{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:55:48.928938", "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-Oct-23_to_2023-Oct-27_106.5_25.5"}, "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": 2023100001995}, "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": "October 23 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 27 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": 61410.6931032586}, "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": 25.5}, "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": 106.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "106.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 103.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 106.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 26.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[103.5, 23.75], [102.97, 23.97], [102.75, 24.5], [102.97, 25.03], [103.32, 25.18], [103.35, 25.25], [103.32, 25.32], [102.97, 25.47], [102.75, 26.0], [102.85, 26.25], [102.75, 26.5], [102.97, 27.03], [103.5, 27.25], [104.03, 27.03], [104.18, 26.68], [104.25, 26.65], [104.5, 26.75], [104.75, 26.65], [105.0, 26.75], [105.25, 26.65], [105.5, 26.75], [105.75, 26.65], [106.0, 26.75], [106.25, 26.65], [106.5, 26.75], [107.03, 26.53], [107.25, 26.0], [107.15, 25.75], [107.25, 25.5], [107.03, 24.97], [106.5, 24.75], [106.25, 24.85], [106.18, 24.82], [106.03, 24.47], [105.68, 24.32], [105.53, 23.97], [105.0, 23.75], [104.75, 23.85], [104.5, 23.75], [104.25, 23.85], [104.0, 23.75], [103.75, 23.85], [103.5, 23.75]]]]}}, "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": {"2023-10-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[102.75, 26.5], [102.97, 27.03], [103.5, 27.25], [104.03, 27.03], [104.18, 26.68], [104.25, 26.65], [104.5, 26.75], [104.75, 26.65], [105.0, 26.75], [105.25, 26.65], [105.5, 26.75], [105.75, 26.65], [106.0, 26.75], [106.25, 26.65], [106.5, 26.75], [107.03, 26.53], [107.25, 26.0], [107.15, 25.75], [107.25, 25.5], [107.03, 24.97], [106.5, 24.75], [106.25, 24.85], [106.18, 24.82], [106.03, 24.47], [105.68, 24.32], [105.53, 23.97], [105.0, 23.75], [104.75, 23.85], [104.5, 23.75], [104.25, 23.85], [104.0, 23.75], [103.47, 23.97], [103.25, 24.5], [103.35, 24.75], [103.25, 25.0], [103.35, 25.25], [103.32, 25.32], [102.97, 25.47], [102.75, 26.0], [102.85, 26.25], [102.75, 26.5]]]]}, "2023-10-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[102.75, 26.5], [102.97, 27.03], [103.5, 27.25], [104.03, 27.03], [104.18, 26.68], [104.25, 26.65], [104.5, 26.75], [104.75, 26.65], [105.0, 26.75], [105.25, 26.65], [105.5, 26.75], [105.75, 26.65], [106.0, 26.75], [106.25, 26.65], [106.5, 26.75], [107.03, 26.53], [107.25, 26.0], [107.15, 25.75], [107.25, 25.5], [107.03, 24.97], [106.5, 24.75], [106.25, 24.85], [106.18, 24.82], [106.03, 24.47], [105.68, 24.32], [105.53, 23.97], [105.0, 23.75], [104.75, 23.85], [104.5, 23.75], [104.25, 23.85], [104.0, 23.75], [103.47, 23.97], [103.25, 24.5], [103.35, 24.75], [103.25, 25.0], [103.35, 25.25], [103.32, 25.32], [102.97, 25.47], [102.75, 26.0], [102.85, 26.25], [102.75, 26.5]]]]}, "2023-10-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[102.75, 26.5], [102.97, 27.03], [103.5, 27.25], [104.03, 27.03], [104.18, 26.68], [104.25, 26.65], [104.5, 26.75], [104.75, 26.65], [105.0, 26.75], [105.25, 26.65], [105.5, 26.75], [105.75, 26.65], [106.0, 26.75], [106.25, 26.65], [106.5, 26.75], [107.03, 26.53], [107.25, 26.0], [107.15, 25.75], [107.25, 25.5], [107.03, 24.97], [106.5, 24.75], [106.25, 24.85], [106.18, 24.82], [106.03, 24.47], [105.68, 24.32], [105.53, 23.97], [105.0, 23.75], [104.75, 23.85], [104.5, 23.75], [104.25, 23.85], [104.0, 23.75], [103.75, 23.85], [103.5, 23.75], 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mean t2m.", "value": [19.414038903346523, 19.47789005092926, 19.899733642141655, 19.155353250901783, 19.349720596753116]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.254270796172648, 22.42028013020814, 23.493745842350734, 19.155353250901783, 19.349720596753116]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.647817451613556, 3.8108533592938634, 4.302185570089893, 3.0058788461647055, 3.34537278578415]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.25868452986731, 4.875975017448695, 5.611423468523753, 3.0058788461647055, 3.34537278578415]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4037335526155306, 1.4418698213222347, 1.6088760589554767, 1.2441391032240898, 1.3739845287276482]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5953830785292729, 1.7466696793204477, 2.0359743673818422, 1.2441391032240898, 1.3739845287276482]}}