{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:55:24.734116", "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": "2023-Sep-19_to_2023-Sep-23_138.5_-6.5"}, "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": 2023090001665}, "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": "September 19 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 23 2023"}, "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": 85953.10472769977}, "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": ["Indonesia", "Papua New Guinea"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "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": []}, "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": -6.5}, "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": 138.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "138.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 138.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 142.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -8.0}, "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": [[[[142.25, -5.85], [142.5, -5.75], [143.03, -5.97], [143.25, -6.5], [143.03, -7.03], [142.68, -7.18], [142.65, -7.25], [142.75, -7.5], [142.53, -8.03], [142.0, -8.25], [141.7, -8.13], [141.53, -8.53], [141.0, -8.75], [140.75, -8.65], [140.5, -8.75], [139.97, -8.53], [139.82, -8.18], [139.75, -8.15], [139.5, -8.25], [139.0, -8.04], [138.5, -8.25], [137.97, -8.03], [137.75, -7.5], [137.96, -7.0], [137.75, -6.5], [137.85, -6.25], [137.75, -6.0], [137.97, -5.47], [138.5, -5.25], [138.75, -5.35], [139.0, -5.25], [139.25, -5.35], [139.32, -5.32], [139.47, -4.97], [140.0, -4.75], [140.25, -4.85], [140.5, -4.75], [141.03, -4.97], [141.18, -5.32], [141.25, -5.35], [141.5, -5.25], [142.03, -5.47], [142.18, -5.82], [142.25, -5.85]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-09-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[138.25, -6.0], [138.47, -5.47], [139.0, -5.25], [139.25, -5.35], [139.32, -5.32], [139.47, -4.97], [140.0, -4.75], [140.25, -4.85], [140.5, -4.75], [141.03, -4.97], [141.18, -5.32], [141.25, -5.35], [141.5, -5.25], [142.03, -5.47], [142.18, -5.82], [142.25, -5.85], [142.5, -5.75], [143.03, -5.97], [143.25, -6.5], [143.03, -7.03], [142.63, -7.2], [142.75, -7.5], [142.53, -8.03], [142.0, -8.25], [141.7, -8.13], [141.53, -8.53], [141.0, -8.75], [140.75, -8.65], [140.5, -8.75], [139.97, -8.53], [139.82, -8.18], [139.75, -8.15], [139.5, -8.25], [139.0, -8.04], [138.5, -8.25], [137.97, -8.03], [137.75, -7.5], [137.97, -6.97], [138.38, -6.8], [138.25, -6.5], [138.35, -6.25], [138.25, -6.0]]]]}, "2023-09-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.75, -6.0], [137.97, -5.47], [138.5, -5.25], [138.75, -5.35], [139.0, -5.25], [139.25, -5.35], [139.32, -5.32], [139.47, -4.97], [140.0, -4.75], [140.25, -4.85], [140.5, -4.75], [141.03, -4.97], [141.18, -5.32], [141.25, -5.35], [141.5, -5.25], [142.03, -5.47], [142.18, -5.82], [142.25, -5.85], [142.5, -5.75], [143.03, -5.97], [143.25, -6.5], [143.03, -7.03], [142.68, -7.18], [142.65, -7.25], [142.75, -7.5], [142.53, -8.03], [142.0, -8.25], [141.7, -8.13], [141.53, -8.53], [141.0, -8.75], [140.75, -8.65], [140.5, -8.75], [139.97, -8.53], [139.82, -8.18], [139.75, -8.15], [139.5, -8.25], [139.0, -8.04], [138.5, -8.25], [137.97, -8.03], [137.75, -7.5], [137.96, -7.0], [137.75, -6.5], [137.85, -6.25], [137.75, -6.0]]]]}, "2023-09-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[137.75, -6.0], [137.97, -5.47], [138.5, -5.25], [138.75, -5.35], [139.0, -5.25], [139.25, -5.35], [139.32, -5.32], [139.47, -4.97], [140.0, -4.75], [140.25, -4.85], [140.5, -4.75], [141.03, -4.97], [141.18, -5.32], [141.25, -5.35], [141.5, -5.25], [142.03, -5.47], [142.18, -5.82], [142.25, -5.85], [142.5, -5.75], [143.03, -5.97], [143.25, -6.5], [143.03, -7.03], [142.68, -7.18], [142.65, -7.25], [142.75, -7.5], [142.53, -8.03], [142.0, -8.25], [141.7, -8.13], [141.53, -8.53], [141.0, -8.75], [140.75, -8.65], [140.5, -8.75], [139.97, -8.53], [139.82, -8.18], [139.75, -8.15], [139.5, -8.25], [139.0, -8.04], [138.5, -8.25], [137.97, -8.03], [137.75, -7.5], [137.96, -7.0], [137.75, -6.5], [137.85, -6.25], [137.75, -6.0]]]]}, "2023-09-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[141.5, -5.75], [141.75, -5.85], [142.0, -5.75], [142.25, -5.85], [142.5, -5.75], [143.03, -5.97], [143.25, -6.5], [143.03, -7.03], [142.68, -7.18], [142.65, -7.25], [142.75, -7.5], [142.53, -8.03], [142.0, -8.25], [141.47, -8.03], [141.25, -7.5], [141.35, -7.25], [141.32, -7.18], [140.97, -7.03], [140.75, -6.5], [140.97, -5.97], [141.5, -5.75]]], [[[137.97, -5.47], [138.5, -5.25], [138.75, -5.35], [139.0, -5.25], [139.25, -5.35], [139.5, -5.25], [140.03, -5.47], [140.18, -5.82], [140.53, -5.97], [140.75, -6.5], [140.65, -6.75], [140.75, -7.0], [140.53, -7.53], [140.0, -7.75], [139.5, -7.54], [139.18, -7.68], [139.03, -8.03], [138.5, -8.25], [137.97, -8.03], [137.75, -7.5], [137.96, -7.0], [137.75, -6.5], [137.85, -6.25], [137.75, -6.0], [137.97, -5.47]]]]}, "2023-09-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[142.0, -8.25], [141.47, -8.03], [141.25, -7.5], [141.47, -6.97], [142.0, -6.75], [142.53, -6.97], [142.75, -7.5], [142.53, -8.03], [142.0, -8.25]]], [[[137.97, -5.47], [138.5, -5.25], [138.75, -5.35], [139.0, -5.25], [139.53, -5.47], [139.75, -6.0], [139.53, -6.53], [139.18, -6.68], [139.03, -7.03], [138.5, -7.25], [137.97, -7.03], [137.75, -6.5], [137.85, -6.25], [137.75, -6.0], [137.97, -5.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.4510885464079593}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.43526478915972}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.49036883006488, 27.58150465566473, 27.679027104150748, 27.526676938889636, 27.510674969870706]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.121282182899165, 28.40373267796997, 28.965923326053883, 28.458350177016825, 28.12095365658905]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.4060163809978838, 1.435714260773943, 1.5349830494294505, 1.351083033077388, 1.2179505982113454]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.8312543505837198, 1.9404450873597057, 2.4510885464079593, 1.842286010273483, 1.6235810262111272]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6008563972788397, 1.6826253120267278, 1.8131194955511245, 1.5771006282487785, 1.4139692567895796]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.1001981234370657, 2.1114023756677796, 3.011095953349197, 2.06855907817109, 1.4761505855747883]}}