{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:02:15.685117", "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": "2015-Feb-01_to_2015-Feb-04_138.0_-35.0"}, "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": 2015020000024}, "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": "February 01 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 04 2015"}, "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": 79902.32683780952}, "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": ["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": ["Great Australian Bight"]}, "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": -35.0}, "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": 138.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "138.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 135.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 139.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -37.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -33.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-02-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.97, -34.47], [135.5, -34.25], [136.03, -34.47], 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-35.75], [136.68, -35.82]]]]}, "2015-02-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[134.97, -34.47], [135.5, -34.25], [136.03, -34.47], [136.18, -34.82], [136.3, -34.87], [136.35, -34.75], [136.25, -34.5], [136.35, -34.25], [136.25, -34.0], [136.47, -33.47], [137.0, -33.25], [137.53, -33.47], [137.7, -33.87], [138.0, -33.75], [138.53, -33.97], [138.75, -34.5], [138.65, -34.75], [138.7, -34.87], [139.0, -34.75], [139.53, -34.97], [139.75, -35.5], [139.65, -35.75], [139.75, -36.0], [139.65, -36.25], [139.75, -36.5], [139.65, -36.75], [139.75, -37.0], [139.53, -37.53], [139.0, -37.75], [138.75, -37.65], [138.5, -37.75], [138.25, -37.65], [138.0, -37.75], [137.75, -37.65], [137.68, -37.68], [137.53, -38.03], [137.0, -38.25], [136.75, -38.15], [136.5, -38.25], [135.97, -38.03], [135.82, -37.68], [135.75, -37.65], [135.5, -37.75], [134.97, -37.53], [134.75, -37.0], [134.97, -36.47], [135.38, -36.3], [135.32, -36.18], [134.97, -36.03], [134.75, -35.5], [134.85, 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-35.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.874109895686445}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.358152966261909}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.109548961084556, 16.167127675220513, 15.886625179219891, 16.062848742250367]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.356389217917979, 15.204012606326444, 15.110096273697422, 15.138517396081056]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.3300973617165077, -2.209152890931721, -2.4811728788972296, -2.5022483455692943]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.874109895686445, -3.724539563084818, -3.870642825792629, -3.6280780893208657]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.2244577750075591, -1.2023123583995474, -1.3611989959459612, -1.2868447557754326]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3759227425861027, -1.369446292864149, -1.4949412508983586, -1.3344734281152921]}}