{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:25.689568", "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": "2012-May-31_to_2012-Jun-03_110.0_24.5"}, "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": 2012050001569}, "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": "May 31 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 03 2012"}, "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": "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": 76270.19163974727}, "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", "Vietnam"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Asia"]}, "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": ["South China 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": 24.5}, "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": 110.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "110.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 107.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 111.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 20.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 26.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-05-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[107.47, 23.03], [107.82, 23.18], [107.85, 23.25], [107.75, 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21.75], [107.25, 22.0], [107.35, 22.25], [107.25, 22.5], [107.47, 23.03], [107.82, 23.18], [107.85, 23.25], [107.75, 23.5], [107.85, 23.75], [107.75, 24.0], [107.97, 24.53], [108.32, 24.68], [108.47, 25.03], [109.0, 25.25], [109.3, 25.13], [109.47, 25.53], [109.82, 25.68], [109.85, 25.75], [109.75, 26.0], [109.97, 26.53], [110.5, 26.75], [110.75, 26.65], [111.0, 26.75], [111.25, 26.65], [111.5, 26.75], [112.03, 26.53], [112.25, 26.0], [112.15, 25.75], [112.25, 25.5], [112.15, 25.25], [112.25, 25.0], [112.03, 24.47], [111.5, 24.25], [111.25, 24.35], [111.18, 24.32], [111.15, 24.25], [111.25, 24.0], [111.03, 23.47], [110.5, 23.25], [110.25, 23.35], [110.0, 23.25], [109.75, 23.35], [109.68, 23.32], [109.53, 22.97], [109.18, 22.82], [109.04, 22.5], [109.25, 22.0], [109.15, 21.75], [109.25, 21.5], [109.15, 21.25], [109.25, 21.0], [109.03, 20.47], [108.5, 20.25], [108.25, 20.35], [108.0, 20.25], [107.47, 20.47], [107.25, 21.0], [107.35, 21.25], [107.25, 21.5], [107.35, 21.75]]]]}, 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"anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.704896365737163, -3.7005567416217926, -2.9965718736143634, -1.4650979462505234]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.318684720324484, -5.543428581003468, -4.2495426604342015, -1.5314479128128937]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7726277614903514, -1.9528599772831101, -1.6826647442864497, -1.4258925475656354]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0759118757480874, -2.2219952125354974, -2.294094929492406, -1.4553666847506292]}}