52:22.136814", "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": "2024-Jul-04_to_2024-Jul-06_116.5_-21.5"}, "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": 2024070000143}, "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": "July 04 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 06 2024"}, "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": 79521.26781937863}, "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": -21.5}, "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": 116.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "116.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 116.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 119.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -25.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -21.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-07-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.97, -20.97], [116.5, -20.75], [116.75, -20.85], [117.0, -20.75], [117.53, -20.97], [117.68, -21.32], [118.03, -21.47], [118.18, -21.82], [118.25, -21.85], [118.5, -21.75], [119.03, -21.97], [119.18, -22.32], [119.53, -22.47], [119.75, -23.0], [119.65, -23.25], [119.75, -23.5], [119.65, -23.75], [119.68, -23.82], [120.03, -23.97], [120.25, -24.5], [120.03, -25.03], [119.5, -25.25], [119.25, -25.15], [119.18, -25.18], [119.03, -25.53], [118.5, -25.75], [117.97, -25.53], [117.82, -25.18], [117.47, -25.03], [117.32, -24.68], [116.97, -24.53], [116.82, -24.18], [116.47, -24.03], [116.25, -23.5], [116.35, -23.25], [116.25, -23.0], [116.35, -22.75], [116.32, -22.68], [115.97, -22.53], [115.75, -22.0], [115.85, -21.75], [115.75, -21.5], [115.97, -20.97]]]]}, "2024-07-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.97, -20.97], [116.5, -20.75], [116.75, -20.85], [117.0, -20.75], [117.53, -20.97], [117.68, -21.32], [118.03, -21.47], [118.18, -21.82], [118.25, -21.85], [118.5, -21.75], [119.03, -21.97], [119.18, -22.32], [119.53, -22.47], [119.75, -23.0], [119.65, -23.25], [119.75, -23.5], [119.65, -23.75], [119.68, -23.82], [120.03, -23.97], [120.25, -24.5], [120.03, -25.03], [119.5, -25.25], [119.25, -25.15], [119.18, -25.18], [119.03, -25.53], [118.5, -25.75], [117.97, -25.53], [117.82, -25.18], [117.47, -25.03], [117.32, -24.68], [116.97, -24.53], [116.82, -24.18], [116.47, -24.03], [116.25, -23.5], [116.35, -23.25], [116.25, -23.0], [116.35, -22.75], [116.32, -22.68], [115.97, -22.53], [115.75, -22.0], [115.85, -21.75], [115.75, -21.5], [115.97, -20.97]]]]}, "2024-07-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.97, -20.97], [116.5, -20.75], [116.75, -20.85], [117.0, -20.75], [117.53, -20.97], [117.68, -21.32], [118.03, -21.47], [118.18, -21.82], [118.25, -21.85], [118.5, -21.75], [119.03, -21.97], [119.18, -22.32], [119.53, -22.47], [119.75, -23.0], [119.65, -23.25], [119.75, -23.5], [119.65, -23.75], [119.68, -23.82], [120.03, -23.97], [120.25, -24.5], [120.03, -25.03], [119.5, -25.25], [119.25, -25.15], [119.18, -25.18], [119.03, -25.53], [118.5, -25.75], [117.97, -25.53], [117.82, -25.18], [117.47, -25.03], [117.32, -24.68], [116.97, -24.53], [116.82, -24.18], [116.47, -24.03], [116.25, -23.5], [116.35, -23.25], [116.25, -23.0], [116.35, -22.75], [116.32, -22.68], [115.97, -22.53], [115.75, -22.0], [115.85, -21.75], [115.75, -21.5], [115.97, -20.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.949690727211021}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.045858169915342}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.829784903043674, 11.63406328420109, 12.259267609196911]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [10.711816722002197, 9.580386850536172, 10.1471392096243]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.4692619267889455, -4.652504500938422, -4.015808082018659]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.174550718416924, -4.949690727211021, -4.454100816323091]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4981638386879392, -2.0147782848694686, -1.7233412172431275]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.664592781611824, -2.3894058432244387, -2.2445201238532095]}}