{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:55.661604", "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": "2013-Nov-30_to_2013-Dec-03_153.5_-26.5"}, "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": 2013110001303}, "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 30 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 03 2013"}, "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": 57904.55165380117}, "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": -26.5}, "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": 153.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "153.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 152.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 154.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -28.75}, "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": {"2013-11-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[151.97, -24.97], [152.5, -24.75], [152.75, -24.85], [153.0, -24.75], [153.53, -24.97], [153.68, -25.32], [153.75, -25.35], [154.0, -25.25], [154.53, -25.47], [154.68, -25.82], [155.03, -25.97], [155.25, -26.5], [155.15, -26.75], [155.25, -27.0], [155.15, -27.25], [155.25, -27.5], [155.15, -27.75], [155.25, -28.0], [155.15, -28.25], [155.25, -28.5], [155.03, -29.03], [154.5, -29.25], [153.97, -29.03], [153.82, -28.68], [153.75, -28.65], [153.5, -28.75], [152.97, -28.53], [152.75, -28.0], [152.85, -27.75], [152.82, -27.68], [152.47, -27.53], [152.25, -27.0], [152.35, -26.75], [152.32, -26.68], [151.97, -26.53], [151.75, -26.0], [151.85, -25.75], [151.75, -25.5], [151.97, -24.97]]]]}, "2013-12-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[151.97, -24.97], [152.5, -24.75], [152.75, -24.85], [153.0, -24.75], [153.53, -24.97], [153.68, -25.32], [153.75, -25.35], [154.0, -25.25], [154.53, -25.47], [154.68, -25.82], [155.03, -25.97], [155.25, -26.5], [155.15, -26.75], [155.25, -27.0], [155.15, -27.25], [155.25, -27.5], [155.15, -27.75], [155.25, -28.0], [155.15, -28.25], [155.25, -28.5], [155.03, -29.03], [154.5, -29.25], [153.97, -29.03], [153.82, -28.68], [153.75, -28.65], [153.5, -28.75], [152.97, -28.53], [152.75, -28.0], [152.85, -27.75], [152.82, -27.68], [152.47, -27.53], [152.25, -27.0], [152.35, -26.75], [152.32, -26.68], [151.97, -26.53], [151.75, -26.0], [151.85, -25.75], [151.75, -25.5], [151.97, -24.97]]]]}, "2013-12-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[151.97, -24.97], [152.5, -24.75], [152.75, -24.85], [153.0, -24.75], [153.53, -24.97], [153.68, -25.32], [153.75, -25.35], [154.0, -25.25], [154.53, -25.47], [154.68, -25.82], [155.03, -25.97], [155.25, -26.5], [155.15, -26.75], [155.25, -27.0], [155.15, -27.25], [155.25, -27.5], [155.15, -27.75], [155.25, -28.0], [155.15, -28.25], [155.25, -28.5], [155.03, -29.03], [154.5, -29.25], [153.97, -29.03], [153.82, -28.68], [153.75, -28.65], [153.5, -28.75], [152.97, -28.53], [152.75, -28.0], [152.85, -27.75], [152.82, -27.68], [152.47, -27.53], [152.25, -27.0], [152.35, -26.75], [152.32, -26.68], [151.97, -26.53], [151.75, -26.0], [151.85, -25.75], [151.75, -25.5], [151.97, -24.97]]]]}, "2013-12-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[152.47, -25.47], [153.0, -25.25], [153.25, -25.35], [153.5, -25.25], [154.03, -25.47], [154.25, -26.0], [154.15, -26.25], [154.25, -26.5], [154.03, -27.03], [153.5, -27.25], [153.25, -27.15], [153.0, -27.25], [152.47, -27.03], [152.25, -26.5], [152.35, -26.25], [152.25, -26.0], [152.47, -25.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.385804997685568}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.3708650274437466}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.953638837062783, 21.02993364734425, 21.436181723347488, 21.562408110896797]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.85480246905638, 19.8846048509933, 20.618879323769193, 20.88032994888931]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.487947498647884, -2.506988899541958, -2.1545393819094607, -2.177241364161418]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.385804997685568, -3.4683797025003855, -3.0094958623274692, -2.9980007906841593]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7568948257421642, -1.862887213381766, -1.5748264920816069, -1.3904548922661109]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.084951782349685, -2.1104607484314624, -1.8540922988147197, -1.4396502822145598]}}