{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:15.549687", "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": "2016-Sep-03_to_2016-Sep-06_129.5_50.0"}, "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": 2016090001142}, "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": "September 03 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 06 2016"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 66699.72107299986}, "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", "Russian Federation"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Siberia", "Russian-Far-East"]}, "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": 50.0}, "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": 129.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "129.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 127.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 133.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 48.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 51.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-09-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.47, 51.53], [128.0, 51.75], [128.25, 51.65], [128.32, 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51.68], [128.47, 52.03], [129.0, 52.25], [129.25, 52.15], [129.5, 52.25], [129.75, 52.15], [130.0, 52.25], [130.25, 52.15], [130.5, 52.25], [130.75, 52.15], [131.0, 52.25], [131.25, 52.15], [131.5, 52.25], [132.03, 52.03], [132.18, 51.68], [132.5, 51.54], [133.0, 51.75], [133.53, 51.53], [133.75, 51.0], [133.53, 50.47], [133.18, 50.32], [133.15, 50.25], [133.25, 50.0], [133.03, 49.47], [132.68, 49.32], [132.53, 48.97], [132.0, 48.75], [131.47, 48.97], [131.32, 49.32], [131.25, 49.35], [131.0, 49.25], [130.75, 49.35], [130.68, 49.32], [130.65, 49.25], [130.75, 49.0], [130.53, 48.47], [130.0, 48.25], [129.47, 48.47], [129.25, 49.0], [129.35, 49.25], [129.32, 49.32], [129.25, 49.35], [129.0, 49.25], [128.47, 49.47], [128.32, 49.82], [128.25, 49.85], [128.0, 49.75], [127.47, 49.97], [127.25, 50.5], [127.35, 50.75], [127.25, 51.0], [127.47, 51.53]]]]}, "2016-09-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[127.47, 51.53], [128.0, 51.75], [128.25, 51.65], [128.32, 51.68], [128.47, 52.03], [129.0, 52.25], [129.25, 52.15], [129.5, 52.25], [129.75, 52.15], [130.0, 52.25], [130.25, 52.15], [130.5, 52.25], [130.75, 52.15], [131.0, 52.25], [131.25, 52.15], [131.5, 52.25], [132.03, 52.03], [132.18, 51.68], [132.5, 51.54], [133.0, 51.75], [133.53, 51.53], [133.75, 51.0], [133.53, 50.47], [133.18, 50.32], [133.15, 50.25], [133.25, 50.0], [133.03, 49.47], [132.68, 49.32], [132.53, 48.97], [132.0, 48.75], [131.47, 48.97], [131.32, 49.32], [131.25, 49.35], [131.0, 49.25], [130.75, 49.35], [130.68, 49.32], [130.65, 49.25], [130.75, 49.0], [130.53, 48.47], [130.0, 48.25], [129.47, 48.47], [129.25, 49.0], [129.35, 49.25], [129.32, 49.32], [129.25, 49.35], [129.0, 49.25], [128.47, 49.47], [128.32, 49.82], [128.25, 49.85], [128.0, 49.75], [127.47, 49.97], [127.25, 50.5], [127.35, 50.75], [127.25, 51.0], [127.47, 51.53]]]]}, "2016-09-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[129.5, 50.75], [130.03, 50.53], [130.25, 50.0], [130.03, 49.47], [129.5, 49.25], [128.97, 49.47], [128.75, 50.0], [128.97, 50.53], [129.5, 50.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.692877375439309}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.704154497430755}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [18.900578544597636, 19.016734554452512, 18.790220769619395, 18.87153831577291]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.878213222119996, 20.584671449675, 20.15453268198445, 18.87153831577291]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.388298883382468, 4.796967506068425, 4.936300807088433, 4.394628553030657]}, "anom_evo_maxamp": {"name": 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