{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:38.402654", "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": "2013-Feb-26_to_2013-Feb-28_127.5_-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": 2013020000873}, "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 26 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 28 2013"}, "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": 97694.48262400809}, "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": 127.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "127.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 125.25}, "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": -27.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -23.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-02-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[124.97, -27.03], [124.75, -26.5], [124.97, -25.97], [125.5, -25.75], [125.75, -25.85], [126.0, -25.75], [126.25, -25.85], [126.38, -25.8], [126.25, -25.5], [126.35, -25.25], [126.32, -25.18], [125.97, -25.03], [125.75, -24.5], [125.97, -23.97], [126.32, -23.82], [126.47, -23.47], [127.0, -23.25], [127.25, -23.35], [127.32, -23.32], [127.47, -22.97], [128.0, -22.75], [128.53, -22.97], [128.75, -23.5], [128.65, -23.75], [128.68, -23.82], [129.03, -23.97], [129.18, -24.32], [129.25, -24.35], [129.5, -24.25], [130.03, -24.47], [130.25, -25.0], [130.15, -25.25], [130.25, -25.5], [130.15, -25.75], [130.25, -26.0], [130.03, -26.53], [129.68, -26.68], [129.53, -27.03], [129.0, -27.25], [128.75, -27.15], [128.5, -27.25], [128.25, -27.15], [128.0, -27.25], [127.75, -27.15], [127.5, -27.25], [127.25, -27.15], [127.18, -27.18], [127.03, -27.53], [126.5, -27.75], [125.97, -27.53], [125.82, -27.18], [125.75, -27.15], [125.5, -27.25], [124.97, -27.03]]]]}, "2013-02-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[124.97, -27.03], [124.75, -26.5], [124.97, -25.97], [125.5, -25.75], [125.75, -25.85], [126.0, -25.75], [126.25, -25.85], [126.38, -25.8], [126.25, -25.5], [126.35, -25.25], [126.32, -25.18], [125.97, -25.03], [125.75, -24.5], [125.97, -23.97], [126.32, -23.82], [126.47, -23.47], [127.0, -23.25], [127.25, -23.35], [127.32, -23.32], [127.47, -22.97], [128.0, -22.75], [128.53, -22.97], [128.75, -23.5], [128.65, -23.75], [128.68, -23.82], [129.03, -23.97], [129.18, -24.32], [129.25, -24.35], [129.5, -24.25], [130.03, -24.47], [130.25, -25.0], [130.15, -25.25], [130.25, -25.5], [130.15, -25.75], [130.25, -26.0], [130.03, -26.53], [129.68, -26.68], [129.53, -27.03], [129.0, -27.25], [128.75, -27.15], [128.5, -27.25], [128.25, -27.15], [128.0, -27.25], [127.75, -27.15], [127.5, -27.25], [127.25, -27.15], [127.18, -27.18], [127.03, -27.53], [126.5, -27.75], [125.97, -27.53], [125.82, -27.18], [125.75, -27.15], [125.5, -27.25], [124.97, -27.03]]]]}, "2013-02-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[124.97, -27.03], [124.75, -26.5], [124.97, -25.97], [125.5, -25.75], [125.75, -25.85], [126.0, -25.75], [126.25, -25.85], [126.38, -25.8], [126.25, -25.5], [126.35, -25.25], [126.32, -25.18], [125.97, -25.03], [125.75, -24.5], [125.97, -23.97], [126.32, -23.82], [126.47, -23.47], [127.0, -23.25], [127.25, -23.35], [127.32, -23.32], [127.47, -22.97], [128.0, -22.75], [128.53, -22.97], [128.75, -23.5], [128.65, -23.75], [128.68, -23.82], [129.03, -23.97], [129.18, -24.32], [129.25, -24.35], [129.5, -24.25], [130.03, -24.47], [130.25, -25.0], [130.15, -25.25], [130.25, -25.5], [130.15, -25.75], [130.25, -26.0], [130.03, -26.53], [129.68, -26.68], [129.53, -27.03], [129.0, -27.25], [128.75, -27.15], [128.5, -27.25], [128.25, -27.15], [128.0, -27.25], [127.75, -27.15], [127.5, -27.25], [127.25, -27.15], [127.18, -27.18], [127.03, -27.53], [126.5, -27.75], [125.97, -27.53], [125.82, -27.18], [125.75, -27.15], [125.5, -27.25], [124.97, -27.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.794779696853197}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -7.335569536973879}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.323681652753805, 20.725375590256363, 21.33803763707658]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.46608619649777, 18.94000659695604, 18.95035153305645]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.666130560678135, -8.092055731947244, -7.2485223182962715]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.887693720028665, -8.794779696853197, -8.218249203413336]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6831687538319677, -2.0594876342559423, -1.7941952140155613]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9952953627061987, -2.277295913091903, -2.1341814831208636]}}