{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:39.553460", "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": "2010-May-12_to_2010-May-14_145.0_-28.0"}, "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": 2010050000385}, "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": "May 12 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 14 2010"}, "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": 52150.4868890005}, "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": -28.0}, "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": 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": 144.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 147.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -29.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -25.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-05-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.75, -29.0], [143.97, -28.47], [144.32, -28.32], [144.35, -28.25], [144.25, -28.0], [144.47, -27.47], [144.82, -27.32], [144.85, -27.25], [144.75, -27.0], [144.85, -26.75], [144.75, -26.5], [144.85, -26.25], [144.75, -26.0], [144.97, -25.47], [145.5, -25.25], [146.03, -25.47], [146.18, -25.82], [146.25, -25.85], [146.5, -25.75], [146.75, -25.85], [147.0, -25.75], [147.53, -25.97], [147.68, -26.32], [148.03, -26.47], [148.25, -27.0], [148.03, -27.53], [147.68, -27.68], [147.53, -28.03], [147.0, -28.25], [146.75, -28.15], [146.5, -28.25], [146.25, -28.15], [146.18, -28.18], [146.03, -28.53], [145.68, -28.68], [145.54, -29.0], [145.75, -29.5], [145.53, -30.03], [145.0, -30.25], [144.47, -30.03], [144.32, -29.68], [143.97, -29.53], [143.75, -29.0]]]]}, "2010-05-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.75, -29.0], [143.97, -28.47], [144.32, -28.32], [144.35, -28.25], [144.25, -28.0], [144.47, -27.47], [144.82, -27.32], [144.85, -27.25], [144.75, -27.0], [144.85, -26.75], [144.75, -26.5], [144.85, -26.25], [144.75, -26.0], [144.97, -25.47], [145.5, -25.25], [146.03, -25.47], [146.18, -25.82], [146.25, -25.85], [146.5, -25.75], [146.75, -25.85], [147.0, -25.75], [147.53, -25.97], [147.68, -26.32], [148.03, -26.47], [148.25, -27.0], [148.03, -27.53], [147.68, -27.68], [147.53, -28.03], [147.0, -28.25], [146.75, -28.15], [146.5, -28.25], [146.25, -28.15], [146.18, -28.18], [146.03, -28.53], [145.68, -28.68], [145.54, -29.0], [145.75, -29.5], [145.53, -30.03], [145.0, -30.25], [144.47, -30.03], [144.32, -29.68], [143.97, -29.53], [143.75, -29.0]]]]}, "2010-05-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.75, -29.0], [143.97, -28.47], [144.32, -28.32], [144.35, -28.25], [144.25, -28.0], [144.47, -27.47], [144.82, -27.32], [144.85, -27.25], [144.75, -27.0], [144.85, -26.75], [144.75, -26.5], [144.85, -26.25], [144.75, -26.0], [144.97, -25.47], [145.5, -25.25], [146.03, -25.47], [146.18, -25.82], [146.25, -25.85], [146.5, -25.75], [146.75, -25.85], [147.0, -25.75], [147.53, -25.97], [147.68, -26.32], [148.03, -26.47], [148.25, -27.0], [148.03, -27.53], [147.68, -27.68], [147.53, -28.03], [147.0, -28.25], [146.75, -28.15], [146.5, -28.25], [146.25, -28.15], [146.18, -28.18], [146.03, -28.53], [145.68, -28.68], [145.54, -29.0], [145.75, -29.5], [145.53, -30.03], [145.0, -30.25], [144.47, -30.03], [144.32, -29.68], [143.97, -29.53], [143.75, -29.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.357179300251744}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.011000863677629}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.196279281611453, 10.408733114663676, 12.034061141712812]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [10.153973198650021, 9.336743486446892, 11.350407383159052]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.228793107488833, -5.773363781519151, -4.0308457020249016]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.669148168488846, -6.357179300251744, -4.311482853966709]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7056097479524073, -1.9513014273373874, -1.385196031651743]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.81711589679517, -2.0650669980634384, -1.5069042473008083]}}