{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:01.096661", "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": "2011-Mar-11_to_2011-Mar-13_118.5_38.0"}, "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": 2011030001931}, "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": "March 11 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 13 2011"}, "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": 71326.26977190882}, "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": 38.0}, "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": 118.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "118.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 115.75}, "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": 35.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 38.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-03-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.25, 37.5], [115.47, 38.03], [115.82, 38.18], [115.97, 38.53], [116.32, 38.68], [116.47, 39.03], [117.0, 39.25], [117.25, 39.15], [117.5, 39.25], [118.03, 39.03], [118.2, 38.63], [118.5, 38.75], [119.03, 38.53], [119.25, 38.0], [119.15, 37.75], [119.18, 37.68], [119.25, 37.65], [119.5, 37.75], [119.75, 37.65], [119.82, 37.68], [119.97, 38.03], [120.5, 38.25], [120.75, 38.15], [121.0, 38.25], [121.53, 38.03], [121.75, 37.5], [121.65, 37.25], [121.75, 37.0], [121.53, 36.47], [121.0, 36.25], [120.75, 36.35], [120.68, 36.32], [120.53, 35.97], [120.18, 35.82], [120.03, 35.47], [119.5, 35.25], [118.97, 35.47], [118.82, 35.82], [118.75, 35.85], [118.5, 35.75], [117.97, 35.97], [117.82, 36.32], [117.75, 36.35], [117.5, 36.25], [117.25, 36.35], [117.0, 36.25], [116.75, 36.35], [116.5, 36.25], [115.97, 36.47], [115.82, 36.82], [115.47, 36.97], [115.25, 37.5]]]]}, "2011-03-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.25, 37.5], [115.47, 38.03], [115.82, 38.18], [115.97, 38.53], [116.32, 38.68], [116.47, 39.03], [117.0, 39.25], [117.25, 39.15], [117.5, 39.25], [118.03, 39.03], [118.2, 38.63], [118.5, 38.75], [119.03, 38.53], [119.25, 38.0], [119.15, 37.75], [119.18, 37.68], [119.25, 37.65], [119.5, 37.75], [119.75, 37.65], [119.82, 37.68], [119.97, 38.03], [120.5, 38.25], [120.75, 38.15], [121.0, 38.25], [121.53, 38.03], [121.75, 37.5], [121.65, 37.25], [121.75, 37.0], [121.53, 36.47], [121.0, 36.25], [120.75, 36.35], [120.68, 36.32], [120.53, 35.97], [120.18, 35.82], [120.03, 35.47], [119.5, 35.25], [118.97, 35.47], [118.82, 35.82], [118.75, 35.85], [118.5, 35.75], [117.97, 35.97], [117.82, 36.32], [117.75, 36.35], [117.5, 36.25], [117.25, 36.35], [117.0, 36.25], [116.75, 36.35], [116.5, 36.25], [115.97, 36.47], [115.82, 36.82], [115.47, 36.97], [115.25, 37.5]]]]}, "2011-03-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[115.25, 37.5], [115.47, 38.03], [115.82, 38.18], [115.97, 38.53], [116.32, 38.68], [116.47, 39.03], [117.0, 39.25], [117.25, 39.15], [117.5, 39.25], [118.03, 39.03], [118.2, 38.63], [118.5, 38.75], [119.03, 38.53], [119.25, 38.0], [119.15, 37.75], [119.18, 37.68], [119.25, 37.65], [119.5, 37.75], [119.75, 37.65], [119.82, 37.68], [119.97, 38.03], [120.5, 38.25], [120.75, 38.15], [121.0, 38.25], [121.53, 38.03], [121.75, 37.5], [121.65, 37.25], [121.75, 37.0], [121.53, 36.47], [121.0, 36.25], [120.75, 36.35], [120.68, 36.32], [120.53, 35.97], [120.18, 35.82], [120.03, 35.47], [119.5, 35.25], [118.97, 35.47], [118.82, 35.82], [118.75, 35.85], [118.5, 35.75], [117.97, 35.97], [117.82, 36.32], [117.75, 36.35], [117.5, 36.25], [117.25, 36.35], [117.0, 36.25], [116.75, 36.35], [116.5, 36.25], [115.97, 36.47], [115.82, 36.82], [115.47, 36.97], [115.25, 37.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.717966642661793}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.562626489560501}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.85156779609349, 14.879129194427264, 12.997935218470843]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.504224389872718, 17.055176903886604, 14.850165061082805]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.545230243789625, 8.194125439509826, 5.948523785382045]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.354783010830488, 9.717966642661793, 6.487541188583407]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3556409428356269, 2.0497973368374827, 1.4752442807528696]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.505386920046379, 2.387193947602535, 1.6450129635852755]}}