{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:01:35.591490", "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": "2024-Oct-15_to_2024-Oct-18_116.5_31.5"}, "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": 2024100001722}, "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": "October 15 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 18 2024"}, "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": 60343.57876254096}, "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"]}, "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": 31.5}, "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": 116.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "116.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 114.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 117.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 30.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 33.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[117.53, 31.47], [117.18, 31.32], [117.03, 30.97], [116.68, 30.82], [116.53, 30.47], [116.0, 30.25], [115.75, 30.35], [115.68, 30.32], [115.53, 29.97], [115.0, 29.75], [114.75, 29.85], [114.5, 29.75], [113.97, 29.97], [113.75, 30.5], [113.85, 30.75], [113.75, 31.0], [113.96, 31.5], [113.82, 31.82], [113.47, 31.97], [113.25, 32.5], [113.47, 33.03], [114.0, 33.25], [114.25, 33.15], [114.5, 33.25], [114.75, 33.15], [115.0, 33.25], [115.3, 33.13], [115.47, 33.53], [116.0, 33.75], [116.25, 33.65], [116.5, 33.75], [116.75, 33.65], [117.0, 33.75], [117.53, 33.53], [117.75, 33.0], [117.65, 32.75], [117.75, 32.5], [117.65, 32.25], [117.75, 32.0], [117.53, 31.47]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-10-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[113.47, 31.97], [113.25, 32.5], [113.47, 33.03], [114.0, 33.25], [114.25, 33.15], [114.5, 33.25], [114.75, 33.15], [115.0, 33.25], [115.3, 33.13], [115.47, 33.53], [116.0, 33.75], [116.25, 33.65], [116.5, 33.75], [116.75, 33.65], [117.0, 33.75], [117.53, 33.53], [117.75, 33.0], [117.65, 32.75], [117.75, 32.5], [117.65, 32.25], [117.75, 32.0], [117.53, 31.47], [117.18, 31.32], [117.03, 30.97], [116.68, 30.82], [116.53, 30.47], [116.0, 30.25], [115.75, 30.35], [115.5, 30.25], [115.25, 30.35], [115.0, 30.25], [114.75, 30.35], [114.5, 30.25], [113.97, 30.47], [113.75, 31.0], [113.96, 31.5], [113.82, 31.82], [113.47, 31.97]]]]}, "2024-10-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[113.47, 31.97], [113.25, 32.5], [113.47, 33.03], [114.0, 33.25], [114.25, 33.15], [114.5, 33.25], [114.75, 33.15], [115.0, 33.25], [115.3, 33.13], [115.47, 33.53], [116.0, 33.75], [116.25, 33.65], [116.5, 33.75], [116.75, 33.65], [117.0, 33.75], [117.53, 33.53], [117.75, 33.0], [117.65, 32.75], [117.75, 32.5], [117.65, 32.25], [117.75, 32.0], [117.53, 31.47], [117.18, 31.32], [117.03, 30.97], [116.68, 30.82], [116.53, 30.47], [116.0, 30.25], [115.75, 30.35], [115.68, 30.32], [115.53, 29.97], [115.0, 29.75], [114.75, 29.85], [114.5, 29.75], [113.97, 29.97], [113.75, 30.5], [113.85, 30.75], [113.75, 31.0], [113.96, 31.5], [113.82, 31.82], [113.47, 31.97]]]]}, "2024-10-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[113.47, 31.97], [113.25, 32.5], [113.47, 33.03], [114.0, 33.25], [114.25, 33.15], [114.5, 33.25], [114.75, 33.15], [115.0, 33.25], [115.3, 33.13], [115.47, 33.53], [116.0, 33.75], [116.25, 33.65], [116.5, 33.75], [116.75, 33.65], [117.0, 33.75], [117.53, 33.53], [117.75, 33.0], [117.65, 32.75], [117.75, 32.5], [117.65, 32.25], [117.75, 32.0], [117.53, 31.47], [117.18, 31.32], [117.03, 30.97], [116.68, 30.82], [116.53, 30.47], [116.0, 30.25], [115.75, 30.35], [115.68, 30.32], [115.53, 29.97], [115.0, 29.75], [114.75, 29.85], [114.5, 29.75], [113.97, 29.97], [113.75, 30.5], [113.85, 30.75], [113.75, 31.0], [113.96, 31.5], [113.82, 31.82], [113.47, 31.97]]]]}, "2024-10-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[113.75, 31.0], [113.97, 31.53], [114.38, 31.7], [114.25, 32.0], [114.47, 32.53], [115.0, 32.75], [115.25, 32.65], [115.5, 32.75], [115.75, 32.65], [116.0, 32.75], [116.25, 32.65], [116.5, 32.75], [116.75, 32.65], [117.0, 32.75], [117.53, 32.53], [117.75, 32.0], [117.53, 31.47], [117.18, 31.32], [117.03, 30.97], [116.68, 30.82], [116.53, 30.47], [116.0, 30.25], [115.7, 30.38], [115.53, 29.97], [115.0, 29.75], [114.75, 29.85], [114.5, 29.75], [113.97, 29.97], [113.75, 30.5], [113.85, 30.75], [113.75, 31.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.297484310390473}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.106218800955874}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.43765889727888, 21.478872857577585, 21.15797576904299, 21.063206088904224]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.418879445393884, 22.47515767415365, 22.468604024251306, 22.6468279520671]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.229278547519568, 4.25493320317319, 3.988983364733819, 3.8054669013441855]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.847838132991967, 5.297484310390473, 4.759148098043852, 4.264105377719034]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5357899282000336, 1.5654214620113311, 1.4997026787768073, 1.4519725185842225]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7440489482632358, 1.8456379970276495, 1.8354019413513465, 1.6441473461296825]}}