{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:53:41.334030", "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-Nov-26_to_2024-Nov-28_123.5_-29.5"}, "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": 2024110000530}, "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 26 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 28 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": 115692.61518740823}, "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": -29.5}, "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": 123.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "123.5\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": 125.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -31.75}, "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": {"2024-11-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.35, -29.25], [121.25, -29.0], [121.47, -28.47], [122.0, -28.25], [122.25, -28.35], [122.32, -28.32], [122.35, -28.25], [122.25, -28.0], [122.35, -27.75], [122.25, -27.5], [122.47, -26.97], [123.0, -26.75], [123.25, -26.85], [123.5, -26.75], [123.75, -26.85], [124.0, -26.75], [124.53, -26.97], [124.75, -27.5], [124.65, -27.75], [124.68, -27.82], [125.03, -27.97], [125.18, -28.32], [125.53, -28.47], [125.68, -28.82], [126.03, -28.97], [126.25, -29.5], [126.15, -29.75], [126.25, -30.0], [126.15, -30.25], [126.25, -30.5], [126.03, -31.03], [125.5, -31.25], [125.25, -31.15], [125.0, -31.25], [124.75, -31.15], [124.68, -31.18], [124.65, -31.25], [124.75, -31.5], [124.53, -32.03], [124.0, -32.25], [123.75, -32.15], [123.5, -32.25], [122.97, -32.03], [122.75, -31.5], [122.85, -31.25], [122.82, -31.18], [122.47, -31.03], [122.32, -30.68], [122.25, -30.65], [122.0, -30.75], [121.47, -30.53], [121.25, -30.0], [121.35, -29.75], [121.25, -29.5], [121.35, -29.25]]]]}, "2024-11-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.35, -29.25], [121.25, -29.0], [121.47, -28.47], [122.0, -28.25], [122.25, -28.35], [122.32, -28.32], [122.35, -28.25], [122.25, -28.0], [122.35, -27.75], [122.25, -27.5], [122.47, -26.97], [123.0, -26.75], [123.25, -26.85], [123.5, -26.75], [123.75, -26.85], [124.0, -26.75], [124.53, -26.97], [124.75, -27.5], [124.65, -27.75], [124.68, -27.82], [125.03, -27.97], [125.18, -28.32], [125.53, -28.47], [125.68, -28.82], [126.03, -28.97], [126.25, -29.5], [126.15, -29.75], [126.25, -30.0], [126.15, -30.25], [126.25, -30.5], [126.03, -31.03], [125.5, -31.25], [125.25, -31.15], [125.0, -31.25], [124.75, -31.15], [124.68, -31.18], [124.65, -31.25], [124.75, -31.5], [124.53, -32.03], [124.0, -32.25], [123.75, -32.15], [123.5, -32.25], [122.97, -32.03], [122.75, -31.5], [122.85, -31.25], [122.82, -31.18], [122.47, -31.03], [122.32, -30.68], [122.25, -30.65], [122.0, -30.75], [121.47, -30.53], [121.25, -30.0], [121.35, -29.75], [121.25, -29.5], [121.35, -29.25]]]]}, "2024-11-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.35, -29.25], [121.25, -29.0], [121.47, -28.47], [122.0, -28.25], [122.25, -28.35], [122.32, -28.32], [122.35, -28.25], [122.25, -28.0], [122.35, -27.75], [122.25, -27.5], [122.47, -26.97], [123.0, -26.75], [123.25, -26.85], [123.5, -26.75], [123.75, -26.85], [124.0, -26.75], [124.53, -26.97], [124.75, -27.5], [124.65, -27.75], [124.68, -27.82], [125.03, -27.97], [125.18, -28.32], [125.53, -28.47], [125.68, -28.82], [126.03, -28.97], [126.25, -29.5], [126.15, -29.75], [126.25, -30.0], [126.15, -30.25], [126.25, -30.5], [126.03, -31.03], [125.5, -31.25], [125.25, -31.15], [125.0, -31.25], [124.75, -31.15], [124.68, -31.18], [124.65, -31.25], [124.75, -31.5], [124.53, -32.03], [124.0, -32.25], [123.75, -32.15], [123.5, -32.25], [122.97, -32.03], [122.75, -31.5], [122.85, -31.25], [122.82, -31.18], [122.47, -31.03], [122.32, -30.68], [122.25, -30.65], [122.0, -30.75], [121.47, -30.53], [121.25, -30.0], [121.35, -29.75], [121.25, -29.5], [121.35, -29.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.252469714660378}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.4319032538054755}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.674543531550967, 17.50781405545024, 19.145750728873338]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.240692392985068, 16.07975794474288, 17.22563959757491]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.676318600805587, -7.068970668620414, -5.550420491990435]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.252469714660378, -7.961940129718641, -6.082837211746323]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7199554249104119, -1.8416483241551784, -1.451513410297385]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1942141821354593, -2.0391169553592303, -1.5941893236344817]}}