{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:52:57.040490", "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": "2023-Apr-24_to_2023-Apr-28_153.0_-42.5"}, "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": 2023040002601}, "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 24 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 28 2023"}, "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": 174186.6215579243}, "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": ["Tasman 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": -42.5}, "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": 153.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "153.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 148.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 155.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -45.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -36.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[149.82, -41.82], [149.97, -41.47], [150.5, -41.25], [150.75, -41.35], [151.0, -41.25], [151.25, -41.35], [151.32, -41.32], [151.47, -40.97], [151.88, -40.8], [151.82, -40.68], [151.47, -40.53], [151.25, -40.0], [151.35, -39.75], [151.25, -39.5], [151.35, -39.25], [151.25, -39.0], [151.35, -38.75], [151.25, -38.5], [151.35, -38.25], [151.32, -38.18], [150.97, -38.03], [150.82, -37.68], [150.47, -37.53], [150.25, -37.0], [150.35, -36.75], [150.25, -36.5], [150.35, -36.25], [150.25, -36.0], [150.47, -35.47], [151.0, -35.25], [151.53, -35.47], [151.75, -36.0], [151.65, -36.25], [151.68, -36.32], [152.03, -36.47], [152.18, -36.82], [152.25, -36.85], [152.5, -36.75], [153.03, -36.97], [153.25, -37.5], [153.15, -37.75], [153.18, -37.82], [153.25, -37.85], [153.5, -37.75], [154.03, -37.97], [154.25, -38.5], [154.15, -38.75], [154.25, -39.0], [154.15, -39.25], [154.18, -39.32], [154.53, -39.47], [154.75, -40.0], [154.65, -40.25], [154.75, -40.5], [154.65, -40.75], [154.75, -41.0], [154.53, -41.53], [154.18, -41.68], [154.15, -41.75], [154.25, -42.0], [154.15, -42.25], [154.25, -42.5], [154.15, -42.75], [154.18, -42.82], [154.53, -42.97], [154.68, -43.32], [155.03, -43.47], [155.18, -43.82], [155.53, -43.97], [155.75, -44.5], [155.65, -44.75], [155.75, -45.0], [155.53, -45.53], [155.0, -45.75], [154.75, -45.65], [154.5, -45.75], [154.25, -45.65], [154.0, -45.75], [153.47, -45.53], [153.32, -45.18], [152.97, -45.03], [152.82, -44.68], [152.47, -44.53], [152.32, -44.18], [151.97, -44.03], [151.75, -43.5], [151.85, -43.25], [151.82, -43.18], [151.5, -43.04], [151.0, -43.25], [150.75, -43.15], [150.5, -43.25], [150.25, -43.15], [150.18, -43.18], [150.03, -43.53], [149.5, -43.75], [149.25, -43.65], [149.0, -43.75], [148.47, -43.53], [148.32, -43.18], [147.97, -43.03], [147.75, -42.5], [147.97, -41.97], [148.32, -41.82], [148.47, -41.47], [149.0, -41.25], [149.53, -41.47], [149.68, -41.82], [149.75, -41.85], [149.82, -41.82]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Australia", "S.Australia", "New-Zealand"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-04-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[148.47, -43.03], [148.25, -42.5], [148.47, -41.97], [149.0, -41.75], [149.25, -41.85], [149.5, -41.75], [149.75, -41.85], [150.0, -41.75], [150.25, -41.85], [150.32, -41.82], [150.47, -41.47], [151.0, -41.25], [151.25, -41.35], [151.32, -41.32], [151.47, -40.97], [151.88, -40.8], [151.75, -40.5], [151.85, -40.25], [151.75, -40.0], [151.97, -39.47], [152.5, -39.25], [152.75, -39.35], [153.0, -39.25], [153.53, -39.47], [153.68, -39.82], [154.03, -39.97], [154.25, -40.5], [154.15, -40.75], [154.25, -41.0], [154.15, -41.25], [154.25, -41.5], [154.15, -41.75], [154.25, -42.0], [154.15, -42.25], [154.25, -42.5], [154.03, -43.03], [153.68, -43.18], [153.53, -43.53], [153.0, -43.75], [152.75, -43.65], [152.5, -43.75], [151.97, -43.53], [151.82, -43.18], [151.5, -43.04], [151.0, -43.25], [150.75, -43.15], [150.5, -43.25], [150.25, -43.15], [150.18, -43.18], [150.03, -43.53], [149.5, -43.75], [148.97, -43.53], [148.82, -43.18], [148.47, -43.03]]]]}, "2023-04-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.97, -43.03], [147.75, -42.5], [147.97, -41.97], [148.32, -41.82], [148.47, -41.47], [149.0, -41.25], [149.53, -41.47], [149.68, -41.82], [149.75, -41.85], [149.82, -41.82], [149.97, -41.47], [150.5, -41.25], [150.75, -41.35], [151.0, -41.25], [151.25, -41.35], [151.32, -41.32], [151.47, -40.97], [151.88, -40.8], [151.82, -40.68], [151.47, -40.53], [151.25, -40.0], [151.35, -39.75], [151.25, -39.5], [151.35, -39.25], [151.25, -39.0], [151.35, -38.75], [151.25, -38.5], [151.35, -38.25], [151.25, -38.0], [151.35, -37.75], [151.25, -37.5], [151.47, -36.97], [152.0, -36.75], [152.25, -36.85], [152.5, -36.75], [153.03, -36.97], [153.25, -37.5], [153.15, -37.75], [153.18, -37.82], [153.25, -37.85], [153.5, -37.75], [154.03, -37.97], [154.25, -38.5], [154.15, -38.75], [154.25, -39.0], [154.15, -39.25], [154.18, -39.32], [154.53, -39.47], [154.75, -40.0], [154.65, -40.25], [154.75, -40.5], [154.53, -41.03], [154.18, -41.18], [154.15, -41.25], [154.25, -41.5], [154.15, -41.75], [154.25, -42.0], [154.15, -42.25], [154.25, -42.5], [154.03, -43.03], [153.68, -43.18], [153.53, -43.53], [153.0, -43.75], [152.75, -43.65], [152.5, -43.75], [151.97, -43.53], [151.82, -43.18], [151.5, -43.04], [151.0, -43.25], [150.75, -43.15], [150.5, -43.25], [150.25, -43.15], [150.18, -43.18], [150.03, -43.53], [149.5, -43.75], [149.25, -43.65], [149.0, -43.75], [148.47, -43.53], [148.32, -43.18], [147.97, -43.03]]]]}, "2023-04-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.97, -43.03], [147.75, -42.5], [147.97, -41.97], [148.32, -41.82], [148.47, -41.47], [149.0, -41.25], [149.53, -41.47], [149.68, -41.82], [149.75, -41.85], [149.82, -41.82], [149.97, -41.47], [150.5, -41.25], [150.75, -41.35], [151.0, -41.25], [151.25, -41.35], [151.32, -41.32], [151.47, -40.97], [151.88, -40.8], [151.82, -40.68], [151.47, -40.53], [151.25, -40.0], [151.35, -39.75], [151.25, -39.5], [151.35, -39.25], [151.25, -39.0], [151.35, -38.75], [151.25, -38.5], [151.35, -38.25], [151.32, -38.18], [150.97, -38.03], [150.82, -37.68], [150.47, -37.53], [150.25, -37.0], [150.35, -36.75], [150.25, -36.5], [150.35, -36.25], [150.25, -36.0], [150.47, -35.47], [151.0, -35.25], [151.53, -35.47], [151.75, -36.0], [151.65, -36.25], [151.68, -36.32], [152.03, -36.47], [152.18, -36.82], [152.25, -36.85], [152.5, -36.75], [153.03, -36.97], [153.25, -37.5], [153.15, -37.75], [153.18, -37.82], [153.25, -37.85], [153.5, -37.75], [154.03, -37.97], [154.25, -38.5], [154.15, -38.75], [154.25, -39.0], [154.15, -39.25], [154.18, -39.32], [154.53, -39.47], [154.75, -40.0], [154.65, -40.25], [154.75, -40.5], [154.65, -40.75], [154.75, -41.0], [154.53, -41.53], [154.18, -41.68], [154.15, -41.75], [154.25, -42.0], [154.15, -42.25], [154.25, -42.5], [154.15, -42.75], [154.18, -42.82], [154.53, -42.97], [154.68, -43.32], [155.03, -43.47], [155.18, -43.82], [155.53, -43.97], [155.75, -44.5], [155.65, -44.75], [155.75, -45.0], [155.53, -45.53], [155.0, -45.75], [154.75, -45.65], [154.5, -45.75], [154.25, -45.65], [154.0, -45.75], [153.47, -45.53], [153.32, -45.18], [152.97, -45.03], [152.82, -44.68], [152.47, -44.53], [152.32, -44.18], [151.97, -44.03], [151.75, -43.5], [151.85, -43.25], [151.82, -43.18], [151.5, -43.04], [151.0, -43.25], [150.75, -43.15], [150.5, -43.25], [150.25, -43.15], [150.18, -43.18], [150.03, -43.53], [149.5, -43.75], [149.25, -43.65], [149.0, -43.75], [148.47, -43.53], [148.32, -43.18], [147.97, -43.03]]]]}, "2023-04-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.97, -43.03], [147.75, -42.5], [147.97, -41.97], [148.32, -41.82], [148.47, -41.47], [149.0, -41.25], [149.53, -41.47], [149.68, -41.82], [149.75, -41.85], [149.82, -41.82], [149.97, -41.47], [150.5, -41.25], [150.75, -41.35], [151.0, -41.25], [151.25, -41.35], [151.32, -41.32], [151.47, -40.97], [151.88, -40.8], [151.82, -40.68], [151.47, -40.53], [151.25, -40.0], [151.35, -39.75], [151.25, -39.5], [151.35, -39.25], [151.25, -39.0], [151.35, -38.75], [151.25, -38.5], [151.35, -38.25], [151.32, -38.18], [150.97, -38.03], [150.82, -37.68], [150.47, -37.53], [150.25, -37.0], [150.35, -36.75], [150.25, -36.5], [150.35, -36.25], [150.25, -36.0], [150.47, -35.47], [151.0, -35.25], [151.53, -35.47], [151.75, -36.0], [151.65, -36.25], [151.68, -36.32], [152.03, -36.47], [152.18, -36.82], [152.25, -36.85], [152.5, -36.75], [153.03, -36.97], [153.25, -37.5], [153.15, -37.75], [153.18, -37.82], [153.25, -37.85], [153.5, -37.75], [154.03, -37.97], [154.25, -38.5], [154.15, -38.75], [154.25, -39.0], [154.15, -39.25], [154.18, -39.32], [154.53, -39.47], [154.75, -40.0], [154.65, -40.25], [154.75, -40.5], [154.65, -40.75], [154.75, -41.0], [154.53, -41.53], [154.18, -41.68], [154.15, -41.75], [154.25, -42.0], [154.15, -42.25], [154.25, -42.5], [154.15, -42.75], [154.18, -42.82], [154.53, -42.97], [154.68, -43.32], [155.03, -43.47], [155.18, -43.82], [155.53, -43.97], [155.75, -44.5], [155.65, -44.75], [155.75, -45.0], [155.53, -45.53], [155.0, -45.75], [154.75, -45.65], [154.5, -45.75], [154.25, -45.65], [154.0, -45.75], [153.47, -45.53], [153.32, -45.18], [152.97, -45.03], [152.82, -44.68], [152.47, -44.53], [152.32, -44.18], [151.97, -44.03], [151.75, -43.5], [151.85, -43.25], [151.82, -43.18], [151.5, -43.04], [151.0, -43.25], [150.75, -43.15], [150.5, -43.25], [150.25, -43.15], [150.18, -43.18], [150.03, -43.53], [149.5, -43.75], [149.25, -43.65], [149.0, -43.75], [148.47, -43.53], [148.32, -43.18], [147.97, -43.03]]]]}, "2023-04-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[150.25, -36.5], [150.35, -36.25], [150.25, -36.0], [150.47, -35.47], [151.0, -35.25], [151.53, -35.47], [151.75, -36.0], [151.65, -36.25], [151.68, -36.32], [152.03, -36.47], [152.18, -36.82], [152.25, -36.85], [152.5, -36.75], [153.03, -36.97], [153.25, -37.5], [153.15, -37.75], [153.18, -37.82], [153.53, -37.97], [153.75, -38.5], [153.65, -38.75], [153.68, -38.82], [154.03, -38.97], [154.18, -39.32], [154.53, -39.47], [154.75, -40.0], [154.65, -40.25], [154.75, -40.5], [154.65, -40.75], [154.75, -41.0], [154.53, -41.53], [154.18, -41.68], [154.15, -41.75], [154.25, -42.0], [154.15, -42.25], [154.25, -42.5], [154.15, -42.75], [154.18, -42.82], [154.53, -42.97], [154.68, -43.32], [155.03, -43.47], [155.18, -43.82], [155.53, -43.97], [155.75, -44.5], [155.65, -44.75], [155.75, -45.0], [155.53, -45.53], [155.0, -45.75], [154.75, -45.65], [154.5, -45.75], [154.25, -45.65], [154.0, -45.75], [153.47, -45.53], [153.32, -45.18], [152.97, -45.03], [152.82, -44.68], [152.47, -44.53], [152.32, -44.18], [151.97, -44.03], [151.75, -43.5], [151.85, -43.25], [151.75, -43.0], [151.85, -42.75], [151.75, -42.5], [151.85, -42.25], [151.75, -42.0], [151.85, -41.75], [151.75, -41.5], [151.97, -40.97], [152.32, -40.82], [152.47, -40.47], [152.82, -40.32], [152.96, -40.0], [152.82, -39.68], [152.75, -39.65], [152.68, -39.68], [152.53, -40.03], [152.0, -40.25], [151.47, -40.03], [151.25, -39.5], [151.35, -39.25], [151.25, -39.0], [151.35, -38.75], [151.25, -38.5], [151.35, -38.25], [151.32, -38.18], [150.97, -38.03], [150.82, -37.68], [150.47, -37.53], [150.25, -37.0], [150.35, -36.75], [150.25, -36.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.5069307105287635}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.943269849774345}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.71509251012077, 18.375528861615635, 18.247965872999657, 19.0262857630305, 17.70293126403351]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [18.89518169038513, 20.604436548539923, 20.909405190674818, 21.55576764641802, 21.49854915843531]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.6099657436246133, 2.5788875276322383, 2.901141584662355, 3.7118276334914806, 2.419233486338277]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.2728804998826604, 3.0351066526901604, 3.790230956173275, 4.5069307105287635, 3.118908186981457]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5475631355064288, 1.5689421329131397, 1.7768821708495446, 2.2944734604150243, 1.5409559726928013]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9698170156282453, 1.8821643947824334, 2.2969671755777044, 2.808206633331625, 1.9242411921347398]}}