{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:26.832029", "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-Jul-27_to_2015-Jul-29_144.5_-30.0"}, "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": 2015070001156}, "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": "July 27 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 29 2015"}, "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": 115630.2144300349}, "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": -30.0}, "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": 144.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "144.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 141.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 147.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -31.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -27.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-07-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[141.35, -29.75], [141.25, -29.5], [141.47, -28.97], 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"2015-07-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[141.35, -29.75], [141.25, -29.5], [141.47, -28.97], [141.82, -28.82], [141.97, -28.47], [142.32, -28.32], [142.47, -27.97], [142.82, -27.82], [142.97, -27.47], [143.32, -27.32], [143.47, -26.97], [144.0, -26.75], [144.53, -26.97], [144.75, -27.5], [144.65, -27.75], [144.68, -27.82], [145.0, -27.96], [145.5, -27.75], [145.75, -27.85], [146.0, -27.75], [146.53, -27.97], [146.68, -28.32], [146.75, -28.35], [147.0, -28.25], [147.53, -28.47], [147.75, -29.0], [147.53, -29.53], [147.18, -29.68], [147.03, -30.03], [146.5, -30.25], [145.97, -30.03], [145.82, -29.68], [145.75, -29.65], [145.68, -29.68], [145.65, -29.75], [145.75, -30.0], [145.65, -30.25], [145.75, -30.5], [145.53, -31.03], [145.18, -31.18], [145.03, -31.53], [144.5, -31.75], [144.25, -31.65], [144.18, -31.68], [144.03, -32.03], [143.5, -32.25], [142.97, -32.03], [142.75, -31.5], [142.85, -31.25], [142.82, -31.18], [142.75, -31.15], [142.5, -31.25], [142.25, -31.15], [142.0, -31.25], [141.47, -31.03], [141.25, -30.5], [141.35, -30.25], [141.25, -30.0], [141.35, -29.75]]]]}, "2015-07-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[141.35, -29.75], [141.25, -29.5], [141.47, -28.97], [141.82, -28.82], [141.97, -28.47], [142.32, -28.32], [142.47, -27.97], [142.82, -27.82], [142.97, -27.47], [143.32, -27.32], [143.47, -26.97], [144.0, -26.75], [144.53, -26.97], [144.75, -27.5], [144.65, -27.75], [144.68, -27.82], [145.0, -27.96], [145.5, -27.75], [145.75, -27.85], [146.0, -27.75], [146.53, -27.97], [146.68, -28.32], [146.75, -28.35], [147.0, -28.25], [147.53, -28.47], [147.75, -29.0], [147.53, -29.53], [147.18, -29.68], [147.03, -30.03], [146.5, -30.25], [145.97, -30.03], [145.82, -29.68], [145.75, -29.65], [145.68, -29.68], [145.65, -29.75], [145.75, -30.0], [145.65, -30.25], [145.75, -30.5], [145.53, -31.03], [145.18, -31.18], [145.03, -31.53], [144.5, -31.75], [144.25, -31.65], [144.18, -31.68], [144.03, -32.03], [143.5, -32.25], [142.97, -32.03], [142.75, -31.5], [142.85, -31.25], [142.82, -31.18], [142.75, -31.15], [142.5, -31.25], [142.25, -31.15], [142.0, -31.25], [141.47, -31.03], [141.25, -30.5], [141.35, -30.25], [141.25, -30.0], [141.35, -29.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.623778552577448}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.364143161056586}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [7.990836224695045, 7.948158447469382, 8.751819062189838]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.268886329354757, 7.172269064230932, 7.9732046183948455]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.612895945127827, -4.645002235943613, -3.834531302098321]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.623778552577448, -5.386498114802407, -4.208560523304186]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6854940032937062, -1.7034490152260213, -1.369113487489046]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1465359926312133, -1.965817056650961, -1.5718155198611594]}}