{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:25:41.617981", "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": "2022-Dec-25_to_2022-Dec-27_140.0_-34.0"}, "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": 2022120002704}, "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": "December 25 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 27 2022"}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 103550.10577847733}, "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": -34.0}, "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": 140.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "140.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 140.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 144.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -37.5}, "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": [[[[140.0, -32.75], [140.25, -32.85], [140.5, -32.75], [140.75, -32.85], [141.0, -32.75], [141.53, -32.97], [141.68, -33.32], [141.75, -33.35], [142.0, -33.25], [142.25, -33.35], [142.5, -33.25], [143.03, -33.47], [143.18, -33.82], [143.53, -33.97], [143.75, -34.5], [143.65, -34.75], [143.68, -34.82], [143.75, -34.85], [144.0, -34.75], [144.53, -34.97], [144.75, -35.5], [144.65, -35.75], [144.75, -36.0], [144.63, -36.3], [145.03, -36.47], [145.25, -37.0], [145.03, -37.53], [144.68, -37.68], [144.53, -38.03], [144.0, -38.25], [143.47, -38.03], [143.25, -37.5], [143.35, -37.25], [143.32, -37.18], [143.25, -37.15], [143.0, -37.25], [142.75, -37.15], [142.5, -37.25], [141.97, -37.03], [141.82, -36.68], [141.75, -36.65], [141.5, -36.75], [141.25, -36.65], [141.0, -36.75], [140.47, -36.53], [140.25, -36.0], [140.35, -35.75], [140.32, -35.68], [139.97, -35.53], [139.75, -35.0], [139.85, -34.75], [139.82, -34.68], [139.47, -34.53], [139.25, -34.0], [139.35, -33.75], [139.25, -33.5], [139.47, -32.97], [140.0, -32.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Australia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-12-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[139.25, -33.5], [139.47, -32.97], [140.0, -32.75], [140.25, -32.85], [140.5, -32.75], [140.75, -32.85], [141.0, -32.75], [141.53, -32.97], [141.68, -33.32], [141.75, -33.35], [142.0, -33.25], [142.25, -33.35], [142.5, -33.25], [143.03, -33.47], [143.18, -33.82], [143.53, -33.97], [143.75, -34.5], [143.65, -34.75], [143.68, -34.82], [143.75, -34.85], [144.0, -34.75], [144.53, -34.97], [144.75, -35.5], [144.65, -35.75], [144.75, -36.0], [144.63, -36.3], [145.03, -36.47], [145.25, -37.0], [145.03, -37.53], [144.68, -37.68], [144.53, -38.03], [144.0, -38.25], [143.47, -38.03], [143.25, -37.5], [143.35, -37.25], [143.32, -37.18], [143.25, -37.15], [143.0, -37.25], [142.75, -37.15], [142.5, -37.25], [141.97, -37.03], [141.82, -36.68], [141.75, -36.65], [141.5, -36.75], [141.25, -36.65], [141.0, -36.75], [140.47, -36.53], [140.25, -36.0], [140.35, -35.75], [140.32, -35.68], [139.97, -35.53], [139.75, -35.0], [139.85, -34.75], [139.82, -34.68], [139.47, -34.53], [139.25, -34.0], [139.35, -33.75], [139.25, -33.5]]]]}, "2022-12-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[139.25, -33.5], [139.47, -32.97], [140.0, -32.75], [140.25, -32.85], [140.5, -32.75], [140.75, -32.85], [141.0, -32.75], [141.53, -32.97], [141.68, -33.32], [141.75, -33.35], [142.0, -33.25], [142.25, -33.35], [142.5, -33.25], [143.03, -33.47], [143.18, -33.82], [143.53, -33.97], [143.75, -34.5], [143.65, -34.75], [143.68, -34.82], [143.75, -34.85], [144.0, -34.75], [144.53, -34.97], [144.75, -35.5], [144.65, -35.75], [144.75, -36.0], [144.63, -36.3], [145.03, -36.47], [145.25, -37.0], [145.03, -37.53], [144.68, -37.68], [144.53, -38.03], [144.0, -38.25], [143.47, -38.03], [143.25, -37.5], [143.35, -37.25], [143.32, -37.18], [143.25, -37.15], [143.0, -37.25], [142.75, -37.15], [142.5, -37.25], [141.97, -37.03], [141.82, -36.68], [141.75, -36.65], [141.5, -36.75], [141.25, -36.65], [141.0, -36.75], [140.47, -36.53], [140.25, -36.0], [140.35, -35.75], [140.32, -35.68], [139.97, -35.53], [139.75, -35.0], [139.85, -34.75], [139.82, -34.68], [139.47, -34.53], [139.25, -34.0], [139.35, -33.75], [139.25, -33.5]]]]}, "2022-12-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[139.25, -33.5], [139.47, -32.97], [140.0, -32.75], [140.25, -32.85], [140.5, -32.75], [140.75, -32.85], [141.0, -32.75], [141.53, -32.97], [141.68, -33.32], [141.75, -33.35], [142.0, -33.25], [142.25, -33.35], [142.5, -33.25], [143.03, -33.47], [143.18, -33.82], [143.53, -33.97], [143.75, -34.5], [143.65, -34.75], [143.68, -34.82], [143.75, -34.85], [144.0, -34.75], [144.53, -34.97], [144.75, -35.5], [144.65, -35.75], [144.75, -36.0], [144.63, -36.3], [145.03, -36.47], [145.25, -37.0], [145.03, -37.53], [144.68, -37.68], [144.53, -38.03], [144.0, -38.25], [143.47, -38.03], [143.25, -37.5], [143.35, -37.25], [143.32, -37.18], [143.25, -37.15], [143.0, -37.25], [142.75, -37.15], [142.5, -37.25], [141.97, -37.03], [141.82, -36.68], [141.75, -36.65], [141.5, -36.75], [141.25, -36.65], [141.0, -36.75], [140.47, -36.53], [140.25, -36.0], [140.35, -35.75], [140.32, -35.68], [139.97, -35.53], [139.75, -35.0], [139.85, -34.75], [139.82, -34.68], [139.47, -34.53], [139.25, -34.0], [139.35, -33.75], [139.25, -33.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 11.322474400095587}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.340093782945058}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.29407940460476, 30.507176037949705, 32.166768163898666]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [31.87600956017951, 33.23375247668952, 34.285432148036534]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.204564496890592, 8.206062685100155, 9.60965416684441]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.44057281520611, 10.000462648362657, 11.322474400095587]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6190078411040423, 1.7761836601151033, 2.05112869376042]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.836444460593468, 2.269111045938914, 2.4598488348255794]}}