{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:52:45.389367", "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-Mar-03_to_2013-Mar-08_84.5_18.5"}, "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": 2013030000161}, "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": "March 03 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 08 2013"}, "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": 70650.05521532036}, "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": 18.5}, "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": 84.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "84.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 81.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 87.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 16.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 19.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-03-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[82.5, 18.25], [83.0, 18.04], [83.5, 18.25], [83.93, 18.07], 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[81.82, 17.68], [81.97, 18.03], [82.5, 18.25]]]]}, "2013-03-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[82.5, 18.25], [82.75, 18.15], [82.82, 18.18], [82.97, 18.53], [83.32, 18.68], [83.47, 19.03], [84.0, 19.25], [84.25, 19.15], [84.32, 19.18], [84.35, 19.25], [84.25, 19.5], [84.47, 20.03], [85.0, 20.25], [85.53, 20.03], [85.75, 19.5], [85.65, 19.25], [85.75, 19.0], [85.53, 18.47], [85.18, 18.32], [85.03, 17.97], [84.68, 17.82], [84.53, 17.47], [84.18, 17.32], [84.03, 16.97], [83.5, 16.75], [83.25, 16.85], [83.0, 16.75], [82.75, 16.85], [82.68, 16.82], [82.53, 16.47], [82.0, 16.25], [81.47, 16.47], [81.25, 17.0], [81.47, 17.53], [81.82, 17.68], [81.97, 18.03], [82.5, 18.25]]]]}, "2013-03-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[83.32, 18.68], [83.47, 19.03], [84.0, 19.25], [84.25, 19.15], [84.32, 19.18], [84.35, 19.25], [84.25, 19.5], [84.47, 20.03], [85.0, 20.25], [85.53, 20.03], [85.75, 19.5], [85.65, 19.25], [85.75, 19.0], [85.63, 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"description": "The daily evolution of mean t2m.", "value": [25.00828646113348, 25.047149927532416, 25.086351893188862, 25.472219188161603, 25.538310644990872, 25.64336904806987]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.24344014117281, 23.938176906417823, 24.086280989644933, 24.946359002499207, 25.286614704586555, 25.45536127402511]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.2430703964775376, -1.384122040940977, -1.4454026987057602, -0.9466699059870894, -0.9028617308187152, -0.8108002346333437]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.6752260486127852, -2.0426530195815076, -2.0334503523775425, -1.3691727340921034, -1.0231167196423598, -0.9275545842472752]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5854342227844052, -1.844950040375032, -1.9264471915331485, -1.669523784360706, -1.7709486140574706, -1.6011969091025118]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8411831662757212, -2.3161638400612103, -2.370604940638751, -1.8679668275231271, -2.0738869726485207, -1.805743928421139]}}