{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:52:11.178850", "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-Mar-30_to_2023-Apr-05_140.5_-15.5"}, "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": 2023030002661}, "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": "March 30 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 05 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 164390.0972979612}, "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": []}, "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": -15.5}, "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": 140.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "140.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 136.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 141.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -17.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -12.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[140.53, -18.03], [140.0, -18.25], [139.47, -18.03], [139.25, -17.5], [139.35, -17.25], [139.25, -17.0], [139.35, -16.75], [139.32, -16.68], [139.25, -16.65], [139.18, -16.68], [139.03, -17.03], [138.5, -17.25], [137.97, -17.03], [137.75, -16.5], [137.96, -16.0], [137.82, -15.68], [137.75, -15.65], [137.5, -15.75], [137.2, -15.63], [137.03, -16.03], [136.5, -16.25], [135.97, -16.03], [135.82, -15.68], [135.47, -15.53], [135.25, -15.0], [135.35, -14.75], [135.25, -14.5], [135.35, -14.25], [135.25, -14.0], [135.35, -13.75], [135.25, -13.5], [135.35, -13.25], [135.25, -13.0], [135.35, -12.75], [135.25, -12.5], [135.35, -12.25], [135.25, -12.0], [135.47, -11.47], [136.0, -11.25], [136.25, -11.35], [136.5, -11.25], [137.03, -11.47], [137.25, -12.0], [137.15, -12.25], [137.18, -12.32], [137.53, -12.47], [137.68, -12.82], [137.75, -12.85], [138.0, -12.75], [138.53, -12.97], [138.68, -13.32], [138.75, -13.35], [139.0, -13.25], [139.25, -13.35], [139.5, -13.25], [140.03, -13.47], [140.18, -13.82], [140.53, -13.97], [140.68, -14.32], [141.03, -14.47], [141.18, -14.82], [141.53, -14.97], [141.75, -15.5], [141.65, -15.75], [141.75, -16.0], [141.65, -16.25], [141.75, -16.5], [141.53, -17.03], [141.18, -17.18], [141.03, -17.53], [140.68, -17.68], [140.53, -18.03]]]]}}, "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": {"2023-03-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[139.25, -17.0], [139.47, -16.47], [139.82, -16.32], [139.97, -15.97], [140.5, -15.75], [141.03, -15.97], [141.25, -16.5], [141.15, -16.75], [141.25, -17.0], [141.03, -17.53], [140.68, -17.68], [140.53, -18.03], [140.0, -18.25], [139.47, -18.03], [139.25, -17.5], [139.35, -17.25], [139.25, -17.0]]]]}, "2023-03-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.47, -15.47], [139.0, -15.25], [139.25, -15.35], [139.5, -15.25], [139.75, -15.35], [139.82, -15.32], [139.97, -14.97], [140.5, -14.75], [140.75, -14.85], [141.0, -14.75], [141.53, -14.97], [141.75, -15.5], [141.65, -15.75], [141.75, -16.0], [141.65, -16.25], [141.75, -16.5], [141.53, -17.03], [141.18, -17.18], [141.03, -17.53], [140.68, -17.68], [140.53, -18.03], [140.0, -18.25], [139.47, -18.03], [139.25, -17.5], [139.35, -17.25], [139.25, -17.0], [139.35, -16.75], [139.32, -16.68], [139.25, -16.65], [139.18, -16.68], [139.03, -17.03], [138.5, -17.25], [137.97, -17.03], [137.75, -16.5], [137.97, -15.97], [138.32, -15.82], [138.47, -15.47]]]]}, "2023-04-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.25, -15.5], [137.03, -16.03], [136.5, -16.25], [135.97, -16.03], [135.75, -15.5], [135.97, -14.97], [136.5, -14.75], [137.03, -14.97], [137.25, -15.5]]], [[[135.25, -12.5], [135.47, -11.97], [136.0, -11.75], [136.25, -11.85], [136.5, -11.75], [137.03, -11.97], [137.25, -12.5], [137.15, -12.75], [137.25, -13.0], [137.07, -13.43], [137.32, -13.32], [137.47, -12.97], [138.0, -12.75], [138.53, -12.97], [138.68, -13.32], [138.75, -13.35], [139.0, -13.25], [139.25, -13.35], [139.5, -13.25], [140.03, -13.47], [140.18, -13.82], [140.53, -13.97], [140.68, -14.32], [141.03, -14.47], [141.18, -14.82], [141.53, -14.97], [141.75, -15.5], [141.65, -15.75], [141.75, -16.0], [141.65, -16.25], [141.75, -16.5], [141.53, -17.03], [141.18, -17.18], [141.03, -17.53], [140.68, -17.68], [140.53, -18.03], [140.0, -18.25], [139.47, -18.03], [139.25, -17.5], [139.35, -17.25], [139.25, -17.0], [139.35, -16.75], [139.32, -16.68], [139.25, -16.65], [139.18, -16.68], [139.03, -17.03], [138.5, -17.25], [137.97, -17.03], [137.75, -16.5], [137.96, -16.0], [137.82, -15.68], [137.47, -15.53], [137.25, -15.0], [137.38, -14.7], [137.0, -14.54], [136.5, -14.75], [135.97, -14.53], [135.75, -14.0], [135.96, -13.5], [135.82, -13.18], [135.47, -13.03], [135.25, -12.5]]]]}, "2023-04-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.25, -14.5], [135.35, -14.25], [135.25, -14.0], [135.35, -13.75], [135.25, -13.5], [135.35, -13.25], [135.25, -13.0], [135.35, -12.75], [135.25, -12.5], [135.35, -12.25], [135.25, -12.0], [135.47, -11.47], [136.0, -11.25], [136.25, -11.35], [136.5, -11.25], [137.03, -11.47], [137.25, -12.0], [137.15, -12.25], [137.18, -12.32], [137.53, -12.47], [137.68, -12.82], [137.75, -12.85], [138.0, -12.75], [138.53, -12.97], [138.68, -13.32], [138.75, -13.35], [139.0, -13.25], [139.25, -13.35], [139.5, -13.25], [140.03, -13.47], [140.18, -13.82], [140.53, -13.97], [140.68, -14.32], [141.03, -14.47], [141.18, -14.82], [141.53, -14.97], [141.75, -15.5], [141.65, -15.75], [141.75, -16.0], [141.65, -16.25], [141.75, -16.5], [141.53, -17.03], [141.0, -17.25], [140.75, -17.15], [140.5, -17.25], [140.25, -17.15], [140.0, -17.25], [139.47, -17.03], [139.32, -16.68], [139.25, -16.65], [139.18, -16.68], [139.03, -17.03], [138.5, -17.25], [137.97, -17.03], [137.75, -16.5], [137.96, -16.0], [137.82, -15.68], [137.75, -15.65], [137.5, -15.75], [137.2, -15.63], [137.03, -16.03], [136.5, -16.25], [135.97, -16.03], [135.82, -15.68], [135.47, -15.53], [135.25, -15.0], [135.35, -14.75], [135.25, -14.5]]]]}, "2023-04-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.25, -14.5], [135.35, -14.25], [135.25, -14.0], [135.35, -13.75], [135.25, -13.5], [135.35, -13.25], [135.25, -13.0], [135.35, -12.75], [135.25, -12.5], [135.35, -12.25], [135.25, -12.0], [135.47, -11.47], [136.0, -11.25], [136.25, -11.35], [136.5, -11.25], [137.03, -11.47], [137.25, -12.0], [137.15, -12.25], [137.18, -12.32], [137.53, -12.47], [137.68, -12.82], [137.75, -12.85], [138.0, -12.75], [138.53, -12.97], [138.68, -13.32], [138.75, -13.35], [139.0, -13.25], [139.25, -13.35], [139.5, -13.25], [140.03, -13.47], [140.18, -13.82], [140.53, -13.97], [140.68, -14.32], [141.03, -14.47], [141.25, -15.0], [141.15, -15.25], [141.25, -15.5], [141.03, -16.03], [140.5, -16.25], [140.25, -16.15], [140.18, -16.18], [140.03, -16.53], [139.5, -16.75], [139.25, -16.65], [139.0, -16.75], [138.47, -16.53], [138.32, -16.18], [137.97, -16.03], [137.82, -15.68], [137.75, -15.65], [137.5, -15.75], [137.2, -15.63], [137.03, -16.03], [136.5, -16.25], [135.97, -16.03], [135.82, -15.68], [135.47, -15.53], [135.25, -15.0], [135.35, -14.75], [135.25, -14.5]]]]}, "2023-04-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.25, -14.5], [135.35, -14.25], [135.25, -14.0], [135.35, -13.75], [135.25, -13.5], [135.35, -13.25], [135.25, -13.0], [135.35, -12.75], [135.25, -12.5], [135.35, -12.25], [135.25, -12.0], [135.47, -11.47], [136.0, -11.25], [136.25, -11.35], [136.5, -11.25], [137.03, -11.47], [137.25, -12.0], [137.15, -12.25], [137.18, -12.32], [137.53, -12.47], [137.68, -12.82], [137.75, -12.85], [138.0, -12.75], [138.53, -12.97], [138.68, -13.32], [138.75, -13.35], [139.0, -13.25], [139.25, -13.35], [139.5, -13.25], [140.03, -13.47], [140.18, -13.82], [140.53, -13.97], [140.68, -14.32], [141.03, -14.47], [141.25, -15.0], [141.15, -15.25], [141.25, -15.5], [141.03, -16.03], [140.5, -16.25], [140.25, -16.15], [140.0, -16.25], [139.75, -16.15], [139.68, -16.18], [139.53, -16.53], [139.0, -16.75], [138.47, -16.53], [138.32, -16.18], [137.97, -16.03], [137.82, -15.68], [137.75, -15.65], [137.5, -15.75], [137.2, -15.63], [137.03, -16.03], [136.5, -16.25], [135.97, -16.03], [135.82, -15.68], [135.47, -15.53], [135.25, -15.0], [135.35, -14.75], [135.25, -14.5]]]]}, "2023-04-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[135.25, -14.5], [135.35, -14.25], [135.25, -14.0], [135.47, -13.47], [136.0, -13.25], [136.53, -13.47], [136.7, -13.87], [137.0, -13.75], [137.53, -13.97], [137.68, -14.32], [137.75, -14.35], [138.0, -14.25], [138.25, -14.35], [138.5, -14.25], [138.75, -14.35], [139.0, -14.25], [139.3, -14.37], [139.47, -13.97], [140.0, -13.75], [140.53, -13.97], [140.68, -14.32], [141.03, -14.47], [141.25, -15.0], [141.03, -15.53], [140.5, -15.75], [140.25, -15.65], [140.0, -15.75], [139.7, -15.63], [139.53, -16.03], [139.0, -16.25], [138.75, -16.15], [138.5, -16.25], [137.97, -16.03], [137.82, -15.68], [137.75, -15.65], [137.5, -15.75], [137.2, -15.63], [137.03, -16.03], [136.5, -16.25], [135.97, -16.03], [135.82, -15.68], [135.47, -15.53], [135.25, -15.0], [135.35, -14.75], [135.25, -14.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.89303401249839}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.2713325925727652}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.75719034603651, 29.618002044269815, 29.50276411086753, 29.6803207513164, 29.32545815279161, 29.247838914006024, 29.337044867880195]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.825001443197095, 30.113202985559667, 30.140236752624048, 30.026463393142876, 29.741403245538038, 29.760131977429353, 29.678580885020892]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.121207362167496, 1.1253729164322164, 1.2508553891209782, 1.5116182521631414, 1.2245195397218074, 1.1709448695712183, 1.0801996952883062]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.1843714863522337, 1.4253498178420614, 1.5649763186968926, 1.7741920466264673, 1.89303401249839, 1.6055238998052914, 1.4232685048238523]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2595778385468206, 1.3790619860200677, 1.5595291862214442, 1.8705192696856487, 1.4845875348459165, 1.4194074606445009, 1.2758653426979454]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2743799580108046, 1.6482192744548416, 2.000091466507279, 2.4788123458026505, 1.897837744305699, 1.692637353229369, 1.4033928936123137]}}