{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:07:21.580716", "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-Aug-18_to_2025-Aug-20_119.5_15.0"}, "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": 2025080002170}, "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": "August 18 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 20 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 134516.39908429957}, "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": ["Philippines"]}, "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": 15.0}, "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": 119.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "119.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 116.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 121.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 16.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[115.25, 15.5], [115.47, 16.03], [116.0, 16.25], [116.25, 16.15], [116.5, 16.25], [116.75, 16.15], [117.0, 16.25], [117.25, 16.15], [117.32, 16.18], [117.47, 16.53], [118.0, 16.75], [118.25, 16.65], [118.5, 16.75], [118.75, 16.65], [119.0, 16.75], [119.53, 16.53], [119.68, 16.18], [119.75, 16.15], [120.0, 16.25], [120.25, 16.15], [120.5, 16.25], [120.75, 16.15], [121.0, 16.25], [121.53, 16.03], [121.75, 15.5], [121.65, 15.25], [121.75, 15.0], [121.65, 14.75], [121.75, 14.5], [121.65, 14.25], [121.75, 14.0], [121.54, 13.5], [121.75, 13.0], [121.65, 12.75], [121.75, 12.5], [121.53, 11.97], [121.0, 11.75], [120.75, 11.85], [120.5, 11.75], [119.97, 11.97], [119.75, 12.5], [119.85, 12.75], [119.82, 12.82], [119.47, 12.97], [119.3, 13.37], [119.0, 13.25], [118.47, 13.47], [118.32, 13.82], [118.0, 13.96], [117.5, 13.75], [117.25, 13.85], [117.0, 13.75], [116.75, 13.85], [116.5, 13.75], [116.25, 13.85], [116.0, 13.75], [115.47, 13.97], [115.25, 14.5], [115.35, 14.75], [115.25, 15.0], [115.35, 15.25], [115.25, 15.5]]]]}}, "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": {"2025-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.25, 15.0], [115.35, 15.25], [115.25, 15.5], [115.47, 16.03], [116.0, 16.25], [116.25, 16.15], [116.5, 16.25], [116.75, 16.15], [117.0, 16.25], [117.25, 16.15], [117.32, 16.18], [117.47, 16.53], [118.0, 16.75], [118.25, 16.65], [118.5, 16.75], [118.75, 16.65], [119.0, 16.75], [119.53, 16.53], [119.68, 16.18], [119.75, 16.15], [120.0, 16.25], [120.25, 16.15], [120.5, 16.25], [120.75, 16.15], [121.0, 16.25], [121.53, 16.03], [121.75, 15.5], [121.65, 15.25], [121.75, 15.0], [121.65, 14.75], [121.75, 14.5], [121.65, 14.25], [121.75, 14.0], [121.54, 13.5], [121.75, 13.0], [121.65, 12.75], [121.75, 12.5], [121.53, 11.97], [121.0, 11.75], [120.75, 11.85], [120.5, 11.75], [119.97, 11.97], [119.75, 12.5], [119.85, 12.75], [119.82, 12.82], [119.47, 12.97], [119.3, 13.37], [119.0, 13.25], [118.47, 13.47], [118.32, 13.82], [118.0, 13.96], [117.5, 13.75], [117.25, 13.85], [117.0, 13.75], [116.75, 13.85], [116.5, 13.75], [116.25, 13.85], [116.0, 13.75], [115.47, 13.97], [115.25, 14.5], [115.35, 14.75], [115.25, 15.0]]]]}, "2025-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.25, 15.0], [115.35, 15.25], [115.25, 15.5], [115.47, 16.03], [116.0, 16.25], [116.25, 16.15], [116.5, 16.25], [116.75, 16.15], [117.0, 16.25], [117.25, 16.15], [117.32, 16.18], [117.47, 16.53], [118.0, 16.75], [118.25, 16.65], [118.5, 16.75], [118.75, 16.65], [119.0, 16.75], [119.53, 16.53], [119.68, 16.18], [119.75, 16.15], [120.0, 16.25], [120.25, 16.15], [120.5, 16.25], [120.75, 16.15], [121.0, 16.25], [121.53, 16.03], [121.75, 15.5], [121.65, 15.25], [121.75, 15.0], [121.65, 14.75], [121.75, 14.5], [121.65, 14.25], [121.75, 14.0], [121.54, 13.5], [121.75, 13.0], [121.65, 12.75], [121.75, 12.5], [121.53, 11.97], [121.0, 11.75], 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14.0], [121.54, 13.5], [121.75, 13.0], [121.65, 12.75], [121.75, 12.5], [121.53, 11.97], [121.0, 11.75], [120.75, 11.85], [120.5, 11.75], [119.97, 11.97], [119.75, 12.5], [119.85, 12.75], [119.82, 12.82], [119.47, 12.97], [119.3, 13.37], [119.0, 13.25], [118.47, 13.47], [118.32, 13.82], [118.0, 13.96], [117.5, 13.75], [117.25, 13.85], [117.0, 13.75], [116.75, 13.85], [116.5, 13.75], [116.25, 13.85], [116.0, 13.75], [115.47, 13.97], [115.25, 14.5], [115.35, 14.75], [115.25, 15.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 2.3964410808320054}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.294789081327297}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [28.3529687386972, 28.44641531485098, 28.393339199490015]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.35894927978518, 29.52765808105471, 29.37622222900393]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.2330651438779872, 1.346229073167951, 1.3050730269359532]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.090881253157022, 2.3964410808320054, 2.328904187061937]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.795843536684025, 1.9872160651248603, 1.9520663884082874]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.4869025793391515, 2.551963513531147, 2.7148792505888486]}}