{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:57:40.347994", "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": "2024-Feb-20_to_2024-Feb-22_148.0_-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": 2024020001625}, "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 20 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 22 2024"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 69743.08509438953}, "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": -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": 148.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "148.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 147.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 150.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -40.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -37.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[146.82, -38.32], [146.97, -37.97], [147.32, -37.82], [147.47, -37.47], [148.0, -37.25], [148.5, -37.46], [149.0, -37.25], [149.25, -37.35], [149.32, -37.32], [149.47, -36.97], [150.0, -36.75], [150.25, -36.85], [150.5, -36.75], [151.03, -36.97], [151.25, -37.5], [151.03, -38.03], [150.68, -38.18], [150.65, -38.25], [150.75, -38.5], [150.65, -38.75], [150.75, -39.0], [150.53, -39.53], [150.18, -39.68], [150.03, -40.03], [149.68, -40.18], [149.53, -40.53], [149.0, -40.75], [148.75, -40.65], [148.5, -40.75], [148.2, -40.62], [148.03, -41.03], [147.5, -41.25], [146.97, -41.03], [146.75, -40.5], [146.85, -40.25], [146.82, -40.18], [146.47, -40.03], [146.25, -39.5], [146.35, -39.25], [146.25, -39.0], [146.47, -38.47], [146.82, -38.32]]]]}}, "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": {"2024-02-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.25, -39.0], [146.47, -38.47], [146.82, -38.32], [146.97, -37.97], [147.32, -37.82], [147.47, -37.47], [148.0, -37.25], [148.5, -37.46], [149.0, -37.25], [149.25, -37.35], [149.32, -37.32], [149.47, -36.97], [150.0, -36.75], [150.25, -36.85], [150.5, -36.75], [151.03, -36.97], [151.25, -37.5], [151.03, -38.03], [150.68, -38.18], [150.65, -38.25], [150.75, -38.5], [150.65, -38.75], [150.75, -39.0], [150.53, -39.53], [150.18, -39.68], [150.03, -40.03], [149.68, -40.18], [149.53, -40.53], [149.0, -40.75], [148.75, -40.65], [148.5, -40.75], [148.2, -40.62], [148.03, -41.03], [147.5, -41.25], [146.97, -41.03], [146.75, -40.5], [146.85, -40.25], [146.82, -40.18], [146.47, -40.03], [146.25, -39.5], [146.35, -39.25], [146.25, -39.0]]]]}, "2024-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.25, -39.0], [146.47, -38.47], [146.82, -38.32], [146.97, -37.97], [147.32, -37.82], [147.47, -37.47], [148.0, -37.25], [148.5, -37.46], [149.0, -37.25], [149.25, -37.35], [149.32, -37.32], [149.47, -36.97], [150.0, -36.75], [150.25, -36.85], [150.5, -36.75], [151.03, -36.97], [151.25, -37.5], [151.03, -38.03], [150.68, -38.18], [150.65, -38.25], [150.75, -38.5], [150.65, -38.75], [150.75, -39.0], [150.53, -39.53], [150.18, -39.68], [150.03, -40.03], [149.68, -40.18], [149.53, -40.53], [149.0, -40.75], [148.75, -40.65], [148.5, -40.75], [148.2, -40.62], [148.03, -41.03], [147.5, -41.25], [146.97, -41.03], [146.75, -40.5], [146.85, -40.25], [146.82, -40.18], [146.47, -40.03], [146.25, -39.5], [146.35, -39.25], [146.25, -39.0]]]]}, "2024-02-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.25, -39.0], [146.47, -38.47], [146.82, -38.32], [146.97, -37.97], [147.32, -37.82], [147.47, -37.47], [148.0, -37.25], [148.5, -37.46], [149.0, -37.25], [149.25, -37.35], [149.32, -37.32], [149.47, -36.97], [150.0, -36.75], [150.25, -36.85], [150.5, -36.75], [151.03, -36.97], [151.25, -37.5], [151.03, -38.03], [150.68, -38.18], [150.65, -38.25], [150.75, -38.5], [150.65, -38.75], [150.75, -39.0], [150.53, -39.53], [150.18, -39.68], [150.03, -40.03], [149.68, -40.18], [149.53, -40.53], [149.0, -40.75], [148.75, -40.65], [148.5, -40.75], [148.2, -40.62], [148.03, -41.03], [147.5, -41.25], [146.97, -41.03], [146.75, -40.5], [146.85, -40.25], [146.82, -40.18], [146.47, -40.03], [146.25, -39.5], [146.35, -39.25], [146.25, -39.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.559354358154508}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.9541424593917713}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.331782157611542, 21.893390792547052, 21.831421832326214]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.40388112914394, 22.935725259409537, 23.450422158208596]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.6260231673135195, 3.173168054930829, 3.0632361559309653]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.1866833678568582, 3.8065304076595226, 4.559354358154508]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6281655848829801, 1.9314846756112534, 1.8673963850259974]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9056114642023958, 2.2565916648682536, 2.322909932848215]}}