{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-05-28 16:19:50.336590", "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": "2026-Apr-29_to_2026-May-04_148.5_-31.5"}, "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": 2026040002879}, "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 29 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 04 2026"}, "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": 160019.9990047377}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Australia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Australia"]}, "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": -31.5}, "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": 148.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "148.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 146.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 151.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -34.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -25.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[148.5, -30.75], [149.03, -30.97], [149.25, -31.5], [149.03, -32.03], [148.5, -32.25], [147.97, -32.03], [147.75, -31.5], [147.97, -30.97], [148.5, -30.75]]]]}, "2026-04-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[148.5, -30.75], [149.03, -30.97], [149.25, -31.5], [149.03, -32.03], [148.5, -32.25], [147.97, -32.03], [147.75, -31.5], [147.97, -30.97], [148.5, -30.75]]]]}, "2026-05-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.97, -32.47], [147.38, -32.3], [147.25, -32.0], [147.47, -31.47], [147.82, -31.32], [147.85, -31.25], [147.75, -31.0], [147.96, -30.5], [147.75, -30.0], [147.97, -29.47], [148.5, -29.25], [148.75, -29.35], [149.0, -29.25], [149.25, -29.35], [149.32, -29.32], [149.47, -28.97], [150.0, -28.75], [150.25, -28.85], [150.5, -28.75], [151.03, -28.97], [151.25, -29.5], [151.04, -30.0], [151.18, -30.32], [151.53, -30.47], [151.75, -31.0], [151.65, -31.25], [151.75, -31.5], [151.53, -32.03], [151.0, -32.25], [150.75, -32.15], [150.5, -32.25], [150.25, -32.15], [150.0, -32.25], [149.57, -32.07], [149.75, -32.5], [149.65, -32.75], [149.75, -33.0], [149.65, -33.25], [149.75, -33.5], [149.65, -33.75], [149.75, -34.0], [149.53, -34.53], [149.0, -34.75], [148.75, -34.65], [148.5, -34.75], [148.25, -34.65], [148.0, -34.75], [147.47, -34.53], [147.32, -34.18], [146.97, -34.03], [146.75, -33.5], [146.85, -33.25], [146.75, -33.0], [146.97, -32.47]]]]}, "2026-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.75, -27.5], [145.97, -26.97], [146.5, -26.75], [146.93, -26.93], [146.82, -26.68], [146.47, -26.53], [146.25, -26.0], [146.47, -25.47], [147.0, -25.25], [147.25, -25.35], [147.5, -25.25], [148.03, -25.47], [148.18, -25.82], [148.53, -25.97], [148.75, -26.5], [148.65, -26.75], [148.75, -27.0], [148.65, -27.25], [148.68, -27.32], [149.03, -27.47], [149.18, -27.82], [149.53, -27.97], [149.68, -28.32], [149.75, -28.35], [150.0, -28.25], [150.25, -28.35], [150.5, -28.25], [151.03, -28.47], [151.25, -29.0], [151.15, -29.25], [151.25, -29.5], [151.04, -30.0], [151.18, -30.32], [151.53, -30.47], [151.75, -31.0], [151.65, -31.25], [151.75, -31.5], [151.53, -32.03], [151.0, -32.25], [150.75, -32.15], [150.5, -32.25], [150.25, -32.15], [150.0, -32.25], [149.57, -32.07], [149.75, -32.5], [149.65, -32.75], [149.75, -33.0], [149.65, -33.25], [149.75, -33.5], [149.65, -33.75], [149.75, -34.0], [149.53, -34.53], [149.0, -34.75], [148.75, -34.65], [148.5, -34.75], [148.25, -34.65], [148.0, -34.75], [147.47, -34.53], [147.32, -34.18], [146.97, -34.03], [146.75, -33.5], [146.85, -33.25], [146.75, -33.0], [146.97, -32.47], [147.38, -32.3], [147.25, -32.0], [147.47, -31.47], [147.82, -31.32], [147.85, -31.25], [147.75, -31.0], [147.96, -30.5], [147.82, -30.18], [147.75, -30.15], [147.5, -30.25], [146.97, -30.03], [146.75, -29.5], [146.85, -29.25], [146.82, -29.18], [146.47, -29.03], [146.25, -28.5], [146.35, -28.25], [146.32, -28.18], [145.97, -28.03], [145.75, -27.5]], [[147.35, -27.25], [147.32, -27.18], [147.07, -27.07], [147.18, -27.32], [147.3, -27.37], [147.35, -27.25]]]]}, "2026-05-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.75, -27.5], [145.97, -26.97], [146.5, -26.75], [146.93, -26.93], [146.82, -26.68], [146.47, -26.53], [146.25, -26.0], [146.47, -25.47], [147.0, -25.25], [147.25, -25.35], [147.5, -25.25], [148.03, -25.47], [148.18, -25.82], [148.53, -25.97], [148.75, -26.5], [148.65, -26.75], [148.75, -27.0], [148.65, -27.25], [148.68, -27.32], [149.03, -27.47], [149.18, -27.82], [149.53, -27.97], [149.68, -28.32], [149.75, -28.35], [150.0, -28.25], [150.25, -28.35], [150.5, -28.25], [151.03, -28.47], [151.25, -29.0], [151.15, -29.25], [151.25, -29.5], [151.04, -30.0], [151.18, -30.32], [151.53, -30.47], [151.75, -31.0], [151.65, -31.25], [151.75, -31.5], [151.53, -32.03], [151.0, -32.25], [150.75, -32.15], [150.5, -32.25], [150.25, -32.15], [150.0, -32.25], [149.57, -32.07], [149.75, -32.5], [149.65, -32.75], [149.75, -33.0], [149.65, -33.25], [149.75, -33.5], [149.65, -33.75], [149.75, -34.0], [149.53, -34.53], [149.0, -34.75], [148.75, -34.65], [148.5, -34.75], [148.25, -34.65], [148.0, -34.75], [147.47, -34.53], [147.32, -34.18], [146.97, -34.03], [146.75, -33.5], [146.85, -33.25], [146.75, -33.0], [146.97, -32.47], [147.38, -32.3], [147.25, -32.0], [147.47, -31.47], [147.82, -31.32], [147.85, -31.25], [147.75, -31.0], [147.96, -30.5], [147.82, -30.18], [147.75, -30.15], [147.5, -30.25], [146.97, -30.03], [146.75, -29.5], [146.85, -29.25], [146.82, -29.18], [146.47, -29.03], [146.25, -28.5], [146.35, -28.25], [146.32, -28.18], [145.97, -28.03], [145.75, -27.5]], [[147.35, -27.25], [147.32, -27.18], [147.07, -27.07], [147.18, -27.32], [147.3, -27.37], [147.35, -27.25]]]]}, "2026-05-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.75, -27.5], [145.97, -26.97], [146.5, -26.75], [146.93, -26.93], [146.82, -26.68], [146.47, -26.53], [146.25, -26.0], [146.47, -25.47], [147.0, -25.25], [147.25, -25.35], [147.5, -25.25], [148.03, -25.47], [148.18, -25.82], [148.53, -25.97], [148.75, -26.5], [148.65, -26.75], [148.75, -27.0], [148.65, -27.25], [148.68, -27.32], [149.03, -27.47], [149.18, -27.82], [149.53, -27.97], [149.68, -28.32], [149.75, -28.35], [150.0, -28.25], [150.25, -28.35], [150.5, -28.25], [151.03, -28.47], [151.25, -29.0], [151.15, -29.25], [151.25, -29.5], [151.04, -30.0], [151.18, -30.32], [151.53, -30.47], [151.75, -31.0], [151.65, -31.25], [151.75, -31.5], [151.53, -32.03], [151.0, -32.25], [150.75, -32.15], [150.5, -32.25], [149.97, -32.03], [149.75, -31.5], [149.85, -31.25], [149.82, -31.18], [149.47, -31.03], [149.32, -30.68], [149.25, -30.65], [149.0, -30.75], [148.75, -30.65], [148.5, -30.75], [147.97, -30.53], [147.82, -30.18], [147.75, -30.15], [147.5, -30.25], [146.97, -30.03], [146.75, -29.5], [146.85, -29.25], [146.82, -29.18], [146.47, -29.03], [146.25, -28.5], [146.35, -28.25], [146.32, -28.18], [145.97, -28.03], [145.75, -27.5]], [[147.35, -27.25], [147.32, -27.18], [147.07, -27.07], [147.18, -27.32], [147.3, -27.37], [147.35, -27.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.728713445719791}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.520103692079411}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.942183430989587, 20.127163187662802, 18.864259810674753, 21.144849395751976, 20.50756971571178, 20.463420950399836]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.942183430989587, 20.127163187662802, 21.24473088582357, 23.59404780069991, 23.54803873697921, 21.681885019938193]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.449647441218076, 3.646073339417967, 3.7239354840766867, 5.1225781346722945, 4.778970037282132, 3.929020627643802]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.449647441218076, 3.646073339417967, 4.423288545108903, 6.728713445719791, 5.9741702279991955, 4.970605611935753]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2456075692636932, 1.3061188096602798, 1.3862630839523518, 1.86087931221116, 1.7587427205382515, 1.471576930668572]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2456075692636932, 1.3061188096602798, 1.6638368593539419, 2.3912712620628325, 2.2128369973684343, 1.944421506838861]}}