{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:18:50.368102", "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": "2022-Mar-01_to_2022-Mar-05_116.5_25.0"}, "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": 2022030001294}, "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 01 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 05 2022"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 131532.6174612462}, "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": 25.0}, "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": 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": 110.0}, "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": 23.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 26.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[110.25, 25.15], [110.5, 25.25], [110.75, 25.15], [110.82, 25.18], [110.97, 25.53], [111.5, 25.75], [111.75, 25.65], 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[109.25, 24.0], [109.35, 24.25], [109.25, 24.5], [109.47, 25.03], [110.0, 25.25], [110.25, 25.15]]]]}}, "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": {"2022-03-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.5, 24.25], [115.97, 24.47], [115.75, 25.0], [115.97, 25.53], [116.5, 25.75], [116.75, 25.65], [117.0, 25.75], [117.53, 25.53], [117.75, 25.0], [117.53, 24.47], [117.0, 24.25], [116.75, 24.35], [116.5, 24.25]]]]}, "2022-03-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.5, 24.25], [115.97, 24.47], [115.75, 25.0], [115.97, 25.53], [116.5, 25.75], [116.75, 25.65], [117.0, 25.75], [117.53, 25.53], [117.75, 25.0], [117.53, 24.47], [117.0, 24.25], [116.75, 24.35], [116.5, 24.25]]]]}, "2022-03-03T11:30:00.000000000": {"type": "MultiPolygon", 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{"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.878798228101312}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [19.732738056114727, 19.27750397023641, 20.023122394705638, 19.87809081795416, 19.79805419557829]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [20.45944783417582, 20.263203745400176, 22.41321222196069, 22.529322132142056, 23.82353144082856]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.752627354705595, 5.2338232042763195, 7.060788724950827, 6.947388461092189, 6.746138600270311]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.040217369560651, 5.800864508060101, 8.680957474409297, 8.014960637848446, 7.398035443438403]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4091129752293226, 1.3308130041082893, 1.5926315408426392, 1.609442538998701, 1.579272428793142]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.415809136831544, 1.4209578984437727, 1.840798934912386, 1.77280264825248, 1.7914629129380175]}}