{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:58.372708", "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": "2010-Jun-25_to_2010-Jun-28_113.0_23.0"}, "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": 2010060000930}, "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": "June 25 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 28 2010"}, "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": 93764.51373736907}, "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"]}, "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": 23.0}, "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": 113.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "113.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 109.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 115.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 24.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-06-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[109.47, 24.53], [110.0, 24.75], [110.25, 24.65], [110.5, 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24.0], [109.47, 24.53]]]]}, "2010-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[109.47, 24.53], [110.0, 24.75], [110.25, 24.65], [110.5, 24.75], [110.75, 24.65], [111.0, 24.75], [111.25, 24.65], [111.5, 24.75], [112.03, 24.53], [112.18, 24.18], [112.25, 24.15], [112.5, 24.25], [112.75, 24.15], [113.0, 24.25], [113.25, 24.15], [113.5, 24.25], [113.75, 24.15], [113.82, 24.18], [113.97, 24.53], [114.5, 24.75], [114.75, 24.65], [115.0, 24.75], [115.53, 24.53], [115.75, 24.0], [115.65, 23.75], [115.68, 23.68], [116.03, 23.53], [116.25, 23.0], [116.03, 22.47], [115.5, 22.25], [115.25, 22.35], [115.0, 22.25], [114.75, 22.35], [114.68, 22.32], [114.53, 21.97], [114.0, 21.75], [113.75, 21.85], [113.5, 21.75], [113.25, 21.85], [113.18, 21.82], [113.03, 21.47], [112.5, 21.25], [112.25, 21.35], [112.0, 21.25], [111.75, 21.35], [111.5, 21.25], [110.97, 21.47], [110.75, 22.0], [110.97, 22.53], [111.32, 22.68], [111.35, 22.75], [111.32, 22.82], [111.25, 22.85], [111.0, 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23.47], [110.75, 24.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.905384952960503}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.639817143430868}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.932812098665067, 25.375969981433286, 25.670328846914742, 25.60271964048121]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.96332720017358, 24.166818698485656, 24.251903209657428, 24.81189146328211]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.872793933452132, -2.6507842179181855, -2.425773375610966, -2.70548553924368]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.905384952960503, -3.339410489052284, -3.196849540450671, -3.3518876373361763]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.970954433350481, -1.8667127546568667, -1.712391916228111, -1.9078437892696007]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.6071794349443103, -2.2960800183665198, -2.096542349203434, -2.219170263754619]}}