{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:24:09.693468", "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": "2021-Apr-24_to_2021-Apr-27_139.0_-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": 2021040002713}, "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 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 27 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 52862.845605934825}, "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": 139.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "139.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 137.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 140.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -19.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -17.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[136.47, -16.97], [137.0, -16.75], [137.302, -16.875], [137.47, -16.47], [138.0, -16.25], [138.25, -16.354], [138.5, -16.25], [139.03, -16.47], [139.25, -17.0], [139.146, -17.25], [139.177, -17.323], [139.226, -17.344], [139.25, -17.354], [139.5, -17.25], [139.75, -17.354], [140.0, -17.25], [140.53, -17.47], [140.75, -18.0], [140.53, -18.53], [140.177, -18.677], [140.146, -18.75], [140.25, -19.0], [140.03, -19.53], [139.5, -19.75], [139.25, -19.646], [139.0, -19.75], [138.75, -19.646], [138.5, -19.75], [138.25, -19.646], [138.0, -19.75], [137.47, -19.53], [137.25, -19.0], [137.354, -18.75], [137.323, -18.677], [136.97, -18.53], [136.823, -18.177], [136.47, -18.03], [136.25, -17.5], [136.47, -16.97]]]}}, "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": {"2021-04-24T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[138.25, -18.0], [138.46966991411009, -17.46966991411009], [139.0, -17.25], [139.53033008588991, -17.46966991411009], [139.75, -18.0], [139.53033008588991, -18.53033008588991], [139.0, -18.75], [138.46966991411009, -18.53033008588991], [138.25, -18.0]]]}, "2021-04-25T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[136.82322330470336, -18.17677669529664], [136.46966991411009, -18.03033008588991], [136.25, -17.5], [136.46966991411009, -16.96966991411009], [137.0, -16.75], [137.30177669529664, -16.875], [137.46966991411009, -16.46966991411009], [138.0, -16.25], [138.25, -16.353553390593273], [138.5, -16.25], [139.03033008588991, -16.46966991411009], [139.25, -17.0], [139.14644660940672, -17.25], [139.17677669529664, -17.32322330470336], [139.25, -17.353553390593273], [139.5, -17.25], [139.75, -17.353553390593273], [140.0, -17.25], [140.53033008588991, -17.46966991411009], [140.75, -18.0], [140.53033008588991, -18.53033008588991], [140.17677669529664, -18.67677669529664], [140.14644660940672, -18.75], [140.25, -19.0], [140.03033008588991, -19.53033008588991], [139.5, -19.75], [139.25, -19.646446609406727], [139.0, -19.75], [138.75, -19.646446609406727], [138.5, -19.75], [138.25, -19.646446609406727], [138.0, -19.75], [137.46966991411009, -19.53033008588991], [137.25, -19.0], [137.35355339059328, -18.75], [137.32322330470336, -18.67677669529664], [136.96966991411009, -18.53033008588991], [136.82322330470336, -18.17677669529664]]]}, "2021-04-26T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[136.82322330470336, -18.17677669529664], [136.46966991411009, -18.03033008588991], [136.25, -17.5], [136.46966991411009, -16.96966991411009], [137.0, -16.75], [137.30177669529664, -16.875], [137.46966991411009, -16.46966991411009], [138.0, -16.25], [138.25, -16.353553390593273], [138.5, -16.25], [139.03033008588991, -16.46966991411009], [139.25, -17.0], [139.14644660940672, -17.25], [139.17677669529664, -17.32322330470336], [139.25, -17.353553390593273], [139.5, -17.25], [139.75, -17.353553390593273], [140.0, -17.25], 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amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.3740835744986355}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.960914061594963, 29.398601015351574, 29.725051661559405, 29.09318219146286]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.960914061594963, 30.671256039500918, 30.788453582373165, 30.176490687006037]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.6141653442867323, 3.293349416956564, 3.7279340877619265, 3.1431848982336326]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.6141653442867323, 4.033781260227556, 4.74745944693592, 4.0573591835831735]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4215219470806413, 1.5499277945316101, 1.6671738904111604, 1.3570343119270951]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4215219470806413, 2.003693589607625, 1.937520675258996, 1.6949698450648154]}}