{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:53:37.329716", "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-May-29_to_2023-May-31_140.0_-37.5"}, "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": 2023050002795}, "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": "May 29 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 31 2023"}, "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": 113801.95651156163}, "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": -37.5}, "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": 140.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "140.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 137.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 143.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -38.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -35.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[136.75, -36.5], [136.97, -35.97], [137.5, -35.75], [137.75, -35.85], [138.0, -35.75], [138.25, -35.85], [138.32, -35.82], [138.47, -35.47], [139.0, -35.25], [139.25, -35.35], [139.5, -35.25], [139.75, -35.35], [139.82, -35.32], [139.85, -35.25], [139.75, -35.0], [139.97, -34.47], [140.5, -34.25], [141.03, -34.47], [141.18, -34.82], [141.25, -34.85], [141.5, -34.75], [141.75, -34.85], [142.0, -34.75], [142.25, -34.85], [142.5, -34.75], [143.03, -34.97], [143.25, -35.5], [143.04, -36.0], [143.25, -36.5], [143.15, -36.75], [143.25, -37.0], [143.15, -37.25], [143.18, -37.32], [143.53, -37.47], [143.75, -38.0], [143.65, -38.25], [143.75, -38.5], [143.53, -39.03], [143.0, -39.25], [142.75, -39.15], [142.5, -39.25], [142.25, -39.15], [142.0, -39.25], [141.75, -39.15], [141.5, -39.25], [140.97, -39.03], [140.82, -38.68], [140.75, -38.65], [140.5, -38.75], [139.97, -38.53], [139.82, -38.18], [139.47, -38.03], [139.32, -37.68], [139.25, -37.65], [139.0, -37.75], [138.47, -37.53], [138.32, -37.18], [138.25, -37.15], [138.0, -37.25], [137.75, -37.15], [137.5, -37.25], [136.97, -37.03], [136.75, -36.5]]]]}}, "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": {"2023-05-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.5, -37.25], [136.97, -37.03], [136.75, -36.5], [136.97, -35.97], [137.5, -35.75], [137.75, -35.85], [138.0, -35.75], [138.25, -35.85], [138.32, -35.82], [138.47, -35.47], [139.0, -35.25], [139.25, -35.35], [139.5, -35.25], [139.75, -35.35], [139.82, -35.32], [139.85, -35.25], [139.75, -35.0], [139.97, -34.47], [140.5, -34.25], [141.03, -34.47], [141.18, -34.82], [141.25, -34.85], [141.5, -34.75], [141.75, -34.85], [142.0, -34.75], [142.25, -34.85], [142.5, -34.75], [143.03, -34.97], [143.25, -35.5], [143.04, -36.0], [143.25, -36.5], [143.15, -36.75], [143.25, -37.0], [143.15, -37.25], [143.18, -37.32], [143.53, -37.47], [143.75, -38.0], [143.65, -38.25], [143.75, -38.5], [143.53, -39.03], [143.0, -39.25], [142.75, -39.15], [142.5, -39.25], [142.25, -39.15], [142.0, -39.25], [141.75, -39.15], [141.5, -39.25], [140.97, -39.03], [140.82, -38.68], [140.75, -38.65], [140.5, -38.75], [139.97, -38.53], [139.82, -38.18], [139.47, -38.03], [139.32, -37.68], [139.25, -37.65], [139.0, -37.75], [138.47, -37.53], [138.32, -37.18], [138.25, -37.15], [138.0, -37.25], [137.75, -37.15], [137.5, -37.25]]]]}, "2023-05-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.5, -37.25], [136.97, -37.03], [136.75, -36.5], [136.97, -35.97], [137.5, -35.75], [137.75, -35.85], [138.0, -35.75], [138.25, -35.85], [138.32, -35.82], [138.47, -35.47], [139.0, -35.25], [139.25, -35.35], [139.5, -35.25], [139.75, -35.35], [139.82, -35.32], [139.85, -35.25], [139.75, -35.0], [139.97, -34.47], [140.5, -34.25], [141.03, -34.47], [141.18, -34.82], [141.25, -34.85], [141.5, -34.75], [141.75, -34.85], [142.0, -34.75], [142.25, -34.85], [142.5, -34.75], 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"Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.2639540467270103}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [14.309444853145862, 14.947092506432853, 15.03832674162453]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.54763303856288, 17.278528039027094, 16.672785212461633]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.678947552581058, 3.469764519185797, 3.643150068414175]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.607663157280001, 4.415226326517086, 4.972271504193429]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4291891382365813, 1.8383586310577207, 1.9207027485627526]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7189721872545225, 2.2219502443978456, 2.2166623400314243]}}