{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:18.357265", "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": "2014-Sep-21_to_2014-Sep-23_147.5_-23.5"}, "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": 2014090000778}, "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": "September 21 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 23 2014"}, "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": 76496.64827152697}, "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": []}, "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": -23.5}, "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": 147.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "147.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 146.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 151.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -25.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -21.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-09-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.46, -22.5], [146.25, -22.0], [146.47, -21.47], [147.0, -21.25], [147.25, -21.35], [147.5, -21.25], [148.03, -21.47], [148.18, -21.82], [148.25, -21.85], [148.5, -21.75], [149.03, -21.97], [149.18, -22.32], [149.25, -22.35], [149.5, -22.25], [150.03, -22.47], [150.18, -22.82], [150.53, -22.97], [150.68, -23.32], [150.75, -23.35], [151.0, -23.25], [151.53, -23.47], [151.68, -23.82], [152.03, -23.97], [152.25, -24.5], [152.15, -24.75], [152.25, -25.0], [152.03, -25.53], [151.5, -25.75], [151.25, -25.65], [151.0, -25.75], [150.47, -25.53], [150.32, -25.18], [149.97, -25.03], [149.75, -24.5], [149.85, -24.25], [149.82, -24.18], [149.75, -24.15], [149.68, -24.18], [149.53, -24.53], [149.0, -24.75], [148.5, -24.54], [148.18, -24.68], [148.03, -25.03], [147.5, -25.25], [146.97, -25.03], [146.82, -24.68], [146.47, -24.53], [146.25, -24.0], [146.46, -23.5], [146.25, -23.0], [146.46, -22.5]]]]}, "2014-09-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.46, -22.5], [146.25, -22.0], [146.47, -21.47], [147.0, -21.25], [147.25, -21.35], [147.5, -21.25], [148.03, -21.47], [148.18, -21.82], [148.25, -21.85], [148.5, -21.75], [149.03, -21.97], [149.18, -22.32], [149.25, -22.35], [149.5, -22.25], [150.03, -22.47], [150.18, -22.82], [150.53, -22.97], [150.68, -23.32], [150.75, -23.35], [151.0, -23.25], [151.53, -23.47], [151.68, -23.82], [152.03, -23.97], [152.25, -24.5], [152.15, -24.75], [152.25, -25.0], [152.03, -25.53], [151.5, -25.75], [151.25, -25.65], [151.0, -25.75], [150.47, -25.53], [150.32, -25.18], [149.97, -25.03], [149.75, -24.5], [149.85, -24.25], [149.82, -24.18], [149.75, -24.15], [149.68, -24.18], [149.53, -24.53], [149.0, -24.75], [148.5, -24.54], [148.18, -24.68], [148.03, -25.03], [147.5, -25.25], [146.97, -25.03], [146.82, -24.68], [146.47, -24.53], [146.25, -24.0], [146.46, -23.5], [146.25, -23.0], [146.46, -22.5]]]]}, "2014-09-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.46, -22.5], [146.25, -22.0], [146.47, -21.47], [147.0, -21.25], [147.25, -21.35], [147.5, -21.25], [148.03, -21.47], [148.18, -21.82], [148.25, -21.85], [148.5, -21.75], [149.03, -21.97], [149.18, -22.32], [149.25, -22.35], [149.5, -22.25], [150.03, -22.47], [150.18, -22.82], [150.53, -22.97], [150.68, -23.32], [150.75, -23.35], [151.0, -23.25], [151.53, -23.47], [151.68, -23.82], [152.03, -23.97], [152.25, -24.5], [152.15, -24.75], [152.25, -25.0], [152.03, -25.53], [151.5, -25.75], [151.25, -25.65], [151.0, -25.75], [150.47, -25.53], [150.32, -25.18], [149.97, -25.03], [149.75, -24.5], [149.85, -24.25], [149.82, -24.18], [149.75, -24.15], [149.68, -24.18], [149.53, -24.53], [149.0, -24.75], [148.5, -24.54], [148.18, -24.68], [148.03, -25.03], [147.5, -25.25], [146.97, -25.03], [146.82, -24.68], [146.47, -24.53], [146.25, -24.0], [146.46, -23.5], [146.25, -23.0], [146.46, -22.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.532313615447208}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.957370224218802}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.85375700090492, 16.278393380654506, 18.529330155105583]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.091881975994909, 14.152041880062654, 15.884707731728554]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.075772976930765, -4.919915659396258, -2.876422036329382]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.825871725819297, -6.532313615447208, -3.409390256849008]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8934424566161299, -2.281393093716342, -1.3284299640401374]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.277870231675262, -2.692413956365495, -1.5011453720061452]}}