{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:47.804021", "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": "2017-May-02_to_2017-May-04_142.0_-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": 2017050000153}, "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": "May 02 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 04 2017"}, "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": 81076.52721465124}, "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": -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": 142.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "142.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 138.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 143.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -37.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -33.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.75, -33.5], [137.97, -32.97], [138.5, -32.75], [139.03, -32.97], [139.18, -33.32], [139.53, -33.47], [139.68, -33.82], [139.75, -33.85], [139.82, -33.82], [139.85, -33.75], [139.75, -33.5], [139.97, -32.97], [140.5, -32.75], [141.0, -32.96], [141.5, -32.75], [141.75, -32.85], [142.0, -32.75], [142.53, -32.97], [142.75, -33.5], [142.65, -33.75], [142.68, -33.82], [142.75, -33.85], [143.0, -33.75], [143.53, -33.97], [143.75, -34.5], [143.65, -34.75], [143.75, -35.0], [143.65, -35.25], [143.75, -35.5], [143.65, -35.75], [143.75, -36.0], [143.65, -36.25], [143.75, -36.5], [143.65, -36.75], [143.75, -37.0], [143.53, -37.53], [143.0, -37.75], [142.47, -37.53], [142.32, -37.18], [142.25, -37.15], [142.0, -37.25], [141.47, -37.03], [141.3, -36.62], [141.0, -36.75], [140.47, -36.53], [140.32, -36.18], [139.97, -36.03], [139.82, -35.68], [139.5, -35.54], [139.0, -35.75], [138.47, -35.53], [138.25, -35.0], [138.35, -34.75], [138.25, -34.5], [138.35, -34.25], [138.32, -34.18], [137.97, -34.03], [137.75, -33.5]], [[141.7, -35.87], [141.82, -35.82], [141.85, -35.75], [141.82, -35.68], [141.7, -35.62], [141.65, -35.75], [141.7, -35.87]]]]}, "2017-05-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.75, -33.5], [137.97, -32.97], [138.5, -32.75], [139.03, -32.97], [139.18, -33.32], [139.53, -33.47], [139.68, -33.82], [139.75, -33.85], [139.82, -33.82], [139.85, -33.75], [139.75, -33.5], [139.97, -32.97], [140.5, -32.75], [141.0, -32.96], [141.5, -32.75], [141.75, -32.85], [142.0, -32.75], [142.53, -32.97], [142.75, -33.5], [142.65, -33.75], [142.68, -33.82], [142.75, -33.85], [143.0, -33.75], [143.53, -33.97], [143.75, -34.5], [143.65, -34.75], [143.75, -35.0], [143.65, -35.25], [143.75, -35.5], [143.65, -35.75], [143.75, -36.0], [143.65, -36.25], [143.75, -36.5], [143.65, -36.75], [143.75, -37.0], [143.53, -37.53], [143.0, -37.75], [142.47, -37.53], [142.32, -37.18], [142.25, -37.15], [142.0, -37.25], [141.47, -37.03], [141.3, -36.62], [141.0, -36.75], [140.47, -36.53], [140.32, -36.18], [139.97, -36.03], [139.82, -35.68], [139.5, -35.54], [139.0, -35.75], [138.47, -35.53], [138.25, -35.0], [138.35, -34.75], [138.25, -34.5], [138.35, -34.25], [138.32, -34.18], [137.97, -34.03], [137.75, -33.5]], [[141.7, -35.87], [141.82, -35.82], [141.85, -35.75], [141.82, -35.68], [141.7, -35.62], [141.65, -35.75], [141.7, -35.87]]]]}, "2017-05-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.75, -33.5], [137.97, -32.97], [138.5, -32.75], [139.03, -32.97], [139.18, -33.32], [139.53, -33.47], [139.68, -33.82], [139.75, -33.85], [139.82, -33.82], [139.85, -33.75], [139.75, -33.5], [139.97, -32.97], [140.5, -32.75], [141.0, -32.96], [141.5, -32.75], [141.75, -32.85], [142.0, -32.75], [142.53, -32.97], [142.75, -33.5], [142.65, -33.75], [142.68, -33.82], [142.75, -33.85], [143.0, -33.75], [143.53, -33.97], [143.75, -34.5], [143.65, -34.75], [143.75, -35.0], [143.65, -35.25], [143.75, -35.5], [143.65, -35.75], [143.75, -36.0], [143.65, -36.25], [143.75, -36.5], [143.65, -36.75], [143.75, -37.0], [143.53, -37.53], [143.0, -37.75], [142.47, -37.53], [142.32, -37.18], [142.25, -37.15], [142.0, -37.25], [141.47, -37.03], [141.3, -36.62], [141.0, -36.75], [140.47, -36.53], [140.32, -36.18], [139.97, -36.03], [139.82, -35.68], [139.5, -35.54], [139.0, -35.75], [138.47, -35.53], [138.25, -35.0], [138.35, -34.75], [138.25, -34.5], [138.35, -34.25], [138.32, -34.18], [137.97, -34.03], [137.75, -33.5]], [[141.7, -35.87], [141.82, -35.82], [141.85, -35.75], [141.82, -35.68], [141.7, -35.62], [141.65, -35.75], [141.7, -35.87]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.649294873765768}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.9863042945469505}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [10.284074161288572, 9.334657696205966, 9.729099632682733]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [7.106200653348992, 8.173631818081446, 8.240011119465578]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.570415835935883, -4.44076265234883, -3.9477343953561377]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.693643774501936, -5.649294873765768, -4.883449691323904]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3126758633252806, -1.684857923868007, -1.4655321516964865]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.761798760176688, -2.1147953371256887, -1.7996246462381364]}}