{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:57:39.248400", "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-Feb-16_to_2024-Feb-18_117.0_38.5"}, "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": 2024020001521}, "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": "February 16 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 18 2024"}, "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": 122897.39033194579}, "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"]}, "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": ["Bohai Sea", "Yellow 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": 38.5}, "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": 117.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "117.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 113.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 120.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 35.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 39.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[113.5, 38.25], [113.75, 38.15], [114.0, 38.25], [114.3, 38.13], [114.47, 38.53], [115.0, 38.75], [115.25, 38.65], 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[112.97, 36.47], [112.75, 37.0], [112.85, 37.25], [112.75, 37.5], [112.97, 38.03], [113.5, 38.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-02-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[112.75, 37.5], [112.97, 38.03], [113.5, 38.25], [113.75, 38.15], [114.0, 38.25], [114.3, 38.13], [114.47, 38.53], [115.0, 38.75], [115.25, 38.65], [115.32, 38.68], [115.47, 39.03], [115.82, 39.18], [115.97, 39.53], [116.5, 39.75], [116.75, 39.65], [117.0, 39.75], [117.25, 39.65], [117.5, 39.75], [118.03, 39.53], [118.25, 39.0], [118.15, 38.75], [118.25, 38.5], [118.15, 38.25], [118.18, 38.18], [118.25, 38.15], [118.5, 38.25], [118.75, 38.15], [119.0, 38.25], [119.25, 38.15], [119.5, 38.25], [119.75, 38.15], [119.82, 38.18], [119.97, 38.53], [120.5, 38.75], [121.03, 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"coordinates": [[[[112.75, 37.5], [112.97, 38.03], [113.5, 38.25], [113.75, 38.15], [114.0, 38.25], [114.3, 38.13], [114.47, 38.53], [115.0, 38.75], [115.25, 38.65], [115.32, 38.68], [115.47, 39.03], [115.82, 39.18], [115.97, 39.53], [116.5, 39.75], [116.75, 39.65], [117.0, 39.75], [117.25, 39.65], [117.5, 39.75], [118.03, 39.53], [118.25, 39.0], [118.15, 38.75], [118.25, 38.5], [118.15, 38.25], [118.18, 38.18], [118.25, 38.15], [118.5, 38.25], [118.75, 38.15], [119.0, 38.25], [119.25, 38.15], [119.5, 38.25], [119.75, 38.15], [119.82, 38.18], [119.97, 38.53], [120.5, 38.75], [121.03, 38.53], [121.25, 38.0], [121.03, 37.47], [120.68, 37.32], [120.53, 36.97], [120.18, 36.82], [120.03, 36.47], [119.5, 36.25], [119.25, 36.35], [119.0, 36.25], [118.75, 36.35], [118.5, 36.25], [118.25, 36.35], [118.0, 36.25], [117.75, 36.35], [117.5, 36.25], [117.25, 36.35], [117.18, 36.32], [117.03, 35.97], [116.68, 35.82], [116.53, 35.47], [116.0, 35.25], [115.75, 35.35], [115.68, 35.32], [115.53, 34.97], 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[5.320208394421885, 8.144079020988071, 5.135482689842437]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.583039689770715, 9.333313930018903, 6.5173908186848735]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6078248429893223, 2.5278889540497786, 1.6405042358733537]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0468066184063254, 2.896284531516858, 2.030956292791341]}}