{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:34:58.918616", "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-Apr-10_to_2023-Apr-13_113.0_30.5"}, "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": 2023040001694}, "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 10 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 13 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": 98525.96726242654}, "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": 30.5}, "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": 113.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "113.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 112.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 118.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 29.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 31.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-04-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[112.47, 31.03], [112.82, 31.18], [112.97, 31.53], [113.32, 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[114.75, 32.15], [115.0, 32.25], [115.25, 32.15], [115.5, 32.25], [116.03, 32.03], [116.18, 31.68], [116.25, 31.65], [116.5, 31.75], [116.75, 31.65], [117.0, 31.75], [117.25, 31.65], [117.5, 31.75], [118.03, 31.53], [118.18, 31.18], [118.53, 31.03], [118.75, 30.5], [118.65, 30.25], [118.75, 30.0], [118.53, 29.47], [118.0, 29.25], [117.75, 29.35], [117.68, 29.32], [117.53, 28.97], [117.0, 28.75], [116.75, 28.85], [116.5, 28.75], [116.25, 28.85], [116.0, 28.75], [115.47, 28.97], [115.32, 29.32], [115.25, 29.35], [115.0, 29.25], [114.75, 29.35], [114.5, 29.25], [114.0, 29.46], [113.5, 29.25], [113.25, 29.35], [113.0, 29.25], [112.47, 29.47], [112.25, 30.0], [112.35, 30.25], [112.25, 30.5], [112.47, 31.03]]]]}, "2023-04-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[112.47, 31.03], [112.82, 31.18], [112.97, 31.53], [113.32, 31.68], [113.47, 32.03], [114.0, 32.25], [114.25, 32.15], [114.5, 32.25], [114.75, 32.15], [115.0, 32.25], [115.25, 32.15], [115.5, 32.25], 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"value": 6.928445412413396}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.605492227057105}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.285928828264787, 21.587402025013716, 22.51921721829393, 21.817453746741307]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.328659645174696, 23.135691025292374, 24.4349783664573, 21.817453746741307]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.339061910968226, 5.40739442979424, 6.095020365310688, 4.680491305689145]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.552388235495243, 6.22180865985996, 6.928445412413396, 4.680491305689145]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4917228483252858, 1.5453966692837338, 1.7282123621585963, 1.2666005181458606]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7870773623970375, 1.886500666879926, 2.023421045721317, 1.2666005181458606]}}