{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:34.261403", "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": "2011-Oct-08_to_2011-Oct-10_120.0_14.0"}, "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": 2011100000467}, "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": "October 08 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 10 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 66125.68469818306}, "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": ["Philippines"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.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": ["Philippine Sea", "South China Sea", "Sulu 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": 14.0}, "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": 120.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "120.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 117.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 120.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 15.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-10-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.75, 13.5], [116.97, 14.03], [117.5, 14.25], [117.75, 14.15], [118.0, 14.25], [118.3, 14.13], [118.47, 14.53], [118.82, 14.68], [118.97, 15.03], [119.32, 15.18], [119.47, 15.53], [120.0, 15.75], [120.53, 15.53], [120.68, 15.18], [121.03, 15.03], [121.25, 14.5], [121.15, 14.25], [121.25, 14.0], [121.04, 13.5], [121.25, 13.0], [121.03, 12.47], [120.68, 12.32], [120.53, 11.97], [120.0, 11.75], [119.75, 11.85], [119.5, 11.75], [119.25, 11.85], [119.0, 11.75], [118.75, 11.85], [118.5, 11.75], [117.97, 11.97], [117.82, 12.32], [117.47, 12.47], [117.32, 12.82], [116.97, 12.97], [116.75, 13.5]]]]}, "2011-10-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.75, 13.5], [116.97, 14.03], [117.5, 14.25], [117.75, 14.15], [118.0, 14.25], [118.3, 14.13], [118.47, 14.53], [118.82, 14.68], [118.97, 15.03], [119.32, 15.18], [119.47, 15.53], [120.0, 15.75], [120.53, 15.53], [120.68, 15.18], [121.03, 15.03], [121.25, 14.5], [121.15, 14.25], [121.25, 14.0], [121.04, 13.5], [121.25, 13.0], [121.03, 12.47], [120.68, 12.32], [120.53, 11.97], [120.0, 11.75], [119.75, 11.85], [119.5, 11.75], [119.25, 11.85], [119.0, 11.75], [118.75, 11.85], [118.5, 11.75], [117.97, 11.97], [117.82, 12.32], [117.47, 12.47], [117.32, 12.82], [116.97, 12.97], [116.75, 13.5]]]]}, "2011-10-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[116.75, 13.5], [116.97, 14.03], [117.5, 14.25], [117.75, 14.15], [118.0, 14.25], [118.3, 14.13], [118.47, 14.53], [118.82, 14.68], [118.97, 15.03], [119.32, 15.18], [119.47, 15.53], [120.0, 15.75], [120.53, 15.53], [120.68, 15.18], [121.03, 15.03], [121.25, 14.5], [121.15, 14.25], [121.25, 14.0], [121.04, 13.5], [121.25, 13.0], [121.03, 12.47], [120.68, 12.32], [120.53, 11.97], [120.0, 11.75], [119.75, 11.85], [119.5, 11.75], [119.25, 11.85], [119.0, 11.75], [118.75, 11.85], [118.5, 11.75], [117.97, 11.97], [117.82, 12.32], [117.47, 12.47], [117.32, 12.82], [116.97, 12.97], [116.75, 13.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.6418110537206871}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.167940137288868}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.301320118501053, 25.99777311226461, 26.359164853422612]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.686576144817423, 25.519007780406525, 26.02266289053307]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.078857446263457, -1.3861020737631045, -1.0388608918400424]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.4686245919959902, -1.6418110537206871, -1.317496774925246]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7085917677362241, -2.198828105524745, -1.627975311269504]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.266032210210502, -2.574024465622403, -2.0197149202225027]}}