{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:40.163286", "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": "2012-Jun-17_to_2012-Jun-24_81.5_18.0"}, "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": 2012060000831}, "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": "June 17 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 24 2012"}, "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": 415308.18837318715}, "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.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": 18.0}, "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": 81.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "81.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 78.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 89.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 15.25}, "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": {"2012-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[86.47, 17.53], [87.0, 17.75], [87.25, 17.65], [87.5, 17.75], [87.75, 17.65], [88.0, 17.75], [88.25, 17.65], [88.5, 17.75], [88.75, 17.65], [89.0, 17.75], [89.53, 17.53], [89.68, 17.18], [90.03, 17.03], [90.25, 16.5], [90.15, 16.25], [90.25, 16.0], [90.03, 15.47], [89.5, 15.25], [88.97, 15.47], [88.82, 15.82], [88.75, 15.85], [88.5, 15.75], [88.25, 15.85], [88.0, 15.75], [87.75, 15.85], [87.5, 15.75], [86.97, 15.97], [86.82, 16.32], [86.47, 16.47], [86.25, 17.0], [86.47, 17.53]]], [[[79.75, 18.15], [80.0, 18.25], [80.25, 18.15], [80.5, 18.25], [80.75, 18.15], [80.82, 18.18], [80.97, 18.53], [81.32, 18.68], [81.47, 19.03], [82.0, 19.25], [82.53, 19.03], [82.75, 18.5], [82.65, 18.25], [82.68, 18.18], [83.03, 18.03], [83.25, 17.5], [83.03, 16.97], [82.5, 16.75], [82.25, 16.85], [82.0, 16.75], [81.75, 16.85], [81.68, 16.82], [81.53, 16.47], [81.0, 16.25], [80.75, 16.35], [80.5, 16.25], [80.25, 16.35], [80.0, 16.25], [79.75, 16.35], [79.5, 16.25], [79.25, 16.35], [79.0, 16.25], [78.47, 16.47], [78.25, 17.0], [78.47, 17.53], [78.82, 17.68], [78.97, 18.03], [79.5, 18.25], [79.75, 18.15]]]]}, "2012-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.38, 18.2], [79.25, 18.5], [79.35, 18.75], [79.25, 19.0], [79.35, 19.25], [79.25, 19.5], [79.47, 20.03], [79.82, 20.18], [79.97, 20.53], [80.5, 20.75], [81.03, 20.53], [81.25, 20.0], [81.15, 19.75], [81.25, 19.5], [81.15, 19.25], [81.18, 19.18], [81.25, 19.15], [81.5, 19.25], [81.75, 19.15], [82.0, 19.25], [82.53, 19.03], [82.68, 18.68], [83.0, 18.54], [83.5, 18.75], [83.75, 18.65], [84.0, 18.75], [84.25, 18.65], [84.5, 18.75], [85.03, 18.53], [85.25, 18.0], [85.15, 17.75], [85.18, 17.68], [85.25, 17.65], [85.5, 17.75], [85.75, 17.65], [86.0, 17.75], [86.25, 17.65], [86.5, 17.75], [86.75, 17.65], [87.0, 17.75], [87.25, 17.65], [87.32, 17.68], [87.35, 17.75], [87.25, 18.0], [87.47, 18.53], [88.0, 18.75], [88.25, 18.65], [88.5, 18.75], [88.75, 18.65], [88.82, 18.68], [88.97, 19.03], [89.5, 19.25], [90.03, 19.03], [90.25, 18.5], [90.15, 18.25], [90.25, 18.0], [90.15, 17.75], [90.25, 17.5], [90.15, 17.25], [90.25, 17.0], [90.15, 16.75], [90.25, 16.5], [90.15, 16.25], [90.25, 16.0], [90.03, 15.47], [89.68, 15.32], [89.53, 14.97], [89.0, 14.75], [88.75, 14.85], [88.5, 14.75], [88.25, 14.85], [88.0, 14.75], [87.47, 14.97], [87.25, 15.5], [87.35, 15.75], [87.32, 15.82], [87.25, 15.85], [87.0, 15.75], [86.75, 15.85], [86.5, 15.75], [86.25, 15.85], [86.0, 15.75], [85.75, 15.85], [85.5, 15.75], [85.25, 15.85], [85.0, 15.75], [84.75, 15.85], [84.5, 15.75], [84.25, 15.85], [84.0, 15.75], [83.47, 15.97], [83.32, 16.32], [83.25, 16.35], [83.0, 16.25], [82.75, 16.35], [82.68, 16.32], [82.53, 15.97], [82.0, 15.75], [81.47, 15.97], [81.32, 16.32], [81.25, 16.35], [81.0, 16.25], [80.75, 16.35], [80.5, 16.25], [80.25, 16.35], [80.0, 16.25], [79.75, 16.35], [79.5, 16.25], [79.25, 16.35], [79.0, 16.25], [78.47, 16.47], [78.25, 17.0], [78.47, 17.53], [78.82, 17.68], [78.97, 18.03], [79.38, 18.2]]]]}, "2012-06-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.38, 18.2], [79.25, 18.5], [79.35, 18.75], [79.25, 19.0], [79.35, 19.25], [79.25, 19.5], [79.47, 20.03], [79.82, 20.18], [79.97, 20.53], [80.32, 20.68], [80.47, 21.03], [81.0, 21.25], [81.25, 21.15], [81.5, 21.25], [82.03, 21.03], [82.25, 20.5], [82.15, 20.25], [82.18, 20.18], [82.25, 20.15], [82.32, 20.18], [82.47, 20.53], [82.82, 20.68], [82.97, 21.03], [83.5, 21.25], [83.75, 21.15], [84.0, 21.25], [84.53, 21.03], [84.75, 20.5], [84.65, 20.25], [84.75, 20.0], [84.53, 19.47], [84.0, 19.25], [83.75, 19.35], [83.68, 19.32], [83.65, 19.25], [83.75, 19.0], [83.65, 18.75], [83.68, 18.68], [83.75, 18.65], [84.0, 18.75], [84.25, 18.65], [84.5, 18.75], [85.03, 18.53], [85.25, 18.0], [85.15, 17.75], [85.18, 17.68], [85.25, 17.65], [85.5, 17.75], [85.75, 17.65], [86.0, 17.75], [86.25, 17.65], [86.5, 17.75], [86.75, 17.65], [87.0, 17.75], [87.25, 17.65], [87.32, 17.68], [87.35, 17.75], [87.25, 18.0], [87.47, 18.53], [88.0, 18.75], [88.25, 18.65], [88.5, 18.75], [88.75, 18.65], [88.82, 18.68], [88.97, 19.03], [89.5, 19.25], [90.03, 19.03], [90.25, 18.5], [90.15, 18.25], [90.25, 18.0], [90.15, 17.75], [90.25, 17.5], [90.15, 17.25], [90.25, 17.0], [90.15, 16.75], [90.25, 16.5], [90.15, 16.25], [90.25, 16.0], [90.03, 15.47], [89.68, 15.32], [89.53, 14.97], [89.0, 14.75], [88.75, 14.85], [88.5, 14.75], [88.25, 14.85], [88.0, 14.75], [87.47, 14.97], [87.25, 15.5], [87.35, 15.75], [87.32, 15.82], [87.25, 15.85], [87.0, 15.75], [86.75, 15.85], [86.5, 15.75], [86.25, 15.85], [86.0, 15.75], [85.75, 15.85], [85.5, 15.75], [85.25, 15.85], [85.0, 15.75], [84.75, 15.85], [84.5, 15.75], [84.25, 15.85], [84.0, 15.75], [83.47, 15.97], [83.32, 16.32], [83.25, 16.35], [83.0, 16.25], [82.75, 16.35], [82.68, 16.32], [82.53, 15.97], [82.0, 15.75], [81.47, 15.97], [81.32, 16.32], [81.25, 16.35], [81.0, 16.25], [80.75, 16.35], [80.5, 16.25], [80.25, 16.35], [80.0, 16.25], [79.75, 16.35], [79.5, 16.25], [79.25, 16.35], [79.0, 16.25], [78.47, 16.47], [78.25, 17.0], [78.47, 17.53], [78.82, 17.68], [78.97, 18.03], [79.38, 18.2]]]]}, "2012-06-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.35, 19.25], [79.25, 19.5], [79.47, 20.03], [79.82, 20.18], [79.97, 20.53], [80.32, 20.68], [80.47, 21.03], [80.82, 21.18], [80.97, 21.53], [81.32, 21.68], [81.47, 22.03], [82.0, 22.25], [82.25, 22.15], [82.5, 22.25], [82.75, 22.15], [83.0, 22.25], [83.53, 22.03], [83.68, 21.68], [84.03, 21.53], [84.18, 21.18], [84.53, 21.03], [84.75, 20.5], [84.65, 20.25], [84.75, 20.0], [84.53, 19.47], [84.0, 19.25], [84.53, 19.03], [84.68, 18.68], [85.03, 18.53], [85.25, 18.0], [85.15, 17.75], [85.18, 17.68], [85.25, 17.65], [85.5, 17.75], [85.75, 17.65], [86.0, 17.75], [86.25, 17.65], [86.5, 17.75], [86.75, 17.65], [87.0, 17.75], [87.25, 17.65], [87.32, 17.68], [87.35, 17.75], [87.25, 18.0], [87.47, 18.53], [88.0, 18.75], [88.25, 18.65], [88.5, 18.75], [88.75, 18.65], [88.82, 18.68], [88.97, 19.03], [89.5, 19.25], [90.03, 19.03], [90.25, 18.5], [90.15, 18.25], [90.25, 18.0], [90.15, 17.75], [90.25, 17.5], [90.15, 17.25], [90.25, 17.0], [90.15, 16.75], [90.25, 16.5], [90.15, 16.25], [90.25, 16.0], [90.03, 15.47], [89.68, 15.32], [89.53, 14.97], [89.0, 14.75], [88.75, 14.85], [88.5, 14.75], [88.25, 14.85], [88.0, 14.75], [87.47, 14.97], [87.25, 15.5], [87.35, 15.75], [87.32, 15.82], [87.25, 15.85], [87.0, 15.75], [86.75, 15.85], [86.5, 15.75], [86.25, 15.85], [86.0, 15.75], [85.75, 15.85], [85.5, 15.75], [85.25, 15.85], [85.0, 15.75], [84.75, 15.85], [84.5, 15.75], [84.25, 15.85], [84.0, 15.75], [83.47, 15.97], [83.32, 16.32], [83.25, 16.35], [83.0, 16.25], [82.75, 16.35], [82.68, 16.32], [82.53, 15.97], [82.0, 15.75], [81.47, 15.97], [81.32, 16.32], [81.25, 16.35], [81.0, 16.25], [80.47, 16.47], [80.25, 17.0], [80.35, 17.25], [80.32, 17.32], [79.97, 17.47], [79.82, 17.82], [79.47, 17.97], [79.25, 18.5], [79.35, 18.75], [79.25, 19.0], [79.35, 19.25]], [[83.75, 19.35], [83.68, 19.32], [83.65, 19.25], [83.68, 19.18], [83.75, 19.15], [84.0, 19.25], [83.75, 19.35]]]]}, "2012-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[85.25, 17.0], [85.47, 17.53], [86.0, 17.75], [86.25, 17.65], [86.5, 17.75], [86.75, 17.65], [87.0, 17.75], [87.25, 17.65], [87.32, 17.68], [87.35, 17.75], [87.25, 18.0], [87.47, 18.53], [88.0, 18.75], [88.53, 18.53], [88.75, 18.0], [88.65, 17.75], [88.75, 17.5], [88.53, 16.97], [88.18, 16.82], [88.03, 16.47], [87.5, 16.25], [87.25, 16.35], [87.0, 16.25], [86.75, 16.35], [86.5, 16.25], [86.25, 16.35], [86.0, 16.25], [85.47, 16.47], [85.25, 17.0]]], [[[79.82, 20.18], [79.97, 20.53], [80.32, 20.68], [80.47, 21.03], [80.82, 21.18], [80.97, 21.53], [81.32, 21.68], [81.47, 22.03], [81.82, 22.18], [81.97, 22.53], [82.5, 22.75], [82.75, 22.65], [82.82, 22.68], [82.97, 23.03], [83.5, 23.25], [83.75, 23.15], [84.0, 23.25], [84.25, 23.15], [84.5, 23.25], [84.75, 23.15], [85.0, 23.25], [85.25, 23.15], [85.5, 23.25], [86.03, 23.03], [86.18, 22.68], [86.53, 22.53], [86.75, 22.0], [86.53, 21.47], [86.18, 21.32], [86.15, 21.25], [86.25, 21.0], [86.03, 20.47], [85.5, 20.25], [85.25, 20.35], [85.0, 20.25], [84.75, 20.35], [84.68, 20.32], [84.65, 20.25], [84.75, 20.0], [84.53, 19.47], [84.0, 19.25], [84.53, 19.03], [84.68, 18.68], [85.03, 18.53], [85.25, 18.0], [85.15, 17.75], [85.25, 17.5], [85.03, 16.97], [84.68, 16.82], [84.53, 16.47], [84.0, 16.25], [83.75, 16.35], [83.5, 16.25], [83.25, 16.35], [83.0, 16.25], [82.75, 16.35], [82.68, 16.32], [82.53, 15.97], [82.0, 15.75], [81.47, 15.97], [81.32, 16.32], [80.97, 16.47], [80.75, 17.0], [80.85, 17.25], [80.82, 17.32], [80.75, 17.35], [80.5, 17.25], [79.97, 17.47], [79.75, 18.0], [79.85, 18.25], [79.82, 18.32], [79.47, 18.47], [79.25, 19.0], [79.35, 19.25], [79.25, 19.5], [79.47, 20.03], [79.82, 20.18]], [[83.75, 19.35], [83.68, 19.32], [83.65, 19.25], [83.68, 19.18], [83.75, 19.15], [84.0, 19.25], [83.75, 19.35]]]]}, "2012-06-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[79.75, 19.5], [79.97, 20.03], [80.32, 20.18], [80.35, 20.25], [80.25, 20.5], [80.47, 21.03], [80.82, 21.18], [80.97, 21.53], [81.32, 21.68], [81.47, 22.03], [81.82, 22.18], [81.97, 22.53], [82.5, 22.75], [82.75, 22.65], [82.82, 22.68], [82.97, 23.03], [83.5, 23.25], [83.75, 23.15], [84.0, 23.25], [84.25, 23.15], [84.5, 23.25], [84.75, 23.15], [85.0, 23.25], [85.25, 23.15], [85.5, 23.25], [86.03, 23.03], [86.18, 22.68], [86.53, 22.53], [86.68, 22.18], [86.75, 22.15], [87.0, 22.25], [87.53, 22.03], [87.75, 21.5], [87.53, 20.97], [87.0, 20.75], [86.75, 20.85], [86.5, 20.75], [86.25, 20.85], [86.18, 20.82], [86.03, 20.47], [85.5, 20.25], [85.25, 20.35], [85.0, 20.25], [84.75, 20.35], [84.68, 20.32], [84.65, 20.25], [84.75, 20.0], [84.53, 19.47], [84.0, 19.25], [84.53, 19.03], [84.75, 18.5], [84.53, 17.97], [84.0, 17.75], [83.75, 17.85], [83.68, 17.82], [83.53, 17.47], [83.0, 17.25], [82.75, 17.35], [82.5, 17.25], [82.25, 17.35], [82.0, 17.25], [81.75, 17.35], [81.5, 17.25], [80.97, 17.47], [80.82, 17.82], [80.47, 17.97], [80.25, 18.5], [80.35, 18.75], [80.32, 18.82], [79.97, 18.97], [79.75, 19.5]], [[83.75, 19.35], [83.68, 19.32], [83.65, 19.25], [83.68, 19.18], [83.75, 19.15], [84.0, 19.25], [83.75, 19.35]]]]}, "2012-06-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[81.25, 21.5], [81.47, 22.03], [81.82, 22.18], [81.97, 22.53], [82.5, 22.75], [82.75, 22.65], [82.82, 22.68], [82.97, 23.03], [83.5, 23.25], [83.75, 23.15], [84.0, 23.25], [84.25, 23.15], [84.5, 23.25], [84.75, 23.15], [85.0, 23.25], [85.25, 23.15], [85.5, 23.25], [86.03, 23.03], [86.18, 22.68], [86.53, 22.53], [86.68, 22.18], [86.75, 22.15], [87.0, 22.25], [87.53, 22.03], [87.75, 21.5], [87.53, 20.97], [87.0, 20.75], [86.75, 20.85], [86.5, 20.75], [86.25, 20.85], [86.18, 20.82], [86.03, 20.47], [85.5, 20.25], [85.25, 20.35], [85.0, 20.25], [84.75, 20.35], [84.5, 20.25], [84.25, 20.35], [84.0, 20.25], [83.75, 20.35], [83.5, 20.25], [83.25, 20.35], [83.0, 20.25], [82.75, 20.35], [82.5, 20.25], [81.97, 20.47], [81.82, 20.82], [81.47, 20.97], [81.25, 21.5]]]]}, "2012-06-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[83.75, 22.5], [83.97, 23.03], [84.5, 23.25], [84.75, 23.15], [85.0, 23.25], [85.53, 23.03], [85.68, 22.68], [85.75, 22.65], [86.0, 22.75], [86.53, 22.53], [86.68, 22.18], [86.75, 22.15], [87.0, 22.25], [87.53, 22.03], [87.75, 21.5], [87.53, 20.97], [87.0, 20.75], [86.75, 20.85], [86.5, 20.75], [86.25, 20.85], [86.18, 20.82], [86.03, 20.47], [85.5, 20.25], [85.25, 20.35], [85.0, 20.25], [84.47, 20.47], [84.25, 21.0], [84.35, 21.25], [84.25, 21.5], [84.35, 21.75], [84.32, 21.82], [83.97, 21.97], [83.75, 22.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.959313401137251}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.5426569365366345}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.172361388055208, 26.88713089185387, 26.18221125171118, 26.189873506405092, 25.030440674439546, 24.616446999196285, 25.088622857739722, 25.272492532575882]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.64384163231375, 22.46450522814473, 21.94631447530611, 21.562029791728946, 20.55196460592532, 21.71810134176684, 23.536833000399554, 23.962792108508154]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.0493286107264734, -2.2003009873159387, -2.347865897301578, -2.1672465608373153, -3.0801670340141634, -3.0030064538908197, -3.1456000964165014, -2.4699673271055786]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.242366799674585, -4.959313401137251, -4.752122087934822, -3.804444949259903, -4.774917307666442, -4.166281662422421, -4.064652928195471, -2.9027243022467246]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4421980670460772, -1.9609674763676979, -1.9440290219069591, -1.6402987335294954, -1.721977227908179, -1.5483900477464048, -1.6099027435732078, -1.563973235800885]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6497777051894884, -2.764649291614201, -2.8270214560929037, -2.1710974735366944, -2.4886786089222475, -1.8808530264177334, -1.8558857525494328, -2.1708639695496315]}}