{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:13:46.784441", "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-29_to_2020-May-31_207.5_-22.5"}, "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": 2020050002988}, "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 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 31 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": 57373.58290771583}, "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": ["French Polynesia"]}, "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": ["Pacific Ocean"]}, "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": -22.5}, "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": 207.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "207.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 205.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 210.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -23.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -20.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[-155.03, -19.47], [-154.5, -19.25], [-153.97, -19.47], [-153.823, -19.823], [-153.47, -19.97], [-153.323, -20.323], [-152.97, 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{"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-05-29T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-155.14644660940672, -20.25], [-155.25, -20.0], [-155.03033008588991, -19.46966991411009], [-154.5, -19.25], [-153.96966991411009, -19.46966991411009], [-153.82322330470336, -19.82322330470336], [-153.46966991411009, -19.96966991411009], [-153.32322330470336, -20.32322330470336], [-152.96966991411009, -20.46966991411009], [-152.82322330470336, -20.82322330470336], [-152.46966991411009, -20.96966991411009], [-152.32322330470336, -21.32322330470336], [-152.25, -21.353553390593273], [-152.0, -21.25], [-151.75, -21.353553390593273], [-151.5, -21.25], [-150.96966991411009, -21.46966991411009], [-150.75, -22.0], [-150.85355339059328, -22.25], [-150.82322330470336, -22.32322330470336], [-150.75, -22.353553390593273], [-150.5, -22.25], [-150.25, -22.353553390593273], [-150.0, -22.25], 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mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.2607579359436982, 1.6185840230706503, 1.3367355835234291]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.5715242768702637, 1.9659461840506651, 1.5353125917418993]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3872646558554442, 1.779056496569193, 1.4522064244265203]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6178882196029922, 2.013096805778777, 1.6433664294619255]}}