{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:07:55.165800", "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-Sep-08_to_2025-Sep-12_125.5_-15.0"}, "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": 2025090001472}, "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 08 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 12 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 65634.37822487169}, "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": -15.0}, "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": 125.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "125.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 122.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 126.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -16.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -14.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[121.47, -13.97], [122.0, -13.75], [122.25, -13.85], [122.5, -13.75], [122.75, -13.85], [123.0, -13.75], [123.5, -13.96], [124.0, -13.75], [124.25, -13.85], [124.5, -13.75], [125.0, -13.96], [125.5, -13.75], [126.03, -13.97], [126.18, -14.32], [126.53, -14.47], [126.75, -15.0], [126.53, -15.53], [126.18, -15.68], [126.15, -15.75], [126.25, -16.0], [126.15, -16.25], [126.25, -16.5], [126.03, -17.03], [125.5, -17.25], [124.97, -17.03], [124.8, -16.62], [124.5, -16.75], [123.97, -16.53], [123.82, -16.18], [123.75, -16.15], [123.5, -16.25], [123.25, -16.15], [123.0, -16.25], [122.47, -16.03], [122.25, -15.5], [122.35, -15.25], [122.32, -15.18], [122.25, -15.15], [122.0, -15.25], [121.47, -15.03], [121.25, -14.5], [121.47, -13.97]]]]}}, "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": {"2025-09-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[124.85, -14.75], [124.75, -14.5], [124.97, -13.97], [125.5, -13.75], [126.03, -13.97], [126.25, -14.5], [126.15, -14.75], [126.25, -15.0], [126.15, -15.25], [126.25, -15.5], [126.03, -16.03], [125.5, -16.25], [125.25, -16.15], [125.0, -16.25], [124.47, -16.03], [124.25, -15.5], [124.47, -14.97], [124.82, -14.82], [124.85, -14.75]]]]}, "2025-09-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[124.5, -16.25], [123.97, -16.03], [123.75, -15.5], [123.97, -14.97], [124.5, -14.75], [124.75, -14.85], [124.82, -14.82], [124.85, -14.75], [124.75, -14.5], [124.97, -13.97], [125.5, -13.75], [126.03, -13.97], [126.18, -14.32], [126.53, -14.47], [126.75, -15.0], [126.53, -15.53], [126.18, -15.68], [126.15, -15.75], [126.25, -16.0], [126.15, -16.25], [126.25, -16.5], [126.03, -17.03], [125.5, -17.25], [124.97, -17.03], [124.75, -16.5], [124.85, -16.25], [124.82, -16.18], [124.75, -16.15], [124.5, -16.25]]]]}, "2025-09-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[122.0, -15.25], [121.47, -15.03], [121.25, -14.5], [121.47, -13.97], [122.0, -13.75], [122.25, -13.85], [122.5, -13.75], [122.75, -13.85], [123.0, -13.75], [123.5, -13.96], [124.0, -13.75], [124.25, -13.85], [124.5, -13.75], [125.0, -13.96], [125.5, -13.75], [126.03, -13.97], [126.18, -14.32], [126.53, -14.47], [126.75, -15.0], [126.53, -15.53], [126.18, -15.68], [126.15, -15.75], [126.25, -16.0], [126.15, -16.25], [126.25, -16.5], [126.03, -17.03], [125.5, -17.25], [124.97, -17.03], [124.8, -16.62], [124.5, -16.75], [123.97, -16.53], [123.82, -16.18], [123.75, -16.15], [123.5, -16.25], [123.25, -16.15], [123.0, -16.25], [122.47, -16.03], [122.25, -15.5], [122.35, -15.25], [122.32, -15.18], [122.25, -15.15], [122.0, -15.25]]]]}, "2025-09-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[122.0, -15.25], [121.47, -15.03], [121.25, -14.5], [121.47, -13.97], [122.0, -13.75], [122.25, -13.85], [122.5, -13.75], [122.75, -13.85], [123.0, -13.75], [123.5, -13.96], [124.0, -13.75], [124.25, -13.85], [124.5, -13.75], [125.0, -13.96], [125.5, -13.75], [126.03, -13.97], [126.18, -14.32], [126.53, -14.47], [126.75, -15.0], [126.53, -15.53], [126.18, -15.68], [126.15, -15.75], [126.25, -16.0], [126.15, -16.25], [126.25, -16.5], [126.03, -17.03], [125.5, -17.25], [124.97, -17.03], [124.8, -16.62], [124.5, -16.75], [123.97, -16.53], [123.82, -16.18], [123.75, -16.15], [123.5, -16.25], [123.25, -16.15], [123.0, -16.25], [122.47, -16.03], [122.25, -15.5], [122.35, -15.25], [122.32, -15.18], [122.25, -15.15], [122.0, -15.25]]]]}, "2025-09-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[122.0, -15.25], [121.47, -15.03], [121.25, -14.5], [121.47, -13.97], [122.0, -13.75], [122.25, -13.85], [122.5, -13.75], [122.75, -13.85], [123.0, -13.75], [123.5, -13.96], [124.0, -13.75], [124.25, -13.85], [124.5, -13.75], [125.0, -13.96], [125.5, -13.75], [126.03, -13.97], [126.25, -14.5], [126.15, -14.75], [126.25, -15.0], [126.03, -15.53], [125.5, -15.75], [125.25, -15.65], [125.18, -15.68], [125.15, -15.75], [125.25, -16.0], [125.03, -16.53], [124.5, -16.75], [123.97, -16.53], [123.82, -16.18], [123.75, -16.15], [123.5, -16.25], [123.25, -16.15], [123.0, -16.25], [122.47, -16.03], [122.25, -15.5], [122.35, -15.25], [122.32, -15.18], [122.25, -15.15], [122.0, -15.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.4575274690993183}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.6179771572163109}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.549124654134175, 27.643624877929653, 27.77632490215882, 27.912418041807257, 27.43695385502832]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.94056345621749, 28.445423380533896, 29.555847422281943, 29.64518763224288, 28.287769571940146]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.6495819973870454, 1.7627889565037052, 1.670158435572246, 1.7855849197383586, 1.2579611187282098]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.0023847069104477, 2.752326562534222, 3.444963992599014, 3.4575274690993183, 2.2434819397554406]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4444808327477425, 1.3790478210201147, 1.661111311835807, 1.8129482135076869, 1.5063965830227268]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5405697493991017, 1.6035197060620747, 2.752997244025899, 3.011463824831652, 1.8968903943379594]}}