{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:45.287735", "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-10_to_2011-Feb-12_129.5_-21.0"}, "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": 2011020000600}, "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 10 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 12 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": 101955.5802320186}, "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", "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": -21.0}, "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": 129.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "129.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 127.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 132.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -21.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -17.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-02-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.47, -18.47], [128.0, -18.25], [128.25, -18.35], [128.5, -18.25], [128.75, -18.35], [128.82, -18.32], [128.97, -17.97], [129.5, -17.75], [129.75, -17.85], [130.0, -17.75], [130.25, -17.85], [130.32, -17.82], [130.47, -17.47], [131.0, -17.25], [131.53, -17.47], [131.75, -18.0], [131.65, -18.25], [131.68, -18.32], [131.75, -18.35], [132.0, -18.25], [132.53, -18.47], [132.75, -19.0], [132.53, -19.53], [132.18, -19.68], [132.15, -19.75], [132.25, -20.0], [132.03, -20.53], [131.68, -20.68], [131.53, -21.03], [131.0, -21.25], [130.75, -21.15], [130.5, -21.25], [130.25, -21.15], [130.18, -21.18], [130.03, -21.53], [129.5, -21.75], [129.25, -21.65], [129.0, -21.75], [128.47, -21.53], [128.25, -21.0], [128.35, -20.75], [128.32, -20.68], [127.97, -20.53], [127.82, -20.18], [127.47, -20.03], [127.25, -19.5], [127.35, -19.25], [127.25, -19.0], [127.47, -18.47]]]]}, "2011-02-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.47, -18.47], [128.0, -18.25], [128.25, -18.35], [128.5, -18.25], [128.75, -18.35], [128.82, -18.32], [128.97, -17.97], [129.5, -17.75], [129.75, -17.85], [130.0, -17.75], [130.25, -17.85], [130.32, -17.82], [130.47, -17.47], [131.0, -17.25], [131.53, -17.47], [131.75, -18.0], [131.65, -18.25], [131.68, -18.32], [131.75, -18.35], [132.0, -18.25], [132.53, -18.47], [132.75, -19.0], [132.53, -19.53], [132.18, -19.68], [132.15, -19.75], [132.25, -20.0], [132.03, -20.53], [131.68, -20.68], [131.53, -21.03], [131.0, -21.25], [130.75, -21.15], [130.5, -21.25], [130.25, -21.15], [130.18, -21.18], [130.03, -21.53], [129.5, -21.75], [129.25, -21.65], [129.0, -21.75], [128.47, -21.53], [128.25, -21.0], [128.35, -20.75], [128.32, -20.68], [127.97, -20.53], [127.82, -20.18], [127.47, -20.03], [127.25, -19.5], [127.35, -19.25], [127.25, -19.0], [127.47, -18.47]]]]}, "2011-02-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.47, -18.47], [128.0, -18.25], [128.25, -18.35], [128.5, -18.25], [128.75, -18.35], [128.82, -18.32], [128.97, -17.97], [129.5, -17.75], [129.75, -17.85], [130.0, -17.75], [130.25, -17.85], [130.32, -17.82], [130.47, -17.47], [131.0, -17.25], [131.53, -17.47], [131.75, -18.0], [131.65, -18.25], [131.68, -18.32], [131.75, -18.35], [132.0, -18.25], [132.53, -18.47], [132.75, -19.0], [132.53, -19.53], [132.18, -19.68], [132.15, -19.75], [132.25, -20.0], [132.03, -20.53], [131.68, -20.68], [131.53, -21.03], [131.0, -21.25], [130.75, -21.15], [130.5, -21.25], [130.25, -21.15], [130.18, -21.18], [130.03, -21.53], [129.5, -21.75], [129.25, -21.65], [129.0, -21.75], [128.47, -21.53], [128.25, -21.0], [128.35, -20.75], [128.32, -20.68], [127.97, -20.53], [127.82, -20.18], [127.47, -20.03], [127.25, -19.5], [127.35, -19.25], [127.25, -19.0], [127.47, -18.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.405140736893941}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.479880783164168}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.88683045685633, 25.641354265962377, 26.27582422540945]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.844648906357406, 24.49705214792135, 25.29773004190838]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.544869440479182, -4.775896543482365, -4.118876365530956]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.405140736893941, -5.286812838565538, -4.703560972637206]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5466309932854103, -1.637973082823496, -1.4242156061354083]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8108844721892814, -1.89107878097533, -1.6258460365797216]}}