{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:55:45.534461", "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-Oct-17_to_2023-Oct-20_154.5_-10.0"}, "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": 2023100001598}, "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": "October 17 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 20 2023"}, "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": 118674.69606703016}, "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", "Woodlark Basin"]}, "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": -10.0}, "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": 154.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "154.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 154.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 159.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -11.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -8.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[153.85, -8.75], [153.75, -8.5], [153.97, -7.97], [154.5, -7.75], [154.75, -7.85], [155.0, -7.75], [155.25, -7.85], [155.5, -7.75], [156.03, -7.97], [156.18, -8.32], [156.53, -8.47], [156.68, -8.82], [156.75, -8.85], [157.0, -8.75], [157.25, -8.85], [157.5, -8.75], [158.03, -8.97], [158.25, -9.5], [158.15, -9.75], [158.18, -9.82], [158.25, -9.85], [158.5, -9.75], [159.03, -9.97], [159.18, -10.32], [159.53, -10.47], [159.75, -11.0], [159.53, -11.53], [159.18, -11.68], [159.03, -12.03], [158.5, -12.25], [158.25, -12.15], [158.0, -12.25], [157.75, -12.15], [157.5, -12.25], [156.97, -12.03], [156.82, -11.68], [156.75, -11.65], [156.5, -11.75], [156.25, -11.65], [156.0, -11.75], [155.47, -11.53], [155.32, -11.18], [155.25, -11.15], [155.0, -11.25], [154.47, -11.03], [154.32, -10.68], [153.97, -10.53], [153.75, -10.0], [153.85, -9.75], [153.75, -9.5], [153.85, -9.25], [153.75, -9.0], [153.85, -8.75]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia", "N.Australia", "Equatorial.Pacific-Ocean", "S.Pacific-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-10-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[153.75, -9.5], [153.85, -9.25], [153.75, -9.0], [153.85, -8.75], [153.75, -8.5], [153.97, -7.97], [154.5, -7.75], [154.75, -7.85], [155.0, -7.75], [155.25, -7.85], [155.5, -7.75], [156.03, -7.97], [156.18, -8.32], [156.53, -8.47], [156.68, -8.82], [156.75, -8.85], [157.0, -8.75], [157.25, -8.85], [157.5, -8.75], [158.03, -8.97], [158.25, -9.5], [158.15, -9.75], [158.18, -9.82], [158.25, -9.85], [158.5, -9.75], [159.03, -9.97], [159.18, -10.32], [159.53, -10.47], [159.75, -11.0], [159.53, -11.53], [159.18, -11.68], [159.03, -12.03], [158.5, -12.25], [158.25, -12.15], [158.0, -12.25], [157.75, -12.15], [157.5, -12.25], [156.97, -12.03], [156.82, -11.68], [156.75, -11.65], [156.5, -11.75], [156.25, -11.65], [156.0, -11.75], [155.47, -11.53], [155.32, -11.18], [155.25, -11.15], [155.0, -11.25], [154.47, -11.03], [154.32, -10.68], [153.97, -10.53], [153.75, -10.0], [153.85, -9.75], [153.75, -9.5]]]]}, "2023-10-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[153.75, -9.5], [153.85, -9.25], [153.75, -9.0], [153.85, -8.75], [153.75, -8.5], [153.97, -7.97], [154.5, -7.75], [154.75, -7.85], [155.0, -7.75], [155.25, -7.85], [155.5, -7.75], [156.03, -7.97], [156.18, -8.32], [156.53, -8.47], [156.68, -8.82], [156.75, -8.85], [157.0, -8.75], [157.25, -8.85], [157.5, -8.75], [158.03, -8.97], [158.25, -9.5], [158.15, -9.75], [158.18, -9.82], [158.25, -9.85], [158.5, -9.75], [159.03, -9.97], [159.18, -10.32], [159.53, -10.47], [159.75, -11.0], [159.53, -11.53], [159.18, -11.68], [159.03, -12.03], [158.5, -12.25], [158.25, -12.15], [158.0, -12.25], [157.75, -12.15], [157.5, -12.25], [156.97, -12.03], [156.82, -11.68], [156.75, -11.65], [156.5, -11.75], [156.25, -11.65], [156.0, -11.75], [155.47, -11.53], [155.32, -11.18], [155.25, -11.15], [155.0, -11.25], [154.47, -11.03], [154.32, -10.68], [153.97, -10.53], [153.75, -10.0], [153.85, -9.75], [153.75, -9.5]]]]}, "2023-10-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[153.75, -9.5], [153.85, -9.25], [153.75, -9.0], [153.85, -8.75], [153.75, -8.5], [153.97, -7.97], [154.5, -7.75], [154.75, -7.85], [155.0, -7.75], [155.25, -7.85], [155.5, -7.75], [156.03, -7.97], [156.18, -8.32], [156.53, -8.47], [156.68, -8.82], [156.75, -8.85], [157.0, -8.75], [157.25, -8.85], [157.5, -8.75], [158.03, -8.97], [158.25, -9.5], [158.15, -9.75], [158.18, -9.82], [158.25, -9.85], [158.5, -9.75], [159.03, -9.97], [159.18, -10.32], [159.53, -10.47], [159.75, -11.0], [159.53, -11.53], [159.18, -11.68], [159.03, -12.03], [158.5, -12.25], [158.25, -12.15], [158.0, -12.25], [157.75, -12.15], [157.5, -12.25], [156.97, -12.03], [156.82, -11.68], [156.75, -11.65], [156.5, -11.75], [156.25, -11.65], [156.0, -11.75], [155.47, -11.53], [155.32, -11.18], [155.25, -11.15], [155.0, -11.25], [154.47, -11.03], [154.32, -10.68], [153.97, -10.53], [153.75, -10.0], [153.85, -9.75], [153.75, -9.5]]]]}, "2023-10-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[153.75, -9.5], [153.96, -9.0], [153.75, -8.5], [153.97, -7.97], [154.5, -7.75], [155.03, -7.97], [155.25, -8.5], [155.04, -9.0], [155.18, -9.32], [155.25, -9.35], [155.5, -9.25], [156.03, -9.47], [156.25, -10.0], [156.15, -10.25], [156.25, -10.5], [156.03, -11.03], [155.5, -11.25], [155.25, -11.15], [155.0, -11.25], [154.47, -11.03], [154.32, -10.68], [153.97, -10.53], [153.75, -10.0], [153.85, -9.75], [153.75, -9.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.5693511735655647}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.1093093349135197}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.74460198748568, 27.885079284825906, 27.757255988738734, 27.56454391303555]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.074944329563607, 28.222022774630148, 28.1092805168434, 27.82033536942248]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.0946818975350305, 1.206513032160886, 1.0687208035537294, 0.8753777046486074]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.5025677853202524, 1.5693511735655647, 1.4459295320924639, 1.1549215622256384]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8461400003604815, 2.1318945065039308, 1.9604768707969196, 1.6295352057715775]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.5120602123407996, 2.803351235843602, 2.629233989396409, 2.1505985044483267]}}