{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:40.706993", "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": "2019-Oct-26_to_2019-Oct-29_132.0_-17.5"}, "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": 2019100000867}, "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": "October 26 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 29 2019"}, "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": 135332.64980766154}, "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": -17.5}, "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": 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": 133.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -20.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -15.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-10-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[128.35, -17.75], [128.25, -17.5], [128.47, -16.97], [129.0, -16.75], [129.25, -16.85], [129.5, -16.75], [130.03, -16.97], [130.18, -17.32], [130.53, -17.47], [130.75, -18.0], [130.65, -18.25], [130.75, -18.5], [130.65, -18.75], [130.75, -19.0], [130.53, -19.53], [130.0, -19.75], [129.47, -19.53], [129.32, -19.18], [129.25, -19.15], [129.0, -19.25], [128.47, -19.03], [128.25, -18.5], [128.35, -18.25], [128.25, -18.0], [128.35, -17.75]]]]}, "2019-10-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.75, -17.5], [127.97, -16.97], [128.5, -16.75], [128.75, -16.85], [128.82, -16.82], [128.97, -16.47], [129.5, -16.25], [129.75, -16.35], [129.82, -16.32], [129.97, -15.97], [130.32, -15.82], [130.47, -15.47], [131.0, -15.25], [131.53, -15.47], [131.68, -15.82], [131.75, -15.85], [132.0, -15.75], [132.5, -15.96], [133.0, -15.75], [133.25, -15.85], [133.5, -15.75], [134.03, -15.97], [134.25, -16.5], [134.03, -17.03], [133.5, -17.25], [134.03, -17.47], [134.25, -18.0], [134.15, -18.25], [134.25, -18.5], [134.03, -19.03], [133.5, 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[27.340430454371017, 25.274221439111386, 25.440793804147518, 27.69854663781507]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.926934204719373, 21.19002580424842, 22.99370535501265, 25.027251051213]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.554432169944372, -5.809864418141643, -5.714764927267313, -3.5326397255305437]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.464328448176445, -9.254801571473365, -8.787531456600675, -5.350077868472226]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4927545247653693, -2.558264416917999, -2.5590929859335105, -1.5891816151659814]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7251371976291774, -3.7510760848751645, -3.6882200906570635, -2.0040190869592305]}}