{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:31.539978", "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-Jan-12_to_2011-Jan-14_137.5_-24.5"}, "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": 2011010000659}, "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": "January 12 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 14 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": 120734.50031908078}, "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": -24.5}, "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": 137.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "137.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 136.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 140.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -27.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -22.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-01-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.97, -22.97], [136.32, -22.82], [136.35, -22.75], [136.25, -22.5], [136.47, -21.97], [137.0, -21.75], [137.25, -21.85], [137.5, -21.75], [138.03, -21.97], [138.18, -22.32], [138.53, -22.47], [138.68, -22.82], [139.03, -22.97], [139.25, -23.5], [139.15, -23.75], [139.18, -23.82], [139.25, -23.85], [139.5, -23.75], [140.03, -23.97], [140.18, -24.32], [140.53, -24.47], [140.68, -24.82], [141.03, -24.97], [141.25, -25.5], [141.15, -25.75], [141.25, -26.0], [141.03, -26.53], [140.5, -26.75], [140.25, -26.65], [140.13, -26.7], [140.25, -27.0], [140.03, -27.53], [139.5, -27.75], [139.25, -27.65], [139.0, -27.75], [138.47, -27.53], [138.25, -27.0], [138.35, -26.75], [138.25, -26.5], [138.35, -26.25], [138.32, -26.18], [138.25, -26.15], [138.0, -26.25], [137.75, -26.15], [137.5, -26.25], [137.25, -26.15], [137.0, -26.25], [136.47, -26.03], [136.25, -25.5], [136.35, -25.25], [136.25, -25.0], [136.35, -24.75], [136.32, -24.68], [135.97, -24.53], [135.75, -24.0], [135.85, -23.75], [135.75, -23.5], [135.97, -22.97]]]]}, "2011-01-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.97, -22.97], [136.32, -22.82], [136.35, -22.75], [136.25, -22.5], [136.47, -21.97], [137.0, -21.75], [137.25, -21.85], [137.5, -21.75], [138.03, -21.97], [138.18, -22.32], [138.53, -22.47], [138.68, -22.82], [139.03, -22.97], [139.25, -23.5], [139.15, -23.75], [139.18, -23.82], [139.25, -23.85], [139.5, -23.75], [140.03, -23.97], [140.18, -24.32], [140.53, -24.47], [140.68, -24.82], [141.03, -24.97], [141.25, -25.5], [141.15, -25.75], [141.25, -26.0], [141.03, -26.53], [140.5, -26.75], [140.25, -26.65], [140.13, -26.7], [140.25, -27.0], [140.03, -27.53], [139.5, -27.75], [139.25, -27.65], [139.0, -27.75], [138.47, -27.53], [138.25, -27.0], [138.35, -26.75], [138.25, -26.5], [138.35, -26.25], [138.32, -26.18], [138.25, -26.15], [138.0, -26.25], [137.75, -26.15], [137.5, -26.25], [137.25, -26.15], [137.0, -26.25], [136.47, -26.03], [136.25, -25.5], [136.35, -25.25], [136.25, -25.0], [136.35, -24.75], [136.32, -24.68], [135.97, -24.53], [135.75, -24.0], [135.85, -23.75], [135.75, -23.5], [135.97, -22.97]]]]}, "2011-01-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.97, -22.97], [136.32, -22.82], [136.35, -22.75], [136.25, -22.5], [136.47, -21.97], [137.0, -21.75], [137.25, -21.85], [137.5, -21.75], [138.03, -21.97], [138.18, -22.32], [138.53, -22.47], [138.68, -22.82], [139.03, -22.97], [139.25, -23.5], [139.15, -23.75], [139.18, -23.82], [139.25, -23.85], [139.5, -23.75], [140.03, -23.97], [140.18, -24.32], [140.53, -24.47], [140.68, -24.82], [141.03, -24.97], [141.25, -25.5], [141.15, -25.75], [141.25, -26.0], [141.03, -26.53], [140.5, -26.75], [140.25, -26.65], [140.13, -26.7], [140.25, -27.0], [140.03, -27.53], [139.5, -27.75], [139.25, -27.65], [139.0, -27.75], [138.47, -27.53], [138.25, -27.0], [138.35, -26.75], [138.25, -26.5], [138.35, -26.25], [138.32, -26.18], [138.25, -26.15], [138.0, -26.25], [137.75, -26.15], [137.5, -26.25], [137.25, -26.15], [137.0, -26.25], [136.47, -26.03], [136.25, -25.5], [136.35, -25.25], [136.25, -25.0], [136.35, -24.75], [136.32, -24.68], [135.97, -24.53], [135.75, -24.0], [135.85, -23.75], [135.75, -23.5], [135.97, -22.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.024554458800196}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.250373225488612}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.62097126420872, 25.38348766178774, 27.864664733754125]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.950091739345112, 24.122234876012556, 27.345900528508025]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.270129611590158, -7.525227454839072, -4.955762610036611]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.710922582237174, -9.024554458800196, -5.808907758486953]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.909742333883962, -2.2848848929296026, -1.4926113475332685]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.369036296264798, -2.6517674460244054, -1.72544621857584]}}