{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:33:40.257202", "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-16_to_2022-Dec-21_159.5_-9.5"}, "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": 2022120002086}, "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 16 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 21 2022"}, "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": 54899.801933282295}, "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": ["Solomon Islands"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Equatorial.Pacific-Ocean", "S.Pacific-Ocean"]}, "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", "South 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": -9.5}, "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": 159.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "159.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 156.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 161.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -10.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -7.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-12-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[159.5, -9.25], [160.03, -9.47], [160.25, -10.0], [160.03, -10.53], [159.5, -10.75], [158.97, -10.53], [158.75, -10.0], [158.97, -9.47], [159.5, -9.25]]]]}, "2022-12-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[156.82, -9.32], [156.97, -8.97], [157.5, -8.75], [157.75, -8.85], [157.82, -8.82], [157.97, -8.47], [158.5, -8.25], [158.75, -8.35], [159.0, -8.25], [159.53, -8.47], [159.68, -8.82], [160.03, -8.97], [160.25, -9.5], [160.15, -9.75], [160.25, -10.0], [160.03, -10.53], [159.5, -10.75], [158.97, -10.53], [158.82, -10.18], [158.75, -10.15], [158.68, -10.18], [158.53, -10.53], [158.0, -10.75], [157.5, -10.54], [157.18, -10.68], [157.03, -11.03], [156.5, -11.25], [155.97, -11.03], [155.75, -10.5], [155.97, -9.97], [156.32, -9.82], [156.47, -9.47], [156.82, -9.32]]]]}, "2022-12-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[156.82, -9.32], [156.97, -8.97], [157.5, -8.75], [157.75, -8.85], [157.82, -8.82], [157.97, -8.47], [158.5, -8.25], [158.75, -8.35], [158.82, -8.32], [158.97, -7.97], [159.5, -7.75], [159.75, -7.85], [160.0, -7.75], [160.53, -7.97], [160.68, -8.32], [161.03, -8.47], [161.25, -9.0], [161.15, -9.25], [161.25, -9.5], [161.03, -10.03], [160.5, -10.25], [160.25, -10.15], [160.18, -10.18], [160.03, -10.53], [159.5, -10.75], [158.97, -10.53], [158.82, -10.18], [158.75, -10.15], [158.68, -10.18], [158.53, -10.53], [158.0, -10.75], [157.5, -10.54], [157.18, -10.68], [157.03, -11.03], [156.5, -11.25], [155.97, -11.03], [155.75, -10.5], [155.97, -9.97], [156.32, -9.82], [156.47, -9.47], [156.82, -9.32]]]]}, "2022-12-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[156.82, -9.32], [156.97, -8.97], [157.5, -8.75], [157.75, -8.85], [157.82, -8.82], [157.97, -8.47], [158.38, -8.3], [158.25, -8.0], [158.47, -7.47], [159.0, -7.25], [159.53, -7.47], [159.68, -7.82], [159.75, -7.85], [160.0, -7.75], [160.53, -7.97], [160.68, -8.32], [160.75, -8.35], [161.0, -8.25], [161.53, -8.47], [161.75, -9.0], [161.53, -9.53], [161.18, -9.68], [161.03, -10.03], [160.5, -10.25], [160.25, -10.15], [160.0, -10.25], [159.75, -10.15], [159.5, -10.25], [159.25, -10.15], [159.0, -10.25], [158.75, -10.15], [158.68, -10.18], [158.53, -10.53], [158.0, -10.75], [157.5, -10.54], [157.18, -10.68], [157.03, -11.03], [156.5, -11.25], [155.97, -11.03], [155.75, -10.5], [155.97, -9.97], [156.32, -9.82], [156.47, -9.47], [156.82, -9.32]]]]}, "2022-12-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[158.25, -8.0], [158.47, -7.47], [159.0, -7.25], [159.53, -7.47], [159.68, -7.82], [159.75, -7.85], [160.0, -7.75], [160.53, -7.97], [160.68, -8.32], [160.75, -8.35], [161.0, -8.25], [161.53, -8.47], [161.75, -9.0], [161.53, -9.53], [161.18, -9.68], [161.03, -10.03], [160.5, -10.25], [160.25, -10.15], [160.0, -10.25], [159.75, -10.15], [159.5, -10.25], [158.97, -10.03], [158.75, -9.5], [158.96, -9.0], [158.82, -8.68], [158.47, -8.53], [158.25, -8.0]]]]}, "2022-12-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[158.25, -8.0], [158.47, -7.47], [159.0, -7.25], [159.53, -7.47], [159.68, -7.82], [160.03, -7.97], [160.2, -8.37], [160.5, -8.25], [160.75, -8.35], [161.0, -8.25], [161.53, -8.47], [161.75, -9.0], [161.53, -9.53], [161.18, -9.68], [161.03, -10.03], [160.5, -10.25], [160.25, -10.15], [160.0, -10.25], [159.75, -10.15], [159.5, -10.25], [158.97, -10.03], [158.75, -9.5], [158.96, -9.0], [158.82, -8.68], [158.47, -8.53], [158.25, -8.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.7178196981805627}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 0.9837653794789987}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.32184844109662, 28.361636295412495, 28.365964641188498, 28.123518158094384, 27.491242523947847, 27.29234810285817]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.32184844109662, 28.53889593397861, 29.20621084301615, 28.97299091974247, 28.19738811220708, 28.002510325987146]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.7438200508304931, 0.8911090896073119, 1.1548155944138472, 1.0363137528241415, 0.8700268293709499, 0.7750435412327761]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.7438200508304931, 1.0500003429464755, 1.7178196981805627, 1.4539270181379038, 1.379868213153543, 1.1024146659456164]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.464571170957061, 1.6214205689585552, 2.187148030899561, 1.9856372068866208, 1.7996537918996172, 1.6200252029226327]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.464571170957061, 2.013525617125044, 2.9969417117635713, 2.508341473081163, 2.3941810074845544, 1.9295261655505]}}