{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:00:56.873306", "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": "2024-Sep-14_to_2024-Sep-16_134.0_-38.5"}, "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": 2024090000328}, "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": "September 14 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 16 2024"}, "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": 302258.86877434235}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Oceania"]}, "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": -38.5}, "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": 134.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "134.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 133.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 146.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -40.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -33.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[133.5, -37.75], [133.75, -37.85], [134.0, -37.75], [134.25, -37.85], [134.5, -37.75], [134.75, -37.85], [134.82, -37.82], [134.97, -37.47], [135.32, -37.32], [135.47, -36.97], [135.82, -36.82], [135.97, -36.47], [136.5, -36.25], [136.75, -36.35], [137.0, -36.25], [137.25, -36.35], [137.5, -36.25], [137.75, -36.35], [137.88, -36.3], [137.82, -36.18], [137.47, -36.03], [137.3, -35.62], [137.0, -35.75], [136.47, -35.53], [136.32, -35.18], [135.97, -35.03], [135.75, -34.5], [135.97, -33.97], [136.32, -33.82], [136.47, -33.47], [136.82, -33.32], [136.97, -32.97], [137.5, -32.75], [138.03, -32.97], [138.25, -33.5], [138.15, -33.75], [138.18, -33.82], [138.5, -33.96], [139.0, -33.75], [139.25, -33.85], [139.5, -33.75], [139.75, -33.85], [140.0, -33.75], [140.25, -33.85], [140.5, -33.75], [140.75, -33.85], [140.82, -33.82], [140.97, -33.47], [141.5, -33.25], [141.75, -33.35], [142.0, -33.25], [142.25, -33.35], [142.5, -33.25], [142.75, -33.35], [142.82, -33.32], [142.97, -32.97], [143.5, -32.75], [143.75, -32.85], [144.0, -32.75], [144.25, -32.85], [144.5, -32.75], [144.75, -32.85], [145.0, -32.75], [145.25, -32.85], [145.5, -32.75], [145.75, -32.85], [146.0, -32.75], [146.53, -32.97], [146.75, -33.5], [146.53, -34.03], [146.18, -34.18], [146.03, -34.53], [145.5, -34.75], [145.25, -34.65], [145.18, -34.68], [145.03, -35.03], [144.5, -35.25], [144.25, -35.15], [144.18, -35.18], [144.03, -35.53], [143.5, -35.75], [143.25, -35.65], [143.18, -35.68], [143.03, -36.03], [142.5, -36.25], [142.25, -36.15], [142.0, -36.25], [141.47, -36.03], [141.32, -35.68], [141.25, -35.65], [141.0, -35.75], [140.75, -35.65], [140.5, -35.75], [140.25, -35.65], [140.18, -35.68], [140.15, -35.75], [140.25, -36.0], [140.15, -36.25], [140.25, -36.5], [140.15, -36.75], [140.18, -36.82], [140.53, -36.97], [140.68, -37.32], [141.03, -37.47], [141.25, -38.0], [141.15, -38.25], [141.25, -38.5], [141.03, -39.03], [140.68, -39.18], [140.53, -39.53], [140.0, -39.75], [139.75, -39.65], [139.68, -39.68], [139.53, -40.03], [139.0, -40.25], [138.75, -40.15], [138.5, -40.25], [138.25, -40.15], [138.18, -40.18], [138.03, -40.53], [137.5, -40.75], [137.25, -40.65], [137.0, -40.75], [136.47, -40.53], [136.32, -40.18], [136.25, -40.15], [136.0, -40.25], [135.75, -40.15], [135.5, -40.25], [135.25, -40.15], [135.0, -40.25], [134.47, -40.03], [134.32, -39.68], [134.25, -39.65], [134.0, -39.75], [133.75, -39.65], [133.5, -39.75], [132.97, -39.53], [132.75, -39.0], [132.85, -38.75], [132.75, -38.5], [132.97, -37.97], [133.5, -37.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.Australia", "E.Australia", "S.Australia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-09-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.75, -38.5], [132.97, -37.97], [133.5, -37.75], [133.75, -37.85], [134.0, -37.75], [134.25, -37.85], [134.5, -37.75], [134.75, -37.85], [134.82, -37.82], [134.97, -37.47], [135.32, -37.32], [135.47, -36.97], [135.82, -36.82], [135.97, -36.47], [136.5, -36.25], [136.75, -36.35], [137.0, -36.25], [137.25, -36.35], [137.5, -36.25], [137.75, -36.35], [137.88, -36.3], [137.82, -36.18], [137.47, -36.03], [137.3, -35.62], [137.0, -35.75], [136.47, -35.53], [136.32, -35.18], [135.97, -35.03], [135.75, -34.5], [135.97, -33.97], [136.32, -33.82], [136.47, -33.47], [136.82, -33.32], [136.97, -32.97], [137.5, -32.75], [138.03, -32.97], [138.25, -33.5], [138.15, -33.75], [138.18, -33.82], [138.5, -33.96], [139.0, -33.75], [139.25, -33.85], [139.5, -33.75], [139.75, -33.85], [140.0, -33.75], [140.25, -33.85], [140.5, -33.75], [140.75, -33.85], [140.82, -33.82], [140.97, -33.47], [141.5, -33.25], [141.75, -33.35], [142.0, -33.25], [142.25, -33.35], [142.5, -33.25], [142.75, -33.35], [142.82, -33.32], [142.97, -32.97], [143.5, -32.75], [143.75, -32.85], [144.0, -32.75], [144.25, -32.85], [144.5, -32.75], [144.75, -32.85], [145.0, -32.75], [145.25, -32.85], [145.5, -32.75], [145.75, -32.85], [146.0, -32.75], [146.53, -32.97], [146.75, -33.5], [146.53, -34.03], [146.18, -34.18], [146.03, -34.53], [145.5, -34.75], [145.25, -34.65], [145.18, -34.68], [145.03, -35.03], [144.5, -35.25], [144.25, -35.15], [144.18, -35.18], [144.03, -35.53], [143.5, -35.75], [143.25, -35.65], [143.18, -35.68], [143.03, -36.03], [142.5, -36.25], [142.25, -36.15], [142.0, -36.25], [141.47, -36.03], [141.32, -35.68], [141.25, -35.65], [141.0, -35.75], [140.75, -35.65], [140.5, -35.75], [140.25, -35.65], [140.18, -35.68], [140.15, -35.75], [140.25, -36.0], [140.15, -36.25], [140.25, -36.5], [140.15, -36.75], [140.18, -36.82], [140.53, -36.97], [140.68, -37.32], [141.03, -37.47], [141.25, -38.0], [141.15, -38.25], [141.25, -38.5], [141.03, -39.03], [140.68, -39.18], [140.53, -39.53], [140.0, -39.75], [139.75, -39.65], [139.68, -39.68], [139.53, -40.03], [139.0, -40.25], [138.75, -40.15], [138.5, -40.25], [138.25, -40.15], [138.18, -40.18], [138.03, -40.53], [137.5, -40.75], [137.25, -40.65], [137.0, -40.75], [136.47, -40.53], [136.32, -40.18], [136.25, -40.15], [136.0, -40.25], [135.75, -40.15], [135.5, -40.25], [135.25, -40.15], [135.0, -40.25], [134.47, -40.03], [134.32, -39.68], [134.25, -39.65], [134.0, -39.75], [133.75, -39.65], [133.5, -39.75], [132.97, -39.53], [132.75, -39.0], [132.85, -38.75], [132.75, -38.5]]]]}, "2024-09-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.75, -38.5], [132.97, -37.97], [133.5, -37.75], [133.75, -37.85], [134.0, -37.75], [134.25, -37.85], [134.5, -37.75], [134.75, -37.85], [134.82, -37.82], [134.97, -37.47], [135.32, -37.32], [135.47, -36.97], [135.82, -36.82], [135.97, -36.47], [136.5, -36.25], [136.75, -36.35], [137.0, -36.25], [137.25, -36.35], [137.5, -36.25], [137.75, -36.35], [137.88, -36.3], [137.82, -36.18], [137.47, -36.03], [137.3, -35.62], [137.0, -35.75], [136.47, -35.53], [136.32, -35.18], [135.97, -35.03], [135.75, -34.5], [135.97, -33.97], [136.32, -33.82], [136.47, -33.47], [136.82, -33.32], [136.97, -32.97], [137.5, -32.75], [138.03, -32.97], [138.25, -33.5], [138.15, -33.75], [138.18, -33.82], [138.5, -33.96], [139.0, -33.75], [139.25, -33.85], [139.5, -33.75], [139.75, -33.85], [140.0, -33.75], [140.25, -33.85], [140.5, -33.75], [140.75, -33.85], [140.82, -33.82], [140.97, -33.47], [141.5, -33.25], [141.75, -33.35], [142.0, -33.25], [142.25, -33.35], [142.5, -33.25], [142.75, -33.35], [142.82, -33.32], [142.97, -32.97], [143.5, -32.75], [143.75, -32.85], [144.0, -32.75], [144.25, -32.85], [144.5, -32.75], [144.75, -32.85], [145.0, -32.75], [145.25, -32.85], [145.5, -32.75], [145.75, -32.85], [146.0, -32.75], [146.53, -32.97], [146.75, -33.5], [146.53, -34.03], [146.18, -34.18], [146.03, -34.53], [145.5, -34.75], [145.25, -34.65], [145.18, -34.68], [145.03, -35.03], [144.5, -35.25], [144.25, -35.15], [144.18, -35.18], [144.03, -35.53], [143.5, -35.75], [143.25, -35.65], [143.18, -35.68], [143.03, -36.03], [142.5, -36.25], [142.25, -36.15], [142.0, -36.25], [141.47, -36.03], [141.32, -35.68], [141.25, -35.65], [141.0, -35.75], [140.75, -35.65], [140.5, -35.75], [140.25, -35.65], [140.18, -35.68], [140.15, -35.75], [140.25, -36.0], [140.15, -36.25], [140.25, -36.5], [140.15, -36.75], [140.18, -36.82], [140.53, -36.97], [140.68, -37.32], [141.03, -37.47], [141.25, -38.0], [141.15, -38.25], [141.25, -38.5], [141.03, -39.03], [140.68, -39.18], [140.53, -39.53], [140.0, -39.75], [139.75, -39.65], [139.68, -39.68], [139.53, -40.03], [139.0, -40.25], [138.75, -40.15], [138.5, -40.25], [138.25, -40.15], [138.18, -40.18], [138.03, -40.53], [137.5, -40.75], [137.25, -40.65], [137.0, -40.75], [136.47, -40.53], [136.32, -40.18], [136.25, -40.15], [136.0, -40.25], [135.75, -40.15], [135.5, -40.25], [135.25, -40.15], [135.0, -40.25], [134.47, -40.03], [134.32, -39.68], [134.25, -39.65], [134.0, -39.75], [133.75, -39.65], [133.5, -39.75], [132.97, -39.53], [132.75, -39.0], [132.85, -38.75], [132.75, -38.5]]]]}, "2024-09-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[132.75, -38.5], [132.97, -37.97], [133.5, -37.75], [133.75, -37.85], [134.0, -37.75], [134.25, -37.85], [134.5, -37.75], [134.75, -37.85], [134.82, -37.82], [134.97, -37.47], [135.32, -37.32], [135.47, -36.97], [135.82, -36.82], [135.97, -36.47], [136.5, -36.25], [136.75, -36.35], [137.0, -36.25], [137.25, -36.35], [137.5, -36.25], [137.75, -36.35], [137.88, -36.3], [137.82, -36.18], [137.47, -36.03], [137.3, -35.62], [137.0, -35.75], [136.47, -35.53], [136.32, -35.18], [135.97, -35.03], [135.75, -34.5], [135.97, -33.97], [136.32, -33.82], [136.47, -33.47], [136.82, -33.32], [136.97, -32.97], [137.5, -32.75], [138.03, -32.97], [138.25, -33.5], [138.15, -33.75], [138.18, -33.82], [138.5, -33.96], [139.0, -33.75], [139.25, -33.85], [139.5, -33.75], [139.75, -33.85], [140.0, -33.75], [140.25, -33.85], [140.5, -33.75], [140.75, -33.85], [140.82, -33.82], [140.97, -33.47], [141.5, -33.25], [141.75, -33.35], [142.0, -33.25], [142.25, -33.35], [142.5, -33.25], [142.75, -33.35], [142.82, -33.32], [142.97, -32.97], [143.5, -32.75], [143.75, -32.85], [144.0, -32.75], [144.25, -32.85], [144.5, -32.75], [144.75, -32.85], [145.0, -32.75], [145.25, -32.85], [145.5, -32.75], [145.75, -32.85], [146.0, -32.75], [146.53, -32.97], [146.75, -33.5], [146.53, -34.03], [146.18, -34.18], [146.03, -34.53], [145.5, -34.75], [145.25, -34.65], [145.18, -34.68], [145.03, -35.03], [144.5, -35.25], [144.25, -35.15], [144.18, -35.18], [144.03, -35.53], [143.5, -35.75], [143.25, -35.65], [143.18, -35.68], [143.03, -36.03], [142.5, -36.25], [142.25, -36.15], [142.0, -36.25], [141.47, -36.03], [141.32, -35.68], [141.25, -35.65], [141.0, -35.75], [140.75, -35.65], [140.5, -35.75], [140.25, -35.65], [140.18, -35.68], [140.15, -35.75], [140.25, -36.0], [140.15, -36.25], [140.25, -36.5], [140.15, -36.75], [140.18, -36.82], [140.53, -36.97], [140.68, -37.32], [141.03, -37.47], [141.25, -38.0], [141.15, -38.25], [141.25, -38.5], [141.03, -39.03], [140.68, -39.18], [140.53, -39.53], [140.0, -39.75], [139.75, -39.65], [139.68, -39.68], [139.53, -40.03], [139.0, -40.25], [138.75, -40.15], [138.5, -40.25], [138.25, -40.15], [138.18, -40.18], [138.03, -40.53], [137.5, -40.75], [137.25, -40.65], [137.0, -40.75], [136.47, -40.53], [136.32, -40.18], [136.25, -40.15], [136.0, -40.25], [135.75, -40.15], [135.5, -40.25], [135.25, -40.15], [135.0, -40.25], [134.47, -40.03], [134.32, -39.68], [134.25, -39.65], [134.0, -39.75], [133.75, -39.65], [133.5, -39.75], [132.97, -39.53], [132.75, -39.0], [132.85, -38.75], [132.75, -38.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.396256125332002}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.8206391014866092}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [10.167149615678682, 9.990846231596095, 10.1480420263739]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.899378712972009, 7.202937062581384, 6.744863128662132]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.7511341334453876, -2.928490223043201, -2.7822929479712304]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.0124377316522555, -6.396256125332002, -4.825763409851277]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4155071918525426, -1.5015646748486948, -1.4991315408120285]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7375020617237322, -1.8403575589432135, -2.058096363567582]}}