{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:03:13.716205", "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-Jan-12_to_2025-Jan-14_112.0_29.0"}, "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": 2025010001627}, "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": "January 12 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 14 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": 103367.29105961019}, "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": []}, "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": 29.0}, "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": 112.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "112.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 108.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 112.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 26.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 30.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[107.97, 28.03], [108.32, 28.18], [108.35, 28.25], [108.25, 28.5], [108.47, 29.03], [108.82, 29.18], [108.97, 29.53], 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"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": {"2025-01-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[107.97, 26.97], [107.75, 27.5], [107.97, 28.03], [108.32, 28.18], [108.35, 28.25], [108.25, 28.5], [108.47, 29.03], [108.82, 29.18], [108.97, 29.53], [109.5, 29.75], [109.75, 29.65], [110.0, 29.75], [110.25, 29.65], [110.32, 29.68], [110.35, 29.75], [110.25, 30.0], [110.47, 30.53], [110.82, 30.68], [110.97, 31.03], [111.5, 31.25], [111.75, 31.15], [112.0, 31.25], [112.53, 31.03], [112.75, 30.5], [112.63, 30.2], [113.03, 30.03], [113.25, 29.5], [113.15, 29.25], [113.25, 29.0], [113.15, 28.75], [113.25, 28.5], [113.15, 28.25], [113.25, 28.0], [113.15, 27.75], [113.25, 27.5], [113.03, 26.97], [112.68, 26.82], [112.53, 26.47], [112.0, 26.25], [111.47, 26.47], [111.32, 26.82], [111.25, 26.85], 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5.132999829317701}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [8.694670412833261, 10.486781458269036, 9.737234269526994]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [10.200182851155603, 12.591886138916038, 12.569946543375693]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.171078084246569, 5.993426941924727, 5.234494461781814]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.789658974150427, 7.642212156198241, 7.088358395182354]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4414174061770308, 2.0824254203248134, 1.7852007731496404]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8376790110867125, 2.722210279280825, 2.3379018532723133]}}