{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:55:32.000908", "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-May-03_to_2025-May-10_109.0_15.5"}, "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": 2025050001059}, "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 03 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 10 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 339133.47659128194}, "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": ["China", "Vietnam"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia", "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": ["South China 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": 15.5}, "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": 109.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "109.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 108.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 113.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 21.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2025-05-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[109.0, 16.75], [109.53, 16.53], [109.75, 16.0], [109.65, 15.75], [109.75, 15.5], [109.53, 14.97], [109.0, 14.75], [108.47, 14.97], [108.25, 15.5], [108.35, 15.75], [108.25, 16.0], [108.47, 16.53], [109.0, 16.75]]], [[[108.97, 18.53], [109.5, 18.75], [109.75, 18.65], [109.82, 18.68], [109.85, 18.75], [109.75, 19.0], [109.97, 19.53], [110.5, 19.75], [110.75, 19.65], [110.82, 19.68], [110.85, 19.75], [110.75, 20.0], [110.85, 20.25], [110.75, 20.5], [110.97, 21.03], [111.5, 21.25], [111.75, 21.15], [112.0, 21.25], [112.53, 21.03], [112.75, 20.5], [112.53, 19.97], [112.18, 19.82], [112.15, 19.75], [112.25, 19.5], [112.03, 18.97], [111.68, 18.82], [111.65, 18.75], [111.75, 18.5], [111.53, 17.97], [111.0, 17.75], [110.75, 17.85], [110.68, 17.82], [110.53, 17.47], [110.0, 17.25], [109.75, 17.35], [109.5, 17.25], [108.97, 17.47], [108.75, 18.0], [108.97, 18.53]]], [[[112.75, 21.0], [112.97, 21.53], [113.5, 21.75], [114.03, 21.53], [114.25, 21.0], [114.03, 20.47], [113.5, 20.25], [112.97, 20.47], [112.75, 21.0]]]]}, "2025-05-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[109.0, 16.75], [109.53, 16.53], [109.75, 16.0], [109.65, 15.75], [109.68, 15.68], [110.03, 15.53], [110.25, 15.0], [110.15, 14.75], [110.25, 14.5], [110.03, 13.97], [109.5, 13.75], [108.97, 13.97], [108.75, 14.5], [108.85, 14.75], [108.82, 14.82], [108.47, 14.97], [108.25, 15.5], [108.35, 15.75], [108.25, 16.0], [108.47, 16.53], [109.0, 16.75]]], [[[109.97, 19.53], [110.32, 19.68], [110.47, 20.03], [110.82, 20.18], [110.85, 20.25], [110.8, 20.38], [110.5, 20.25], [109.97, 20.47], [109.75, 21.0], [109.97, 21.53], [110.32, 21.68], [110.47, 22.03], [111.0, 22.25], [111.25, 22.15], [111.5, 22.25], [112.03, 22.03], [112.18, 21.68], [112.53, 21.53], [112.68, 21.18], [112.8, 21.13], [112.97, 21.53], [113.5, 21.75], [114.03, 21.53], [114.25, 21.0], [114.03, 20.47], [113.5, 20.25], [113.2, 20.38], [113.03, 19.97], [112.68, 19.82], [112.65, 19.75], [112.75, 19.5], [112.65, 19.25], [112.75, 19.0], [112.65, 18.75], [112.75, 18.5], [112.65, 18.25], [112.75, 18.0], [112.53, 17.47], [112.0, 17.25], [111.75, 17.35], [111.5, 17.25], [111.25, 17.35], [111.0, 17.25], [110.75, 17.35], [110.5, 17.25], [110.25, 17.35], [110.0, 17.25], [109.75, 17.35], [109.5, 17.25], [108.97, 17.47], [108.75, 18.0], [108.97, 18.53], [109.32, 18.68], [109.47, 19.03], [109.82, 19.18], [109.97, 19.53]]]]}, "2025-05-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[109.0, 16.75], [109.53, 16.53], [109.75, 16.0], [109.65, 15.75], [109.68, 15.68], [110.03, 15.53], [110.25, 15.0], [110.15, 14.75], [110.25, 14.5], [110.03, 13.97], [109.5, 13.75], [108.97, 13.97], [108.75, 14.5], [108.85, 14.75], [108.82, 14.82], [108.47, 14.97], [108.25, 15.5], [108.35, 15.75], [108.25, 16.0], [108.47, 16.53], [109.0, 16.75]]], [[[109.97, 19.53], [110.32, 19.68], [110.38, 19.8], [109.97, 19.97], [109.75, 20.5], [109.85, 20.75], [109.75, 21.0], [109.97, 21.53], [110.32, 21.68], [110.47, 22.03], [111.0, 22.25], [111.25, 22.15], [111.5, 22.25], [111.75, 22.15], [112.0, 22.25], [112.25, 22.15], [112.5, 22.25], [112.75, 22.15], [113.0, 22.25], [113.53, 22.03], [113.68, 21.68], [114.03, 21.53], [114.25, 21.0], [114.03, 20.47], [113.68, 20.32], [113.53, 19.97], [113.18, 19.82], [113.04, 19.5], [113.25, 19.0], [113.03, 18.47], [112.68, 18.32], [112.65, 18.25], [112.75, 18.0], [112.53, 17.47], [112.0, 17.25], [111.75, 17.35], [111.5, 17.25], [111.25, 17.35], [111.0, 17.25], [110.75, 17.35], [110.5, 17.25], [110.25, 17.35], [110.0, 17.25], [109.75, 17.35], [109.5, 17.25], [108.97, 17.47], [108.75, 18.0], [108.97, 18.53], [109.32, 18.68], [109.47, 19.03], [109.82, 19.18], [109.97, 19.53]]]]}, "2025-05-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[108.35, 15.25], [108.25, 15.5], [108.35, 15.75], [108.25, 16.0], [108.47, 16.53], [109.0, 16.75], [109.25, 16.65], [109.32, 16.68], [109.46, 17.0], [109.32, 17.32], [108.97, 17.47], [108.82, 17.82], [108.47, 17.97], [108.25, 18.5], [108.35, 18.75], [108.25, 19.0], [108.47, 19.53], [109.0, 19.75], [109.43, 19.57], [109.25, 20.0], [109.47, 20.53], [109.82, 20.68], [109.85, 20.75], [109.75, 21.0], [109.97, 21.53], [110.32, 21.68], [110.47, 22.03], [111.0, 22.25], [111.25, 22.15], [111.5, 22.25], [111.75, 22.15], [112.0, 22.25], [112.25, 22.15], [112.5, 22.25], [112.75, 22.15], [113.0, 22.25], [113.53, 22.03], [113.68, 21.68], [114.03, 21.53], [114.25, 21.0], [114.15, 20.75], [114.25, 20.5], [114.03, 19.97], [113.68, 19.82], [113.65, 19.75], [113.75, 19.5], [113.53, 18.97], [113.18, 18.82], [113.03, 18.47], [112.68, 18.32], [112.65, 18.25], [112.75, 18.0], [112.65, 17.75], [112.75, 17.5], [112.53, 16.97], [112.18, 16.82], [112.15, 16.75], [112.25, 16.5], [112.15, 16.25], [112.25, 16.0], [112.15, 15.75], [112.25, 15.5], [112.15, 15.25], [112.18, 15.18], [112.53, 15.03], [112.75, 14.5], [112.53, 13.97], [112.18, 13.82], [112.03, 13.47], [111.5, 13.25], [110.97, 13.47], [110.82, 13.82], [110.47, 13.97], [110.25, 14.5], [110.15, 14.25], [110.25, 14.0], [110.03, 13.47], [109.5, 13.25], [108.97, 13.47], [108.82, 13.82], [108.47, 13.97], [108.25, 14.5], [108.35, 14.75], [108.25, 15.0], [108.35, 15.25]], [[110.35, 14.75], [110.32, 14.82], [110.2, 14.87], [110.15, 14.75], [110.25, 14.5], [110.35, 14.75]], [[109.88, 19.3], [109.57, 19.43], [109.7, 19.13], [109.82, 19.18], [109.88, 19.3]]]]}, "2025-05-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[107.85, 18.75], [107.75, 19.0], [107.97, 19.53], [108.5, 19.75], [108.75, 19.65], [109.0, 19.75], [109.43, 19.57], [109.25, 20.0], [109.47, 20.53], [109.82, 20.68], [109.85, 20.75], [109.75, 21.0], [109.97, 21.53], [110.32, 21.68], [110.47, 22.03], [111.0, 22.25], [111.25, 22.15], [111.5, 22.25], [111.75, 22.15], [112.0, 22.25], [112.25, 22.15], [112.5, 22.25], [112.75, 22.15], [113.0, 22.25], [113.53, 22.03], [113.68, 21.68], [114.03, 21.53], [114.25, 21.0], [114.15, 20.75], [114.25, 20.5], [114.15, 20.25], [114.25, 20.0], [114.03, 19.47], [113.68, 19.32], [113.53, 18.97], [113.18, 18.82], [113.03, 18.47], [112.68, 18.32], [112.65, 18.25], [112.75, 18.0], [112.65, 17.75], [112.75, 17.5], [112.65, 17.25], [112.75, 17.0], [112.65, 16.75], [112.68, 16.68], [113.03, 16.53], [113.25, 16.0], [113.15, 15.75], [113.18, 15.68], [113.53, 15.53], [113.75, 15.0], [113.65, 14.75], [113.68, 14.68], [114.03, 14.53], [114.25, 14.0], [114.15, 13.75], [114.25, 13.5], [114.03, 12.97], [113.5, 12.75], [112.97, 12.97], [112.82, 13.32], [112.75, 13.35], [112.5, 13.25], [112.25, 13.35], [112.0, 13.25], [111.75, 13.35], [111.5, 13.25], [110.97, 13.47], [110.82, 13.82], [110.75, 13.85], [110.68, 13.82], [110.65, 13.75], [110.75, 13.5], [110.53, 12.97], [110.18, 12.82], [110.15, 12.75], [110.25, 12.5], [110.03, 11.97], [109.5, 11.75], [108.97, 11.97], [108.75, 12.5], [108.85, 12.75], [108.75, 13.0], [108.85, 13.25], [108.75, 13.5], [108.85, 13.75], [108.82, 13.82], [108.47, 13.97], [108.25, 14.5], [108.35, 14.75], [108.25, 15.0], [108.35, 15.25], [108.25, 15.5], [108.35, 15.75], [108.25, 16.0], [108.47, 16.53], [108.82, 16.68], [108.85, 16.75], [108.82, 16.82], [108.47, 16.97], [108.32, 17.32], [107.97, 17.47], [107.75, 18.0], [107.85, 18.25], [107.75, 18.5], [107.85, 18.75]], [[109.88, 19.3], [109.57, 19.43], [109.7, 19.13], [109.82, 19.18], [109.88, 19.3]]]]}, "2025-05-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[107.85, 18.75], [107.75, 19.0], [107.97, 19.53], [108.5, 19.75], [108.75, 19.65], [109.0, 19.75], [109.43, 19.57], [109.25, 20.0], [109.47, 20.53], [109.82, 20.68], [109.85, 20.75], [109.75, 21.0], [109.97, 21.53], [110.32, 21.68], [110.47, 22.03], [111.0, 22.25], [111.25, 22.15], [111.5, 22.25], [111.75, 22.15], [112.0, 22.25], [112.25, 22.15], [112.5, 22.25], [112.75, 22.15], [113.0, 22.25], [113.53, 22.03], [113.68, 21.68], [114.03, 21.53], [114.25, 21.0], [114.15, 20.75], [114.25, 20.5], [114.15, 20.25], [114.25, 20.0], [114.03, 19.47], [113.68, 19.32], [113.53, 18.97], [113.18, 18.82], [113.03, 18.47], [112.68, 18.32], [112.65, 18.25], [112.75, 18.0], [112.65, 17.75], [112.75, 17.5], [112.65, 17.25], [112.75, 17.0], [112.65, 16.75], [112.68, 16.68], [113.03, 16.53], [113.25, 16.0], [113.15, 15.75], [113.18, 15.68], [113.53, 15.53], [113.75, 15.0], [113.65, 14.75], [113.68, 14.68], [114.03, 14.53], [114.25, 14.0], [114.15, 13.75], [114.25, 13.5], [114.03, 12.97], [113.5, 12.75], [112.97, 12.97], [112.82, 13.32], [112.75, 13.35], [112.5, 13.25], [112.25, 13.35], [112.0, 13.25], [111.75, 13.35], [111.5, 13.25], [110.97, 13.47], [110.82, 13.82], [110.75, 13.85], [110.68, 13.82], [110.65, 13.75], [110.75, 13.5], [110.53, 12.97], [110.18, 12.82], [110.15, 12.75], [110.25, 12.5], [110.03, 11.97], [109.5, 11.75], [108.97, 11.97], [108.75, 12.5], [108.85, 12.75], [108.75, 13.0], [108.85, 13.25], [108.75, 13.5], [108.85, 13.75], [108.82, 13.82], [108.47, 13.97], [108.25, 14.5], [108.35, 14.75], [108.25, 15.0], [108.35, 15.25], [108.25, 15.5], [108.35, 15.75], [108.25, 16.0], [108.47, 16.53], [108.82, 16.68], [108.85, 16.75], [108.82, 16.82], [108.47, 16.97], [108.32, 17.32], [107.97, 17.47], [107.75, 18.0], [107.85, 18.25], [107.75, 18.5], [107.85, 18.75]], [[109.88, 19.3], [109.57, 19.43], [109.7, 19.13], [109.82, 19.18], [109.88, 19.3]]]]}, "2025-05-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[107.85, 18.75], [107.75, 19.0], [107.97, 19.53], [108.5, 19.75], [109.03, 19.53], [109.18, 19.18], [109.5, 19.04], [109.82, 19.18], [109.97, 19.53], [110.32, 19.68], [110.47, 20.03], [110.82, 20.18], [110.97, 20.53], [111.5, 20.75], [111.75, 20.65], [112.0, 20.75], [112.53, 20.53], [112.7, 20.13], [112.82, 20.18], [112.97, 20.53], [113.5, 20.75], [114.03, 20.53], [114.25, 20.0], [114.03, 19.47], [113.68, 19.32], [113.53, 18.97], [113.18, 18.82], [113.03, 18.47], [112.68, 18.32], [112.65, 18.25], [112.75, 18.0], [112.65, 17.75], [112.75, 17.5], [112.65, 17.25], [112.75, 17.0], [112.65, 16.75], [112.68, 16.68], [113.03, 16.53], [113.25, 16.0], [113.15, 15.75], [113.18, 15.68], [113.53, 15.53], [113.75, 15.0], [113.65, 14.75], [113.68, 14.68], [114.03, 14.53], [114.25, 14.0], [114.15, 13.75], [114.25, 13.5], [114.03, 12.97], [113.5, 12.75], [112.97, 12.97], [112.82, 13.32], [112.75, 13.35], [112.5, 13.25], [112.25, 13.35], [112.0, 13.25], [111.47, 13.47], [111.32, 13.82], [111.25, 13.85], [111.0, 13.75], [110.75, 13.85], [110.68, 13.82], [110.65, 13.75], [110.75, 13.5], [110.53, 12.97], [110.18, 12.82], [110.15, 12.75], [110.25, 12.5], [110.03, 11.97], [109.5, 11.75], [108.97, 11.97], [108.75, 12.5], [108.85, 12.75], [108.75, 13.0], [108.85, 13.25], [108.75, 13.5], [108.85, 13.75], [108.82, 13.82], [108.47, 13.97], [108.25, 14.5], [108.35, 14.75], [108.25, 15.0], [108.35, 15.25], [108.25, 15.5], [108.35, 15.75], [108.25, 16.0], [108.47, 16.53], [108.82, 16.68], [108.85, 16.75], [108.82, 16.82], [108.47, 16.97], [108.32, 17.32], [107.97, 17.47], [107.75, 18.0], [107.85, 18.25], [107.75, 18.5], [107.85, 18.75]]]]}, "2025-05-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[108.25, 15.5], [108.47, 16.03], [109.0, 16.25], [109.53, 16.03], [109.68, 15.68], [110.03, 15.53], [110.25, 15.0], [110.15, 14.75], [110.25, 14.5], [110.03, 13.97], [109.5, 13.75], [108.97, 13.97], [108.75, 14.5], [108.85, 14.75], [108.82, 14.82], [108.47, 14.97], [108.25, 15.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.6052780698865945}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.3546555640778135}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.076528461162923, 28.280438725635236, 28.17507256204766, 28.56733976836898, 28.886161207116174, 29.04149490577595, 29.213523455633663, 28.598488532172325]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.60144958496096, 28.867140706380212, 28.941587066650413, 29.756408945719443, 29.780287679036462, 30.19200795491537, 30.443865712483728, 28.67040150960287]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.2600790839376566, 1.4027244935723657, 1.4210280813655543, 1.3071306568385916, 1.333721651135665, 1.438236325587495, 1.2934035546773661, 0.9969693538652109]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.571112475498694, 2.5447885620488933, 2.511110814524841, 2.6052780698865945, 2.410259374217219, 2.3393987292337215, 2.288197370182445, 1.0491235659883955]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3992179841745516, 1.4934596507476043, 1.4459197268962038, 1.4622112733665869, 1.5972237907864753, 1.6995796924872848, 1.6316275547102168, 1.4259883643075006]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7858550264786748, 1.9941111277239494, 1.7483593404597442, 2.0022359064741266, 2.811955359572455, 2.7653871447640452, 2.4575844555423783, 1.49308297212696]}}