{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:19.138079", "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": "2010-Dec-11_to_2010-Dec-14_131.0_-12.5"}, "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": 2010120000586}, "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": "December 11 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 14 2010"}, "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": 51118.849934662925}, "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": ["N.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": -12.5}, "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": 131.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "131.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 129.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 132.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -14.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -12.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-12-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[129.47, -13.47], [129.82, -13.32], [129.85, -13.25], [129.75, -13.0], [129.97, -12.47], [130.32, -12.32], [130.47, -11.97], [131.0, -11.75], [131.25, -11.85], [131.5, -11.75], [131.75, -11.85], [132.0, -11.75], [132.53, -11.97], [132.75, -12.5], [132.65, -12.75], [132.68, -12.82], [133.03, -12.97], [133.25, -13.5], [133.03, -14.03], [132.5, -14.25], [132.25, -14.15], [132.18, -14.18], [132.03, -14.53], [131.5, -14.75], [131.25, -14.65], [131.0, -14.75], [130.75, -14.65], [130.68, -14.68], [130.53, -15.03], [130.0, -15.25], [129.47, -15.03], [129.25, -14.5], [129.35, -14.25], [129.25, -14.0], [129.47, -13.47]]]]}, "2010-12-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[129.47, -13.47], [129.82, -13.32], [129.85, -13.25], [129.75, -13.0], [129.97, -12.47], [130.32, -12.32], [130.47, -11.97], [131.0, -11.75], [131.25, -11.85], [131.5, -11.75], [131.75, -11.85], [132.0, -11.75], [132.53, -11.97], [132.75, -12.5], [132.65, -12.75], [132.68, -12.82], [133.03, -12.97], [133.25, -13.5], [133.03, -14.03], [132.5, -14.25], [132.25, -14.15], [132.18, -14.18], [132.03, -14.53], [131.5, -14.75], [131.25, -14.65], [131.0, -14.75], [130.75, -14.65], [130.68, -14.68], [130.53, -15.03], [130.0, -15.25], [129.47, -15.03], [129.25, -14.5], [129.35, -14.25], [129.25, -14.0], [129.47, -13.47]]]]}, "2010-12-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[129.47, -13.47], [129.82, -13.32], [129.85, -13.25], [129.75, -13.0], [129.97, -12.47], [130.32, -12.32], [130.47, -11.97], [131.0, -11.75], [131.25, -11.85], [131.5, -11.75], [131.75, -11.85], [132.0, -11.75], [132.53, -11.97], [132.75, -12.5], [132.65, -12.75], [132.68, -12.82], [133.03, -12.97], [133.25, -13.5], [133.03, -14.03], [132.5, -14.25], [132.25, -14.15], [132.18, -14.18], [132.03, -14.53], [131.5, -14.75], [131.25, -14.65], [131.0, -14.75], [130.75, -14.65], [130.68, -14.68], [130.53, -15.03], [130.0, -15.25], [129.47, -15.03], [129.25, -14.5], [129.35, -14.25], [129.25, -14.0], [129.47, -13.47]]]]}, "2010-12-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.0, -11.75], [131.53, -11.97], [131.75, -12.5], [131.53, -13.03], [131.0, -13.25], [130.47, -13.03], [130.25, -12.5], [130.47, -11.97], [131.0, -11.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.6228857370361425}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.972594878922258}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.758934097554345, 26.498409681343617, 26.940343573251596, 26.718321392553037]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.255132622531335, 25.890574707512712, 26.52972683533642, 26.718321392553037]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.0225618643349357, -2.1926618854259043, -1.712065649297475, -1.811013919966058]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.482588382380527, -2.6228857370361425, -2.051359669006615, -1.811013919966058]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5712193307327165, -1.7743960164821204, -1.426367326861265, -1.5953201898588951]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.947029590107028, -2.2641185373521266, -1.599170346560738, -1.5953201898588951]}}