{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:52:05.217376", "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-Jun-16_to_2024-Jun-18_146.5_-34.0"}, "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": 2024060000398}, "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": "June 16 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 18 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": 51593.540120697435}, "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", "E.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": -34.0}, "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": 146.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "146.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 143.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 147.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -34.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -31.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-06-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.47, -32.97], [144.0, -32.75], [144.25, -32.85], [144.32, -32.82], [144.35, -32.75], [144.25, -32.5], [144.47, -31.97], [144.82, -31.82], [144.97, -31.47], [145.5, -31.25], [146.03, -31.47], [146.18, -31.82], [146.53, -31.97], [146.75, -32.5], [146.63, -32.8], [146.75, -32.85], [147.0, -32.75], [147.53, -32.97], [147.75, -33.5], [147.65, -33.75], [147.75, -34.0], [147.65, -34.25], [147.75, -34.5], [147.53, -35.03], [147.0, -35.25], [146.47, -35.03], [146.32, -34.68], [146.25, -34.65], [146.0, -34.75], [145.5, -34.54], [145.0, -34.75], [144.75, -34.65], [144.5, -34.75], [144.25, -34.65], [144.0, -34.75], [143.47, -34.53], [143.25, -34.0], [143.35, -33.75], [143.25, -33.5], [143.47, -32.97]]]]}, "2024-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.47, -32.97], [144.0, -32.75], [144.25, -32.85], [144.32, -32.82], [144.35, -32.75], [144.25, -32.5], [144.47, -31.97], [144.82, -31.82], [144.97, -31.47], [145.5, -31.25], [146.03, -31.47], [146.18, -31.82], [146.53, -31.97], [146.75, -32.5], [146.63, -32.8], [146.75, -32.85], [147.0, -32.75], [147.53, -32.97], [147.75, -33.5], [147.65, -33.75], [147.75, -34.0], [147.65, -34.25], [147.75, -34.5], [147.53, -35.03], [147.0, -35.25], [146.47, -35.03], [146.32, -34.68], [146.25, -34.65], [146.0, -34.75], [145.5, -34.54], [145.0, -34.75], [144.75, -34.65], [144.5, -34.75], [144.25, -34.65], [144.0, -34.75], [143.47, -34.53], [143.25, -34.0], [143.35, -33.75], [143.25, -33.5], [143.47, -32.97]]]]}, "2024-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.47, -32.97], [144.0, -32.75], [144.25, -32.85], [144.32, -32.82], [144.35, -32.75], [144.25, -32.5], [144.47, -31.97], [144.82, -31.82], [144.97, -31.47], [145.5, -31.25], [146.03, -31.47], [146.18, -31.82], [146.53, -31.97], [146.75, -32.5], [146.63, -32.8], [146.75, -32.85], [147.0, -32.75], [147.53, -32.97], [147.75, -33.5], [147.65, -33.75], [147.75, -34.0], [147.65, -34.25], [147.75, -34.5], [147.53, -35.03], [147.0, -35.25], [146.47, -35.03], [146.32, -34.68], [146.25, -34.65], [146.0, -34.75], [145.5, -34.54], [145.0, -34.75], [144.75, -34.65], [144.5, -34.75], [144.25, -34.65], [144.0, -34.75], [143.47, -34.53], [143.25, -34.0], [143.35, -33.75], [143.25, -33.5], [143.47, -32.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.189483670317372}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.87213083959196}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [6.45600087181532, 5.810658299613124, 5.606049071813175]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [5.490624421098289, 5.279794241147215, 4.024315137963413]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.458576232007087, -4.024221615340807, -4.133594671427986]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.791446768367848, -4.840126341518442, -5.189483670317372]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4534350493004415, -1.711668857657525, -1.797549210793526]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.553078291941056, -1.9901032243693766, -2.223196351296075]}}