{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:36:41.492176", "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": "2023-Oct-26_to_2023-Oct-29_153.0_-28.5"}, "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": 2023100000478}, "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": "October 26 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 29 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 52957.02710618169}, "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": ["E.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": ["Coral Sea"]}, "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": -28.5}, "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": 153.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "153.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 149.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 153.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -33.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -27.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-10-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[149.25, -32.5], [149.47, -31.97], [150.0, -31.75], [150.25, -31.85], [150.5, -31.75], [150.75, -31.85], [151.0, -31.75], [151.25, -31.85], [151.32, -31.82], [151.46, -31.5], [151.25, -31.0], [151.35, -30.75], [151.25, -30.5], [151.47, -29.97], [151.82, -29.82], [151.85, -29.75], [151.75, -29.5], [151.97, -28.97], [152.5, -28.75], [152.75, -28.85], [153.0, -28.75], [153.53, -28.97], [153.75, -29.5], [153.65, -29.75], [153.75, -30.0], [153.53, -30.53], [153.18, -30.68], [153.15, -30.75], [153.25, -31.0], [153.15, -31.25], [153.25, -31.5], [153.03, -32.03], [152.68, -32.18], [152.53, -32.53], [152.18, -32.68], [152.03, -33.03], [151.68, -33.18], [151.65, -33.25], [151.75, -33.5], [151.53, -34.03], [151.0, -34.25], [150.47, -34.03], [150.32, -33.68], [149.97, -33.53], [149.82, -33.18], [149.47, -33.03], [149.25, -32.5]]]]}, "2023-10-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[149.25, -32.5], [149.47, -31.97], [150.0, -31.75], [150.25, -31.85], [150.5, -31.75], [150.75, -31.85], [151.0, -31.75], [151.25, -31.85], [151.32, 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-27.47], [153.0, -27.25], [153.53, -27.47], [153.75, -28.0], [153.65, -28.25], [153.68, -28.32], [154.03, -28.47], [154.25, -29.0], [154.03, -29.53], [153.5, -29.75], [152.97, -29.53], [152.82, -29.18], [152.47, -29.03], [152.25, -28.5], [152.35, -28.25], [152.25, -28.0], [152.47, -27.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.336821903915677}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.690436613594399}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.294139054698974, 12.843802532978373, 13.99644074837994, 17.170190232758728]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [8.666567756246081, 8.288716409618644, 10.364446231263742, 16.058428430785455]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.216655456649569, -5.129222146098994, -4.043696297735281, -3.094895058645269]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.336821903915677, -6.652216287089971, -4.874440033620942, -3.4440658076835007]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7720046933092737, -1.8467609232259832, -1.4604984639082388, -1.432093397012571]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.2315373119315827, -2.309955551502787, -1.7623492737870912, -1.5478652145369785]}}