{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:23.659777", "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-Sep-04_to_2012-Sep-06_89.0_22.0"}, "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": 2012090000265}, "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": "September 04 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 06 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "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": 144920.70504078624}, "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": 22.0}, "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": 89.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "89.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 85.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 90.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 20.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 25.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-09-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[84.97, 24.53], [85.5, 24.75], [85.75, 24.65], [85.82, 24.68], 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"MultiPolygon", "coordinates": [[[[84.97, 24.53], [85.5, 24.75], [85.75, 24.65], [85.82, 24.68], [85.97, 25.03], [86.5, 25.25], [86.75, 25.15], [87.0, 25.25], [87.25, 25.15], [87.5, 25.25], [87.75, 25.15], [87.82, 25.18], [87.97, 25.53], [88.5, 25.75], [89.03, 25.53], [89.18, 25.18], [89.53, 25.03], [89.68, 24.68], [89.75, 24.65], [90.0, 24.75], [90.53, 24.53], [90.75, 24.0], [90.65, 23.75], [90.75, 23.5], [90.53, 22.97], [90.18, 22.82], [90.03, 22.47], [89.68, 22.32], [89.65, 22.25], [89.75, 22.0], [89.65, 21.75], [89.75, 21.5], [89.65, 21.25], [89.75, 21.0], [89.65, 20.75], [89.75, 20.5], [89.53, 19.97], [89.0, 19.75], [88.47, 19.97], [88.25, 20.5], [88.35, 20.75], [88.32, 20.82], [87.97, 20.97], [87.82, 21.32], [87.75, 21.35], [87.5, 21.25], [87.25, 21.35], [87.18, 21.32], [87.03, 20.97], [86.5, 20.75], [85.97, 20.97], [85.75, 21.5], [85.85, 21.75], [85.75, 22.0], [85.85, 22.25], [85.75, 22.5], [85.85, 22.75], [85.82, 22.82], [85.75, 22.85], [85.5, 22.75], [84.97, 22.97], [84.75, 23.5], [84.85, 23.75], [84.75, 24.0], [84.97, 24.53]]]]}, "2012-09-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[84.97, 24.53], [85.5, 24.75], [85.75, 24.65], [85.82, 24.68], [85.97, 25.03], [86.5, 25.25], [86.75, 25.15], [87.0, 25.25], [87.25, 25.15], [87.5, 25.25], [87.75, 25.15], [87.82, 25.18], [87.97, 25.53], [88.5, 25.75], [89.03, 25.53], [89.18, 25.18], [89.53, 25.03], [89.68, 24.68], [89.75, 24.65], [90.0, 24.75], [90.53, 24.53], [90.75, 24.0], [90.65, 23.75], [90.75, 23.5], [90.53, 22.97], [90.18, 22.82], [90.03, 22.47], [89.68, 22.32], [89.65, 22.25], [89.75, 22.0], [89.65, 21.75], [89.75, 21.5], [89.65, 21.25], [89.75, 21.0], [89.65, 20.75], [89.75, 20.5], [89.53, 19.97], [89.0, 19.75], [88.47, 19.97], [88.25, 20.5], [88.35, 20.75], [88.32, 20.82], [87.97, 20.97], [87.82, 21.32], [87.75, 21.35], [87.5, 21.25], [87.25, 21.35], [87.18, 21.32], [87.03, 20.97], [86.5, 20.75], [85.97, 20.97], [85.75, 21.5], [85.85, 21.75], [85.75, 22.0], [85.85, 22.25], 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"anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.3014402723405283, -2.5729969468948752, -2.689568084005032]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7223905111663536, -1.8350009959172133, -1.8738285728586466]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.403873746751631, -2.6583830456644675, -2.189838457593809]}}