{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:46.597653", "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": "2011-Feb-20_to_2011-Feb-22_132.0_-26.5"}, "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": 2011020000979}, "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": "February 20 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 22 2011"}, "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": 71380.05442413945}, "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": ["C.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": -26.5}, "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": 132.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "132.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 130.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 134.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -29.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -25.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-02-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.75, -27.0], [130.85, -26.75], [130.82, -26.68], [130.47, -26.53], [130.25, -26.0], [130.47, -25.47], [131.0, -25.25], [131.25, -25.35], [131.5, -25.25], [132.03, -25.47], [132.18, -25.82], [132.25, -25.85], [132.5, -25.75], [132.75, -25.85], [133.0, -25.75], [133.5, -25.96], [134.0, -25.75], [134.53, -25.97], [134.75, -26.5], [134.53, -27.03], [134.18, -27.18], [134.15, -27.25], [134.25, -27.5], [134.15, -27.75], [134.18, -27.82], [134.53, -27.97], [134.75, -28.5], [134.65, -28.75], [134.75, -29.0], [134.53, -29.53], [134.0, -29.75], [133.47, -29.53], [133.32, -29.18], [132.97, -29.03], [132.82, -28.68], [132.75, -28.65], [132.5, -28.75], [132.25, -28.65], [132.0, -28.75], [131.75, -28.65], [131.5, -28.75], [131.25, -28.65], [131.0, -28.75], [130.47, -28.53], [130.25, -28.0], [130.47, -27.47], [130.82, -27.32], [130.85, -27.25], [130.75, -27.0]]]]}, "2011-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.75, -27.0], [130.85, -26.75], [130.82, -26.68], [130.47, -26.53], [130.25, -26.0], [130.47, -25.47], [131.0, -25.25], [131.25, -25.35], [131.5, -25.25], [132.03, -25.47], [132.18, -25.82], [132.25, -25.85], [132.5, -25.75], [132.75, -25.85], [133.0, -25.75], [133.5, -25.96], [134.0, -25.75], [134.53, -25.97], [134.75, -26.5], [134.53, -27.03], [134.18, -27.18], [134.15, -27.25], [134.25, -27.5], [134.15, -27.75], [134.18, -27.82], [134.53, -27.97], [134.75, -28.5], [134.65, -28.75], [134.75, -29.0], [134.53, -29.53], [134.0, -29.75], [133.47, -29.53], [133.32, -29.18], [132.97, -29.03], [132.82, -28.68], [132.75, -28.65], [132.5, -28.75], [132.25, -28.65], [132.0, -28.75], [131.75, -28.65], [131.5, -28.75], [131.25, -28.65], [131.0, -28.75], [130.47, -28.53], [130.25, -28.0], [130.47, -27.47], [130.82, -27.32], [130.85, -27.25], [130.75, -27.0]]]]}, "2011-02-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.75, -27.0], [130.85, -26.75], [130.82, -26.68], [130.47, -26.53], [130.25, -26.0], [130.47, -25.47], [131.0, -25.25], [131.25, -25.35], [131.5, -25.25], [132.03, -25.47], [132.18, -25.82], [132.25, -25.85], [132.5, -25.75], [132.75, -25.85], [133.0, -25.75], [133.5, -25.96], [134.0, -25.75], [134.53, -25.97], [134.75, -26.5], [134.53, -27.03], [134.18, -27.18], [134.15, -27.25], [134.25, -27.5], [134.15, -27.75], [134.18, -27.82], [134.53, -27.97], [134.75, -28.5], [134.65, -28.75], [134.75, -29.0], [134.53, -29.53], [134.0, -29.75], [133.47, -29.53], [133.32, -29.18], [132.97, -29.03], [132.82, -28.68], [132.75, -28.65], [132.5, -28.75], [132.25, -28.65], [132.0, -28.75], [131.75, -28.65], [131.5, -28.75], [131.25, -28.65], [131.0, -28.75], [130.47, -28.53], [130.25, -28.0], [130.47, -27.47], [130.82, -27.32], [130.85, -27.25], [130.75, -27.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.036122892303013}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -7.097060785193783}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.84531563996103, 21.36249168899758, 21.362682139243645]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.31885441127895, 20.342505324739534, 20.564550264336503]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.939395796164453, -7.2227545974974925, -7.129031961919406]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.783209621178855, -7.827167953435378, -8.036122892303013]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6454297518002292, -1.7013015580984594, -1.6925914530697652]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8316270956536342, -1.8426317676944912, -1.8431098327213413]}}