{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:18.311457", "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": "2019-Aug-17_to_2019-Aug-19_124.0_-31.5"}, "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": 2019080000540}, "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": "August 17 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 19 2019"}, "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": 55552.99943046169}, "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": []}, "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": -31.5}, "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": 124.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "124.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 120.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 125.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -32.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -29.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-08-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.47, -29.97], [120.82, -29.82], [120.97, -29.47], [121.5, -29.25], [121.75, -29.35], [122.0, -29.25], [122.53, -29.47], [122.68, -29.82], [122.75, -29.85], [123.0, -29.75], [123.53, -29.97], [123.68, -30.32], [124.03, -30.47], [124.18, -30.82], [124.53, -30.97], [124.68, -31.32], [124.75, -31.35], [125.0, -31.25], [125.53, -31.47], [125.75, -32.0], [125.53, -32.53], [125.18, -32.68], [125.03, -33.03], [124.5, -33.25], [124.25, -33.15], [124.0, -33.25], [123.47, -33.03], [123.32, -32.68], [122.97, -32.53], [122.82, -32.18], [122.47, -32.03], [122.32, -31.68], [122.25, -31.65], [122.0, -31.75], [121.75, -31.65], [121.5, -31.75], [121.25, -31.65], [121.0, -31.75], [120.47, -31.53], [120.25, -31.0], [120.35, -30.75], [120.25, -30.5], [120.47, -29.97]]]]}, "2019-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.47, -29.97], [120.82, -29.82], [120.97, -29.47], [121.5, -29.25], [121.75, -29.35], [122.0, -29.25], [122.53, -29.47], [122.68, -29.82], [122.75, -29.85], [123.0, -29.75], [123.53, -29.97], [123.68, -30.32], [124.03, -30.47], [124.18, -30.82], [124.53, -30.97], [124.68, -31.32], [124.75, -31.35], [125.0, -31.25], [125.53, -31.47], [125.75, -32.0], [125.53, -32.53], [125.18, -32.68], [125.03, -33.03], [124.5, -33.25], [124.25, -33.15], [124.0, -33.25], [123.47, -33.03], [123.32, -32.68], [122.97, -32.53], [122.82, -32.18], [122.47, -32.03], [122.32, -31.68], [122.25, -31.65], [122.0, -31.75], [121.75, -31.65], [121.5, -31.75], [121.25, -31.65], [121.0, -31.75], [120.47, -31.53], [120.25, -31.0], [120.35, -30.75], [120.25, -30.5], [120.47, -29.97]]]]}, "2019-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.47, -29.97], [120.82, -29.82], [120.97, -29.47], [121.5, -29.25], [121.75, -29.35], [122.0, -29.25], [122.53, -29.47], [122.68, -29.82], [122.75, -29.85], [123.0, -29.75], [123.53, -29.97], [123.68, -30.32], [124.03, -30.47], [124.18, -30.82], [124.53, -30.97], [124.68, -31.32], [124.75, -31.35], [125.0, -31.25], [125.53, -31.47], [125.75, -32.0], [125.53, -32.53], [125.18, -32.68], [125.03, -33.03], [124.5, -33.25], [124.25, -33.15], [124.0, -33.25], [123.47, -33.03], [123.32, -32.68], [122.97, -32.53], [122.82, -32.18], [122.47, -32.03], [122.32, -31.68], [122.25, -31.65], [122.0, -31.75], [121.75, -31.65], [121.5, -31.75], [121.25, -31.65], [121.0, -31.75], [120.47, -31.53], [120.25, -31.0], [120.35, -30.75], [120.25, -30.5], [120.47, -29.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.527485044296213}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.7721119355075925}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [8.856874803162327, 8.6113507075994, 9.002453419517337]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [7.980089010819825, 7.826761670005169, 8.57859779562699]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.598616917298308, -3.9965676355626827, -3.7211512536617875]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.069509733162192, -4.527485044296213, -4.192741171458238]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3054862855490004, -1.4519782402544044, -1.2918800703939841]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3901488321061335, -1.6032496260845128, -1.5012575674764634]}}