{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:52:35.635084", "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": "2023-Apr-02_to_2023-Apr-07_149.5_-11.0"}, "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": 2023040001307}, "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 02 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 07 2023"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 75742.02503935026}, "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": ["Coral Sea", "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": -11.0}, "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": 149.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "149.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 147.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 150.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -12.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -10.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[150.53, -13.03], [150.0, -13.25], [149.75, -13.15], [149.5, -13.25], [149.25, -13.15], [149.0, -13.25], [148.47, -13.03], [148.32, -12.68], [148.25, -12.65], [148.0, -12.75], [147.75, -12.65], [147.5, -12.75], [146.97, -12.53], [146.75, -12.0], [146.97, -11.47], [147.32, -11.32], [147.35, -11.25], [147.25, -11.0], [147.47, -10.47], [147.82, -10.32], [147.97, -9.97], [148.5, -9.75], [148.75, -9.85], [149.0, -9.75], [149.25, -9.85], [149.5, -9.75], [149.75, -9.85], [150.0, -9.75], [150.25, -9.85], [150.5, -9.75], [151.03, -9.97], [151.25, -10.5], [151.15, -10.75], [151.25, -11.0], [151.03, -11.53], [150.68, -11.68], [150.65, -11.75], [150.75, -12.0], [150.65, -12.25], [150.75, -12.5], [150.53, -13.03]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia", "N.Australia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-04-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.97, -11.03], [147.75, -10.5], [147.97, -9.97], [148.5, -9.75], [148.75, -9.85], [149.0, -9.75], [149.53, -9.97], [149.68, -10.32], [150.03, -10.47], [150.25, -11.0], [150.04, -11.5], [150.25, -12.0], [150.03, -12.53], [149.5, -12.75], [149.25, -12.65], [149.0, -12.75], [148.47, -12.53], [148.25, -12.0], [148.46, -11.5], [148.32, -11.18], [147.97, -11.03]]]]}, "2023-04-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.97, -11.03], [147.75, -10.5], [147.97, -9.97], [148.5, -9.75], [148.75, -9.85], [149.0, -9.75], [149.25, -9.85], [149.5, -9.75], [150.03, -9.97], [150.18, -10.32], [150.53, -10.47], [150.75, -11.0], [150.53, -11.53], [150.18, -11.68], [150.15, -11.75], [150.25, -12.0], [150.03, -12.53], [149.5, -12.75], [149.25, -12.65], [149.0, -12.75], [148.47, -12.53], [148.25, -12.0], [148.46, -11.5], [148.32, -11.18], [147.97, -11.03]]]]}, "2023-04-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.35, -11.25], [147.25, -11.0], [147.47, -10.47], [147.82, -10.32], [147.97, -9.97], [148.5, -9.75], [148.75, -9.85], [149.0, -9.75], [149.25, -9.85], [149.5, -9.75], [150.03, -9.97], [150.18, -10.32], [150.53, -10.47], [150.75, -11.0], [150.65, -11.25], [150.75, -11.5], [150.65, -11.75], [150.75, -12.0], [150.53, -12.53], [150.0, -12.75], [149.75, -12.65], [149.68, -12.68], [149.53, -13.03], [149.0, -13.25], [148.47, -13.03], [148.32, -12.68], [148.25, -12.65], [148.0, -12.75], [147.75, -12.65], [147.5, -12.75], [146.97, -12.53], [146.75, -12.0], [146.97, -11.47], [147.32, -11.32], [147.35, -11.25]]]]}, "2023-04-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.35, -11.25], [147.25, -11.0], [147.47, -10.47], [147.82, -10.32], [147.97, -9.97], [148.5, -9.75], [148.75, -9.85], [149.0, -9.75], [149.25, -9.85], [149.5, -9.75], [149.75, -9.85], [150.0, -9.75], [150.25, -9.85], [150.5, -9.75], [151.03, -9.97], [151.25, -10.5], [151.15, -10.75], [151.25, -11.0], [151.03, -11.53], [150.68, -11.68], [150.65, -11.75], [150.75, -12.0], [150.65, -12.25], [150.75, 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-12.75], [146.97, -12.53], [146.75, -12.0], [146.97, -11.47], [147.32, -11.32], [147.35, -11.25]]]]}, "2023-04-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[150.0, -11.75], [150.53, -11.97], [150.75, -12.5], [150.53, -13.03], [150.0, -13.25], [149.75, -13.15], [149.5, -13.25], [148.97, -13.03], [148.75, -12.5], [148.97, -11.97], [149.5, -11.75], [149.75, -11.85], [150.0, -11.75]]], [[[147.97, -9.97], [148.5, -9.75], [148.75, -9.85], [149.0, -9.75], [149.25, -9.85], [149.5, -9.75], [149.75, -9.85], [150.0, -9.75], [150.25, -9.85], [150.5, -9.75], [151.03, -9.97], [151.25, -10.5], [151.15, -10.75], [151.25, -11.0], [151.03, -11.53], [150.5, -11.75], [150.25, -11.65], [150.0, -11.75], [149.75, -11.65], [149.5, -11.75], [149.25, -11.65], [149.0, -11.75], [148.75, -11.65], [148.5, -11.75], [147.97, -11.53], [147.75, -11.0], [147.85, -10.75], [147.75, -10.5], [147.97, -9.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.710216920502262}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.1909632820407134}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.233052133418937, 28.239041067370124, 28.24169635258704, 28.29696675751245, 28.37789847453547, 27.813197959731895]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.564442542985716, 28.973451502831495, 28.710511904704447, 29.017766336952093, 28.87368782468627, 28.437618059312626]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.0599811152813554, 1.0477743221998077, 1.0761094249572096, 1.2773775683379676, 1.3805591003159088, 0.9802481292476415]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.2101623834588509, 1.5570795323519633, 1.3993963917059205, 1.6862949401161131, 1.710216920502262, 1.1748901017904245]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7018018361392224, 1.6712007274352676, 1.8395971471329133, 2.1004343950610496, 2.1849482615512796, 1.4231106269299822]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9095303883484755, 2.1984926288513407, 2.315591434951889, 2.5825326071305645, 2.6406493065576986, 1.670568932882315]}}