{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:21.894272", "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": "2015-Dec-11_to_2015-Dec-13_94.0_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": 2015120000269}, "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": "December 11 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 13 2015"}, "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": 57028.29974867539}, "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": ["India"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Bay-of-Bengal", "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": ["Andaman or Burma Sea", "Bay of Bengal"]}, "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": 94.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "94.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 91.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 95.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.75}, "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": {"2015-12-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.32, 14.18], [92.47, 14.53], [92.82, 14.68], [92.85, 14.75], [92.75, 15.0], [92.97, 15.53], [93.5, 15.75], [94.03, 15.53], [94.2, 15.13], [94.5, 15.25], [94.75, 15.15], [95.0, 15.25], [95.25, 15.15], [95.5, 15.25], [96.03, 15.03], [96.25, 14.5], [96.03, 13.97], [95.68, 13.82], [95.53, 13.47], [95.18, 13.32], [95.03, 12.97], [94.5, 12.75], [94.25, 12.85], [94.18, 12.82], [94.03, 12.47], [93.5, 12.25], [93.25, 12.35], [93.0, 12.25], [92.75, 12.35], [92.5, 12.25], [92.25, 12.35], [92.0, 12.25], [91.47, 12.47], [91.25, 13.0], [91.47, 13.53], [91.82, 13.68], [91.97, 14.03], [92.32, 14.18]]]]}, "2015-12-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.32, 14.18], [92.47, 14.53], [92.82, 14.68], [92.85, 14.75], [92.75, 15.0], [92.97, 15.53], [93.5, 15.75], [94.03, 15.53], [94.2, 15.13], [94.5, 15.25], [94.75, 15.15], [95.0, 15.25], [95.25, 15.15], [95.5, 15.25], [96.03, 15.03], [96.25, 14.5], [96.03, 13.97], [95.68, 13.82], [95.53, 13.47], [95.18, 13.32], [95.03, 12.97], [94.5, 12.75], [94.25, 12.85], [94.18, 12.82], [94.03, 12.47], [93.5, 12.25], [93.25, 12.35], [93.0, 12.25], [92.75, 12.35], [92.5, 12.25], [92.25, 12.35], [92.0, 12.25], [91.47, 12.47], [91.25, 13.0], [91.47, 13.53], [91.82, 13.68], [91.97, 14.03], [92.32, 14.18]]]]}, "2015-12-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.32, 14.18], [92.47, 14.53], [92.82, 14.68], [92.85, 14.75], [92.75, 15.0], [92.97, 15.53], [93.5, 15.75], [94.03, 15.53], [94.2, 15.13], [94.5, 15.25], [94.75, 15.15], [95.0, 15.25], [95.25, 15.15], [95.5, 15.25], [96.03, 15.03], [96.25, 14.5], [96.03, 13.97], [95.68, 13.82], [95.53, 13.47], [95.18, 13.32], [95.03, 12.97], [94.5, 12.75], [94.25, 12.85], [94.18, 12.82], [94.03, 12.47], [93.5, 12.25], [93.25, 12.35], [93.0, 12.25], [92.75, 12.35], [92.5, 12.25], [92.25, 12.35], [92.0, 12.25], [91.47, 12.47], [91.25, 13.0], [91.47, 13.53], [91.82, 13.68], [91.97, 14.03], [92.32, 14.18]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -1.507462961627425}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.239429758427527}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.84326530816662, 25.636091548755587, 25.840608389421845]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [25.528337191410515, 25.199746407636383, 25.588045023359825]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.1707800329967193, -1.3701873786551548, -1.1773218636307063]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.3119526767835055, -1.507462961627425, -1.3766811247622286]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.638581009328133, -1.9770456875172453, -1.7573908865251058]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.828326852873315, -2.090553845634936, -2.0551843637999894]}}