{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:05:22.779355", "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": "2016-May-15_to_2016-May-18_94.5_26.5"}, "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": 2016050000442}, "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 15 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 18 2016"}, "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": 52129.116589941405}, "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", "India"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Asia", "Tibetan-Plateau"]}, "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": 26.5}, "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": 94.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "94.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 92.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 96.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 26.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 28.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-05-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[93.97, 25.97], [93.75, 26.5], [93.97, 27.03], [94.5, 27.25], [95.03, 27.03], [95.25, 26.5], [95.03, 25.97], [94.5, 25.75], [93.97, 25.97]]], [[[92.75, 28.0], [92.97, 28.53], [93.5, 28.75], [93.75, 28.65], [94.0, 28.75], [94.53, 28.53], [94.75, 28.0], [94.53, 27.47], [94.0, 27.25], [93.75, 27.35], [93.5, 27.25], [92.97, 27.47], [92.75, 28.0]]]]}, "2016-05-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.47, 27.53], [92.88, 27.7], [92.75, 28.0], [92.97, 28.53], [93.5, 28.75], [93.75, 28.65], [94.0, 28.75], [94.25, 28.65], [94.5, 28.75], [94.75, 28.65], [95.0, 28.75], [95.25, 28.65], [95.5, 28.75], [95.75, 28.65], [95.82, 28.68], [95.97, 29.03], [96.5, 29.25], [97.03, 29.03], [97.25, 28.5], [97.03, 27.97], [96.68, 27.82], [96.53, 27.47], [96.18, 27.32], [96.03, 26.97], [95.68, 26.82], [95.53, 26.47], [95.18, 26.32], [95.03, 25.97], [94.5, 25.75], [94.25, 25.85], [94.0, 25.75], [93.5, 25.96], [93.0, 25.75], [92.47, 25.97], [92.25, 26.5], [92.35, 26.75], [92.25, 27.0], [92.47, 27.53]]]]}, "2016-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.47, 27.53], [92.88, 27.7], [92.75, 28.0], [92.97, 28.53], [93.5, 28.75], [93.75, 28.65], [94.0, 28.75], [94.25, 28.65], [94.5, 28.75], [94.75, 28.65], [95.0, 28.75], [95.25, 28.65], [95.5, 28.75], [95.75, 28.65], [95.82, 28.68], [95.97, 29.03], [96.5, 29.25], [97.03, 29.03], [97.25, 28.5], [97.03, 27.97], [96.68, 27.82], [96.53, 27.47], [96.18, 27.32], [96.03, 26.97], [95.68, 26.82], [95.53, 26.47], [95.18, 26.32], [95.03, 25.97], [94.5, 25.75], [94.25, 25.85], [94.0, 25.75], [93.5, 25.96], [93.0, 25.75], [92.47, 25.97], [92.25, 26.5], [92.35, 26.75], [92.25, 27.0], [92.47, 27.53]]]]}, "2016-05-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[92.47, 27.53], [92.88, 27.7], [92.75, 28.0], [92.97, 28.53], [93.5, 28.75], [93.75, 28.65], [94.0, 28.75], [94.25, 28.65], [94.5, 28.75], [94.75, 28.65], [95.0, 28.75], [95.25, 28.65], [95.5, 28.75], [95.75, 28.65], [95.82, 28.68], [95.97, 29.03], [96.5, 29.25], [97.03, 29.03], [97.25, 28.5], [97.03, 27.97], [96.68, 27.82], [96.53, 27.47], [96.18, 27.32], [96.03, 26.97], [95.68, 26.82], [95.53, 26.47], [95.18, 26.32], [95.03, 25.97], [94.5, 25.75], [94.25, 25.85], [94.0, 25.75], [93.5, 25.96], [93.0, 25.75], [92.47, 25.97], [92.25, 26.5], [92.35, 26.75], [92.25, 27.0], [92.47, 27.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.582088277970172}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.359096411053952}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.468108652084652, 19.39971199389379, 20.00460320227188, 19.88145697253657]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.678081102147928, 1.221916830052578, 1.9138656567605494, 1.1356314061603712]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.69798649849641, -3.618439096049201, -3.1694912339377495, -3.393744678841885]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.9601602056816887, -4.582088277970172, -4.128784632434133, -4.556924429807282]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4109350986448341, -1.7550770518525223, -1.5758985866699315, -1.7223411134296278]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.605361641855543, -2.043927167573322, -1.830299994731445, -2.3108972541081454]}}