{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:18:45.040151", "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": "2020-Feb-02_to_2020-Feb-04_132.0_-23.0"}, "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": 2020020000147}, "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 02 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 04 2020"}, "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": 92236.89847013702}, "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", "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": -23.0}, "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": 132.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "132.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 128.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 133.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -23.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -19.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-02-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.97, -18.97], [128.5, -18.75], [128.75, -18.85], [129.0, -18.75], [129.25, -18.85], [129.5, -18.75], [129.75, -18.85], [130.0, -18.75], [130.25, -18.85], [130.5, -18.75], [131.03, -18.97], [131.25, -19.5], [131.13, -19.8], [131.25, -19.85], [131.5, -19.75], [131.75, -19.85], [132.0, -19.75], [132.53, -19.97], [132.75, -20.5], [132.65, -20.75], [132.75, -21.0], [132.53, -21.53], [132.0, -21.75], [132.25, -21.85], [132.5, -21.75], [133.03, -21.97], [133.18, -22.32], [133.53, -22.47], [133.75, -23.0], [133.53, -23.53], [133.0, -23.75], [132.75, -23.65], [132.5, -23.75], [132.25, -23.65], [132.0, -23.75], [131.75, -23.65], [131.5, -23.75], [131.25, -23.65], [131.0, -23.75], [130.47, -23.53], [130.25, -23.0], [130.35, -22.75], [130.32, -22.68], [129.97, -22.53], [129.82, -22.18], [129.47, -22.03], [129.25, -21.5], [129.35, -21.25], [129.32, -21.18], [129.25, -21.15], [129.0, -21.25], [128.47, -21.03], [128.32, -20.68], [127.97, -20.53], [127.75, -20.0], [127.85, -19.75], [127.75, -19.5], [127.97, -18.97]], [[131.75, -21.65], [131.68, -21.68], [131.63, -21.8], [131.75, -21.85], [132.0, -21.75], [131.75, -21.65]]]]}, "2020-02-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.97, -18.97], [128.5, -18.75], [128.75, -18.85], [129.0, -18.75], [129.25, -18.85], [129.5, -18.75], [129.75, -18.85], [130.0, -18.75], [130.25, -18.85], [130.5, -18.75], [131.03, -18.97], [131.25, -19.5], [131.13, -19.8], [131.25, -19.85], [131.5, -19.75], [131.75, -19.85], [132.0, -19.75], [132.53, -19.97], [132.75, -20.5], [132.65, -20.75], [132.75, -21.0], [132.53, -21.53], [132.0, -21.75], [132.25, -21.85], [132.5, -21.75], [133.03, -21.97], [133.18, -22.32], [133.53, -22.47], [133.75, -23.0], [133.53, -23.53], [133.0, -23.75], [132.75, -23.65], [132.5, -23.75], [132.25, -23.65], [132.0, -23.75], [131.75, -23.65], [131.5, -23.75], [131.25, -23.65], [131.0, -23.75], [130.47, -23.53], [130.25, -23.0], [130.35, -22.75], [130.32, -22.68], [129.97, -22.53], [129.82, -22.18], [129.47, -22.03], [129.25, -21.5], [129.35, -21.25], [129.32, -21.18], [129.25, -21.15], [129.0, -21.25], [128.47, -21.03], [128.32, -20.68], [127.97, -20.53], [127.75, -20.0], [127.85, -19.75], [127.75, -19.5], [127.97, -18.97]], [[131.75, -21.65], [131.68, -21.68], [131.63, -21.8], [131.75, -21.85], [132.0, -21.75], [131.75, -21.65]]]]}, "2020-02-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.97, -18.97], [128.5, -18.75], [128.75, -18.85], [129.0, -18.75], [129.25, -18.85], [129.5, -18.75], [129.75, -18.85], [130.0, -18.75], [130.25, -18.85], [130.5, -18.75], [131.03, -18.97], [131.25, -19.5], [131.13, -19.8], [131.25, -19.85], [131.5, -19.75], [131.75, -19.85], [132.0, -19.75], [132.53, -19.97], [132.75, -20.5], [132.65, -20.75], [132.75, -21.0], [132.53, -21.53], [132.0, -21.75], [132.25, -21.85], [132.5, -21.75], [133.03, -21.97], [133.18, -22.32], [133.53, -22.47], [133.75, -23.0], [133.53, -23.53], [133.0, -23.75], [132.75, -23.65], [132.5, -23.75], [132.25, -23.65], [132.0, -23.75], [131.75, -23.65], 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t2m", "description": "The daily evolution of maximum t2m.", "value": [21.072360729769173, 23.715599658647022, 25.459640745241813]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.994493259092444, -5.324178582469132, -4.204647532286456]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.649703538787207, -6.155606027452336, -4.624272540097081]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9949266212270982, -1.765375689781157, -1.409121111884824]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.892961842158517, -2.112533469454353, -1.5276533746858147]}}