{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:02:31.531630", "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": "2015-Mar-24_to_2015-Mar-27_143.0_-32.5"}, "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": 2015030000873}, "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": "March 24 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 27 2015"}, "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": 52439.05428030268}, "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", "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": -32.5}, "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": 143.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "143.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 142.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 146.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -33.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -30.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-03-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.25, -32.0], [142.47, -31.47], [143.0, -31.25], [143.53, -31.47], [143.68, -31.82], [143.75, -31.85], [144.0, -31.75], [144.53, -31.97], [144.75, -32.5], [144.53, -33.03], [144.18, -33.18], [144.03, -33.53], [143.5, -33.75], [143.25, -33.65], [143.0, -33.75], [142.75, -33.65], [142.5, -33.75], [141.97, -33.53], [141.75, -33.0], [141.97, -32.47], [142.32, -32.32], [142.35, -32.25], [142.25, -32.0]]]]}, "2015-03-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.25, -32.0], [142.35, -31.75], [142.25, -31.5], [142.47, -30.97], [143.0, -30.75], [143.25, -30.85], [143.32, -30.82], [143.47, -30.47], [144.0, -30.25], [144.5, -30.46], [145.0, -30.25], [145.53, -30.47], [145.68, -30.82], [146.03, -30.97], [146.18, -31.32], [146.53, -31.47], [146.75, -32.0], [146.53, -32.53], [146.0, -32.75], [145.75, -32.65], [145.5, -32.75], [145.25, -32.65], [145.0, -32.75], [144.7, -32.62], [144.53, -33.03], [144.18, -33.18], [144.03, -33.53], [143.5, -33.75], [143.25, -33.65], [143.0, -33.75], [142.75, -33.65], [142.5, -33.75], [141.97, -33.53], [141.75, -33.0], [141.97, -32.47], [142.32, -32.32], [142.35, -32.25], [142.25, -32.0]]]]}, "2015-03-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.25, -32.0], [142.35, -31.75], [142.25, -31.5], [142.47, -30.97], [143.0, -30.75], [143.25, -30.85], [143.32, -30.82], [143.47, -30.47], [144.0, -30.25], [144.5, -30.46], [145.0, -30.25], [145.53, -30.47], [145.68, -30.82], [146.03, -30.97], [146.18, -31.32], [146.53, -31.47], [146.75, -32.0], [146.53, -32.53], [146.0, -32.75], [145.75, -32.65], [145.5, -32.75], [145.25, -32.65], [145.0, -32.75], [144.7, -32.62], [144.53, -33.03], [144.18, -33.18], [144.03, -33.53], [143.5, -33.75], [143.25, -33.65], [143.0, -33.75], [142.75, -33.65], [142.5, -33.75], [141.97, -33.53], [141.75, -33.0], [141.97, -32.47], [142.32, -32.32], [142.35, -32.25], [142.25, -32.0]]]]}, "2015-03-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.25, -32.0], [142.35, -31.75], [142.25, -31.5], [142.47, -30.97], [143.0, -30.75], [143.25, -30.85], [143.32, -30.82], [143.47, -30.47], [144.0, -30.25], [144.5, -30.46], [145.0, -30.25], [145.53, -30.47], [145.68, -30.82], [146.03, -30.97], [146.18, -31.32], [146.53, -31.47], [146.75, -32.0], [146.53, -32.53], [146.0, -32.75], [145.75, -32.65], [145.5, -32.75], [145.25, -32.65], [145.0, -32.75], [144.7, -32.62], [144.53, -33.03], [144.18, -33.18], [144.03, -33.53], [143.5, -33.75], [143.25, -33.65], [143.0, -33.75], [142.75, -33.65], [142.5, -33.75], [141.97, -33.53], [141.75, -33.0], [141.97, -32.47], [142.32, -32.32], [142.35, -32.25], [142.25, -32.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.714533632482187}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.648824668394329}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.1622718456685, 16.94248055996991, 15.67059710488968, 16.20724221979117]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.32805148089443, 15.70955274741209, 14.751809294166037, 14.759267774449825]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.718649232773048, -5.235349243889189, -6.293516134322831, -5.393170029438414]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.9473889904103885, -5.606028446593427, -6.714533632482187, -5.726189459042189]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3990098802791757, -1.3406241694478602, -1.6668132808449727, -1.460150886802047]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.4688129263528495, -1.382595694477533, -1.76160951067656, -1.537453424548789]}}