{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:17:14.106706", "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-Jan-22_to_2022-Jan-26_157.0_-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": 2022010002476}, "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": "January 22 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 26 2022"}, "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": 67496.3892032409}, "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": 157.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "157.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 156.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 159.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -8.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -5.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[156.97, -8.53], [156.82, -8.18], [156.47, -8.03], [156.25, -7.5], [156.38, -7.2], [155.97, -7.03], [155.75, -6.5], [155.85, -6.25], [155.75, -6.0], [155.85, -5.75], [155.75, -5.5], [155.97, -4.97], [156.5, -4.75], [156.75, -4.85], [157.0, -4.75], [157.53, -4.97], [157.68, -5.32], [158.03, -5.47], [158.18, -5.82], [158.53, -5.97], [158.68, -6.32], [158.75, -6.35], [159.0, -6.25], [159.53, -6.47], [159.68, -6.82], [160.03, -6.97], [160.25, -7.5], [160.04, -8.0], [160.25, -8.5], [160.03, -9.03], [159.5, -9.25], [158.97, -9.03], [158.82, -8.68], [158.75, -8.65], [158.5, -8.75], [158.0, -8.54], [157.5, -8.75], [156.97, -8.53]]]]}}, "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": {"2022-01-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[155.75, -6.0], [155.85, -5.75], [155.75, -5.5], [155.97, -4.97], [156.5, -4.75], [156.75, -4.85], [157.0, -4.75], [157.53, -4.97], [157.68, -5.32], [158.03, -5.47], [158.18, -5.82], [158.53, -5.97], [158.68, -6.32], [158.75, -6.35], [159.0, -6.25], [159.53, -6.47], [159.68, -6.82], [160.03, -6.97], [160.25, -7.5], [160.04, -8.0], [160.25, -8.5], [160.03, -9.03], [159.5, -9.25], [158.97, -9.03], [158.82, -8.68], [158.75, -8.65], [158.5, -8.75], [157.97, -8.53], [157.82, -8.18], [157.5, -8.04], [157.0, -8.25], [156.47, -8.03], [156.25, -7.5], [156.38, -7.2], [155.97, -7.03], [155.75, -6.5], [155.85, -6.25], [155.75, -6.0]]]]}, "2022-01-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[155.75, -6.0], [155.85, -5.75], [155.75, -5.5], [155.97, -4.97], [156.5, -4.75], [156.75, -4.85], [157.0, -4.75], [157.53, -4.97], [157.68, -5.32], [158.03, -5.47], [158.18, -5.82], [158.53, -5.97], [158.68, -6.32], [158.75, -6.35], [159.0, -6.25], [159.53, -6.47], [159.68, -6.82], [160.03, -6.97], [160.25, -7.5], [160.04, -8.0], [160.25, -8.5], [160.03, -9.03], [159.5, -9.25], [158.97, -9.03], [158.82, -8.68], [158.75, -8.65], [158.5, -8.75], [157.97, -8.53], [157.82, -8.18], [157.5, -8.04], [157.0, -8.25], [156.47, -8.03], [156.25, -7.5], [156.38, -7.2], [155.97, -7.03], [155.75, -6.5], [155.85, -6.25], [155.75, -6.0]]]]}, "2022-01-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[155.75, -6.0], [155.85, -5.75], [155.75, -5.5], [155.97, -4.97], [156.5, -4.75], [156.75, -4.85], [157.0, -4.75], [157.53, -4.97], [157.68, -5.32], [158.03, -5.47], [158.18, -5.82], [158.53, -5.97], [158.68, -6.32], [158.75, -6.35], [159.0, -6.25], [159.53, -6.47], [159.68, -6.82], [160.03, -6.97], [160.25, -7.5], [160.04, -8.0], [160.25, -8.5], [160.03, -9.03], [159.5, -9.25], [158.97, -9.03], [158.82, -8.68], [158.75, -8.65], [158.5, -8.75], [158.0, -8.54], [157.5, -8.75], [156.97, -8.53], [156.82, -8.18], [156.47, -8.03], [156.25, -7.5], [156.38, -7.2], [155.97, -7.03], [155.75, -6.5], [155.85, -6.25], [155.75, -6.0]]]]}, "2022-01-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[156.25, -7.5], [156.47, -6.97], [157.0, -6.75], [157.53, -6.97], [157.68, -7.32], [158.0, -7.46], [158.5, -7.25], [159.03, -7.47], [159.25, -8.0], [159.03, -8.53], [158.5, -8.75], [158.0, -8.54], [157.5, -8.75], [156.97, -8.53], [156.82, -8.18], [156.47, -8.03], [156.25, -7.5]]], [[[155.97, -6.03], [155.75, -5.5], [155.97, -4.97], [156.5, -4.75], [156.75, -4.85], [157.0, -4.75], [157.53, -4.97], [157.75, -5.5], [157.53, -6.03], [157.0, -6.25], [156.75, -6.15], [156.5, -6.25], [155.97, -6.03]]]]}, "2022-01-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[156.97, -7.47], [157.5, -7.25], [158.03, -7.47], [158.25, -8.0], [158.03, -8.53], [157.5, -8.75], [156.97, -8.53], [156.75, -8.0], [156.97, -7.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.8484270342232776}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.1100956416121375}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.57383548091991, 28.397795653783987, 28.43812151003766, 28.131943473540275, 27.176987831544523]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.95083504620169, 28.730476304431306, 29.001723550220618, 28.38103287536927, 27.176987831544523]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.187890270471065, 1.0342031349748622, 1.14715112867367, 0.9687355255997204, 0.9617309396658129]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.4939329395955951, 1.270491370877096, 1.8484270342232776, 1.4108338256709771, 0.9617309396658129]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [2.0837794675787404, 1.8176239708176805, 2.053869970489752, 1.5911147165918318, 1.4005602937773818]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.5193361000028984, 2.2141888478597918, 2.869076704553985, 2.0352449596569504, 1.4005602937773818]}}