{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:05:45.728333", "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-Jul-07_to_2016-Jul-12_76.5_20.5"}, "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": 2016070000302}, "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": "July 07 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 12 2016"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 252851.52535528457}, "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": ["S.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": 20.5}, "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": 76.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "76.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 74.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 82.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 17.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-07-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[77.25, 22.0], [77.47, 22.53], [78.0, 22.75], [78.53, 22.53], [78.68, 22.18], [78.75, 22.15], [79.0, 22.25], [79.53, 22.03], [79.75, 21.5], [79.53, 20.97], [79.0, 20.75], [78.75, 20.85], [78.5, 20.75], [77.97, 20.97], [77.82, 21.32], [77.47, 21.47], [77.25, 22.0]]]]}, "2016-07-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[75.85, 19.75], [75.75, 20.0], [75.85, 20.25], [75.75, 20.5], [75.97, 21.03], [76.32, 21.18], [76.35, 21.25], [76.25, 21.5], [76.47, 22.03], [77.0, 22.25], [77.25, 22.15], [77.32, 22.18], [77.47, 22.53], [78.0, 22.75], [78.53, 22.53], [78.68, 22.18], [78.75, 22.15], [79.0, 22.25], [79.53, 22.03], [79.68, 21.68], [80.03, 21.53], [80.18, 21.18], [80.25, 21.15], [80.5, 21.25], [80.75, 21.15], [81.0, 21.25], [81.25, 21.15], [81.32, 21.18], [81.47, 21.53], [82.0, 21.75], [82.53, 21.53], [82.75, 21.0], [82.53, 20.47], [82.18, 20.32], [82.03, 19.97], [81.68, 19.82], [81.53, 19.47], [81.0, 19.25], [80.75, 19.35], [80.5, 19.25], [80.25, 19.35], [80.18, 19.32], [80.03, 18.97], [79.68, 18.82], [79.53, 18.47], [79.0, 18.25], [78.75, 18.35], [78.5, 18.25], [78.25, 18.35], [78.0, 18.25], [77.75, 18.35], [77.5, 18.25], [77.25, 18.35], [77.0, 18.25], [76.75, 18.35], [76.5, 18.25], [75.97, 18.47], [75.75, 19.0], [75.85, 19.25], [75.75, 19.5], [75.85, 19.75]]]]}, "2016-07-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[74.82, 20.32], [74.47, 20.47], [74.25, 21.0], [74.47, 21.53], [74.88, 21.7], [74.75, 22.0], [74.97, 22.53], [75.5, 22.75], [75.75, 22.65], [76.0, 22.75], [76.25, 22.65], [76.5, 22.75], [76.75, 22.65], [77.0, 22.75], [77.5, 22.54], [78.0, 22.75], [78.53, 22.53], [78.68, 22.18], [78.75, 22.15], [79.0, 22.25], [79.53, 22.03], [79.68, 21.68], [80.03, 21.53], [80.18, 21.18], [80.25, 21.15], [80.5, 21.25], [80.75, 21.15], [81.0, 21.25], [81.25, 21.15], [81.32, 21.18], [81.47, 21.53], [82.0, 21.75], [82.53, 21.53], [82.75, 21.0], [82.53, 20.47], [82.18, 20.32], [82.03, 19.97], [81.68, 19.82], [81.53, 19.47], [81.18, 19.32], [81.03, 18.97], [80.68, 18.82], [80.53, 18.47], [80.18, 18.32], [80.03, 17.97], [79.5, 17.75], [79.25, 17.85], [79.18, 17.82], [79.15, 17.75], [79.25, 17.5], [79.03, 16.97], [78.5, 16.75], [78.0, 16.96], [77.5, 16.75], [77.25, 16.85], [77.0, 16.75], [76.75, 16.85], [76.5, 16.75], [75.97, 16.97], [75.82, 17.32], [75.47, 17.47], [75.25, 18.0], [75.35, 18.25], [75.25, 18.5], [75.35, 18.75], [75.32, 18.82], [75.25, 18.85], [75.0, 18.75], [74.47, 18.97], [74.25, 19.5], [74.47, 20.03], [74.82, 20.18], [74.85, 20.25], [74.82, 20.32]]]]}, "2016-07-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[74.82, 20.32], [74.47, 20.47], [74.25, 21.0], [74.47, 21.53], [74.88, 21.7], [74.75, 22.0], [74.97, 22.53], [75.5, 22.75], [75.75, 22.65], [76.0, 22.75], [76.25, 22.65], [76.5, 22.75], [76.75, 22.65], [77.0, 22.75], [77.53, 22.53], [77.68, 22.18], [77.75, 22.15], [78.0, 22.25], [78.53, 22.03], [78.68, 21.68], [78.75, 21.65], [79.0, 21.75], [79.25, 21.65], [79.5, 21.75], [80.03, 21.53], [80.18, 21.18], [80.25, 21.15], [80.5, 21.25], [80.75, 21.15], [81.0, 21.25], [81.25, 21.15], [81.32, 21.18], [81.47, 21.53], [82.0, 21.75], [82.53, 21.53], [82.75, 21.0], [82.53, 20.47], [82.18, 20.32], [82.03, 19.97], [81.68, 19.82], [81.53, 19.47], [81.18, 19.32], [81.03, 18.97], [80.68, 18.82], [80.53, 18.47], [80.18, 18.32], [80.03, 17.97], [79.5, 17.75], [79.25, 17.85], [79.18, 17.82], [79.15, 17.75], [79.25, 17.5], [79.03, 16.97], [78.5, 16.75], [78.0, 16.96], [77.5, 16.75], [77.25, 16.85], [77.0, 16.75], [76.75, 16.85], [76.5, 16.75], [75.97, 16.97], [75.82, 17.32], [75.47, 17.47], [75.25, 18.0], [75.35, 18.25], [75.25, 18.5], [75.35, 18.75], [75.32, 18.82], [75.25, 18.85], [75.0, 18.75], [74.47, 18.97], [74.25, 19.5], [74.47, 20.03], [74.82, 20.18], [74.85, 20.25], [74.82, 20.32]]]]}, "2016-07-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[74.82, 20.32], [74.47, 20.47], [74.25, 21.0], [74.47, 21.53], [74.88, 21.7], [74.75, 22.0], [74.97, 22.53], [75.5, 22.75], [75.75, 22.65], [76.0, 22.75], [76.25, 22.65], [76.5, 22.75], [76.75, 22.65], [77.0, 22.75], [77.53, 22.53], [77.68, 22.18], [78.03, 22.03], [78.18, 21.68], [78.25, 21.65], [78.5, 21.75], [78.75, 21.65], [79.0, 21.75], [79.25, 21.65], [79.5, 21.75], [80.03, 21.53], [80.18, 21.18], [80.25, 21.15], [80.5, 21.25], [80.75, 21.15], [81.0, 21.25], [81.53, 21.03], [81.75, 20.5], [81.53, 19.97], [81.18, 19.82], [81.15, 19.75], [81.25, 19.5], [81.03, 18.97], [80.68, 18.82], [80.53, 18.47], [80.18, 18.32], [80.03, 17.97], [79.5, 17.75], [79.25, 17.85], [79.18, 17.82], [79.15, 17.75], [79.25, 17.5], [79.03, 16.97], [78.5, 16.75], [78.0, 16.96], [77.5, 16.75], [77.25, 16.85], [77.0, 16.75], [76.75, 16.85], [76.5, 16.75], [75.97, 16.97], [75.82, 17.32], [75.47, 17.47], [75.25, 18.0], [75.35, 18.25], [75.25, 18.5], [75.35, 18.75], [75.32, 18.82], [75.25, 18.85], [75.0, 18.75], [74.47, 18.97], [74.25, 19.5], [74.47, 20.03], [74.82, 20.18], [74.85, 20.25], [74.82, 20.32]]]]}, "2016-07-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[74.25, 21.0], [74.47, 21.53], [74.88, 21.7], [74.75, 22.0], [74.97, 22.53], [75.5, 22.75], [75.75, 22.65], [76.0, 22.75], [76.25, 22.65], [76.5, 22.75], [76.75, 22.65], [77.0, 22.75], [77.53, 22.53], [77.68, 22.18], [78.03, 22.03], [78.18, 21.68], [78.25, 21.65], [78.5, 21.75], [78.75, 21.65], [79.0, 21.75], [79.53, 21.53], [79.75, 21.0], [79.53, 20.47], [79.0, 20.25], [78.75, 20.35], [78.68, 20.32], [78.53, 19.97], [78.18, 19.82], [78.03, 19.47], [77.5, 19.25], [77.25, 19.35], [77.0, 19.25], [76.75, 19.35], [76.5, 19.25], [76.25, 19.35], [76.0, 19.25], [75.47, 19.47], [75.32, 19.82], [74.97, 19.97], [74.82, 20.32], [74.47, 20.47], [74.25, 21.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.423975338802279}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.614960743774502}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.486973431525428, 24.903567709904735, 24.59822708629855, 24.747352960546664, 24.63459936767032, 24.415682694353166]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.70246054544424, 23.256773822786784, 22.671278812796857, 23.070561082637482, 23.131923747351266, 22.516937262768977]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.3753359045146945, -2.5451157948480727, -2.675724820531579, -2.502993949500872, -2.6187622729243394, -2.904449663272803]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.53823426725387, -3.0588808512715104, -3.2261853146956128, -3.0453286240816624, -3.313025329697439, -3.423975338802279]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3344009061772821, -1.5528576860350716, -1.6833438113686023, -1.5774950475217187, -1.625060247636491, -1.7650989678870517]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3997253270722398, -1.8638688851387462, -1.9258809075143426, -1.8348011771157333, -1.8935818704169196, -1.9776317450315126]}}