{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:21:18.969869", "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-Aug-29_to_2020-Sep-01_117.0_35.0"}, "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": 2020080002949}, "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": "August 29 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 01 2020"}, "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": 58203.22254074782}, "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": []}, "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": 35.0}, "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": 117.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "117.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 114.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 117.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 33.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 36.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-08-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[114.35, 34.75], [114.25, 35.0], [114.35, 35.25], [114.25, 35.5], [114.47, 36.03], [115.0, 36.25], [115.25, 36.15], [115.5, 36.25], [115.75, 36.15], [115.82, 36.18], [115.97, 36.53], [116.5, 36.75], [116.75, 36.65], [117.0, 36.75], [117.25, 36.65], [117.5, 36.75], [118.03, 36.53], [118.25, 36.0], [118.15, 35.75], [118.25, 35.5], [118.15, 35.25], [118.25, 35.0], [118.03, 34.47], [117.5, 34.25], [117.25, 34.35], [117.18, 34.32], [117.03, 33.97], [116.68, 33.82], [116.53, 33.47], [116.0, 33.25], [115.75, 33.35], [115.5, 33.25], [115.25, 33.35], [115.0, 33.25], [114.47, 33.47], [114.25, 34.0], [114.35, 34.25], [114.25, 34.5], [114.35, 34.75]]]]}, "2020-08-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[113.75, 35.0], [113.97, 35.53], [114.32, 35.68], [114.47, 36.03], [115.0, 36.25], [115.25, 36.15], [115.5, 36.25], [115.75, 36.15], [115.82, 36.18], [115.97, 36.53], [116.5, 36.75], [116.75, 36.65], [117.0, 36.75], [117.25, 36.65], [117.5, 36.75], [118.03, 36.53], [118.25, 36.0], [118.15, 35.75], [118.25, 35.5], [118.15, 35.25], [118.25, 35.0], [118.03, 34.47], [117.5, 34.25], [117.25, 34.35], [117.18, 34.32], [117.03, 33.97], [116.68, 33.82], [116.53, 33.47], [116.0, 33.25], [115.75, 33.35], [115.5, 33.25], [115.25, 33.35], [115.0, 33.25], [114.47, 33.47], [114.25, 34.0], [114.35, 34.25], [114.32, 34.32], [113.97, 34.47], [113.75, 35.0]]]]}, "2020-08-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[113.75, 35.0], [113.97, 35.53], [114.32, 35.68], [114.47, 36.03], [115.0, 36.25], [115.25, 36.15], [115.5, 36.25], [115.75, 36.15], [115.82, 36.18], [115.97, 36.53], [116.5, 36.75], [116.75, 36.65], [117.0, 36.75], [117.25, 36.65], [117.5, 36.75], [118.03, 36.53], [118.25, 36.0], [118.15, 35.75], [118.25, 35.5], [118.15, 35.25], [118.25, 35.0], [118.03, 34.47], [117.5, 34.25], [117.25, 34.35], [117.18, 34.32], [117.03, 33.97], [116.68, 33.82], [116.53, 33.47], [116.0, 33.25], [115.75, 33.35], [115.5, 33.25], [115.25, 33.35], [115.0, 33.25], [114.47, 33.47], [114.25, 34.0], [114.35, 34.25], [114.32, 34.32], [113.97, 34.47], [113.75, 35.0]]]]}, "2020-09-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[117.0, 35.75], [117.53, 35.53], [117.75, 35.0], [117.53, 34.47], [117.0, 34.25], [116.57, 34.43], [116.75, 34.0], [116.53, 33.47], [116.0, 33.25], [115.47, 33.47], [115.25, 34.0], [115.47, 34.53], [116.0, 34.75], [116.43, 34.57], [116.25, 35.0], [116.47, 35.53], [117.0, 35.75]]], [[[115.53, 36.03], [115.75, 35.5], [115.53, 34.97], [115.18, 34.82], [115.03, 34.47], [114.5, 34.25], [113.97, 34.47], [113.75, 35.0], [113.97, 35.53], [114.32, 35.68], [114.47, 36.03], [115.0, 36.25], [115.53, 36.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 4.130962938366622}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 3.5041655263733795}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.55720477650982, 27.995525979903846, 27.73394304936187, 27.419156719615216]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.093183367217193, 28.533345671019617, 28.46360222732352, 27.769830887167814]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.15377909234591, 3.743862405093558, 3.646022745250355, 3.237354852340829]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.4130564183077468, 4.130962938366622, 4.10025002330724, 3.6924538596104526]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.361387725036896, 1.584524049508269, 1.51651893032651, 1.2752368175009958]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5083680728381639, 1.8901144622719506, 1.6838172969612493, 1.336899886293669]}}