{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:25:46.660979", "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": "2022-Dec-31_to_2023-Jan-07_147.0_-7.0"}, "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": 2022120002993}, "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": "December 31 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 07 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 58323.71591080181}, "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": ["Papua New Guinea"]}, "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": ["Solomon Sea"]}, "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": -7.0}, "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": 147.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "147.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 147.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 151.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -7.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -6.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[147.75, -7.65], [147.5, -7.75], [147.25, -7.65], [147.0, -7.75], [146.47, -7.53], [146.25, -7.0], [146.46, -6.5], [146.25, -6.0], [146.47, -5.47], [147.0, -5.25], [147.53, -5.47], [147.68, -5.82], [147.75, -5.85], [148.0, -5.75], [148.25, -5.85], [148.5, -5.75], [148.75, -5.85], [149.0, -5.75], [149.5, -5.96], [150.0, -5.75], [150.25, -5.85], [150.32, -5.82], [150.47, -5.47], [151.0, -5.25], [151.53, -5.47], [151.75, -6.0], [151.65, -6.25], [151.75, -6.5], [151.65, -6.75], [151.75, -7.0], [151.53, -7.53], [151.0, -7.75], [150.75, -7.65], [150.68, -7.68], [150.53, -8.03], [150.0, -8.25], [149.47, -8.03], [149.32, -7.68], [149.25, -7.65], [149.0, -7.75], [148.75, -7.65], [148.5, -7.75], [148.25, -7.65], [148.0, -7.75], [147.75, -7.65]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia", "Equatorial.Pacific-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-12-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.47, 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duration", "value": 1.4250045357356953}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.966625873786098}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.464827554308044, 27.34227108507963, 28.35651417474469, 28.271858503572105, 28.529879637470174, 27.586299009335107, 26.92964005362694, 23.475402980653882]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.100820504963565, 28.671536185919138, 29.12248038985797, 28.931281771839906, 28.989841288444325, 28.95305297862666, 28.704516330853494, 24.96647916295774]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.0553895563698177, 0.9001163836884842, 1.067380929299912, 0.9161609312013894, 0.9797964064744795, 0.9618758906598259, 0.9413895827199844, 0.8090743676892203]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.4250045357356953, 0.9869591362028132, 1.4095010652192173, 1.146924446315552, 1.2638172237337244, 1.1810345043978145, 1.2000180489847025, 0.9013637643950574]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8629701671949945, 1.5620151455235765, 1.8642547134017717, 1.60634899019749, 1.636887584995494, 1.6972536649169505, 1.6878463409385236, 1.602016398156624]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.3045917522880246, 1.619954934944823, 2.3797929663715145, 2.244885685724424, 1.9624985834053128, 2.1780133836069657, 2.3070909536014295, 1.844568182843414]}}