{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:51:15.110687", "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-Mar-09_to_2024-Mar-11_120.0_-28.0"}, "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": 2024030000226}, "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": "March 09 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 11 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": 185287.99446411268}, "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": -28.0}, "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": 120.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "120.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 118.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 123.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -30.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -25.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-03-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.97, -25.97], [118.32, -25.82], [118.47, -25.47], 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{"type": "MultiPolygon", "coordinates": [[[[117.97, -25.97], [118.32, -25.82], [118.47, -25.47], [118.82, -25.32], [118.97, -24.97], [119.5, -24.75], [119.75, -24.85], [120.0, -24.75], [120.53, -24.97], [120.68, -25.32], [121.03, -25.47], [121.18, -25.82], [121.53, -25.97], [121.68, -26.32], [122.03, -26.47], [122.18, -26.82], [122.53, -26.97], [122.68, -27.32], [123.03, -27.47], [123.18, -27.82], [123.53, -27.97], [123.68, -28.32], [124.03, -28.47], [124.25, -29.0], [124.15, -29.25], [124.25, -29.5], [124.03, -30.03], [123.68, -30.18], [123.53, -30.53], [123.0, -30.75], [122.75, -30.65], [122.5, -30.75], [122.25, -30.65], [122.18, -30.68], [122.03, -31.03], [121.5, -31.25], [121.25, -31.15], [121.0, -31.25], [120.47, -31.03], [120.32, -30.68], [119.97, -30.53], [119.82, -30.18], [119.47, -30.03], [119.32, -29.68], [118.97, -29.53], [118.82, -29.18], [118.47, -29.03], [118.25, -28.5], [118.35, -28.25], [118.25, -28.0], [118.35, -27.75], [118.32, -27.68], [117.97, -27.53], [117.75, -27.0], [117.85, -26.75], [117.75, -26.5], [117.97, -25.97]]]]}, "2024-03-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.97, -25.97], [118.32, -25.82], [118.47, -25.47], [118.82, -25.32], [118.97, -24.97], [119.5, -24.75], [119.75, -24.85], [120.0, -24.75], [120.53, -24.97], [120.68, -25.32], [121.03, -25.47], [121.18, -25.82], [121.53, -25.97], [121.68, -26.32], [122.03, -26.47], [122.18, -26.82], [122.53, -26.97], [122.68, -27.32], [123.03, -27.47], [123.18, -27.82], [123.53, -27.97], [123.68, -28.32], [124.03, -28.47], [124.25, -29.0], [124.15, -29.25], [124.25, -29.5], [124.03, -30.03], [123.68, -30.18], [123.53, -30.53], [123.0, -30.75], [122.75, -30.65], [122.5, -30.75], [122.25, -30.65], [122.18, -30.68], [122.03, -31.03], [121.5, -31.25], [121.25, -31.15], [121.0, -31.25], [120.47, -31.03], [120.32, -30.68], [119.97, -30.53], [119.82, -30.18], [119.47, -30.03], [119.32, -29.68], [118.97, -29.53], [118.82, -29.18], [118.47, -29.03], [118.25, -28.5], 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"anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-9.647833305227152, -7.758437065402575, -6.559727663430749]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9436693735687438, -1.7837455024929236, -1.5595342267452532]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.397933437793823, -2.076716497567282, -1.8217032964484485]}}