{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:54.080187", "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": "2010-Oct-27_to_2010-Nov-03_83.0_21.5"}, "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": 2010100001103}, "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 27 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 03 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 8}, "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": 465889.7096914895}, "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": ["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": 21.5}, "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": 83.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "83.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 77.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 85.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 14.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 22.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-10-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[81.75, 22.0], [81.97, 22.53], [82.5, 22.75], [82.75, 22.65], [83.0, 22.75], [83.53, 22.53], [83.75, 22.0], [83.65, 21.75], [83.75, 21.5], [83.53, 20.97], [83.0, 20.75], [82.47, 20.97], [82.32, 21.32], [81.97, 21.47], [81.75, 22.0]]]]}, "2010-10-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[81.75, 22.0], [81.97, 22.53], [82.5, 22.75], [82.75, 22.65], [83.0, 22.75], [83.53, 22.53], [83.75, 22.0], [83.65, 21.75], [83.75, 21.5], [83.53, 20.97], [83.0, 20.75], [82.47, 20.97], [82.32, 21.32], [81.97, 21.47], [81.75, 22.0]]]]}, "2010-10-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.47, 15.53], [79.82, 15.68], [79.97, 16.03], [80.32, 16.18], [80.47, 16.53], [81.0, 16.75], [81.53, 16.53], [81.75, 16.0], [81.53, 15.47], [81.18, 15.32], [81.15, 15.25], [81.25, 15.0], [81.15, 14.75], [81.25, 14.5], [81.03, 13.97], [80.5, 13.75], [79.97, 13.97], [79.82, 14.32], [79.47, 14.47], [79.25, 15.0], [79.47, 15.53]]], [[[81.75, 17.0], [81.97, 17.53], [82.5, 17.75], [83.03, 17.53], [83.25, 17.0], [83.03, 16.47], [82.5, 16.25], [81.97, 16.47], [81.75, 17.0]]], [[[83.0, 22.75], [83.53, 22.53], [83.75, 22.0], [83.65, 21.75], [83.75, 21.5], [83.53, 20.97], [83.0, 20.75], [82.5, 20.96], [82.0, 20.75], [81.47, 20.97], [81.25, 21.5], [81.47, 22.03], [81.82, 22.18], [81.97, 22.53], [82.5, 22.75], [82.75, 22.65], [83.0, 22.75]]]]}, "2010-10-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[76.75, 15.5], [76.97, 16.03], [77.5, 16.25], [77.75, 16.15], [77.82, 16.18], [77.85, 16.25], [77.75, 16.5], [77.97, 17.03], [78.32, 17.18], [78.43, 17.43], [78.0, 17.25], [77.47, 17.47], [77.25, 18.0], [77.47, 18.53], [77.82, 18.68], [77.96, 19.0], [77.75, 19.5], [77.85, 19.75], [77.75, 20.0], [77.85, 20.25], [77.75, 20.5], [77.97, 21.03], [78.32, 21.18], [78.47, 21.53], [79.0, 21.75], [79.25, 21.65], [79.32, 21.68], [79.47, 22.03], [80.0, 22.25], [80.25, 22.15], [80.5, 22.25], [80.75, 22.15], [81.0, 22.25], [81.25, 22.15], [81.5, 22.25], [81.75, 22.15], [82.0, 22.25], [82.53, 22.03], [82.75, 21.5], [82.53, 20.97], [82.18, 20.82], [82.03, 20.47], [81.5, 20.25], [81.25, 20.35], [81.18, 20.32], [81.15, 20.25], [81.25, 20.0], [81.15, 19.75], [81.25, 19.5], [81.03, 18.97], [80.5, 18.75], [80.75, 18.65], [81.0, 18.75], [81.25, 18.65], [81.5, 18.75], [82.03, 18.53], [82.18, 18.18], [82.25, 18.15], [82.32, 18.18], [82.35, 18.25], [82.25, 18.5], [82.38, 18.8], [81.97, 18.97], [81.75, 19.5], [81.97, 20.03], [82.5, 20.25], [83.03, 20.03], [83.25, 19.5], [83.13, 19.2], [83.25, 19.15], [83.5, 19.25], [83.75, 19.15], [83.82, 19.18], [83.97, 19.53], [84.5, 19.75], [84.75, 19.65], [85.0, 19.75], [85.53, 19.53], [85.75, 19.0], [85.65, 18.75], [85.75, 18.5], [85.53, 17.97], [85.18, 17.82], [85.15, 17.75], [85.25, 17.5], [85.15, 17.25], [85.25, 17.0], [85.03, 16.47], [84.68, 16.32], [84.53, 15.97], [84.0, 15.75], [83.75, 15.85], [83.68, 15.82], [83.53, 15.47], [83.0, 15.25], [82.75, 15.35], [82.5, 15.25], [82.0, 15.46], [81.68, 15.32], [81.53, 14.97], [81.18, 14.82], [81.15, 14.75], [81.25, 14.5], [81.03, 13.97], [80.5, 13.75], [79.97, 13.97], [79.82, 14.32], [79.75, 14.35], [79.5, 14.25], [79.0, 14.46], [78.5, 14.25], [78.25, 14.35], [78.0, 14.25], [77.47, 14.47], [77.32, 14.82], [76.97, 14.97], [76.75, 15.5]], [[80.25, 18.85], [80.18, 18.82], [80.07, 18.57], [80.5, 18.75], [80.25, 18.85]], [[79.82, 18.18], [79.93, 18.43], [79.68, 18.32], [79.65, 18.25], [79.7, 18.13], [79.82, 18.18]]]]}, "2010-10-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[76.75, 15.5], [76.97, 16.03], [77.5, 16.25], [77.75, 16.15], [77.82, 16.18], [77.85, 16.25], [77.75, 16.5], [77.85, 16.75], [77.75, 17.0], [77.85, 17.25], [77.82, 17.32], [77.47, 17.47], [77.25, 18.0], [77.47, 18.53], [77.82, 18.68], [77.96, 19.0], [77.75, 19.5], [77.85, 19.75], [77.75, 20.0], [77.85, 20.25], [77.75, 20.5], [77.97, 21.03], [78.32, 21.18], [78.47, 21.53], [79.0, 21.75], [79.25, 21.65], [79.32, 21.68], [79.47, 22.03], [80.0, 22.25], [80.25, 22.15], [80.32, 22.18], [80.47, 22.53], [81.0, 22.75], [81.5, 22.54], [82.0, 22.75], [82.25, 22.65], [82.32, 22.68], [82.47, 23.03], [83.0, 23.25], [83.53, 23.03], [83.68, 22.68], [84.03, 22.53], [84.25, 22.0], [84.15, 21.75], [84.18, 21.68], [84.53, 21.53], [84.68, 21.18], [84.75, 21.15], [85.0, 21.25], [85.53, 21.03], [85.68, 20.68], [86.03, 20.53], [86.25, 20.0], [86.15, 19.75], [86.25, 19.5], [86.03, 18.97], [85.68, 18.82], [85.65, 18.75], [85.75, 18.5], [85.53, 17.97], [85.18, 17.82], [85.15, 17.75], [85.25, 17.5], [85.15, 17.25], [85.25, 17.0], [85.03, 16.47], [84.68, 16.32], [84.53, 15.97], [84.0, 15.75], [83.75, 15.85], [83.68, 15.82], [83.53, 15.47], [83.18, 15.32], [83.03, 14.97], [82.5, 14.75], [82.25, 14.85], [82.0, 14.75], [81.75, 14.85], [81.5, 14.75], [81.25, 14.85], [81.18, 14.82], [81.15, 14.75], [81.25, 14.5], [81.03, 13.97], [80.5, 13.75], [79.97, 13.97], [79.82, 14.32], [79.75, 14.35], [79.5, 14.25], [79.0, 14.46], [78.5, 14.25], [78.25, 14.35], [78.0, 14.25], [77.47, 14.47], [77.32, 14.82], [76.97, 14.97], [76.75, 15.5]], [[82.32, 18.18], [82.35, 18.25], [82.25, 18.5], [82.15, 18.25], [82.18, 18.18], [82.25, 18.15], [82.32, 18.18]], [[82.38, 18.8], [82.25, 18.85], [82.13, 18.8], [82.25, 18.5], [82.38, 18.8]]]]}, "2010-11-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[76.75, 15.5], [76.97, 16.03], [77.5, 16.25], [77.75, 16.15], [77.82, 16.18], [77.85, 16.25], [77.75, 16.5], [77.85, 16.75], [77.75, 17.0], [77.85, 17.25], [77.82, 17.32], [77.47, 17.47], [77.25, 18.0], [77.47, 18.53], [77.82, 18.68], [77.96, 19.0], [77.75, 19.5], [77.85, 19.75], [77.75, 20.0], [77.85, 20.25], [77.75, 20.5], [77.97, 21.03], [78.32, 21.18], [78.47, 21.53], [79.0, 21.75], [79.25, 21.65], [79.32, 21.68], [79.47, 22.03], [80.0, 22.25], [80.25, 22.15], [80.32, 22.18], [80.47, 22.53], [81.0, 22.75], [81.5, 22.54], [82.0, 22.75], [82.25, 22.65], [82.32, 22.68], [82.47, 23.03], [83.0, 23.25], [83.53, 23.03], [83.68, 22.68], [84.03, 22.53], [84.25, 22.0], [84.15, 21.75], [84.18, 21.68], [84.53, 21.53], [84.68, 21.18], [84.75, 21.15], [85.0, 21.25], [85.53, 21.03], [85.68, 20.68], [86.03, 20.53], [86.25, 20.0], [86.15, 19.75], [86.25, 19.5], [86.03, 18.97], [85.68, 18.82], [85.65, 18.75], [85.75, 18.5], [85.53, 17.97], [85.18, 17.82], [85.15, 17.75], [85.25, 17.5], [85.15, 17.25], [85.25, 17.0], [85.03, 16.47], [84.68, 16.32], [84.53, 15.97], [84.0, 15.75], [83.75, 15.85], [83.68, 15.82], [83.53, 15.47], [83.18, 15.32], [83.03, 14.97], [82.5, 14.75], [82.25, 14.85], [82.0, 14.75], [81.75, 14.85], [81.5, 14.75], [81.25, 14.85], [81.18, 14.82], [81.03, 14.47], [80.5, 14.25], [80.25, 14.35], [80.0, 14.25], [79.75, 14.35], [79.5, 14.25], [79.0, 14.46], [78.5, 14.25], [78.25, 14.35], [78.0, 14.25], [77.47, 14.47], [77.32, 14.82], [76.97, 14.97], [76.75, 15.5]], [[82.32, 18.18], [82.35, 18.25], [82.25, 18.5], [82.15, 18.25], [82.18, 18.18], [82.25, 18.15], [82.32, 18.18]], [[82.38, 18.8], [82.25, 18.85], [82.13, 18.8], [82.25, 18.5], [82.38, 18.8]]]]}, "2010-11-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[76.75, 15.5], [76.97, 16.03], [77.5, 16.25], [77.75, 16.15], [77.88, 16.2], [77.75, 16.5], [77.85, 16.75], [77.75, 17.0], [77.85, 17.25], [77.75, 17.5], [77.97, 18.03], [78.32, 18.18], [78.47, 18.53], [79.0, 18.75], [79.25, 18.65], [79.32, 18.68], [79.47, 19.03], [80.0, 19.25], [80.25, 19.15], [80.32, 19.18], [80.35, 19.25], [80.32, 19.32], [79.97, 19.47], [79.75, 20.0], [79.85, 20.25], [79.75, 20.5], [79.85, 20.75], [79.75, 21.0], [79.97, 21.53], [80.32, 21.68], [80.35, 21.75], [80.25, 22.0], [80.47, 22.53], [81.0, 22.75], [81.5, 22.54], [82.0, 22.75], [82.25, 22.65], [82.32, 22.68], [82.47, 23.03], [83.0, 23.25], [83.53, 23.03], [83.68, 22.68], [84.03, 22.53], [84.25, 22.0], [84.15, 21.75], [84.18, 21.68], [84.53, 21.53], [84.68, 21.18], [84.75, 21.15], [85.0, 21.25], [85.53, 21.03], [85.68, 20.68], [86.03, 20.53], [86.25, 20.0], [86.15, 19.75], [86.25, 19.5], [86.03, 18.97], [85.68, 18.82], [85.65, 18.75], [85.75, 18.5], [85.53, 17.97], [85.0, 17.75], [84.75, 17.85], [84.68, 17.82], [84.65, 17.75], [84.75, 17.5], [84.65, 17.25], [84.75, 17.0], [84.53, 16.47], [84.0, 16.25], [83.75, 16.35], [83.68, 16.32], [83.53, 15.97], [83.18, 15.82], [83.15, 15.75], [83.25, 15.5], [83.03, 14.97], [82.5, 14.75], [82.25, 14.85], [82.0, 14.75], [81.75, 14.85], [81.5, 14.75], [80.97, 14.97], [80.75, 15.5], [80.85, 15.75], [80.82, 15.82], [80.75, 15.85], [80.5, 15.75], [80.25, 15.85], [80.0, 15.75], [79.75, 15.85], [79.5, 15.75], [79.25, 15.85], [79.13, 15.8], [79.25, 15.5], [79.03, 14.97], [78.68, 14.82], [78.53, 14.47], [78.0, 14.25], [77.47, 14.47], [77.32, 14.82], [76.97, 14.97], [76.75, 15.5]], [[82.32, 18.18], [82.35, 18.25], [82.25, 18.5], [82.15, 18.25], [82.18, 18.18], [82.25, 18.15], [82.32, 18.18]], [[82.38, 18.8], [82.25, 18.85], [82.13, 18.8], [82.25, 18.5], [82.38, 18.8]]]]}, "2010-11-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.0, 17.25], [79.53, 17.03], [79.75, 16.5], [79.53, 15.97], [79.0, 15.75], [78.47, 15.97], [78.25, 16.5], [78.47, 17.03], [79.0, 17.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.858542190713706}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.2852513938149674}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.83263450587134, 23.109107741214075, 24.75842067136466, 24.13612869513048, 23.119706541802373, 22.783547050441086, 23.127472164699498, 23.58365224023379]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.68697230344418, 23.013987811611912, 22.91654965067147, 20.15807169220858, 19.349371178766887, 18.789049848841444, 20.04489514290924, 23.58365224023379]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.209915216954869, -1.8288505107266435, -1.5749360615924275, -1.898620796037552, -2.3621192586680415, -2.645127097436649, -2.1038577528273326, -1.9926169421056557]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.4042280907977442, -1.9560712616640217, -1.7995389267518362, -3.0178218835097823, -4.053012613166345, -4.858542190713706, -3.870237176552621, -1.9926169421056557]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8400668729046137, -1.5570485063852815, -1.476376747289332, -1.6967362999767184, -2.079986420776505, -2.2704396211545563, -1.803458176383754, -1.332517168915496]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9866507076186168, -1.6542693892087301, -1.5333741106000818, -2.196911128785931, -3.3728656744316745, -4.022612695277923, -3.1812829725151492, -1.332517168915496]}}