{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:18:20.388586", "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-Sep-03_to_2020-Sep-05_168.5_-48.5"}, "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": 2020090001160}, "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": "September 03 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 05 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": 64166.11873757913}, "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": ["New Zealand"]}, "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": -48.5}, "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": 168.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "168.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 168.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 172.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -51.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -47.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[167.47, -46.97], [168.0, -46.75], [168.25, -46.854], [168.5, -46.75], [168.75, -46.854], [169.0, -46.75], [169.53, -46.97], 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boundary of the event at each time step", "value": {"2020-09-03T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[167.45710678118655, -48.0], [167.25, -47.5], [167.46966991411009, -46.96966991411009], [168.0, -46.75], [168.25, -46.85355339059328], [168.5, -46.75], [168.75, -46.85355339059328], [169.0, -46.75], [169.53033008588991, -46.96966991411009], [169.75, -47.5], [169.64644660940672, -47.75], [169.75, -48.0], [169.64644660940672, -48.25], [169.67677669529664, -48.32322330470336], [169.75, -48.35355339059328], [170.0, -48.25], [170.53033008588991, -48.46966991411009], [170.67677669529664, -48.82322330470336], [170.75, -48.85355339059328], [171.0, -48.75], [171.53033008588991, -48.96966991411009], [171.67677669529664, -49.32322330470336], [172.03033008588991, -49.46966991411009], [172.17677669529664, -49.82322330470336], [172.53033008588991, -49.96966991411009], [172.75, -50.5], [172.64644660940672, -50.75], [172.75, -51.0], [172.53033008588991, -51.53033008588991], [172.0, 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maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.4020768504130956, 2.385512624459068, 2.030848595300995]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2753975628437113, 1.448111952292675, 1.2005037888368297]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.576131535867034, 1.6021361210438765, 1.4455041146665708]}}