{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:04:35.058515", "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": "2025-Apr-06_to_2025-Apr-09_122.0_-36.0"}, "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": 2025040001282}, "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": "April 06 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 09 2025"}, "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": "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": 50587.61477377942}, "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": ["Indian Ocean"]}, "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": -36.0}, "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": 122.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "122.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 121.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 125.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -36.5}, "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": [[[[121.32, -34.82], [121.47, -34.47], [121.82, -34.32], [121.97, -33.97], [122.5, -33.75], [122.75, -33.85], [122.82, -33.82], [122.97, -33.47], [123.5, -33.25], [123.75, -33.35], [123.82, -33.32], [123.97, -32.97], [124.5, -32.75], [124.75, -32.85], [125.0, -32.75], [125.53, -32.97], [125.75, -33.5], [125.53, -34.03], [125.18, -34.18], [125.03, -34.53], [124.5, -34.75], [124.25, -34.65], [124.18, -34.68], [124.03, -35.03], [123.68, -35.18], [123.54, -35.5], [123.75, -36.0], [123.65, -36.25], [123.75, -36.5], [123.53, -37.03], [123.0, -37.25], [122.75, -37.15], [122.5, -37.25], [122.25, -37.15], [122.0, -37.25], [121.47, -37.03], [121.25, -36.5], [121.35, -36.25], [121.32, -36.18], [120.97, -36.03], [120.75, -35.5], [120.97, -34.97], [121.32, -34.82]]]]}}, "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": {"2025-04-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.97, -36.03], [120.75, -35.5], [120.97, -34.97], [121.32, -34.82], [121.47, -34.47], [121.82, -34.32], [121.97, -33.97], [122.5, -33.75], [122.75, -33.85], [122.82, -33.82], [122.97, -33.47], [123.5, -33.25], [123.75, -33.35], [123.82, -33.32], [123.97, -32.97], [124.5, -32.75], [124.75, -32.85], [125.0, -32.75], [125.53, -32.97], [125.75, -33.5], [125.53, -34.03], [125.18, -34.18], [125.03, -34.53], [124.5, -34.75], [124.25, -34.65], [124.18, -34.68], [124.03, -35.03], [123.68, -35.18], [123.53, -35.53], [123.18, -35.68], [123.15, -35.75], [123.25, -36.0], [123.15, -36.25], [123.25, -36.5], [123.03, -37.03], [122.5, -37.25], [122.25, -37.15], [122.0, -37.25], [121.47, -37.03], [121.25, -36.5], [121.35, -36.25], [121.32, -36.18], [120.97, -36.03]]]]}, "2025-04-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.97, -36.03], [120.75, -35.5], [120.97, -34.97], [121.32, -34.82], [121.47, -34.47], [121.82, -34.32], [121.97, -33.97], [122.5, -33.75], [122.75, -33.85], [122.82, -33.82], [122.97, -33.47], [123.5, -33.25], [123.75, -33.35], [123.82, -33.32], [123.97, -32.97], [124.5, -32.75], [124.75, -32.85], [125.0, -32.75], [125.53, -32.97], [125.75, -33.5], [125.53, -34.03], [125.18, -34.18], [125.03, -34.53], [124.5, -34.75], [124.25, -34.65], [124.18, -34.68], [124.03, -35.03], [123.68, -35.18], [123.54, -35.5], [123.75, -36.0], [123.65, -36.25], [123.75, -36.5], [123.53, -37.03], [123.0, -37.25], [122.75, -37.15], [122.5, -37.25], [122.25, -37.15], [122.0, -37.25], [121.47, -37.03], [121.25, -36.5], [121.35, -36.25], [121.32, -36.18], [120.97, -36.03]]]]}, "2025-04-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.97, -36.03], [120.75, -35.5], [120.97, -34.97], [121.32, -34.82], [121.47, -34.47], [121.82, -34.32], [121.97, -33.97], [122.5, -33.75], [122.75, -33.85], [122.82, -33.82], [122.97, -33.47], [123.5, -33.25], [123.75, -33.35], [123.82, -33.32], [123.97, -32.97], [124.5, -32.75], [124.75, -32.85], [125.0, -32.75], [125.53, -32.97], [125.75, -33.5], [125.53, -34.03], [125.18, -34.18], [125.03, -34.53], [124.5, -34.75], [124.25, -34.65], [124.18, -34.68], [124.03, -35.03], [123.68, -35.18], [123.54, -35.5], [123.75, -36.0], [123.65, -36.25], [123.75, -36.5], [123.53, -37.03], [123.0, -37.25], [122.75, -37.15], [122.5, -37.25], [122.25, -37.15], [122.0, -37.25], [121.47, -37.03], [121.25, -36.5], [121.35, -36.25], [121.32, -36.18], [120.97, -36.03]]]]}, "2025-04-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[120.97, -36.03], [120.75, -35.5], [120.97, -34.97], [121.5, -34.75], [122.0, -34.96], [122.5, -34.75], [123.03, -34.97], [123.18, -35.32], [123.53, -35.47], [123.75, -36.0], [123.65, -36.25], [123.75, -36.5], [123.53, -37.03], [123.0, -37.25], [122.75, -37.15], [122.5, -37.25], [122.25, -37.15], [122.0, -37.25], [121.47, -37.03], [121.25, -36.5], [121.35, -36.25], [121.32, -36.18], [120.97, -36.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.643380306147094}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.3480747695924196}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.03182726259587, 21.165280151367256, 19.982928212483728, 18.9753242492676]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.08384730021163, 22.013274129231775, 21.448626454671228, 19.36319249471029]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.0207965193116055, 3.213945833439297, 2.042491115263971, 1.6837323089281782]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.159924047568097, 3.643380306147094, 2.5605079235635912, 1.75772781858376]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5074545489107918, 2.4252712866135733, 1.5981663722036727, 1.3379209551350282]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6536452635369625, 2.831980007263667, 2.0058913460646126, 1.4059551305614457]}}