{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:22:19.918307", "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": "2020-Nov-22_to_2020-Nov-26_121.0_57.5"}, "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": 2020110002145}, "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 22 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 26 2020"}, "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": 57852.06959674554}, "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": ["Russian Federation"]}, "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": 57.5}, "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": 121.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "121.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 115.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 121.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 56.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 59.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-11-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.75, 57.5], [114.97, 58.03], [115.5, 58.25], [115.75, 58.15], [115.82, 58.18], [115.97, 58.53], [116.5, 58.75], [116.75, 58.65], [116.82, 58.68], [116.85, 58.75], [116.75, 59.0], [116.97, 59.53], [117.5, 59.75], [117.75, 59.65], [118.0, 59.75], [118.25, 59.65], [118.5, 59.75], [119.03, 59.53], [119.25, 59.0], [119.15, 58.75], [119.18, 58.68], [119.25, 58.65], [119.5, 58.75], [119.75, 58.65], [120.0, 58.75], [120.25, 58.65], [120.5, 58.75], [121.03, 58.53], [121.18, 58.18], [121.53, 58.03], [121.75, 57.5], [121.53, 56.97], [121.0, 56.75], [120.75, 56.85], [120.68, 56.82], [120.65, 56.75], [120.75, 56.5], [120.53, 55.97], [120.0, 55.75], [119.75, 55.85], [119.5, 55.75], [118.97, 55.97], [118.8, 56.38], [118.5, 56.25], [117.97, 56.47], [117.8, 56.88], [117.5, 56.75], [117.25, 56.85], [117.0, 56.75], [116.75, 56.85], [116.68, 56.82], [116.53, 56.47], [116.0, 56.25], [115.47, 56.47], [115.32, 56.82], [114.97, 56.97], [114.75, 57.5]]]]}, "2020-11-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.75, 57.5], [114.97, 58.03], [115.5, 58.25], [115.75, 58.15], [115.82, 58.18], [115.97, 58.53], [116.5, 58.75], [116.75, 58.65], [116.82, 58.68], [116.85, 58.75], [116.75, 59.0], [116.97, 59.53], [117.5, 59.75], [117.75, 59.65], [118.0, 59.75], [118.25, 59.65], [118.5, 59.75], [119.03, 59.53], [119.25, 59.0], [119.15, 58.75], [119.18, 58.68], [119.25, 58.65], [119.5, 58.75], [119.75, 58.65], [120.0, 58.75], [120.25, 58.65], [120.5, 58.75], [121.03, 58.53], [121.18, 58.18], [121.53, 58.03], [121.75, 57.5], [121.65, 57.25], [121.75, 57.0], [121.65, 56.75], [121.75, 56.5], [121.53, 55.97], [121.0, 55.75], [120.5, 55.96], [120.0, 55.75], [119.75, 55.85], [119.5, 55.75], [118.97, 55.97], [118.8, 56.38], [118.5, 56.25], [117.97, 56.47], [117.8, 56.88], [117.5, 56.75], [117.25, 56.85], [117.0, 56.75], [116.75, 56.85], [116.68, 56.82], [116.53, 56.47], [116.0, 56.25], [115.47, 56.47], [115.32, 56.82], [114.97, 56.97], [114.75, 57.5]]]]}, "2020-11-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.75, 57.5], [114.97, 58.03], [115.5, 58.25], [115.75, 58.15], [115.82, 58.18], [115.97, 58.53], [116.5, 58.75], [116.75, 58.65], [116.82, 58.68], [116.85, 58.75], [116.75, 59.0], [116.97, 59.53], [117.5, 59.75], [117.75, 59.65], [118.0, 59.75], [118.25, 59.65], [118.5, 59.75], [119.03, 59.53], [119.25, 59.0], [119.15, 58.75], [119.18, 58.68], [119.25, 58.65], [119.5, 58.75], [119.75, 58.65], [120.0, 58.75], [120.25, 58.65], [120.5, 58.75], [121.03, 58.53], [121.18, 58.18], [121.53, 58.03], [121.75, 57.5], [121.65, 57.25], [121.75, 57.0], [121.65, 56.75], [121.75, 56.5], [121.53, 55.97], [121.0, 55.75], [120.5, 55.96], [120.0, 55.75], [119.75, 55.85], [119.5, 55.75], [118.97, 55.97], [118.8, 56.38], [118.5, 56.25], [117.97, 56.47], [117.8, 56.88], [117.5, 56.75], [117.25, 56.85], [117.0, 56.75], [116.75, 56.85], [116.68, 56.82], [116.53, 56.47], [116.0, 56.25], [115.47, 56.47], [115.32, 56.82], [114.97, 56.97], [114.75, 57.5]]]]}, "2020-11-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[119.35, 57.75], [119.25, 58.0], [119.47, 58.53], [120.0, 58.75], [120.25, 58.65], [120.5, 58.75], [121.03, 58.53], [121.18, 58.18], [121.53, 58.03], [121.75, 57.5], [121.65, 57.25], [121.75, 57.0], [121.65, 56.75], [121.75, 56.5], [121.53, 55.97], [121.0, 55.75], [120.47, 55.97], [120.32, 56.32], [120.25, 56.35], [120.0, 56.25], [119.47, 56.47], [119.25, 57.0], [119.35, 57.25], [119.25, 57.5], [119.35, 57.75]]]]}, "2020-11-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[121.0, 58.25], [121.53, 58.03], [121.75, 57.5], [121.53, 56.97], [121.0, 56.75], [120.47, 56.97], [120.25, 57.5], [120.47, 58.03], [121.0, 58.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 16.288810337225556}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 11.641522330495336}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-12.365438275209385, -11.836992475622935, -14.860942887301007, -16.029740110715807, -16.66260626907689]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-7.412744513953044, -7.656571719202304, -11.581670655571145, -14.194875414069713, -16.66260626907689]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [12.016300476560872, 13.054775814993338, 10.388518026913081, 9.88901539378083, 9.812462754778409]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [15.647912374898766, 16.288810337225556, 12.850499892671507, 11.268358556601271, 9.812462754778409]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7085036276772494, 1.8601138853844812, 1.4970376046503207, 1.5897168682319534, 1.6161107744140424]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.1128793602463722, 2.2118690286041356, 1.7654085905601897, 1.945141379562601, 1.6161107744140424]}}