{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:52.262518", "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": "2011-Feb-21_to_2011-Feb-23_129.0_45.5"}, "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": 2011020002308}, "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 21 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 23 2011"}, "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": 53320.09944088428}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia", "E.Siberia"]}, "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": 45.5}, "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": 129.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "129.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 123.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 129.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 42.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 46.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-02-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[122.97, 41.97], [122.75, 42.5], [122.97, 43.03], [123.5, 43.25], [123.75, 43.15], [123.82, 43.18], [123.97, 43.53], [124.32, 43.68], [124.35, 43.75], [124.25, 44.0], [124.47, 44.53], [124.82, 44.68], [124.97, 45.03], [125.5, 45.25], [125.75, 45.15], [126.0, 45.25], [126.53, 45.03], [126.7, 44.63], [126.82, 44.68], [126.85, 44.75], [126.75, 45.0], [126.97, 45.53], [127.5, 45.75], [127.93, 45.57], [127.75, 46.0], [127.97, 46.53], [128.5, 46.75], [129.03, 46.53], [129.18, 46.18], [129.25, 46.15], [129.5, 46.25], [130.03, 46.03], [130.25, 45.5], [130.03, 44.97], [129.68, 44.82], [129.53, 44.47], [129.18, 44.32], [129.03, 43.97], [128.68, 43.82], [128.53, 43.47], [128.0, 43.25], [127.5, 43.46], [127.18, 43.32], [127.03, 42.97], [126.5, 42.75], [126.25, 42.85], [126.0, 42.75], [125.75, 42.85], [125.68, 42.82], [125.53, 42.47], [125.18, 42.32], [125.03, 41.97], [124.5, 41.75], [124.25, 41.85], [124.0, 41.75], [123.75, 41.85], [123.5, 41.75], [122.97, 41.97]], [[128.25, 45.15], [128.32, 45.18], [128.35, 45.25], [128.32, 45.32], [128.07, 45.43], [128.18, 45.18], [128.25, 45.15]]]]}, "2011-02-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[122.97, 41.97], [122.75, 42.5], [122.97, 43.03], [123.5, 43.25], [123.75, 43.15], [123.82, 43.18], [123.97, 43.53], [124.32, 43.68], [124.35, 43.75], [124.25, 44.0], [124.47, 44.53], [124.82, 44.68], [124.97, 45.03], [125.5, 45.25], [125.75, 45.15], [126.0, 45.25], [126.53, 45.03], [126.7, 44.63], [126.82, 44.68], [126.85, 44.75], [126.75, 45.0], [126.97, 45.53], [127.5, 45.75], [127.93, 45.57], [127.75, 46.0], [127.97, 46.53], [128.5, 46.75], [129.03, 46.53], [129.18, 46.18], [129.25, 46.15], [129.5, 46.25], [130.03, 46.03], [130.25, 45.5], [130.03, 44.97], [129.68, 44.82], [129.53, 44.47], [129.18, 44.32], [129.03, 43.97], [128.68, 43.82], [128.53, 43.47], [128.0, 43.25], [127.5, 43.46], [127.18, 43.32], [127.03, 42.97], [126.5, 42.75], [126.25, 42.85], [126.0, 42.75], [125.75, 42.85], [125.68, 42.82], [125.53, 42.47], [125.18, 42.32], [125.03, 41.97], [124.5, 41.75], [124.25, 41.85], [124.0, 41.75], [123.75, 41.85], [123.5, 41.75], [122.97, 41.97]], [[128.25, 45.15], [128.32, 45.18], [128.35, 45.25], [128.32, 45.32], [128.07, 45.43], [128.18, 45.18], [128.25, 45.15]]]]}, "2011-02-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[122.97, 41.97], [122.75, 42.5], [122.97, 43.03], [123.5, 43.25], [123.75, 43.15], [123.82, 43.18], [123.97, 43.53], [124.32, 43.68], [124.35, 43.75], [124.25, 44.0], [124.47, 44.53], [124.82, 44.68], [124.97, 45.03], [125.5, 45.25], [125.75, 45.15], [126.0, 45.25], [126.53, 45.03], [126.7, 44.63], [126.82, 44.68], [126.85, 44.75], [126.75, 45.0], [126.97, 45.53], [127.5, 45.75], [127.93, 45.57], [127.75, 46.0], [127.97, 46.53], [128.5, 46.75], [129.03, 46.53], [129.18, 46.18], [129.25, 46.15], [129.5, 46.25], [130.03, 46.03], [130.25, 45.5], [130.03, 44.97], [129.68, 44.82], [129.53, 44.47], [129.18, 44.32], [129.03, 43.97], [128.68, 43.82], [128.53, 43.47], [128.0, 43.25], [127.5, 43.46], [127.18, 43.32], 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2.5478968379499065]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [8.227626714797935, 10.498382592807564, 8.069388732909893]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [9.904156648310789, 12.257148828401796, 9.537711080443955]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5551140434943393, 1.9740875475765598, 1.5320762013942428]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8709324551535962, 2.306546528404487, 1.844174195084282]}}