{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:36.737449", "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": "2016-Nov-23_to_2016-Nov-26_147.0_-35.5"}, "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": 2016110000762}, "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": "November 23 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 26 2016"}, "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": 75700.30477674537}, "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": ["S.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": -35.5}, "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": 147.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "147.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 144.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 148.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -37.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -32.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.75, -33.0], [143.97, -32.47], [144.5, -32.25], [145.03, -32.47], [145.18, -32.82], [145.53, -32.97], [145.68, -33.32], [146.03, -33.47], [146.18, -33.82], [146.25, -33.85], [146.32, -33.82], [146.47, -33.47], [147.0, -33.25], [147.53, -33.47], [147.68, -33.82], [147.75, -33.85], [148.0, -33.75], [148.53, -33.97], [148.75, -34.5], [148.65, -34.75], [148.75, -35.0], [148.53, -35.53], [148.18, -35.68], [148.03, -36.03], [147.68, -36.18], [147.53, -36.53], [147.18, -36.68], [147.03, -37.03], [146.68, -37.18], [146.65, -37.25], [146.75, -37.5], [146.53, -38.03], [146.0, -38.25], [145.47, -38.03], [145.32, -37.68], [144.97, -37.53], [144.75, -37.0], [144.85, -36.75], [144.75, -36.5], [144.85, -36.25], [144.75, -36.0], [144.96, -35.5], [144.75, -35.0], [144.88, -34.7], [144.47, -34.53], [144.25, -34.0], [144.35, -33.75], [144.32, -33.68], [143.97, -33.53], [143.75, -33.0]]]]}, "2016-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.75, -33.0], [143.97, -32.47], [144.5, -32.25], [145.03, -32.47], [145.18, -32.82], [145.53, -32.97], [145.68, -33.32], [146.03, -33.47], [146.18, -33.82], [146.25, -33.85], [146.32, -33.82], [146.47, -33.47], [147.0, -33.25], [147.53, -33.47], [147.68, -33.82], [147.75, -33.85], [148.0, -33.75], [148.53, -33.97], [148.75, -34.5], [148.65, -34.75], [148.75, -35.0], [148.53, -35.53], [148.18, -35.68], [148.03, -36.03], [147.68, -36.18], [147.53, -36.53], [147.18, -36.68], [147.03, -37.03], [146.68, -37.18], [146.65, -37.25], [146.75, -37.5], [146.53, -38.03], [146.0, -38.25], [145.47, -38.03], [145.32, -37.68], [144.97, -37.53], [144.75, -37.0], [144.85, -36.75], [144.75, -36.5], [144.85, -36.25], [144.75, -36.0], [144.96, -35.5], [144.75, -35.0], [144.88, -34.7], [144.47, -34.53], [144.25, -34.0], [144.35, -33.75], [144.32, -33.68], [143.97, -33.53], [143.75, -33.0]]]]}, "2016-11-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.75, -33.0], [143.97, -32.47], [144.5, -32.25], [145.03, -32.47], [145.18, -32.82], [145.53, -32.97], [145.68, -33.32], [146.03, -33.47], [146.18, -33.82], [146.25, -33.85], [146.32, -33.82], [146.47, -33.47], [147.0, -33.25], [147.53, -33.47], [147.68, -33.82], [147.75, -33.85], [148.0, -33.75], [148.53, -33.97], [148.75, -34.5], [148.65, -34.75], [148.75, -35.0], [148.53, -35.53], [148.18, -35.68], [148.03, -36.03], [147.68, -36.18], [147.53, -36.53], [147.18, -36.68], [147.03, -37.03], [146.68, -37.18], [146.65, -37.25], [146.75, -37.5], [146.53, -38.03], [146.0, -38.25], [145.47, -38.03], [145.32, -37.68], [144.97, -37.53], [144.75, -37.0], [144.85, -36.75], [144.75, -36.5], [144.85, -36.25], [144.75, -36.0], [144.96, -35.5], [144.75, -35.0], [144.88, -34.7], [144.47, -34.53], [144.25, -34.0], [144.35, -33.75], [144.32, -33.68], [143.97, -33.53], [143.75, -33.0]]]]}, "2016-11-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.0, -34.75], [147.53, -34.97], [147.75, -35.5], [147.53, -36.03], [147.0, -36.25], [146.47, -36.03], [146.25, -35.5], [146.47, -34.97], [147.0, -34.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.672684323257329}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.507897109567144}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [12.316243855767027, 14.214977450283527, 14.894113959224342, 15.226584056634124]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.665682902125241, 8.46600461542505, 8.645608853470947, 15.226584056634124]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-7.747848847368973, -6.085871572494928, -5.728970948616344, -5.337895916202569]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-8.672684323257329, -7.008147708372519, -6.082773520895103, -5.337895916202569]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.844806847818677, -1.452536056127214, -1.3794195708424437, -1.2898528687278668]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.991165965275726, -1.6052394481982324, -1.5311300840296114, -1.2898528687278668]}}