{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:58:27.403068", "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-Apr-01_to_2024-Apr-04_125.0_39.5"}, "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": 2024040000864}, "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 01 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 04 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": 105796.63806219805}, "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", "Korea, Democratic People's Republic of", "Korea, Republic of"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia", "Asia", "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": ["Yellow Sea"]}, "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": 39.5}, "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": 125.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "125.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 124.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 127.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 34.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 40.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[123.85, 36.25], [123.75, 36.5], [123.97, 37.03], [124.32, 37.18], [124.46, 37.5], [124.25, 38.0], [124.35, 38.25], 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"value": ["E.Asia"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-04-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.25, 35.5], [123.47, 36.03], [123.82, 36.18], [123.85, 36.25], [123.75, 36.5], [123.97, 37.03], [124.32, 37.18], [124.47, 37.53], [125.0, 37.75], [125.53, 37.53], [125.68, 37.18], [126.03, 37.03], [126.25, 36.5], [126.15, 36.25], [126.25, 36.0], [126.15, 35.75], [126.25, 35.5], [126.15, 35.25], [126.25, 35.0], [126.03, 34.47], [125.68, 34.32], [125.53, 33.97], [125.18, 33.82], [125.03, 33.47], [124.5, 33.25], [123.97, 33.47], [123.82, 33.82], [123.47, 33.97], [123.25, 34.5], [123.46, 35.0], [123.25, 35.5]]]]}, "2024-04-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[123.25, 35.5], [123.47, 36.03], [123.82, 36.18], [123.85, 36.25], [123.75, 36.5], [123.97, 37.03], [124.32, 37.18], [124.46, 37.5], [124.25, 38.0], [124.35, 38.25], 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3.415670683008979}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [10.626703857395796, 11.458695994215702, 11.318161740203664, 11.604828444912812]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.930344100550997, 15.907780727779766, 15.073127319620994, 15.069173115489036]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [2.321790969511767, 3.647643765341594, 3.36029347017313, 3.8995191811925336]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [3.1678764008822213, 6.833340411518293, 6.31478740033225, 6.006201057241583]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.7364845264976814, 2.0903529000427863, 1.7740600548613927, 1.7369566830656575]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.1898302296048424, 2.9175714243266433, 2.925312660057778, 2.372547716211266]}}