{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:04:46.666909", "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-14_to_2025-Apr-19_145.0_-13.0"}, "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": 2025040001822}, "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 14 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 19 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 69246.75874722555}, "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": ["Coral Sea"]}, "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": -13.0}, "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": 145.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "145.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 143.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 148.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -13.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -12.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[146.0, -14.25], [145.75, -14.15], [145.5, -14.25], [145.25, -14.15], [145.0, -14.25], [144.75, -14.15], [144.5, -14.25], [144.25, -14.15], [144.0, -14.25], [143.47, -14.03], [143.32, -13.68], [142.97, -13.53], [142.75, -13.0], [142.97, -12.47], [143.32, -12.32], [143.47, -11.97], [144.0, -11.75], [144.25, -11.85], [144.5, -11.75], [144.75, -11.85], [145.0, -11.75], [145.25, -11.85], [145.5, -11.75], [145.75, -11.85], [146.0, -11.75], [146.53, -11.97], [146.68, -12.32], [146.75, -12.35], [147.0, -12.25], [147.25, -12.35], [147.5, -12.25], [148.03, -12.47], [148.18, -12.82], [148.53, -12.97], [148.75, -13.5], [148.53, -14.03], [148.0, -14.25], [147.75, -14.15], [147.5, -14.25], [147.25, -14.15], [147.0, -14.25], [146.75, -14.15], [146.5, -14.25], [146.25, -14.15], [146.0, -14.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Australia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-04-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.25, -13.0], [143.47, -12.47], [144.0, -12.25], [144.25, -12.35], [144.5, -12.25], [144.75, -12.35], [145.0, -12.25], [145.53, -12.47], [145.68, -12.82], [145.75, -12.85], [146.0, -12.75], [146.53, -12.97], [146.75, -13.5], [146.53, -14.03], [146.0, -14.25], [145.75, -14.15], [145.5, -14.25], [145.25, -14.15], [145.0, -14.25], [144.75, -14.15], [144.5, -14.25], [144.25, -14.15], [144.0, -14.25], [143.47, -14.03], [143.25, -13.5], [143.35, -13.25], [143.25, -13.0]]]]}, "2025-04-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.97, -13.53], [142.75, -13.0], [142.97, -12.47], [143.32, -12.32], [143.47, -11.97], [144.0, -11.75], [144.25, -11.85], [144.5, -11.75], [144.75, -11.85], [145.0, -11.75], [145.25, -11.85], [145.5, -11.75], [145.75, -11.85], [146.0, -11.75], [146.53, -11.97], [146.68, -12.32], [146.75, -12.35], [147.0, -12.25], [147.25, -12.35], [147.5, -12.25], [148.03, -12.47], [148.18, -12.82], [148.53, -12.97], [148.75, -13.5], [148.53, -14.03], [148.0, -14.25], [147.75, -14.15], [147.5, -14.25], [147.25, -14.15], [147.0, -14.25], [146.75, -14.15], [146.5, -14.25], [146.25, -14.15], [146.0, -14.25], [145.75, -14.15], [145.5, -14.25], [145.25, -14.15], [145.0, -14.25], [144.75, -14.15], [144.5, -14.25], [144.25, -14.15], [144.0, -14.25], [143.47, -14.03], [143.32, -13.68], [142.97, -13.53]]]]}, "2025-04-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.97, -13.53], [142.75, -13.0], [142.97, -12.47], [143.32, -12.32], [143.47, -11.97], [144.0, -11.75], [144.25, -11.85], [144.5, -11.75], [144.75, -11.85], [145.0, -11.75], [145.25, -11.85], [145.5, -11.75], [145.75, -11.85], [146.0, -11.75], [146.53, -11.97], [146.68, -12.32], [146.75, -12.35], [147.0, -12.25], [147.25, -12.35], [147.5, -12.25], [148.03, -12.47], [148.18, -12.82], [148.53, -12.97], [148.75, -13.5], [148.53, -14.03], [148.0, -14.25], [147.75, -14.15], [147.5, -14.25], [147.25, -14.15], [147.0, -14.25], [146.75, -14.15], 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anomaly recorded over entire duration", "value": 1.394503258266127}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.0963096624293882}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.753291066487634, 27.846922589730525, 27.79523565320011, 27.80170200734898, 27.568735649472217, 27.82338612874355]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.919550832112634, 28.150435384114587, 28.067608133951865, 28.193123118082724, 27.711988067626976, 27.99469146728518]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.022294005416235, 1.1158647503826298, 1.1014578546157465, 1.1360273522945576, 0.9627305297879616, 1.119058099672145]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.2023214054146933, 1.394503258266127, 1.2998059723055917, 1.383566078097374, 1.044279553471199, 1.288323211735701]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7281577901027059, 1.8049207765820976, 1.743004809798523, 1.7481428480350352, 1.5768308061580962, 1.8524295902423682]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.031541522943225, 2.3501737155384963, 2.1416578194100024, 2.0042401427548993, 1.6941195910187445, 2.1294695224836584]}}