{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:05.892052", "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-Aug-04_to_2011-Aug-06_126.0_-29.5"}, "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": 2011080000293}, "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": "August 04 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 06 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": 186574.4628844182}, "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": -29.5}, "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": 126.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "126.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 122.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 129.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -31.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -26.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[122.47, -26.47], [123.0, -26.25], [123.53, -26.47], [123.68, -26.82], [123.75, -26.85], [124.0, -26.75], [124.25, -26.85], [124.5, -26.75], [124.75, -26.85], [125.0, -26.75], [125.25, -26.85], [125.5, -26.75], [125.75, -26.85], [126.0, -26.75], [126.25, -26.85], [126.5, -26.75], [126.75, -26.85], [127.0, -26.75], [127.25, -26.85], [127.5, -26.75], [128.03, -26.97], [128.18, -27.32], [128.53, -27.47], [128.68, -27.82], [129.03, -27.97], [129.18, -28.32], [129.53, -28.47], [129.75, -29.0], [129.53, -29.53], [129.0, -29.75], [128.75, -29.65], [128.5, -29.75], [128.25, -29.65], [128.18, -29.68], [128.03, -30.03], [127.5, -30.25], [127.25, -30.15], [127.18, -30.18], [127.03, -30.53], [126.68, -30.68], [126.53, -31.03], [126.0, -31.25], [125.75, -31.15], [125.68, -31.18], [125.53, -31.53], [125.0, -31.75], [124.75, -31.65], [124.5, -31.75], [124.25, -31.65], [124.0, -31.75], [123.75, -31.65], [123.5, -31.75], [123.25, -31.65], [123.0, -31.75], [122.47, -31.53], [122.25, -31.0], [122.47, -30.47], [122.82, -30.32], [122.85, -30.25], [122.75, -30.0], [122.97, -29.47], [123.32, -29.32], [123.35, -29.25], [123.32, -29.18], [122.97, -29.03], [122.75, -28.5], [122.85, -28.25], [122.82, -28.18], [122.47, -28.03], [122.25, -27.5], [122.35, -27.25], [122.25, -27.0], [122.47, -26.47]]]]}, "2011-08-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[122.47, -26.47], [123.0, -26.25], [123.53, -26.47], [123.68, -26.82], [123.75, -26.85], [124.0, -26.75], [124.25, -26.85], [124.5, -26.75], [124.75, -26.85], [125.0, -26.75], [125.25, -26.85], [125.5, -26.75], [125.75, -26.85], [126.0, -26.75], [126.25, -26.85], [126.5, -26.75], [126.75, -26.85], [127.0, -26.75], [127.25, -26.85], [127.5, -26.75], [128.03, -26.97], [128.18, -27.32], [128.53, -27.47], [128.68, -27.82], [129.03, -27.97], [129.18, -28.32], [129.53, -28.47], [129.75, -29.0], [129.53, -29.53], [129.0, -29.75], [128.75, -29.65], [128.5, -29.75], [128.25, -29.65], [128.18, -29.68], [128.03, -30.03], [127.5, -30.25], [127.25, -30.15], [127.18, -30.18], [127.03, -30.53], [126.68, -30.68], [126.53, -31.03], [126.0, -31.25], [125.75, -31.15], [125.68, -31.18], [125.53, -31.53], [125.0, -31.75], [124.75, -31.65], [124.5, -31.75], [124.25, -31.65], [124.0, -31.75], [123.75, -31.65], [123.5, -31.75], [123.25, -31.65], [123.0, -31.75], [122.47, -31.53], [122.25, -31.0], [122.47, -30.47], [122.82, -30.32], [122.85, -30.25], [122.75, -30.0], [122.97, -29.47], [123.32, -29.32], [123.35, -29.25], [123.32, -29.18], [122.97, -29.03], [122.75, -28.5], [122.85, -28.25], [122.82, -28.18], [122.47, -28.03], [122.25, -27.5], [122.35, -27.25], [122.25, -27.0], [122.47, -26.47]]]]}, "2011-08-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[122.47, -26.47], [123.0, -26.25], [123.53, -26.47], [123.68, -26.82], [123.75, -26.85], [124.0, -26.75], [124.25, -26.85], [124.5, -26.75], [124.75, -26.85], [125.0, -26.75], [125.25, -26.85], [125.5, -26.75], [125.75, -26.85], [126.0, -26.75], [126.25, -26.85], [126.5, -26.75], [126.75, -26.85], [127.0, -26.75], [127.25, -26.85], [127.5, -26.75], [128.03, -26.97], [128.18, -27.32], [128.53, -27.47], [128.68, -27.82], [129.03, -27.97], [129.18, -28.32], [129.53, -28.47], [129.75, -29.0], [129.53, -29.53], [129.0, -29.75], [128.75, -29.65], [128.5, -29.75], [128.25, -29.65], [128.18, -29.68], [128.03, -30.03], [127.5, -30.25], [127.25, -30.15], [127.18, -30.18], [127.03, -30.53], [126.68, -30.68], [126.53, -31.03], [126.0, -31.25], [125.75, -31.15], [125.68, -31.18], [125.53, -31.53], [125.0, -31.75], [124.75, -31.65], [124.5, -31.75], [124.25, -31.65], [124.0, -31.75], [123.75, -31.65], [123.5, -31.75], [123.25, -31.65], [123.0, -31.75], [122.47, -31.53], [122.25, -31.0], [122.47, -30.47], [122.82, -30.32], [122.85, -30.25], [122.75, -30.0], [122.97, -29.47], [123.32, -29.32], [123.35, -29.25], [123.32, -29.18], [122.97, -29.03], [122.75, -28.5], [122.85, -28.25], [122.82, -28.18], [122.47, -28.03], [122.25, -27.5], [122.35, -27.25], [122.25, -27.0], [122.47, -26.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.245355092400359}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.089778645640921}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [8.86496135410954, 8.494237779734817, 8.853051657104743]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [8.027520624821761, 7.2154070970661905, 7.809707158098888]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.7945414528742245, -4.3238202527731975, -4.150974231275338]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.509851604690311, -5.245355092400359, -4.931581868393039]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3467452353795624, -1.4432341925591405, -1.3558060891054848]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5382353299774847, -1.6831597914469907, -1.665965554074333]}}