{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:16.984870", "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": "2012-Apr-22_to_2012-Apr-24_109.0_27.0"}, "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": 2012040002509}, "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": "April 22 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 24 2012"}, "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": 82757.5506080077}, "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": 27.0}, "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": 109.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "109.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 107.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 110.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 28.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-04-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[106.85, 27.75], [106.75, 28.0], [106.97, 28.53], [107.5, 28.75], [107.75, 28.65], [108.0, 28.75], [108.25, 28.65], [108.32, 28.68], [108.47, 29.03], [109.0, 29.25], [109.53, 29.03], [109.68, 28.68], [110.03, 28.53], [110.18, 28.18], [110.53, 28.03], [110.75, 27.5], [110.65, 27.25], [110.75, 27.0], [110.65, 26.75], [110.75, 26.5], [110.53, 25.97], [110.18, 25.82], [110.15, 25.75], [110.25, 25.5], [110.15, 25.25], [110.25, 25.0], [110.03, 24.47], [109.68, 24.32], [109.53, 23.97], [109.0, 23.75], [108.47, 23.97], [108.32, 24.32], [107.97, 24.47], [107.75, 25.0], [107.97, 25.53], [108.32, 25.68], [108.35, 25.75], [108.32, 25.82], [107.97, 25.97], [107.82, 26.32], [107.75, 26.35], [107.5, 26.25], [106.97, 26.47], [106.75, 27.0], [106.85, 27.25], [106.75, 27.5], [106.85, 27.75]]]]}, "2012-04-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[106.85, 27.75], [106.75, 28.0], [106.97, 28.53], [107.5, 28.75], [107.75, 28.65], [108.0, 28.75], [108.25, 28.65], [108.32, 28.68], [108.47, 29.03], [109.0, 29.25], [109.53, 29.03], [109.68, 28.68], [110.03, 28.53], [110.18, 28.18], [110.53, 28.03], [110.75, 27.5], [110.65, 27.25], [110.75, 27.0], [110.65, 26.75], [110.75, 26.5], [110.53, 25.97], [110.18, 25.82], [110.15, 25.75], [110.25, 25.5], [110.15, 25.25], [110.25, 25.0], [110.03, 24.47], [109.68, 24.32], [109.53, 23.97], [109.0, 23.75], [108.47, 23.97], [108.32, 24.32], [107.97, 24.47], [107.75, 25.0], [107.97, 25.53], [108.32, 25.68], [108.35, 25.75], [108.32, 25.82], [107.97, 25.97], [107.82, 26.32], [107.75, 26.35], [107.5, 26.25], [106.97, 26.47], [106.75, 27.0], [106.85, 27.25], [106.75, 27.5], [106.85, 27.75]]]]}, "2012-04-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[106.85, 27.75], [106.75, 28.0], [106.97, 28.53], [107.5, 28.75], [107.75, 28.65], [108.0, 28.75], [108.25, 28.65], [108.32, 28.68], [108.47, 29.03], [109.0, 29.25], [109.53, 29.03], [109.68, 28.68], [110.03, 28.53], [110.18, 28.18], [110.53, 28.03], [110.75, 27.5], [110.65, 27.25], [110.75, 27.0], [110.65, 26.75], [110.75, 26.5], [110.53, 25.97], [110.18, 25.82], [110.15, 25.75], [110.25, 25.5], [110.15, 25.25], [110.25, 25.0], [110.03, 24.47], [109.68, 24.32], [109.53, 23.97], [109.0, 23.75], [108.47, 23.97], [108.32, 24.32], [107.97, 24.47], [107.75, 25.0], [107.97, 25.53], [108.32, 25.68], [108.35, 25.75], [108.32, 25.82], [107.97, 25.97], [107.82, 26.32], [107.75, 26.35], [107.5, 26.25], [106.97, 26.47], [106.75, 27.0], [106.85, 27.25], [106.75, 27.5], [106.85, 27.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.788328521419032}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.232236067510644}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.66379549218499, 24.075286210851402, 24.57787851636573]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.175743042296517, 26.90837959237865, 28.969326615518014]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.8423812360142335, 6.256673772420597, 6.597653194097101]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.779131853196361, 7.620896649652195, 7.788328521419032]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5940107380790702, 1.7055291209342107, 1.8698859808871175]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8175541767463126, 1.945947841231289, 2.3013906907375112]}}