{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:52:49.106506", "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-Aug-03_to_2024-Aug-05_125.5_-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": 2024080000138}, "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": "August 03 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 05 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": 51913.32889434254}, "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": -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": 125.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "125.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 121.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 126.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -29.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -26.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.47, -25.97], [122.0, -25.75], [122.53, -25.97], [122.68, -26.32], [122.75, -26.35], [123.0, -26.25], [123.25, -26.35], [123.5, -26.25], [123.75, -26.35], [124.0, -26.25], [124.53, -26.47], [124.68, -26.82], [125.03, -26.97], [125.18, -27.32], [125.53, -27.47], [125.68, -27.82], [126.03, -27.97], [126.18, -28.32], [126.53, -28.47], [126.75, -29.0], [126.65, -29.25], [126.75, -29.5], [126.53, -30.03], [126.0, -30.25], [125.47, -30.03], [125.32, -29.68], [125.25, -29.65], [125.0, -29.75], [124.47, -29.53], [124.32, -29.18], [123.97, -29.03], [123.8, -28.62], [123.5, -28.75], [122.97, -28.53], [122.82, -28.18], [122.47, -28.03], [122.32, -27.68], [122.25, -27.65], [122.0, -27.75], [121.47, -27.53], [121.25, -27.0], [121.35, -26.75], [121.25, -26.5], [121.47, -25.97]]]]}, "2024-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.47, -25.97], [122.0, -25.75], [122.53, -25.97], [122.68, -26.32], [122.75, -26.35], [123.0, -26.25], [123.25, -26.35], [123.5, -26.25], [123.75, -26.35], [124.0, -26.25], [124.53, -26.47], [124.68, -26.82], [125.03, -26.97], [125.18, -27.32], [125.53, -27.47], [125.68, -27.82], [126.03, -27.97], [126.18, -28.32], [126.53, -28.47], [126.75, -29.0], [126.65, -29.25], [126.75, -29.5], [126.53, -30.03], [126.0, -30.25], [125.47, -30.03], [125.32, -29.68], [125.25, -29.65], [125.0, -29.75], [124.47, -29.53], [124.32, -29.18], [123.97, -29.03], [123.8, -28.62], [123.5, -28.75], [122.97, -28.53], [122.82, -28.18], [122.47, -28.03], [122.32, -27.68], [122.25, -27.65], [122.0, -27.75], [121.47, -27.53], [121.25, -27.0], [121.35, -26.75], [121.25, -26.5], [121.47, -25.97]]]]}, "2024-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.47, -25.97], [122.0, -25.75], [122.53, -25.97], [122.68, -26.32], [122.75, -26.35], [123.0, -26.25], [123.25, -26.35], [123.5, -26.25], [123.75, -26.35], [124.0, -26.25], [124.53, -26.47], [124.68, -26.82], [125.03, -26.97], [125.18, -27.32], [125.53, -27.47], [125.68, -27.82], [126.03, -27.97], [126.18, -28.32], [126.53, -28.47], [126.75, -29.0], [126.65, -29.25], [126.75, -29.5], [126.53, -30.03], [126.0, -30.25], [125.47, -30.03], [125.32, -29.68], [125.25, -29.65], [125.0, -29.75], [124.47, -29.53], [124.32, -29.18], [123.97, -29.03], [123.8, -28.62], [123.5, -28.75], [122.97, -28.53], [122.82, -28.18], [122.47, -28.03], [122.32, -27.68], [122.25, -27.65], [122.0, -27.75], [121.47, -27.53], [121.25, -27.0], [121.35, -26.75], [121.25, -26.5], [121.47, -25.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.9799611270819355}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.110165441035586}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.240461535033717, 9.421493509143545, 9.61487616641358]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [7.988026359928313, 8.327245256931917, 8.94000249740651]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.226459064163739, -4.109761756230485, -3.9942755027125347]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.9799611270819355, -4.694126102692792, -4.239306497010375]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3932509363501138, -1.3580418458201526, -1.3068265947719857]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.669632941680575, -1.5079449595044632, -1.4301592746174188]}}