{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-05-28 16:19:55.483844", "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": "2026-May-06_to_2026-May-17_147.0_-5.0"}, "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": 2026050001083}, "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": "May 06 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 17 2026"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 12}, "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": 89350.82898825528}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Equatorial.Pacific-Ocean", "S.E.Asia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": ["Bismarck 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": -5.0}, "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": 147.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "147.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 141.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 147.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -6.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -3.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-05-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.5, -4.75], [148.03, -4.97], [148.25, -5.5], [148.03, -6.03], [147.5, -6.25], [146.97, -6.03], [146.75, -5.5], [146.97, -4.97], [147.5, -4.75]]]]}, "2026-05-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.25, -5.0], [146.47, -4.47], [147.0, -4.25], [147.53, -4.47], [147.68, -4.82], [148.03, -4.97], [148.25, -5.5], [148.03, -6.03], [147.5, -6.25], [146.97, -6.03], [146.82, -5.68], [146.47, -5.53], [146.25, -5.0]]]]}, "2026-05-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.25, -5.0], [146.47, -4.47], [147.0, -4.25], [147.53, -4.47], [147.68, -4.82], [148.03, -4.97], [148.25, -5.5], [148.03, -6.03], [147.5, -6.25], [146.97, -6.03], [146.82, -5.68], [146.47, -5.53], [146.25, -5.0]]]]}, "2026-05-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[147.0, -4.25], [147.53, -4.47], [147.75, -5.0], [147.53, -5.53], [147.0, -5.75], [146.47, -5.53], [146.25, -5.0], [146.47, -4.47], [147.0, -4.25]]]]}, "2026-05-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.25, -4.0], [145.47, -3.47], [146.0, -3.25], [146.25, -3.35], [146.5, -3.25], [146.75, -3.35], [147.0, -3.25], [147.53, -3.47], [147.68, -3.82], [148.03, -3.97], [148.25, -4.5], [148.15, -4.75], [148.25, -5.0], [148.15, -5.25], [148.25, -5.5], [148.03, -6.03], [147.5, -6.25], [147.25, -6.15], [147.0, -6.25], [146.47, -6.03], [146.32, -5.68], [145.97, -5.53], [145.75, -5.0], [145.85, -4.75], [145.82, -4.68], [145.47, -4.53], [145.25, -4.0]]]]}, "2026-05-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.25, -3.5], [143.47, -2.97], [144.0, -2.75], [144.53, -2.97], [144.68, -3.32], [144.75, -3.35], [145.0, -3.25], [145.5, -3.46], [146.0, -3.25], [146.25, -3.35], [146.5, -3.25], [146.75, -3.35], [147.0, -3.25], [147.53, -3.47], [147.68, -3.82], [148.03, -3.97], [148.25, -4.5], [148.15, -4.75], [148.25, -5.0], [148.15, -5.25], [148.25, -5.5], [148.15, -5.75], [148.25, -6.0], [148.03, -6.53], [147.5, -6.75], [146.97, -6.53], [146.82, -6.18], [146.5, -6.04], [146.0, -6.25], [145.47, -6.03], [145.25, -5.5], [145.35, -5.25], [145.32, -5.18], [144.97, -5.03], [144.82, -4.68], [144.75, -4.65], [144.5, -4.75], [143.97, -4.53], [143.82, -4.18], [143.47, -4.03], [143.25, -3.5]]]]}, "2026-05-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.25, -3.5], [143.47, -2.97], [144.0, -2.75], [144.53, -2.97], [144.68, -3.32], [144.75, -3.35], [145.0, -3.25], [145.5, -3.46], [146.0, -3.25], [146.25, -3.35], [146.5, -3.25], [146.75, -3.35], [147.0, -3.25], [147.53, -3.47], [147.68, -3.82], [148.03, -3.97], [148.25, -4.5], [148.15, -4.75], [148.25, -5.0], [148.15, -5.25], [148.25, -5.5], [148.15, -5.75], [148.25, -6.0], [148.03, -6.53], [147.5, -6.75], [146.97, -6.53], [146.82, -6.18], [146.5, -6.04], [146.0, -6.25], [145.47, -6.03], [145.25, -5.5], [145.35, -5.25], [145.32, -5.18], [144.97, -5.03], [144.82, -4.68], [144.75, -4.65], [144.5, -4.75], [143.97, -4.53], [143.82, -4.18], [143.47, -4.03], [143.25, -3.5]]]]}, "2026-05-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.25, -3.5], [143.47, -2.97], [144.0, -2.75], [144.53, -2.97], [144.68, -3.32], [144.75, -3.35], [145.0, -3.25], [145.53, -3.47], [145.68, -3.82], [146.0, -3.96], [146.5, -3.75], [146.75, -3.85], [147.0, -3.75], [147.53, -3.97], [147.75, -4.5], [147.65, -4.75], [147.75, -5.0], [147.65, -5.25], [147.68, -5.32], [148.03, -5.47], [148.25, -6.0], [148.03, -6.53], [147.5, -6.75], [146.97, -6.53], [146.82, -6.18], [146.5, -6.04], [146.0, -6.25], [145.47, -6.03], [145.25, -5.5], [145.35, -5.25], [145.32, -5.18], [144.97, -5.03], [144.82, -4.68], [144.75, -4.65], [144.5, -4.75], [143.97, -4.53], [143.82, -4.18], [143.47, -4.03], [143.25, -3.5]]]]}, "2026-05-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.5, -4.25], [147.03, -4.47], [147.25, -5.0], [147.03, -5.53], [146.5, -5.75], [145.97, -5.53], [145.75, -5.0], [145.97, -4.47], [146.5, -4.25]]]]}, "2026-05-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.97, -4.53], [140.75, -4.0], [140.97, -3.47], [141.5, -3.25], [141.75, -3.35], [142.0, -3.25], [142.25, -3.35], [142.5, -3.25], [142.75, -3.35], [143.0, -3.25], [143.25, -3.35], [143.32, -3.32], [143.47, -2.97], [144.0, -2.75], [144.53, -2.97], [144.7, -3.37], [145.0, -3.25], [145.53, -3.47], [145.68, -3.82], [146.03, -3.97], [146.18, -4.32], [146.25, -4.35], [146.5, -4.25], [146.75, -4.35], [147.0, -4.25], [147.25, -4.35], [147.5, -4.25], [148.03, -4.47], [148.25, -5.0], [148.03, -5.53], [147.68, -5.68], [147.65, -5.75], [147.75, -6.0], [147.53, -6.53], [147.0, -6.75], [146.47, -6.53], [146.3, -6.13], [146.0, -6.25], [145.47, -6.03], [145.25, -5.5], [145.35, -5.25], [145.32, -5.18], [145.25, -5.15], [145.0, -5.25], [144.75, -5.15], [144.5, -5.25], [144.25, -5.15], [144.0, -5.25], [143.75, -5.15], [143.5, -5.25], [143.25, -5.15], [143.0, -5.25], [142.47, -5.03], [142.32, -4.68], [142.25, -4.65], [142.0, -4.75], [141.75, -4.65], [141.5, -4.75], [140.97, -4.53]]]]}, "2026-05-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.97, -4.53], [140.75, -4.0], [140.97, -3.47], [141.5, -3.25], [141.75, -3.35], [142.0, -3.25], [142.25, -3.35], [142.5, -3.25], [142.75, -3.35], [143.0, -3.25], [143.25, -3.35], [143.32, -3.32], [143.47, -2.97], [144.0, -2.75], [144.53, -2.97], [144.7, -3.37], [145.0, -3.25], [145.53, -3.47], [145.68, -3.82], [146.03, -3.97], [146.18, -4.32], [146.25, -4.35], [146.5, -4.25], [146.75, -4.35], [147.0, -4.25], [147.25, -4.35], [147.5, -4.25], [148.03, -4.47], [148.25, -5.0], [148.03, -5.53], [147.68, -5.68], [147.65, -5.75], [147.75, -6.0], [147.53, -6.53], [147.0, -6.75], [146.47, -6.53], [146.3, -6.13], [146.0, -6.25], [145.47, -6.03], [145.25, -5.5], [145.35, -5.25], [145.32, -5.18], [145.25, -5.15], [145.0, -5.25], [144.75, -5.15], [144.5, -5.25], [144.25, -5.15], [144.0, -5.25], [143.75, -5.15], [143.5, -5.25], [143.25, -5.15], [143.0, -5.25], [142.47, -5.03], [142.32, -4.68], [142.25, -4.65], [142.0, -4.75], [141.75, -4.65], [141.5, -4.75], [140.97, -4.53]]]]}, "2026-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[140.97, -4.53], [140.75, -4.0], [140.97, -3.47], [141.5, -3.25], [141.75, -3.35], [142.0, -3.25], [142.25, -3.35], [142.5, -3.25], [142.75, -3.35], [143.0, -3.25], [143.25, -3.35], [143.32, -3.32], [143.47, -2.97], [144.0, -2.75], [144.53, -2.97], [144.7, -3.37], [145.0, -3.25], [145.53, -3.47], [145.68, -3.82], [146.03, -3.97], [146.18, -4.32], [146.25, -4.35], [146.5, -4.25], [146.75, -4.35], [147.0, -4.25], [147.25, -4.35], [147.5, -4.25], [148.03, -4.47], [148.25, -5.0], [148.03, -5.53], [147.68, -5.68], [147.65, -5.75], [147.75, -6.0], [147.53, -6.53], [147.0, -6.75], [146.47, -6.53], [146.3, -6.13], [146.0, -6.25], [145.47, -6.03], [145.25, -5.5], [145.35, -5.25], [145.32, -5.18], [145.25, -5.15], [145.0, -5.25], [144.75, -5.15], [144.5, -5.25], [144.25, -5.15], [144.0, -5.25], [143.75, -5.15], [143.5, -5.25], [143.25, -5.15], [143.0, -5.25], [142.47, -5.03], [142.32, -4.68], [142.25, -4.65], [142.0, -4.75], [141.75, -4.65], [141.5, -4.75], [140.97, -4.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.669874439573789}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.1297636886525284}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.888823445638025, 28.393560028076195, 28.201178487141988, 28.46442311604818, 28.453809241092642, 28.03101529721863, 28.08064055266209, 27.527460063587625, 28.061997985839866, 27.486547597249398, 27.584326680501363, 27.42082087198895]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.888823445638025, 28.72140019734701, 28.477382914225302, 28.46442311604818, 28.828276570638025, 28.84272410074874, 29.071069335937523, 28.47111536661788, 28.061997985839866, 28.619128163655603, 28.69398651123049, 28.65188369750979]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [0.7864496244900465, 1.1337470875705549, 0.9269049228389292, 1.0085352463668755, 1.1629767201123657, 1.2028777812992548, 1.2389417910397924, 0.951909767184728, 0.9562264947221024, 1.0869224069973058, 1.2147688959287535, 1.0548807987137991]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [0.7864496244900465, 1.30003129284853, 1.0343860993452836, 1.0085352463668755, 1.414920380803892, 1.632295159042087, 1.669874439573789, 1.1643503552031689, 0.9562264947221024, 1.3683691220275023, 1.6001341749195603, 1.5764926632373317]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.374596751767147, 1.827953950190627, 1.487662129664526, 1.4584802207538539, 1.8489736746336185, 2.0392844887270183, 2.095254646030164, 1.6088045000133442, 1.45811840431534, 1.6554654418790027, 1.829995668498863, 1.5958147978706076]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.374596751767147, 1.919255987968756, 1.5124581253105158, 1.4584802207538539, 2.116440535656346, 2.824312176715874, 2.690920479381065, 2.0062474527399927, 1.45811840431534, 2.171883183638502, 2.24576538491132, 2.204577855635229]}}