{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:54:53.017334", "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": "2013-Nov-17_to_2013-Nov-21_90.5_23.5"}, "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": 2013110000795}, "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": "November 17 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 21 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 76851.26737154443}, "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": ["Bangladesh", "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": 23.5}, "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": 90.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "90.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 87.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 91.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 20.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 24.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-11-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[88.75, 24.5], [88.97, 25.03], [89.5, 25.25], [90.03, 25.03], 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[90.18, 21.32], [90.03, 20.97], [89.5, 20.75], [89.0, 20.96], [88.68, 20.82], [88.53, 20.47], [88.0, 20.25], [87.75, 20.35], [87.5, 20.25], [86.97, 20.47], [86.75, 21.0], [86.85, 21.25], [86.75, 21.5], [86.97, 22.03]]]]}, "2013-11-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[86.97, 22.03], [87.5, 22.25], [87.75, 22.15], [88.0, 22.25], [88.25, 22.15], [88.38, 22.2], [88.25, 22.5], [88.46, 23.0], [88.32, 23.32], [87.97, 23.47], [87.75, 24.0], [87.97, 24.53], [88.5, 24.75], [88.75, 24.65], [88.82, 24.68], [88.97, 25.03], [89.5, 25.25], [89.75, 25.15], [90.0, 25.25], [90.25, 25.15], [90.5, 25.25], [90.75, 25.15], [91.0, 25.25], [91.53, 25.03], [91.75, 24.5], [91.54, 24.0], [91.75, 23.5], [91.53, 22.97], [91.18, 22.82], [91.15, 22.75], [91.25, 22.5], [91.03, 21.97], [90.68, 21.82], [90.53, 21.47], [90.18, 21.32], [90.03, 20.97], [89.5, 20.75], [89.25, 20.85], [89.0, 20.75], [88.75, 20.85], [88.68, 20.82], [88.53, 20.47], [88.0, 20.25], [87.75, 20.35], [87.5, 20.25], [86.97, 20.47], [86.75, 21.0], [86.85, 21.25], [86.75, 21.5], [86.97, 22.03]]]]}, "2013-11-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[86.97, 22.03], [87.5, 22.25], [87.75, 22.15], [88.0, 22.25], [88.25, 22.15], [88.38, 22.2], [88.25, 22.5], [88.46, 23.0], [88.32, 23.32], [87.97, 23.47], [87.75, 24.0], [87.97, 24.53], [88.5, 24.75], [88.75, 24.65], [88.82, 24.68], [88.97, 25.03], [89.5, 25.25], [89.75, 25.15], [90.0, 25.25], [90.25, 25.15], [90.5, 25.25], [90.75, 25.15], [91.0, 25.25], [91.53, 25.03], [91.75, 24.5], [91.54, 24.0], [91.75, 23.5], [91.53, 22.97], [91.18, 22.82], [91.15, 22.75], [91.25, 22.5], [91.03, 21.97], [90.68, 21.82], [90.53, 21.47], [90.18, 21.32], [90.03, 20.97], [89.5, 20.75], [89.25, 20.85], [89.0, 20.75], [88.75, 20.85], [88.68, 20.82], [88.53, 20.47], [88.0, 20.25], [87.75, 20.35], [87.5, 20.25], [86.97, 20.47], [86.75, 21.0], [86.85, 21.25], [86.75, 21.5], [86.97, 22.03]]]]}, "2013-11-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[88.47, 24.53], [89.0, 24.75], [89.3, 24.63], [89.47, 25.03], [90.0, 25.25], [90.25, 25.15], [90.5, 25.25], [90.75, 25.15], [91.0, 25.25], [91.53, 25.03], [91.75, 24.5], [91.54, 24.0], [91.75, 23.5], [91.53, 22.97], [91.18, 22.82], [91.03, 22.47], [90.63, 22.3], [90.75, 22.0], [90.53, 21.47], [90.18, 21.32], [90.03, 20.97], [89.5, 20.75], [89.25, 20.85], [89.0, 20.75], [88.47, 20.97], [88.25, 21.5], [88.47, 22.03], [88.88, 22.2], [88.75, 22.5], [88.88, 22.8], [88.47, 22.97], [88.25, 23.5], [88.35, 23.75], [88.25, 24.0], [88.47, 24.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.3348455333660354}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.6213789634441749}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.925694539852486, 22.966309909187373, 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