{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:38.513849", "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-28_to_2013-Mar-02_145.0_-30.5"}, "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": 2013020000924}, "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 28 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 02 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": 110100.51993382277}, "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", "E.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": -30.5}, "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": 145.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "145.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 143.25}, "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": -32.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -26.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-02-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.97, -26.47], [143.5, -26.25], [143.75, -26.35], [144.0, 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[142.75, -27.0], [142.97, -26.47]]]]}, "2013-03-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.97, -26.47], [143.5, -26.25], [143.75, -26.35], [144.0, -26.25], [144.53, -26.47], [144.68, -26.82], [145.03, -26.97], [145.25, -27.5], [145.15, -27.75], [145.2, -27.87], [145.5, -27.75], [145.75, -27.85], [146.0, -27.75], [146.53, -27.97], [146.75, -28.5], [146.65, -28.75], [146.68, -28.82], [146.75, -28.85], [147.0, -28.75], [147.53, -28.97], [147.68, -29.32], [148.03, -29.47], [148.18, -29.82], [148.53, -29.97], [148.75, -30.5], [148.65, -30.75], [148.75, -31.0], [148.53, -31.53], [148.18, -31.68], [148.15, -31.75], [148.25, -32.0], [148.03, -32.53], [147.5, -32.75], [146.97, -32.53], [146.82, -32.18], [146.75, -32.15], [146.5, -32.25], [145.97, -32.03], [145.82, -31.68], [145.75, -31.65], [145.5, -31.75], [144.97, -31.53], [144.82, -31.18], [144.47, -31.03], [144.25, -30.5], [144.47, -29.97], [144.82, -29.82], [144.85, -29.75], [144.82, -29.68], [144.47, -29.53], [144.32, -29.18], [144.25, -29.15], [144.0, -29.25], [143.75, -29.15], [143.5, -29.25], [142.97, -29.03], [142.75, -28.5], [142.96, -28.0], [142.75, -27.5], [142.85, -27.25], [142.75, -27.0], [142.97, -26.47]]]]}, "2013-03-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.97, -26.47], [143.5, -26.25], [143.75, -26.35], [144.0, -26.25], [144.53, -26.47], [144.68, -26.82], [145.03, -26.97], [145.25, -27.5], [145.15, -27.75], [145.2, -27.87], [145.5, -27.75], [145.75, -27.85], [146.0, -27.75], [146.53, -27.97], [146.75, -28.5], [146.65, -28.75], [146.68, -28.82], [146.75, -28.85], [147.0, -28.75], [147.53, -28.97], [147.68, -29.32], [148.03, -29.47], [148.18, -29.82], [148.53, -29.97], [148.75, -30.5], [148.65, -30.75], [148.75, -31.0], [148.53, -31.53], [148.18, -31.68], [148.15, -31.75], [148.25, -32.0], [148.03, -32.53], [147.5, -32.75], [146.97, -32.53], [146.82, -32.18], [146.75, -32.15], [146.5, -32.25], [145.97, -32.03], [145.82, -31.68], [145.75, -31.65], 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19.052200179397175]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.8213830428973985, -6.412411067305396, -5.615577302899862]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-9.432736118215189, -7.25436322323867, -6.526390794665076]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.995503160174449, -1.8821639147480094, -1.6704820801235511]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.7771582576297607, -2.1320646614701944, -2.0927748982389947]}}