{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:07:10.434504", "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": "2025-Aug-08_to_2025-Aug-13_107.5_23.5"}, "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": 2025080001595}, "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": "August 08 2025"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 13 2025"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 118993.7572666518}, "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", "Viet Nam"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": []}, "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": 23.5}, "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": 107.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "107.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 103.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 109.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 22.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 25.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[109.18, 24.18], [109.25, 24.15], [109.5, 24.25], [110.03, 24.03], [110.25, 23.5], [110.03, 22.97], [109.5, 22.75], [109.25, 22.85], [109.0, 22.75], [108.75, 22.85], [108.68, 22.82], [108.65, 22.75], [108.75, 22.5], [108.53, 21.97], [108.0, 21.75], [107.7, 21.88], [107.53, 21.47], [107.0, 21.25], [106.75, 21.35], [106.5, 21.25], [105.97, 21.47], [105.82, 21.82], [105.47, 21.97], [105.32, 22.32], [105.0, 22.46], [104.5, 22.25], [103.97, 22.47], [103.82, 22.82], [103.75, 22.85], [103.5, 22.75], [102.97, 22.97], [102.75, 23.5], [102.97, 24.03], [103.5, 24.25], [103.75, 24.15], [103.82, 24.18], [103.97, 24.53], [104.5, 24.75], [104.75, 24.65], [105.0, 24.75], [105.25, 24.65], [105.5, 24.75], [105.75, 24.65], [105.82, 24.68], [105.85, 24.75], [105.75, 25.0], [105.97, 25.53], [106.5, 25.75], [107.0, 25.54], [107.5, 25.75], [107.75, 25.65], [108.0, 25.75], [108.53, 25.53], [108.75, 25.0], [108.65, 24.75], [108.68, 24.68], [109.03, 24.53], [109.18, 24.18]]]]}}, "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": {"2025-08-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[105.97, 25.53], [106.5, 25.75], [107.03, 25.53], [107.25, 25.0], [107.03, 24.47], [106.5, 24.25], [105.97, 24.47], [105.75, 25.0], [105.97, 25.53]]]]}, "2025-08-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.5, 22.75], [102.97, 22.97], [102.75, 23.5], [102.97, 24.03], [103.5, 24.25], [103.75, 24.15], [103.82, 24.18], [103.97, 24.53], [104.5, 24.75], [104.75, 24.65], [105.0, 24.75], [105.25, 24.65], [105.5, 24.75], [105.75, 24.65], [105.82, 24.68], [105.85, 24.75], [105.75, 25.0], [105.97, 25.53], [106.5, 25.75], [107.0, 25.54], [107.5, 25.75], [107.75, 25.65], [108.0, 25.75], [108.53, 25.53], [108.75, 25.0], [108.65, 24.75], [108.68, 24.68], [109.03, 24.53], [109.25, 24.0], [109.15, 23.75], [109.25, 23.5], [109.03, 22.97], [108.68, 22.82], [108.53, 22.47], [108.0, 22.25], [107.75, 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entire duration", "value": 2.8585659194271216}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 1.9915379346099067}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.794521586100302, 27.706539832221097, 27.810507177537488, 27.831293810092347, 29.00602238972988, 28.902802291570936]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.794521586100302, 30.572316741943382, 30.628924306233728, 30.559700266520224, 30.844248708089196, 30.4052724202474]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.801148233657102, 2.0740864223595583, 2.126377012476815, 1.872887264756722, 1.9958289320261902, 1.891280121702781]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [1.801148233657102, 2.595120800682082, 2.8585659194271216, 2.3136827912084073, 2.3236069096830647, 2.4378305458409955]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.1561061448738323, 1.5280525440980284, 1.5422845568396146, 1.3753479633453074, 1.4629435481939357, 1.4122281070547287]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.1561061448738323, 1.8919265091495217, 2.0912121941735444, 1.713197835150291, 1.7157076780932923, 1.7917477385133593]}}