{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:15:52.701336", "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": "2021-Nov-22_to_2021-Nov-28_149.5_-1.0"}, "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": 2021110002333}, "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 22 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 28 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": 256409.54454607295}, "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": ["Bismarck Sea", "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": -1.0}, "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": 149.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "149.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 142.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 151.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -3.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 0.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[146.47, -0.97], [147.0, -0.75], [147.25, -0.85], [147.5, -0.75], [147.75, -0.85], [148.0, -0.75], [148.25, -0.85], [148.32, -0.82], [148.35, -0.75], [148.25, -0.5], [148.35, -0.25], [148.32, -0.18], [148.25, -0.15], [148.0, -0.25], [147.47, -0.03], [147.25, 0.5], [147.47, 1.03], [148.0, 1.25], [148.25, 1.15], [148.5, 1.25], [148.75, 1.15], [149.0, 1.25], [149.25, 1.15], [149.5, 1.25], [150.03, 1.03], [150.18, 0.68], [150.25, 0.65], [150.5, 0.75], [151.03, 0.53], [151.25, 0.0], [151.15, -0.25], [151.25, -0.5], [151.15, -0.75], [151.25, -1.0], [151.04, -1.5], [151.25, -2.0], [151.15, -2.25], [151.18, -2.32], [151.53, -2.47], [151.68, -2.82], [152.03, -2.97], [152.25, -3.5], [152.03, -4.03], [151.5, -4.25], [151.25, -4.15], [151.0, -4.25], [150.75, -4.15], [150.5, -4.25], [150.25, -4.15], [150.0, -4.25], [149.75, -4.15], [149.5, -4.25], [149.25, -4.15], [149.0, -4.25], [148.47, -4.03], [148.32, -3.68], [148.25, -3.65], [148.18, -3.68], [148.03, -4.03], [147.5, -4.25], [146.97, -4.03], [146.82, -3.68], [146.75, -3.65], [146.5, -3.75], [145.97, -3.53], [145.75, -3.0], [145.85, -2.75], [145.82, -2.68], [145.75, -2.65], [145.5, -2.75], [145.25, -2.65], [145.0, -2.75], [144.47, -2.53], [144.32, -2.18], [144.25, -2.15], [144.0, -2.25], [143.75, -2.15], [143.5, -2.25], [143.25, -2.15], [143.0, -2.25], [142.47, -2.03], [142.25, -1.5], [142.47, -0.97], [143.0, -0.75], [142.75, -0.65], [142.5, -0.75], [142.25, -0.65], [142.0, -0.75], [141.47, -0.53], [141.25, 0.0], [141.47, 0.53], [142.0, 0.75], [142.25, 0.65], [142.5, 0.75], [142.75, 0.65], [143.0, 0.75], [143.25, 0.65], [143.5, 0.75], [143.75, 0.65], [143.82, 0.68], [143.97, 1.03], [144.5, 1.25], [144.75, 1.15], [145.0, 1.25], [145.53, 1.03], [145.75, 0.5], [145.65, 0.25], [145.68, 0.18], [146.03, 0.03], [146.25, -0.5], [146.15, -0.75], [146.25, -1.0], [146.13, -1.3], [146.25, -1.35], [146.32, -1.32], [146.47, -0.97]], [[143.25, -0.85], [143.32, -0.82], [143.35, -0.75], [143.32, -0.68], [143.25, -0.65], [143.0, -0.75], [143.25, -0.85]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia", "Equatorial.Pacific-Ocean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[148.0, -0.25], [147.47, -0.03], [147.25, 0.5], [147.47, 1.03], [148.0, 1.25], [148.25, 1.15], [148.5, 1.25], [148.75, 1.15], [149.0, 1.25], [149.25, 1.15], [149.5, 1.25], [150.03, 1.03], [150.18, 0.68], [150.25, 0.65], [150.5, 0.75], [151.03, 0.53], [151.25, 0.0], [151.15, -0.25], [151.25, -0.5], [151.15, -0.75], [151.25, -1.0], [151.03, -1.53], [150.5, -1.75], [150.25, -1.65], [150.0, -1.75], [149.75, -1.65], [149.5, -1.75], [148.97, -1.53], [148.82, -1.18], [148.47, -1.03], [148.25, -0.5], [148.35, -0.25], [148.32, -0.18], [148.25, -0.15], [148.0, -0.25]]]]}, "2021-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[148.0, -0.25], [147.47, -0.03], [147.25, 0.5], [147.47, 1.03], [148.0, 1.25], [148.25, 1.15], [148.5, 1.25], [148.75, 1.15], [149.0, 1.25], [149.25, 1.15], [149.5, 1.25], [150.03, 1.03], [150.18, 0.68], [150.25, 0.65], [150.5, 0.75], [151.03, 0.53], [151.25, 0.0], [151.15, -0.25], [151.25, -0.5], [151.15, -0.75], [151.25, -1.0], [151.03, -1.53], [150.5, -1.75], [150.25, -1.65], [150.0, -1.75], [149.75, -1.65], [149.5, -1.75], [148.97, -1.53], [148.82, -1.18], [148.47, -1.03], [148.25, -0.5], [148.35, -0.25], [148.32, -0.18], [148.25, -0.15], [148.0, -0.25]]]]}, "2021-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[146.47, -2.03], [146.25, -1.5], [146.47, -0.97], [147.0, -0.75], [147.25, -0.85], [147.5, -0.75], [147.75, -0.85], [148.0, -0.75], [148.25, -0.85], [148.32, -0.82], [148.35, -0.75], [148.25, -0.5], [148.35, -0.25], [148.32, -0.18], [148.25, -0.15], [148.0, -0.25], [147.47, -0.03], [147.25, 0.5], [147.47, 1.03], [148.0, 1.25], [148.25, 1.15], [148.5, 1.25], [148.75, 1.15], [149.0, 1.25], [149.25, 1.15], [149.5, 1.25], [150.03, 1.03], [150.18, 0.68], [150.25, 0.65], [150.5, 0.75], [151.03, 0.53], [151.25, 0.0], [151.15, -0.25], [151.25, -0.5], [151.15, -0.75], [151.25, -1.0], [151.04, -1.5], [151.25, -2.0], [151.15, -2.25], [151.18, -2.32], [151.53, -2.47], [151.68, -2.82], [152.03, -2.97], [152.25, -3.5], [152.03, -4.03], [151.5, -4.25], [151.25, -4.15], [151.0, -4.25], [150.75, -4.15], [150.5, -4.25], [150.25, -4.15], [150.0, -4.25], [149.47, -4.03], [149.32, -3.68], [149.25, -3.65], [149.0, -3.75], [148.47, -3.53], [148.25, -3.0], [148.38, -2.7], [148.25, -2.65], [148.0, -2.75], [147.47, -2.53], [147.32, -2.18], [147.25, -2.15], [147.0, -2.25], [146.47, -2.03]]], [[[141.47, -0.53], [141.25, 0.0], [141.47, 0.53], [142.0, 0.75], [142.25, 0.65], [142.5, 0.75], [142.75, 0.65], [143.0, 0.75], [143.25, 0.65], [143.5, 0.75], [143.75, 0.65], [143.82, 0.68], [143.97, 1.03], [144.5, 1.25], [144.75, 1.15], [145.0, 1.25], [145.53, 1.03], [145.75, 0.5], [145.65, 0.25], [145.68, 0.18], [146.03, 0.03], [146.25, -0.5], [146.03, -1.03], [145.5, -1.25], [145.25, -1.15], [145.0, -1.25], [144.75, -1.15], [144.5, -1.25], [144.25, -1.15], [144.0, -1.25], [143.47, -1.03], [143.32, -0.68], [143.25, -0.65], [143.0, -0.75], [142.75, -0.65], [142.5, -0.75], [142.25, -0.65], [142.0, -0.75], [141.47, -0.53]]]]}, "2021-11-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.0, -0.75], [141.47, -0.53], [141.25, 0.0], [141.47, 0.53], [142.0, 0.75], [142.25, 0.65], [142.5, 0.75], [142.75, 0.65], [143.0, 0.75], [143.25, 0.65], [143.5, 0.75], [143.75, 0.65], [143.82, 0.68], [143.97, 1.03], [144.5, 1.25], [144.75, 1.15], [145.0, 1.25], [145.53, 1.03], [145.75, 0.5], [145.65, 0.25], [145.68, 0.18], [146.03, 0.03], [146.25, -0.5], [146.15, -0.75], [146.25, -1.0], [146.13, -1.3], [146.25, -1.35], [146.32, -1.32], [146.47, -0.97], [147.0, -0.75], [147.25, -0.85], [147.5, -0.75], [147.75, -0.85], [148.0, -0.75], [148.25, -0.85], [148.32, -0.82], [148.47, -0.47], [149.0, -0.25], [149.25, -0.35], [149.5, -0.25], [149.75, -0.35], [150.0, -0.25], [150.53, -0.47], [150.75, -1.0], [150.65, -1.25], [150.68, -1.32], [151.03, -1.47], [151.25, -2.0], [151.15, -2.25], [151.18, -2.32], [151.53, -2.47], [151.68, -2.82], [152.03, -2.97], [152.25, -3.5], [152.03, -4.03], [151.5, -4.25], [151.25, -4.15], [151.0, -4.25], [150.75, -4.15], [150.5, -4.25], [150.25, -4.15], [150.0, -4.25], [149.75, -4.15], [149.5, -4.25], [149.25, -4.15], [149.0, -4.25], [148.47, -4.03], [148.32, -3.68], [148.25, -3.65], [148.0, -3.75], [147.75, -3.65], [147.5, -3.75], [147.25, -3.65], [147.0, -3.75], [146.75, -3.65], [146.5, -3.75], [145.97, -3.53], [145.75, -3.0], [145.85, -2.75], [145.82, -2.68], [145.75, -2.65], [145.5, -2.75], [145.25, -2.65], [145.0, -2.75], [144.47, -2.53], [144.32, -2.18], [144.25, -2.15], [144.0, -2.25], [143.75, -2.15], [143.5, -2.25], [143.25, -2.15], [143.0, -2.25], [142.47, -2.03], [142.25, -1.5], [142.47, -0.97], [143.0, -0.75], [142.75, -0.65], [142.5, -0.75], [142.25, -0.65], [142.0, -0.75]], [[143.25, -0.85], [143.32, -0.82], [143.35, -0.75], [143.32, -0.68], [143.25, -0.65], [143.0, -0.75], [143.25, -0.85]]]]}, "2021-11-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.0, -0.75], [141.47, -0.53], [141.25, 0.0], [141.47, 0.53], [142.0, 0.75], [142.25, 0.65], [142.5, 0.75], [142.75, 0.65], [143.0, 0.75], [143.25, 0.65], [143.5, 0.75], [143.75, 0.65], [143.82, 0.68], [143.97, 1.03], [144.5, 1.25], [144.75, 1.15], [145.0, 1.25], [145.53, 1.03], [145.75, 0.5], [145.65, 0.25], [145.68, 0.18], [146.03, 0.03], [146.25, -0.5], [146.15, -0.75], [146.25, -1.0], [146.13, -1.3], [146.25, -1.35], [146.32, -1.32], [146.47, -0.97], [147.0, -0.75], [147.25, -0.85], [147.5, -0.75], [147.75, -0.85], [148.0, -0.75], [148.25, -0.85], [148.32, -0.82], [148.47, -0.47], [149.0, -0.25], [149.25, -0.35], [149.5, -0.25], [149.75, -0.35], [150.0, -0.25], [150.53, -0.47], [150.75, -1.0], [150.65, -1.25], [150.68, -1.32], [151.03, -1.47], [151.25, -2.0], [151.15, -2.25], [151.18, -2.32], [151.53, -2.47], [151.68, -2.82], [152.03, -2.97], [152.25, -3.5], [152.03, -4.03], [151.5, -4.25], [151.25, -4.15], [151.0, -4.25], [150.75, -4.15], [150.5, -4.25], [150.25, -4.15], [150.0, -4.25], [149.75, -4.15], [149.5, -4.25], [149.25, -4.15], [149.0, -4.25], [148.47, -4.03], [148.32, -3.68], [148.25, -3.65], [148.18, -3.68], [148.03, -4.03], [147.5, -4.25], [146.97, -4.03], [146.82, -3.68], [146.75, -3.65], [146.5, -3.75], [145.97, -3.53], [145.75, -3.0], [145.85, -2.75], [145.82, -2.68], [145.75, -2.65], [145.5, -2.75], [145.25, -2.65], [145.0, -2.75], [144.47, -2.53], [144.32, -2.18], [144.25, -2.15], [144.0, -2.25], [143.75, -2.15], [143.5, -2.25], [143.25, -2.15], [143.0, -2.25], [142.47, -2.03], [142.25, -1.5], [142.47, -0.97], [143.0, -0.75], [142.75, -0.65], [142.5, -0.75], [142.25, -0.65], [142.0, -0.75]], [[143.25, -0.85], [143.32, -0.82], [143.35, -0.75], [143.32, -0.68], [143.25, -0.65], [143.0, -0.75], [143.25, -0.85]]]]}, "2021-11-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[143.0, -2.25], [142.47, -2.03], [142.25, -1.5], [142.47, -0.97], [143.0, -0.75], [143.25, -0.85], [143.32, -0.82], [143.47, -0.47], [143.82, -0.32], [143.85, -0.25], [143.75, 0.0], [143.97, 0.53], [144.32, 0.68], [144.47, 1.03], [145.0, 1.25], [145.53, 1.03], [145.75, 0.5], [145.65, 0.25], [145.68, 0.18], [146.03, 0.03], [146.25, -0.5], [146.15, -0.75], [146.25, -1.0], [146.13, -1.3], [146.25, -1.35], [146.32, -1.32], [146.47, -0.97], [147.0, -0.75], [147.25, -0.85], [147.5, -0.75], [147.75, -0.85], [148.0, -0.75], [148.25, -0.85], [148.32, -0.82], [148.47, -0.47], [149.0, -0.25], [149.25, -0.35], [149.5, -0.25], [149.75, -0.35], [150.0, -0.25], [150.53, -0.47], [150.75, -1.0], [150.65, -1.25], [150.75, -1.5], [150.53, -2.03], [150.18, -2.18], [150.15, -2.25], [150.18, -2.32], [150.53, -2.47], [150.68, -2.82], [151.03, -2.97], [151.25, -3.5], [151.03, -4.03], [150.5, -4.25], [150.25, -4.15], [150.0, -4.25], [149.75, -4.15], [149.5, -4.25], [149.25, -4.15], [149.0, -4.25], [148.47, -4.03], [148.32, -3.68], [148.25, -3.65], [148.18, -3.68], [148.03, -4.03], [147.5, -4.25], [146.97, -4.03], [146.82, -3.68], [146.75, -3.65], [146.5, -3.75], [145.97, -3.53], [145.75, -3.0], [145.85, -2.75], [145.82, -2.68], [145.75, -2.65], [145.5, -2.75], [145.25, -2.65], [145.0, -2.75], [144.47, -2.53], [144.32, -2.18], [144.25, -2.15], [144.0, -2.25], [143.75, -2.15], [143.5, -2.25], [143.25, -2.15], [143.0, -2.25]]]]}, "2021-11-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[145.5, -2.75], [144.97, -2.53], [144.75, -2.0], [144.97, -1.47], [145.5, -1.25], [145.75, -1.35], [146.0, -1.25], [146.25, -1.35], [146.32, -1.32], [146.47, -0.97], [147.0, -0.75], [147.25, -0.85], [147.5, -0.75], [148.03, -0.97], [148.25, -1.5], [148.03, -2.03], [147.68, -2.18], [147.65, -2.25], [147.68, -2.32], [148.03, -2.47], [148.25, -3.0], [148.15, -3.25], [148.25, -3.5], [148.03, -4.03], [147.5, -4.25], [146.97, -4.03], [146.82, -3.68], [146.47, -3.53], [146.32, -3.18], [145.97, -3.03], [145.82, -2.68], [145.75, -2.65], [145.5, -2.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 1.831503872018743}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.1723414869210207}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.546938677961975, 28.904632069040247, 28.582854691242403, 28.593051426719853, 28.656563544723554, 28.619927529673475, 28.37239142776525]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.665901039906714, 29.06793259582298, 28.946146009627512, 29.002091520545775, 29.102470055742344, 29.208281449802655, 28.705742004907336]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.01051514014149, 1.3812912427409023, 1.0853655760013194, 1.1528514960192442, 1.2306828043986424, 1.215371798736792, 1.062988954381069]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.113754904812879, 1.5383959668355942, 1.435374402389698, 1.5513052670244178, 1.700171354623194, 1.831503872018743, 1.3411933507044296]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.666991114572361, 2.3438150473504256, 1.901608744747006, 2.0068177696937157, 2.102719900873673, 2.094971423911852, 1.928336899024648]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7992315456611059, 2.5586334557288484, 2.6022775573193497, 2.5688973087403593, 2.8392690428721066, 3.1239289625618816, 2.677373404354267]}}