{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:09:02.239528", "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": "2025-Nov-19_to_2025-Nov-23_158.0_-7.5"}, "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": 2025110002029}, "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": "November 19 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 23 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 92025.00271519965}, "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"]}, "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", "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": -7.5}, "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": 158.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "158.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 155.5}, "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": -9.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -5.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[157.0, -5.96], [157.5, -5.75], [157.75, -5.85], [157.82, -5.82], [157.85, -5.75], [157.75, -5.5], [157.85, -5.25], [157.75, -5.0], [157.97, -4.47], [158.5, -4.25], [158.75, -4.35], [159.0, -4.25], [159.53, -4.47], [159.75, -5.0], [159.65, -5.25], [159.75, -5.5], [159.65, -5.75], [159.75, -6.0], [159.53, -6.53], [159.18, -6.68], [159.15, -6.75], [159.25, -7.0], [159.15, -7.25], [159.18, -7.32], [159.53, -7.47], [159.75, -8.0], [159.53, -8.53], [159.18, -8.68], [159.15, -8.75], [159.25, -9.0], [159.03, -9.53], [158.5, -9.75], [157.97, -9.53], [157.82, -9.18], [157.75, -9.15], [157.5, -9.25], [156.97, -9.03], [156.82, -8.68], [156.47, -8.53], [156.25, -8.0], [156.35, -7.75], [156.25, -7.5], [156.35, -7.25], [156.32, -7.18], [156.25, -7.15], [156.0, -7.25], [155.47, -7.03], [155.32, -6.68], [154.97, -6.53], [154.75, -6.0], [154.97, -5.47], [155.5, -5.25], [155.75, -5.35], [156.0, -5.25], [156.53, -5.47], [156.68, -5.82], [156.89, -5.91], [157.0, -5.96]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Equatorial.Pacific-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-11-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[155.97, -7.03], [155.75, -6.5], [155.97, -5.97], [156.5, -5.75], [157.03, -5.97], [157.25, -6.5], [157.13, -6.8], [157.53, -6.97], [157.75, -7.5], [157.53, -8.03], [157.0, -8.25], [156.47, -8.03], [156.25, -7.5], [156.38, -7.2], [155.97, -7.03]]]]}, "2025-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[154.97, -6.53], [154.75, -6.0], [154.97, -5.47], [155.5, -5.25], [155.75, -5.35], [156.0, -5.25], [156.53, -5.47], [156.68, -5.82], [157.0, -5.96], [157.5, -5.75], [157.75, -5.85], [157.82, -5.82], [157.85, -5.75], [157.75, -5.5], [157.85, -5.25], [157.75, -5.0], [157.97, -4.47], [158.5, -4.25], [158.75, -4.35], [159.0, -4.25], [159.53, -4.47], [159.75, -5.0], [159.65, -5.25], [159.75, -5.5], [159.65, -5.75], [159.75, -6.0], [159.53, -6.53], [159.18, -6.68], [159.15, -6.75], [159.25, -7.0], [159.15, -7.25], [159.18, -7.32], [159.53, -7.47], [159.75, -8.0], [159.53, -8.53], [159.18, -8.68], [159.15, -8.75], [159.25, -9.0], [159.03, -9.53], [158.5, -9.75], [157.97, -9.53], [157.82, -9.18], [157.75, -9.15], [157.5, -9.25], [156.97, -9.03], [156.82, -8.68], [156.47, -8.53], [156.25, -8.0], [156.35, -7.75], [156.25, -7.5], [156.35, -7.25], [156.32, -7.18], [156.25, -7.15], [156.0, -7.25], [155.47, -7.03], [155.32, -6.68], [154.97, -6.53]]]]}, "2025-11-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[154.97, -6.53], [154.75, -6.0], [154.97, -5.47], [155.5, -5.25], [155.75, -5.35], [156.0, -5.25], [156.53, -5.47], [156.68, -5.82], [157.0, -5.96], [157.5, -5.75], [157.75, -5.85], [157.82, -5.82], [157.85, -5.75], [157.75, -5.5], [157.85, -5.25], [157.75, -5.0], [157.97, -4.47], [158.5, -4.25], [158.75, -4.35], [159.0, -4.25], [159.53, -4.47], [159.75, -5.0], [159.65, -5.25], [159.75, -5.5], [159.65, -5.75], [159.75, -6.0], [159.53, -6.53], [159.18, -6.68], [159.15, -6.75], [159.25, -7.0], [159.15, -7.25], [159.18, -7.32], [159.53, -7.47], [159.75, -8.0], [159.53, -8.53], [159.18, -8.68], [159.15, -8.75], [159.25, -9.0], [159.03, -9.53], [158.5, -9.75], [157.97, -9.53], [157.82, -9.18], [157.75, -9.15], [157.5, -9.25], [156.97, -9.03], [156.82, -8.68], [156.47, -8.53], [156.25, -8.0], [156.35, -7.75], [156.25, -7.5], [156.35, -7.25], [156.32, -7.18], [156.25, -7.15], [156.0, -7.25], [155.47, -7.03], [155.32, -6.68], [154.97, -6.53]]]]}, "2025-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[154.97, -6.53], [154.75, -6.0], [154.97, -5.47], [155.5, -5.25], [155.75, -5.35], [156.0, -5.25], [156.53, -5.47], [156.75, -6.0], [156.65, -6.25], [156.7, -6.37], [156.82, -6.32], [156.97, -5.97], [157.5, -5.75], [157.75, -5.85], [157.82, -5.82], [157.85, -5.75], [157.75, -5.5], [157.85, -5.25], [157.75, -5.0], [157.97, -4.47], [158.5, -4.25], [158.75, -4.35], [159.0, -4.25], [159.53, -4.47], [159.75, -5.0], [159.65, -5.25], [159.75, -5.5], [159.65, -5.75], [159.75, -6.0], [159.53, -6.53], [159.18, -6.68], [159.15, -6.75], [159.25, -7.0], [159.15, -7.25], [159.18, -7.32], [159.53, -7.47], [159.75, -8.0], [159.53, -8.53], [159.18, -8.68], [159.15, -8.75], [159.25, -9.0], [159.03, -9.53], [158.5, -9.75], [157.97, -9.53], [157.82, -9.18], [157.75, -9.15], [157.5, -9.25], [156.97, -9.03], [156.82, -8.68], [156.47, -8.53], [156.25, -8.0], [156.35, -7.75], [156.25, -7.5], [156.35, -7.25], [156.3, -7.13], [156.0, -7.25], [155.47, -7.03], [155.32, -6.68], [154.97, -6.53]]]]}, "2025-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[154.97, -6.53], [154.75, -6.0], [154.97, -5.47], [155.5, -5.25], [156.03, -5.47], [156.18, -5.82], [156.53, -5.97], [156.75, -6.5], [156.53, -7.03], [156.0, -7.25], [155.47, -7.03], [155.32, -6.68], [154.97, -6.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.975017162633435}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.2057196016861333}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.03670145670577, 28.331805250379773, 28.54865366617838, 28.331200031850585, 27.44901046752932]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.09346415201827, 29.20356903076174, 29.430579121907556, 28.92669830322268, 27.632400767008505]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.8205670722380205, 1.182509303460813, 1.3639239170264887, 1.1241397136265148, 0.7488702512731891]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.8283896836231293, 1.711151917633174, 1.975017162633435, 1.5161176036015718, 0.8003030990497564]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4641287882833982, 2.1074667241050773, 2.4318772363989067, 2.028249631279049, 1.5296833287755875]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.503379876901847, 2.752384092775217, 3.5355188600408893, 2.969621170255387, 1.5937619959646179]}}