{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:14.386678", "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": "2016-Sep-27_to_2016-Sep-29_118.0_-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": 2016090000638}, "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 27 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 29 2016"}, "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": 88510.76454048615}, "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": -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": 118.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "118.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 116.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 120.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -34.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -30.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.75, -32.0], [115.97, -31.47], [116.32, -31.32], [116.47, -30.97], [117.0, -30.75], [117.25, -30.85], [117.32, -30.82], [117.47, -30.47], [118.0, -30.25], [118.25, -30.35], [118.5, -30.25], [119.03, -30.47], [119.25, -31.0], [119.15, -31.25], [119.18, -31.32], [119.25, -31.35], [119.5, -31.25], [120.03, -31.47], [120.25, -32.0], [120.15, -32.25], [120.25, -32.5], [120.15, -32.75], [120.25, -33.0], [120.15, -33.25], [120.18, -33.32], [120.25, -33.35], [120.5, -33.25], [121.03, -33.47], [121.25, -34.0], [121.03, -34.53], [120.5, -34.75], [120.25, -34.65], [120.0, -34.75], [119.7, -34.62], [119.53, -35.03], [119.0, -35.25], [118.47, -35.03], [118.25, -34.5], [118.35, -34.25], [118.32, -34.18], [118.25, -34.15], [118.0, -34.25], [117.75, -34.15], [117.5, -34.25], [116.97, -34.03], [116.82, -33.68], [116.47, -33.53], [116.25, -33.0], [116.35, -32.75], [116.32, -32.68], [115.97, -32.53], [115.75, -32.0]]]]}, "2016-09-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.75, -32.0], [115.97, -31.47], [116.32, -31.32], [116.47, -30.97], [117.0, -30.75], [117.25, -30.85], [117.32, -30.82], [117.47, -30.47], [118.0, -30.25], [118.25, -30.35], [118.5, -30.25], [119.03, -30.47], [119.25, -31.0], [119.15, -31.25], [119.18, -31.32], [119.25, -31.35], [119.5, -31.25], [120.03, -31.47], [120.25, -32.0], [120.15, -32.25], [120.25, -32.5], [120.15, -32.75], [120.25, -33.0], [120.15, -33.25], [120.18, -33.32], [120.25, -33.35], [120.5, -33.25], [121.03, -33.47], [121.25, -34.0], [121.03, -34.53], [120.5, -34.75], [120.25, -34.65], [120.0, -34.75], [119.7, -34.62], [119.53, -35.03], [119.0, -35.25], [118.47, -35.03], [118.25, -34.5], [118.35, -34.25], [118.32, -34.18], [118.25, -34.15], [118.0, -34.25], [117.75, -34.15], [117.5, -34.25], [116.97, -34.03], [116.82, -33.68], [116.47, -33.53], [116.25, -33.0], [116.35, -32.75], [116.32, -32.68], [115.97, -32.53], [115.75, -32.0]]]]}, "2016-09-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.75, -32.0], [115.97, -31.47], [116.32, -31.32], [116.47, -30.97], [117.0, -30.75], [117.25, -30.85], [117.32, -30.82], [117.47, -30.47], [118.0, -30.25], [118.25, -30.35], [118.5, -30.25], [119.03, -30.47], [119.25, -31.0], [119.15, -31.25], [119.18, -31.32], [119.25, -31.35], [119.5, -31.25], [120.03, -31.47], [120.25, -32.0], [120.15, -32.25], [120.25, -32.5], [120.15, -32.75], [120.25, -33.0], [120.15, -33.25], [120.18, -33.32], [120.25, -33.35], [120.5, -33.25], [121.03, -33.47], [121.25, -34.0], [121.03, -34.53], [120.5, -34.75], [120.25, -34.65], [120.0, -34.75], [119.7, -34.62], [119.53, -35.03], [119.0, -35.25], [118.47, -35.03], [118.25, -34.5], [118.35, -34.25], [118.32, -34.18], [118.25, -34.15], [118.0, -34.25], [117.75, -34.15], [117.5, -34.25], [116.97, -34.03], [116.82, -33.68], [116.47, -33.53], [116.25, -33.0], [116.35, -32.75], [116.32, -32.68], [115.97, -32.53], [115.75, -32.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.09814075941199}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.993748008420612}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.54645104071767, 7.171693686738706, 9.696172551541167]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [7.964543440817351, 6.041928223852153, 8.499089679843394]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.17868330376373, -6.610480498293678, -4.192080223204427]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.673434978123055, -8.09814075941199, -4.946314327495315]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4498452425228667, -2.2188459772726064, -1.378209830495934]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6888350189699817, -2.4399803217287843, -1.5462713892246753]}}