{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:37:06.197850", "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-Nov-18_to_2023-Nov-21_121.5_46.5"}, "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": 2023110001631}, "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": "November 18 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 21 2023"}, "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": 53423.861556279626}, "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.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": 46.5}, "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": 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": 123.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 44.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 47.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-11-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.5, 47.25], [122.03, 47.03], [122.25, 46.5], [122.03, 45.97], [121.5, 45.75], [120.97, 45.97], [120.75, 46.5], [120.97, 47.03], [121.5, 47.25]]]]}, "2023-11-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.25, 46.0], [119.47, 46.53], [120.0, 46.75], [120.25, 46.65], [120.32, 46.68], [120.35, 46.75], [120.25, 47.0], [120.47, 47.53], [120.82, 47.68], [120.97, 48.03], [121.5, 48.25], [121.75, 48.15], [122.0, 48.25], [122.25, 48.15], [122.5, 48.25], [123.03, 48.03], [123.25, 47.5], [123.15, 47.25], [123.18, 47.18], [123.53, 47.03], [123.75, 46.5], [123.53, 45.97], [123.18, 45.82], [123.15, 45.75], [123.25, 45.5], [123.03, 44.97], [122.5, 44.75], [122.25, 44.85], [122.18, 44.82], [122.03, 44.47], [121.5, 44.25], [121.25, 44.35], [121.0, 44.25], [120.47, 44.47], [120.32, 44.82], [119.97, 44.97], [119.82, 45.32], [119.47, 45.47], [119.25, 46.0]]]]}, "2023-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.25, 46.0], [119.47, 46.53], [120.0, 46.75], [120.25, 46.65], [120.32, 46.68], [120.35, 46.75], [120.25, 47.0], [120.47, 47.53], [120.82, 47.68], [120.97, 48.03], [121.5, 48.25], [121.75, 48.15], [122.0, 48.25], [122.25, 48.15], [122.5, 48.25], [123.03, 48.03], [123.25, 47.5], [123.15, 47.25], [123.18, 47.18], [123.53, 47.03], [123.75, 46.5], [123.53, 45.97], [123.18, 45.82], [123.15, 45.75], [123.25, 45.5], [123.03, 44.97], [122.5, 44.75], [122.25, 44.85], [122.18, 44.82], [122.03, 44.47], [121.5, 44.25], [121.25, 44.35], [121.0, 44.25], [120.47, 44.47], [120.32, 44.82], [119.97, 44.97], [119.82, 45.32], [119.47, 45.47], [119.25, 46.0]]]]}, "2023-11-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.25, 46.0], [119.47, 46.53], [120.0, 46.75], [120.25, 46.65], [120.32, 46.68], [120.35, 46.75], [120.25, 47.0], [120.47, 47.53], [120.82, 47.68], [120.97, 48.03], [121.5, 48.25], [121.75, 48.15], [122.0, 48.25], [122.25, 48.15], [122.5, 48.25], [123.03, 48.03], [123.25, 47.5], [123.15, 47.25], [123.18, 47.18], [123.53, 47.03], [123.75, 46.5], [123.53, 45.97], [123.18, 45.82], [123.15, 45.75], [123.25, 45.5], [123.03, 44.97], [122.5, 44.75], [122.25, 44.85], [122.18, 44.82], [122.03, 44.47], [121.5, 44.25], [121.25, 44.35], [121.0, 44.25], [120.47, 44.47], [120.32, 44.82], [119.97, 44.97], [119.82, 45.32], [119.47, 45.47], [119.25, 46.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 12.890577753967023}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 9.202048495720177}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-1.601639929054386, -1.0772260475807798, 2.2988526464955044, 0.766757074346458]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-1.601639929054386, 0.9530868587241912, 3.8531122577054475, 3.264870451130662]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.709550550097106, 7.100658946753526, 10.901539587832906, 9.703646870399023]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.709550550097106, 7.8002245224836315, 12.890577753967023, 10.499092496965773]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.376548960976072, 1.454485734623483, 2.225371559323867, 1.9831413713877009]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.376548960976072, 1.5430644282716048, 2.556910081640712, 2.151615418789695]}}