{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:13:36.185500", "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": "2020-May-18_to_2020-May-20_140.5_-18.0"}, "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": 2020050002212}, "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 18 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 20 2020"}, "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": 50307.86947084562}, "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": -18.0}, "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": 140.0}, "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": -18.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -15.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[139.47, -18.53], [139.25, -18.0], [139.47, -17.47], [140.0, -17.25], [140.25, -17.354], [140.323, -17.323], [140.47, -16.97], [140.823, -16.823], [140.854, -16.75], [140.75, -16.5], [140.854, -16.25], [140.75, -16.0], [140.854, -15.75], [140.75, -15.5], [140.97, -14.97], [141.5, -14.75], [141.75, -14.854], [142.0, -14.75], [142.25, -14.854], [142.5, -14.75], [143.03, -14.97], [143.177, -15.323], [143.53, -15.47], [143.75, -16.0], [143.53, -16.53], [143.0, -16.75], [142.75, -16.646], [142.677, -16.677], [142.646, -16.75], [142.75, -17.0], [142.543, -17.5], [142.75, -18.0], [142.53, -18.53], [142.0, -18.75], [141.75, -18.646], [141.5, -18.75], [141.25, -18.646], [141.0, -18.75], [140.75, -18.646], [140.5, -18.75], [140.25, -18.646], [140.0, -18.75], [139.47, -18.53]]]}}, "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": {"2020-05-18T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[140.25, 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[142.53033008588991, -18.53033008588991], [142.0, -18.75], [141.75, -18.646446609406727], [141.5, -18.75], [141.25, -18.646446609406727], [141.0, -18.75], [140.75, -18.646446609406727], [140.5, -18.75], [140.25, -18.646446609406727]]]}, "2020-05-19T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[140.25, -18.646446609406727], [140.0, -18.75], [139.46966991411009, -18.53033008588991], [139.25, -18.0], [139.46966991411009, -17.46966991411009], [140.0, -17.25], [140.25, -17.353553390593273], [140.32322330470336, -17.32322330470336], [140.46966991411009, -16.96966991411009], [140.82322330470336, -16.82322330470336], [140.85355339059328, -16.75], [140.75, -16.5], [140.85355339059328, -16.25], [140.75, -16.0], [140.85355339059328, -15.75], [140.75, -15.5], [140.96966991411009, -14.969669914110089], [141.5, -14.75], [141.75, -14.853553390593273], [142.0, -14.75], [142.25, -14.853553390593273], [142.5, -14.75], [143.03033008588991, -14.969669914110089], [143.17677669529664, 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4.509557532519636}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.415120640802201}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.021731479385664, 28.73564355141133, 28.859816586590057]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.692223508333086, 29.137612773122328, 29.687735049561525]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.7513282861465984, 3.6082570468517208, 3.8857765894082843]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.1518257662793303, 4.459334845686271, 4.509557532519636]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2621998107812675, 1.6052558456358583, 1.6733673921906815]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.372022484807766, 1.8010441310783, 1.8957400317160655]}}