{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:51:59.893795", "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": "2024-May-22_to_2024-May-27_131.5_29.0"}, "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": 2024050001785}, "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 22 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 27 2024"}, "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": 88167.60293497329}, "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": ["Japan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": ["Eastern China Sea", "Philippine 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": 29.0}, "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": 131.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "131.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 127.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 131.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 28.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 32.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-05-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.5, 29.25], [132.03, 29.03], [132.25, 28.5], [132.03, 27.97], [131.5, 27.75], [130.97, 27.97], [130.75, 28.5], [130.97, 29.03], [131.5, 29.25]]]]}, "2024-05-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[130.47, 30.03], [131.0, 30.25], [131.25, 30.15], [131.5, 30.25], [132.03, 30.03], [132.25, 29.5], [132.15, 29.25], [132.25, 29.0], [132.15, 28.75], [132.25, 28.5], [132.03, 27.97], [131.5, 27.75], [130.97, 27.97], [130.82, 28.32], [130.47, 28.47], [130.25, 29.0], [130.35, 29.25], [130.25, 29.5], [130.47, 30.03]]]]}, "2024-05-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[131.0, 30.25], [131.25, 30.15], [131.5, 30.25], [132.03, 30.03], [132.25, 29.5], [132.15, 29.25], [132.25, 29.0], [132.15, 28.75], [132.25, 28.5], [132.03, 27.97], [131.5, 27.75], [130.97, 27.97], [130.82, 28.32], [130.47, 28.47], [130.25, 29.0], [130.35, 29.25], [130.25, 29.5], [130.47, 30.03], [131.0, 30.25]]], [[[130.85, 31.25], [130.75, 31.5], [130.97, 32.03], [131.5, 32.25], [132.03, 32.03], [132.25, 31.5], [132.15, 31.25], [132.25, 31.0], [132.03, 30.47], [131.5, 30.25], [130.97, 30.47], [130.75, 31.0], [130.85, 31.25]]]]}, "2024-05-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.97, 30.53], [127.5, 30.75], [127.75, 30.65], [128.0, 30.75], [128.25, 30.65], [128.5, 30.75], [128.75, 30.65], [128.82, 30.68], [128.97, 31.03], [129.32, 31.18], [129.35, 31.25], [129.25, 31.5], [129.47, 32.03], [130.0, 32.25], [130.25, 32.15], [130.32, 32.18], [130.47, 32.53], [131.0, 32.75], [131.53, 32.53], [131.68, 32.18], [132.03, 32.03], [132.25, 31.5], [132.15, 31.25], [132.25, 31.0], [132.03, 30.47], [131.68, 30.32], [131.65, 30.25], [131.68, 30.18], [132.03, 30.03], [132.25, 29.5], [132.15, 29.25], [132.25, 29.0], [132.03, 28.47], [131.5, 28.25], [131.25, 28.35], [131.0, 28.25], [130.47, 28.47], [130.32, 28.82], [130.25, 28.85], [130.0, 28.75], [129.75, 28.85], [129.5, 28.75], [129.25, 28.85], [129.0, 28.75], [128.75, 28.85], [128.5, 28.75], [128.25, 28.85], [128.0, 28.75], [127.75, 28.85], [127.5, 28.75], [126.97, 28.97], [126.75, 29.5], [126.85, 29.75], [126.75, 30.0], [126.97, 30.53]]]]}, "2024-05-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.97, 30.53], [127.5, 30.75], [127.75, 30.65], [128.0, 30.75], [128.25, 30.65], [128.5, 30.75], [128.75, 30.65], [128.82, 30.68], [128.97, 31.03], [129.32, 31.18], [129.35, 31.25], [129.25, 31.5], [129.47, 32.03], [130.0, 32.25], [130.25, 32.15], [130.32, 32.18], [130.47, 32.53], [131.0, 32.75], [131.53, 32.53], [131.68, 32.18], [132.03, 32.03], [132.25, 31.5], [132.15, 31.25], [132.25, 31.0], [132.03, 30.47], [131.68, 30.32], [131.65, 30.25], [131.75, 30.0], [131.65, 29.75], [131.68, 29.68], [132.03, 29.53], [132.25, 29.0], [132.03, 28.47], [131.5, 28.25], [131.25, 28.35], [131.0, 28.25], [130.47, 28.47], [130.32, 28.82], [130.25, 28.85], [130.0, 28.75], [129.75, 28.85], [129.5, 28.75], [129.25, 28.85], [129.0, 28.75], [128.75, 28.85], [128.5, 28.75], [128.25, 28.85], [128.0, 28.75], [127.75, 28.85], [127.5, 28.75], [126.97, 28.97], [126.75, 29.5], [126.85, 29.75], [126.75, 30.0], [126.97, 30.53]]]]}, "2024-05-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[126.97, 30.53], [127.5, 30.75], [127.75, 30.65], [128.0, 30.75], [128.25, 30.65], [128.5, 30.75], [128.75, 30.65], [128.82, 30.68], [128.97, 31.03], [129.32, 31.18], [129.35, 31.25], [129.25, 31.5], [129.47, 32.03], [130.0, 32.25], [130.25, 32.15], [130.32, 32.18], [130.47, 32.53], [131.0, 32.75], [131.53, 32.53], [131.68, 32.18], [132.03, 32.03], [132.25, 31.5], [132.15, 31.25], [132.25, 31.0], [132.03, 30.47], [131.68, 30.32], [131.65, 30.25], [131.75, 30.0], [131.65, 29.75], [131.68, 29.68], [132.03, 29.53], [132.25, 29.0], [132.03, 28.47], [131.5, 28.25], [131.25, 28.35], [131.0, 28.25], [130.47, 28.47], [130.32, 28.82], [130.25, 28.85], [130.0, 28.75], [129.75, 28.85], [129.5, 28.75], [129.25, 28.85], [129.0, 28.75], [128.75, 28.85], [128.5, 28.75], [128.25, 28.85], [128.0, 28.75], [127.75, 28.85], [127.5, 28.75], [126.97, 28.97], [126.75, 29.5], [126.85, 29.75], [126.75, 30.0], [126.97, 30.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.109947365926189}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.934855624120376}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.475925177771785, 25.4179049537359, 24.36936757756621, 24.26298480112132, 24.444837971614902, 24.829131463978513]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.475925177771785, 25.589099286865178, 24.827161221313986, 25.242214412478802, 25.481528716062428, 25.86048331867312]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.491751948209071, 2.354882005559034, 1.5667078678511075, 1.7745389288160585, 1.8854745672881748, 2.1794024974797086]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.491751948209071, 2.5959904261135875, 1.6907908867908645, 3.109947365926189, 2.520844041231726, 2.859366759451234]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3526898080413883, 2.2569999703884704, 1.5237758158393475, 1.5626827568122383, 1.719436822517997, 2.0181466325981225]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3526898080413883, 2.515340225857183, 1.6920565586647498, 2.0803949402404776, 2.019784770437009, 2.633059639580294]}}