{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:06:45.604553", "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-Jul-23_to_2025-Jul-28_118.5_39.0"}, "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": 2025070002691}, "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": "July 23 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 28 2025"}, "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": 65528.4315449799}, "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"]}, "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": 39.0}, "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": 118.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "118.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 114.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 119.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 36.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 39.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[113.75, 38.0], [113.97, 38.53], [114.5, 38.75], [114.75, 38.65], [114.82, 38.68], [114.97, 39.03], [115.5, 39.25], 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time step", "value": {"2025-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.75, 39.0], [117.97, 39.53], [118.5, 39.75], [118.75, 39.65], [119.0, 39.75], [119.53, 39.53], [119.75, 39.0], [119.53, 38.47], [119.18, 38.32], [119.03, 37.97], [118.5, 37.75], [117.97, 37.97], [117.75, 38.5], [117.85, 38.75], [117.75, 39.0]]]]}, "2025-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.5, 37.25], [114.97, 37.47], [114.75, 38.0], [114.97, 38.53], [115.5, 38.75], [115.75, 38.65], [116.0, 38.75], [116.25, 38.65], [116.5, 38.75], [116.8, 38.63], [116.97, 39.03], [117.32, 39.18], [117.47, 39.53], [118.0, 39.75], [118.25, 39.65], [118.5, 39.75], [118.75, 39.65], [119.0, 39.75], [119.53, 39.53], [119.75, 39.0], [119.53, 38.47], [119.18, 38.32], [119.03, 37.97], [118.5, 37.75], [118.25, 37.85], [118.0, 37.75], [117.75, 37.85], [117.5, 37.75], [117.2, 37.88], [117.03, 37.47], [116.5, 37.25], [116.25, 37.35], [116.0, 37.25], [115.75, 37.35], [115.5, 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