{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:22.123485", "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-Dec-27_to_2010-Dec-29_131.5_-14.5"}, "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": 2010120001219}, "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": "December 27 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 29 2010"}, "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": 50841.8247894609}, "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": ["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": -14.5}, "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": 131.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "131.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 130.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 134.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -16.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -12.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-12-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.35, -13.75], [130.25, -13.5], [130.47, -12.97], [130.82, -12.82], [130.97, -12.47], [131.5, -12.25], [132.03, -12.47], [132.25, -13.0], [132.15, -13.25], [132.18, -13.32], [132.53, -13.47], [132.75, -14.0], [132.65, -14.25], [132.68, -14.32], [132.75, -14.35], [133.0, -14.25], [133.53, -14.47], [133.68, -14.82], [134.03, -14.97], [134.18, -15.32], [134.25, -15.35], [134.5, -15.25], [135.03, -15.47], [135.25, -16.0], [135.03, -16.53], [134.5, -16.75], [134.25, -16.65], [134.0, -16.75], [133.47, -16.53], [133.32, -16.18], [133.25, -16.15], [133.0, -16.25], [132.47, -16.03], [132.32, -15.68], [132.25, -15.65], [132.0, -15.75], [131.75, -15.65], [131.5, -15.75], [130.97, -15.53], [130.82, -15.18], [130.47, -15.03], [130.25, -14.5], [130.35, -14.25], [130.25, -14.0], [130.35, -13.75]]]]}, "2010-12-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.35, -13.75], [130.25, -13.5], [130.47, -12.97], [130.82, -12.82], [130.97, -12.47], [131.5, -12.25], [132.03, -12.47], [132.25, -13.0], [132.15, -13.25], [132.18, -13.32], [132.53, -13.47], [132.75, -14.0], [132.65, -14.25], [132.68, -14.32], [132.75, -14.35], [133.0, -14.25], [133.53, -14.47], [133.68, -14.82], [134.03, -14.97], [134.18, -15.32], [134.25, -15.35], [134.5, -15.25], [135.03, -15.47], [135.25, -16.0], [135.03, -16.53], [134.5, -16.75], [134.25, -16.65], [134.0, -16.75], [133.47, -16.53], [133.32, -16.18], [133.25, -16.15], [133.0, -16.25], [132.47, -16.03], [132.32, -15.68], [132.25, -15.65], [132.0, -15.75], [131.75, -15.65], [131.5, -15.75], [130.97, -15.53], [130.82, -15.18], [130.47, -15.03], [130.25, -14.5], [130.35, -14.25], [130.25, -14.0], [130.35, -13.75]]]]}, "2010-12-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.35, -13.75], [130.25, -13.5], [130.47, -12.97], [130.82, -12.82], [130.97, -12.47], [131.5, -12.25], [132.03, -12.47], [132.25, -13.0], [132.15, -13.25], [132.18, -13.32], [132.53, -13.47], [132.75, -14.0], [132.65, -14.25], [132.68, -14.32], [132.75, -14.35], [133.0, -14.25], [133.53, -14.47], [133.68, -14.82], [134.03, -14.97], [134.18, -15.32], [134.25, -15.35], [134.5, -15.25], [135.03, -15.47], [135.25, -16.0], [135.03, -16.53], [134.5, -16.75], [134.25, -16.65], [134.0, -16.75], [133.47, -16.53], [133.32, -16.18], [133.25, -16.15], [133.0, -16.25], [132.47, -16.03], [132.32, -15.68], [132.25, -15.65], [132.0, -15.75], [131.75, -15.65], [131.5, -15.75], [130.97, -15.53], [130.82, -15.18], [130.47, -15.03], [130.25, -14.5], [130.35, -14.25], [130.25, -14.0], [130.35, -13.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.7488344790438077}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.8287601865791596}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.563033004545844, 25.7076396864544, 25.044019550002588]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.98159866027987, 25.019895381909123, 24.16634880019234]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.7788181236045677, -2.5388360380269197, -3.168626398105991]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.7091241299369813, -3.7488344790438077, -3.720996838694134]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4957398573529537, -1.388881626742104, -1.7150851066451909]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7384422755955178, -1.7369363670324602, -2.3126022487596813]}}