{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:42.643813", "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": "2014-Nov-01_to_2014-Nov-04_105.0_30.0"}, "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": 2014110000061}, "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": "November 01 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 04 2014"}, "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": 56274.9566340766}, "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": []}, "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": 30.0}, "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": 105.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "105.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 104.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 106.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 27.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 31.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-11-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.75, 29.5], [103.97, 30.03], [104.32, 30.18], [104.47, 30.53], [104.82, 30.68], [104.97, 31.03], [105.32, 31.18], [105.47, 31.53], [106.0, 31.75], [106.25, 31.65], [106.5, 31.75], [107.03, 31.53], [107.25, 31.0], [107.03, 30.47], [106.68, 30.32], [106.65, 30.25], [106.75, 30.0], [106.65, 29.75], [106.75, 29.5], [106.53, 28.97], [106.18, 28.82], [106.15, 28.75], [106.25, 28.5], [106.03, 27.97], [105.5, 27.75], [104.97, 27.97], [104.82, 28.32], [104.47, 28.47], [104.32, 28.82], [103.97, 28.97], [103.75, 29.5]]]]}, "2014-11-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.75, 29.5], [103.97, 30.03], [104.32, 30.18], [104.35, 30.25], [104.25, 30.5], [104.47, 31.03], [104.82, 31.18], [104.85, 31.25], [104.75, 31.5], [104.97, 32.03], [105.5, 32.25], [105.75, 32.15], [106.0, 32.25], [106.53, 32.03], [106.68, 31.68], [107.03, 31.53], [107.25, 31.0], [107.03, 30.47], [106.68, 30.32], [106.65, 30.25], [106.75, 30.0], [106.65, 29.75], [106.75, 29.5], [106.65, 29.25], [106.75, 29.0], [106.65, 28.75], [106.75, 28.5], [106.53, 27.97], [106.18, 27.82], [106.03, 27.47], [105.5, 27.25], [104.97, 27.47], [104.75, 28.0], [104.85, 28.25], [104.82, 28.32], [104.47, 28.47], [104.32, 28.82], [103.97, 28.97], [103.75, 29.5]]]]}, "2014-11-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.75, 29.5], [103.97, 30.03], [104.32, 30.18], [104.35, 30.25], [104.25, 30.5], [104.47, 31.03], [104.82, 31.18], [104.85, 31.25], [104.75, 31.5], [104.97, 32.03], [105.5, 32.25], [105.75, 32.15], [106.0, 32.25], [106.53, 32.03], [106.68, 31.68], [107.03, 31.53], [107.25, 31.0], [107.03, 30.47], [106.68, 30.32], [106.65, 30.25], [106.75, 30.0], [106.65, 29.75], [106.75, 29.5], [106.65, 29.25], [106.75, 29.0], [106.65, 28.75], [106.75, 28.5], [106.53, 27.97], [106.18, 27.82], [106.03, 27.47], [105.5, 27.25], [104.97, 27.47], [104.75, 28.0], [104.85, 28.25], [104.82, 28.32], [104.47, 28.47], [104.32, 28.82], [103.97, 28.97], [103.75, 29.5]]]]}, "2014-11-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[103.75, 29.5], [103.97, 30.03], [104.32, 30.18], [104.35, 30.25], [104.25, 30.5], [104.47, 31.03], [104.82, 31.18], [104.85, 31.25], [104.75, 31.5], [104.97, 32.03], [105.5, 32.25], [105.75, 32.15], [106.0, 32.25], [106.53, 32.03], [106.75, 31.5], [106.53, 30.97], [106.18, 30.82], [106.04, 30.5], [106.25, 30.0], [106.15, 29.75], [106.18, 29.68], [106.53, 29.53], [106.75, 29.0], [106.65, 28.75], [106.75, 28.5], [106.53, 27.97], [106.18, 27.82], [106.03, 27.47], [105.5, 27.25], [104.97, 27.47], [104.75, 28.0], [104.85, 28.25], [104.82, 28.32], [104.47, 28.47], [104.32, 28.82], [103.97, 28.97], [103.75, 29.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.14840189016445}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.86687949779169}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.393149463096506, 12.75115304073762, 13.170708054587976, 13.180544277654292]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [12.983900685320236, 8.562260913148918, 9.838501279403658, 9.758951729811201]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.9309053143386654, -3.1702597843687332, -2.7342805599741515, -2.5680281807512073]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.353470382519845, -4.14840189016445, -3.207612625478646, -3.2385797384853845]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6185629108767772, -1.8335695161760432, -1.569134426418306, -1.394636352778731]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.867886986377678, -2.1968903171556744, -1.8205802279270744, -1.7715993089840365]}}