{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:35.551313", "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-Jun-15_to_2013-Jun-18_145.5_-32.5"}, "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": 2013060000633}, "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 15 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 18 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": 62802.65662484575}, "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": -32.5}, "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": 145.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "145.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 143.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 146.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -34.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -30.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.75, -32.5], [142.97, -31.97], [143.5, -31.75], [144.03, -31.97], [144.18, -32.32], [144.25, -32.35], [144.32, -32.32], [144.47, -31.97], [145.0, -31.75], [145.25, -31.85], [145.5, -31.75], [145.75, -31.85], [146.0, -31.75], [146.53, -31.97], [146.75, -32.5], [146.53, -33.03], [146.18, -33.18], [146.03, -33.53], [145.68, -33.68], [145.53, -34.03], [145.0, -34.25], [144.75, -34.15], [144.68, -34.18], [144.53, -34.53], [144.0, -34.75], [143.47, -34.53], [143.25, -34.0], [143.35, -33.75], [143.25, -33.5], [143.35, -33.25], [143.32, -33.18], [142.97, -33.03], [142.75, -32.5]]]]}, "2013-06-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.75, -32.5], [142.97, -31.97], [143.5, -31.75], [144.03, -31.97], [144.18, -32.32], [144.25, -32.35], [144.32, -32.32], [144.35, -32.25], [144.25, -32.0], [144.35, -31.75], [144.32, -31.68], [143.97, -31.53], [143.75, -31.0], [143.85, -30.75], [143.75, -30.5], [143.97, -29.97], [144.5, -29.75], [144.75, -29.85], [145.0, -29.75], [145.25, -29.85], [145.5, -29.75], [146.03, -29.97], [146.25, 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-30.75], [143.75, -30.5], [143.97, -29.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.002588236224426}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.663905692231589}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [6.872407629661041, 7.158598955545699, 6.493390970678831, 7.076542765162685]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.397569458458975, 6.016915814194647, 5.402441144908892, 5.823255494760872]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.3500411028393366, -3.374594076959544, -4.08861209167704, -3.7008271388419667]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.6367758908760948, -3.935986927792271, -5.002588236224426, -4.302622551280365]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4391138452474426, -1.5234671904946542, -1.7843125513226765, -1.6419811835319524]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5151919443804316, -1.730676215094156, -2.1174396334493273, -1.9370444120073866]}}