{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:21.574601", "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-25_to_2016-Sep-27_121.5_32.0"}, "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": 2016090002630}, "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 25 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 27 2016"}, "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": 90511.63879724359}, "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"]}, "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": ["Eastern China Sea", "Yellow 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": 32.0}, "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": 121.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "121.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 119.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 123.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 31.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 35.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-09-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.25, 34.0], [119.47, 34.53], [120.0, 34.75], [120.25, 34.65], [120.32, 34.68], [120.47, 35.03], [121.0, 35.25], [121.25, 35.15], [121.32, 35.18], [121.47, 35.53], [122.0, 35.75], [122.25, 35.65], [122.5, 35.75], [122.75, 35.65], [123.0, 35.75], [123.53, 35.53], [123.75, 35.0], [123.53, 34.47], [123.18, 34.32], [123.15, 34.25], [123.25, 34.0], [123.15, 33.75], [123.25, 33.5], [123.15, 33.25], [123.18, 33.18], [123.53, 33.03], [123.68, 32.68], [124.03, 32.53], [124.25, 32.0], [124.03, 31.47], [123.5, 31.25], [123.25, 31.35], [123.18, 31.32], [123.03, 30.97], [122.5, 30.75], [122.25, 30.85], [122.0, 30.75], [121.75, 30.85], [121.5, 30.75], [120.97, 30.97], [120.82, 31.32], [120.47, 31.47], [120.25, 32.0], [120.35, 32.25], [120.25, 32.5], [120.35, 32.75], [120.32, 32.82], [119.97, 32.97], [119.82, 33.32], [119.47, 33.47], [119.25, 34.0]]]]}, "2016-09-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.25, 34.0], [119.47, 34.53], [120.0, 34.75], [120.25, 34.65], [120.32, 34.68], [120.47, 35.03], [121.0, 35.25], [121.25, 35.15], [121.32, 35.18], [121.47, 35.53], [122.0, 35.75], [122.25, 35.65], [122.5, 35.75], [122.75, 35.65], [123.0, 35.75], [123.53, 35.53], [123.75, 35.0], [123.53, 34.47], [123.18, 34.32], [123.15, 34.25], [123.25, 34.0], [123.15, 33.75], [123.25, 33.5], [123.15, 33.25], [123.18, 33.18], [123.53, 33.03], [123.68, 32.68], [124.03, 32.53], [124.25, 32.0], [124.03, 31.47], [123.5, 31.25], [123.25, 31.35], [123.18, 31.32], [123.03, 30.97], [122.5, 30.75], [122.25, 30.85], [122.0, 30.75], [121.75, 30.85], [121.5, 30.75], [120.97, 30.97], [120.82, 31.32], [120.47, 31.47], [120.25, 32.0], [120.35, 32.25], [120.25, 32.5], [120.35, 32.75], [120.32, 32.82], [119.97, 32.97], [119.82, 33.32], [119.47, 33.47], [119.25, 34.0]]]]}, "2016-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.25, 34.0], [119.47, 34.53], [120.0, 34.75], [120.25, 34.65], [120.32, 34.68], [120.47, 35.03], [121.0, 35.25], [121.25, 35.15], [121.32, 35.18], [121.47, 35.53], [122.0, 35.75], [122.25, 35.65], [122.5, 35.75], [122.75, 35.65], [123.0, 35.75], [123.53, 35.53], [123.75, 35.0], [123.53, 34.47], [123.18, 34.32], [123.15, 34.25], [123.25, 34.0], [123.15, 33.75], [123.25, 33.5], [123.15, 33.25], [123.18, 33.18], [123.53, 33.03], [123.68, 32.68], [124.03, 32.53], [124.25, 32.0], [124.03, 31.47], [123.5, 31.25], [123.25, 31.35], [123.18, 31.32], [123.03, 30.97], [122.5, 30.75], [122.25, 30.85], [122.0, 30.75], [121.75, 30.85], [121.5, 30.75], [120.97, 30.97], [120.82, 31.32], [120.47, 31.47], [120.25, 32.0], [120.35, 32.25], [120.25, 32.5], [120.35, 32.75], [120.32, 32.82], [119.97, 32.97], [119.82, 33.32], [119.47, 33.47], [119.25, 34.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.497962707844124}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.1158910839246774}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.978707688617078, 24.665106994065525, 24.6032297227149]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.157752051190585, 26.079906857922253, 26.80041848119629]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.545452347740432, 2.370158502753416, 2.432062401280184]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.1594614395332883, 3.6515205750940254, 4.497962707844124]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3541802346443335, 2.0479890467226576, 2.0506811127643343]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.546376791593722, 2.254095938277419, 2.620142243131474]}}