{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:45.395573", "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-11_to_2011-Feb-13_124.5_-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": 2011020000638}, "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 11 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 13 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": 170742.05085293163}, "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", "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": -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": 124.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "124.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 123.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 129.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -30.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -26.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-02-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.35, -26.75], [123.25, -26.5], [123.47, -25.97], [124.0, -25.75], [124.25, -25.85], [124.5, -25.75], [124.75, -25.85], [125.0, -25.75], [125.53, -25.97], [125.68, -26.32], [125.75, -26.35], [126.0, -26.25], [126.53, -26.47], [126.68, -26.82], [126.75, -26.85], [127.0, -26.75], [127.53, -26.97], [127.68, -27.32], [127.75, -27.35], [128.0, -27.25], [128.53, -27.47], [128.68, -27.82], [129.03, -27.97], [129.18, -28.32], [129.53, -28.47], [129.75, -29.0], [129.65, -29.25], [129.68, -29.32], [130.03, -29.47], [130.25, -30.0], [130.15, -30.25], [130.25, -30.5], [130.03, -31.03], [129.5, -31.25], [129.25, -31.15], [129.0, -31.25], [128.75, -31.15], [128.5, -31.25], [128.25, -31.15], [128.0, -31.25], [127.75, -31.15], [127.5, -31.25], [127.0, -31.04], [126.5, -31.25], [126.25, -31.15], [126.0, -31.25], [125.47, -31.03], [125.25, -30.5], [125.35, -30.25], [125.32, -30.18], [124.97, -30.03], [124.82, -29.68], [124.47, -29.53], [124.25, -29.0], [124.35, -28.75], [124.32, -28.68], [123.97, -28.53], [123.82, -28.18], [123.47, -28.03], [123.25, -27.5], [123.35, -27.25], [123.25, -27.0], [123.35, -26.75]]]]}, "2011-02-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.35, -26.75], [123.25, -26.5], [123.47, -25.97], [124.0, -25.75], [124.25, -25.85], [124.5, -25.75], [124.75, -25.85], [125.0, -25.75], [125.53, -25.97], [125.68, -26.32], [125.75, -26.35], [126.0, -26.25], [126.53, -26.47], [126.68, -26.82], [126.75, -26.85], [127.0, -26.75], [127.53, -26.97], [127.68, -27.32], [127.75, -27.35], [128.0, -27.25], [128.53, -27.47], [128.68, -27.82], [129.03, -27.97], [129.18, -28.32], [129.53, -28.47], [129.75, -29.0], [129.65, -29.25], [129.68, -29.32], [130.03, -29.47], [130.25, -30.0], [130.15, -30.25], [130.25, -30.5], [130.03, -31.03], [129.5, -31.25], [129.25, -31.15], [129.0, -31.25], [128.75, -31.15], [128.5, -31.25], [128.25, -31.15], [128.0, -31.25], [127.75, -31.15], [127.5, -31.25], [127.0, -31.04], [126.5, -31.25], [126.25, -31.15], [126.0, -31.25], [125.47, -31.03], [125.25, -30.5], [125.35, -30.25], [125.32, -30.18], [124.97, -30.03], [124.82, -29.68], [124.47, -29.53], [124.25, -29.0], [124.35, -28.75], [124.32, -28.68], [123.97, -28.53], [123.82, -28.18], [123.47, -28.03], [123.25, -27.5], [123.35, -27.25], [123.25, -27.0], [123.35, -26.75]]]]}, "2011-02-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.35, -26.75], [123.25, -26.5], [123.47, -25.97], [124.0, -25.75], [124.25, -25.85], [124.5, -25.75], [124.75, -25.85], [125.0, -25.75], [125.53, -25.97], [125.68, -26.32], [125.75, -26.35], [126.0, -26.25], [126.53, -26.47], [126.68, -26.82], [126.75, -26.85], [127.0, -26.75], [127.53, -26.97], [127.68, -27.32], [127.75, -27.35], [128.0, -27.25], [128.53, -27.47], [128.68, -27.82], [129.03, -27.97], [129.18, -28.32], [129.53, -28.47], [129.75, -29.0], [129.65, -29.25], [129.68, -29.32], [130.03, -29.47], [130.25, -30.0], [130.15, -30.25], [130.25, -30.5], [130.03, -31.03], [129.5, -31.25], [129.25, -31.15], [129.0, -31.25], [128.75, -31.15], [128.5, -31.25], 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t2m.", "value": [18.819920760935986, 17.810489349792476, 17.38952915180647]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.497677232989175, -7.415028692574194, -7.277684342640929]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.508228640873995, -8.333879421127847, -8.665082752093781]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.566519647676776, -1.7783274237138562, -1.734298173212108]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.049540642693042, -1.9798466106489543, -1.9925336902969173]}}