{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:21:00.731307", "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-Aug-07_to_2020-Aug-10_141.0_-21.0"}, "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": 2020080000306}, "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": "August 07 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 10 2020"}, "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": 51731.76757787647}, "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": -21.0}, "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": 141.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "141.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 139.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 142.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -23.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -20.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-08-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.0, -22.75], [142.53, -22.97], [142.75, -23.5], [142.53, -24.03], [142.0, -24.25], [141.47, -24.03], [141.25, -23.5], [141.47, -22.97], [142.0, -22.75]]]]}, "2020-08-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[139.25, -20.5], [139.47, -19.97], [140.0, -19.75], [140.25, -19.85], [140.5, -19.75], [140.75, -19.85], [141.0, -19.75], [141.25, -19.85], [141.5, -19.75], [142.03, -19.97], [142.18, -20.32], [142.53, -20.47], [142.75, -21.0], [142.65, -21.25], [142.75, -21.5], [142.63, -21.8], [143.03, -21.97], [143.25, -22.5], [143.03, -23.03], [142.68, -23.18], [142.65, -23.25], [142.75, -23.5], [142.53, -24.03], [142.0, -24.25], [141.47, -24.03], [141.25, -23.5], [141.35, -23.25], [141.32, -23.18], [140.97, -23.03], [140.82, -22.68], [140.47, -22.53], [140.25, -22.0], [140.35, -21.75], [140.32, -21.68], [139.97, -21.53], [139.82, -21.18], [139.47, -21.03], [139.25, -20.5]]]]}, "2020-08-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[139.25, -20.5], [139.47, -19.97], [140.0, -19.75], [140.25, -19.85], [140.5, -19.75], [140.75, -19.85], [141.0, -19.75], [141.25, -19.85], [141.5, -19.75], [142.03, -19.97], [142.18, -20.32], [142.53, -20.47], [142.75, -21.0], [142.65, -21.25], [142.75, -21.5], [142.63, -21.8], [143.03, -21.97], [143.25, -22.5], [143.03, -23.03], [142.68, -23.18], [142.65, -23.25], [142.75, -23.5], [142.53, -24.03], [142.0, -24.25], [141.47, -24.03], [141.25, -23.5], [141.35, -23.25], [141.32, -23.18], [140.97, -23.03], [140.82, -22.68], [140.47, -22.53], [140.25, -22.0], [140.35, -21.75], [140.32, -21.68], [139.97, -21.53], [139.82, -21.18], [139.47, -21.03], [139.25, -20.5]]]]}, "2020-08-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[139.25, -20.5], [139.47, -19.97], [140.0, -19.75], [140.25, -19.85], [140.5, -19.75], [140.75, -19.85], [141.0, -19.75], [141.25, -19.85], [141.5, -19.75], [142.03, -19.97], [142.18, -20.32], [142.53, -20.47], [142.75, -21.0], [142.65, -21.25], [142.75, -21.5], [142.63, -21.8], [143.03, -21.97], [143.25, -22.5], [143.03, -23.03], [142.68, -23.18], [142.53, -23.53], [142.0, -23.75], [141.47, -23.53], [141.32, -23.18], [140.97, -23.03], [140.82, -22.68], [140.47, -22.53], [140.25, -22.0], [140.35, -21.75], [140.32, -21.68], [139.97, -21.53], [139.82, -21.18], [139.47, -21.03], [139.25, -20.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.235226817656326}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.776103683863835}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.003584659481305, 13.502450916255043, 13.770182725287043, 14.529852247224085]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.003584659481305, 11.307212062214774, 12.378875571171534, 13.45128455636734]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.412930657810023, -5.088575602576147, -4.907797416695508, -4.327173760232192]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.412930657810023, -6.235226817656326, -5.72315106575013, -4.78006618220337]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4249930674652234, -1.7831905877139187, -1.7101045150963812, -1.4969125022437073]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4249930674652234, -2.027570153385874, -1.826871278621272, -1.6518212859753987]}}