{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:55:15.637356", "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-Sep-27_to_2023-Oct-02_96.5_18.5"}, "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": 2023090000516}, "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": "September 27 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 02 2023"}, "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": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 88339.86055291718}, "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": ["Myanmar", "Thailand"]}, "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": 18.5}, "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": 96.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "96.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 95.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 99.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 20.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[100.03, 18.03], [100.25, 17.5], [100.15, 17.25], [100.25, 17.0], [100.03, 16.47], [99.5, 16.25], [99.25, 16.35], [99.0, 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the boundary of the event at each time step", "value": {"2023-09-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[98.75, 17.5], [98.97, 18.03], [99.5, 18.25], [100.03, 18.03], [100.25, 17.5], [100.15, 17.25], [100.25, 17.0], [100.03, 16.47], [99.5, 16.25], [98.97, 16.47], [98.75, 17.0], [98.85, 17.25], [98.75, 17.5]]]]}, "2023-09-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[94.75, 17.5], [94.85, 17.75], [94.75, 18.0], [94.97, 18.53], [95.32, 18.68], [95.35, 18.75], [95.25, 19.0], [95.47, 19.53], [96.0, 19.75], [96.53, 19.53], [96.68, 19.18], [97.0, 19.04], [97.5, 19.25], [98.03, 19.03], [98.25, 18.5], [98.15, 18.25], [98.18, 18.18], [98.53, 18.03], [98.68, 17.68], [98.75, 17.65], [98.82, 17.68], [98.97, 18.03], [99.5, 18.25], [100.03, 18.03], [100.25, 17.5], [100.15, 17.25], [100.25, 17.0], [100.03, 16.47], [99.5, 16.25], [99.25, 16.35], [99.0, 16.25], [98.75, 16.35], [98.68, 16.32], [98.65, 16.25], [98.75, 16.0], [98.53, 15.47], [98.0, 15.25], 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evolution of maximum standardized t2m anomalies.", "value": [-1.6275201093671892, -2.3755678071602966, -2.3703437928691895, -2.300758999124766, -2.258807488241978, -1.8432301200177434]}}