{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:43:49.997003", "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": "2010-Jan-10_to_2010-Jan-13_128.0_-25.0"}, "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": 2010010000358}, "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 10 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 13 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 87172.09355914767}, "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": -25.0}, "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": 128.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "128.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 126.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 130.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -26.75}, "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": {"2010-01-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.35, -22.75], [128.25, -22.5], [128.47, -21.97], [129.0, -21.75], [129.53, -21.97], [129.68, -22.32], [130.03, -22.47], [130.18, -22.82], [130.53, -22.97], [130.75, -23.5], [130.53, -24.03], [130.0, -24.25], [129.75, -24.15], [129.5, -24.25], [129.25, -24.15], [129.0, -24.25], [128.47, -24.03], [128.25, -23.5], [128.35, -23.25], [128.25, -23.0], [128.35, -22.75]]]]}, "2010-01-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.35, -24.75], [126.25, -24.5], [126.35, -24.25], [126.25, -24.0], [126.35, -23.75], [126.25, -23.5], [126.47, -22.97], [127.0, -22.75], [127.53, -22.97], [127.68, -23.32], [127.75, -23.35], [128.0, -23.25], [128.25, -23.35], [128.32, -23.32], [128.35, -23.25], [128.25, -23.0], [128.35, -22.75], [128.25, -22.5], [128.47, -21.97], [129.0, -21.75], [129.53, -21.97], [129.68, -22.32], [130.03, -22.47], [130.18, -22.82], [130.53, -22.97], [130.75, -23.5], [130.65, -23.75], [130.75, -24.0], [130.53, -24.53], [130.0, -24.75], [129.75, -24.65], [129.68, -24.68], [129.65, -24.75], [129.75, -25.0], [129.65, -25.25], [129.75, -25.5], [129.53, -26.03], [129.18, -26.18], [129.03, -26.53], [128.68, -26.68], [128.53, -27.03], [128.0, -27.25], [127.47, -27.03], [127.25, -26.5], [127.35, -26.25], [127.32, -26.18], [127.25, -26.15], [127.0, -26.25], [126.47, -26.03], [126.25, -25.5], [126.35, -25.25], [126.25, -25.0], [126.35, -24.75]]]]}, "2010-01-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.35, -24.75], [126.25, -24.5], [126.35, -24.25], [126.25, -24.0], [126.35, -23.75], [126.25, -23.5], [126.47, -22.97], [127.0, -22.75], [127.53, -22.97], [127.68, -23.32], [127.75, -23.35], [128.0, -23.25], [128.25, -23.35], [128.32, -23.32], [128.35, -23.25], [128.25, -23.0], [128.35, -22.75], [128.25, -22.5], [128.47, -21.97], [129.0, -21.75], [129.53, -21.97], [129.68, -22.32], [130.03, -22.47], [130.18, -22.82], [130.53, -22.97], [130.75, -23.5], [130.65, -23.75], [130.75, -24.0], [130.53, -24.53], [130.0, -24.75], [129.75, -24.65], [129.68, -24.68], [129.65, -24.75], [129.75, -25.0], [129.65, -25.25], [129.75, -25.5], [129.53, -26.03], [129.18, -26.18], [129.03, -26.53], [128.68, -26.68], [128.53, -27.03], [128.0, -27.25], [127.47, -27.03], [127.25, -26.5], [127.35, -26.25], [127.32, -26.18], [127.25, -26.15], [127.0, -26.25], [126.47, -26.03], [126.25, -25.5], [126.35, -25.25], [126.25, -25.0], [126.35, -24.75]]]]}, "2010-01-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.35, -24.75], [126.25, -24.5], [126.35, -24.25], [126.25, -24.0], [126.35, -23.75], [126.25, -23.5], [126.47, -22.97], [127.0, -22.75], [127.53, -22.97], [127.68, -23.32], [127.75, -23.35], [128.0, -23.25], [128.25, -23.35], [128.5, -23.25], [129.0, -23.46], [129.5, -23.25], [129.75, -23.35], [130.0, -23.25], [130.53, -23.47], [130.75, -24.0], [130.53, -24.53], [130.0, -24.75], [129.75, -24.65], [129.68, -24.68], [129.65, -24.75], [129.75, -25.0], [129.65, -25.25], [129.75, -25.5], [129.53, -26.03], [129.18, -26.18], [129.03, -26.53], [128.68, -26.68], [128.53, -27.03], [128.0, -27.25], [127.47, -27.03], [127.25, -26.5], [127.35, -26.25], [127.32, -26.18], [127.25, -26.15], [127.0, -26.25], [126.47, -26.03], [126.25, -25.5], [126.35, -25.25], [126.25, -25.0], [126.35, -24.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -10.075580200470654}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.18390386635793}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.739488715177288, 25.98881063333414, 23.51221858341438, 25.778987100421432]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.955887370371386, 24.096105088323668, 19.539570245921425, 23.738615331468907]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.226222893485622, -5.27844121012914, -7.910014652485715, -5.6361436187725324]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.6480974568077045, -6.035368011784442, -10.075580200470654, -6.245797328425965]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.31785770674648, -1.4458480894586365, -2.087342755691235, -1.4787161211127782]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4304980892389467, -1.653856684067804, -2.514000612067445, -1.6345875196294755]}}