{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:03:32.275562", "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-Feb-01_to_2025-Feb-04_145.5_-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": 2025020000668}, "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": "February 01 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 04 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": 119430.87467522771}, "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": 145.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "145.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 142.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 147.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -38.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -34.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[141.82, -35.82], [141.97, -35.47], [142.5, -35.25], [142.75, -35.35], [143.0, -35.25], [143.25, -35.35], [143.32, -35.32], [143.46, -35.0], [143.25, -34.5], [143.47, -33.97], [144.0, -33.75], [144.25, -33.85], [144.5, -33.75], [144.75, -33.85], [145.0, -33.75], [145.53, -33.97], [145.68, -34.32], [146.03, -34.47], [146.25, -35.0], [146.15, -35.25], [146.2, -35.37], [146.5, -35.25], [146.75, -35.35], [147.0, -35.25], [147.25, -35.35], [147.5, -35.25], [148.03, -35.47], [148.25, -36.0], [148.15, -36.25], [148.25, -36.5], [148.03, -37.03], [147.5, -37.25], [147.25, -37.15], [147.0, -37.25], [146.75, -37.15], [146.63, -37.2], [146.75, -37.5], [146.53, -38.03], [146.18, -38.18], [146.15, -38.25], [146.25, -38.5], [146.03, -39.03], [145.5, -39.25], [144.97, -39.03], [144.75, -38.5], [144.85, -38.25], [144.82, -38.18], [144.75, -38.15], [144.5, -38.25], [144.25, -38.15], [144.0, -38.25], [143.75, -38.15], [143.5, -38.25], [143.25, -38.15], [143.0, -38.25], [142.47, -38.03], [142.32, -37.68], [141.97, -37.53], [141.82, -37.18], [141.47, -37.03], [141.25, -36.5], [141.47, -35.97], [141.82, -35.82]]]]}}, "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": {"2025-02-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[141.47, -37.03], [141.25, -36.5], [141.47, -35.97], [141.82, -35.82], [141.97, -35.47], [142.5, -35.25], [142.75, -35.35], [143.0, -35.25], [143.25, -35.35], [143.32, -35.32], [143.46, -35.0], [143.25, -34.5], [143.47, -33.97], [144.0, -33.75], [144.25, -33.85], [144.5, -33.75], [144.75, -33.85], [145.0, -33.75], [145.53, -33.97], [145.68, -34.32], [146.03, -34.47], [146.25, -35.0], [146.15, -35.25], [146.25, -35.5], [146.15, -35.75], [146.18, -35.82], [146.25, -35.85], [146.5, -35.75], [147.0, -35.96], [147.5, -35.75], [148.03, -35.97], [148.25, -36.5], [148.03, -37.03], [147.5, -37.25], [147.0, -37.04], [146.63, -37.2], [146.75, -37.5], [146.53, -38.03], 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[148.03, -36.53], [147.68, -36.68], [147.53, -37.03], [147.0, -37.25], [146.75, -37.15], [146.5, -37.25], [145.97, -37.03], [145.75, -36.5], [145.85, -36.25], [145.75, -36.0], [145.97, -35.47]]], [[[145.0, -35.25], [144.47, -35.03], [144.25, -34.5], [144.47, -33.97], [145.0, -33.75], [145.53, -33.97], [145.75, -34.5], [145.53, -35.03], [145.0, -35.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.276943686407492}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.972012614174726}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.5266153971354, 29.535316297743066, 29.442035505506738, 28.731418863932277]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [33.58089599609377, 32.35878397623702, 32.800542449951195, 32.12196248372396]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.144372098158367, 7.049516504281656, 6.943210315815072, 5.318430330983166]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.244519837428015, 8.980645145264873, 9.276943686407492, 5.937498030153904]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5600126919331105, 1.5914813328455544, 1.5568496895560706, 1.3029715816689678]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7446378413123635, 2.412401873863103, 2.4556541377822043, 1.4484758206784658]}}