{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:05.406679", "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-Feb-09_to_2010-Feb-12_67.0_25.0"}, "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": 2010020000321}, "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": "February 09 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 12 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 72252.2389896495}, "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": ["Pakistan"]}, "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": ["Arabian Sea"]}, "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": 25.0}, "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": 67.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "67.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 64.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 68.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 24.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 27.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-02-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[63.97, 26.53], [64.32, 26.68], [64.47, 27.03], [65.0, 27.25], 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26.32], [67.65, 26.25], [67.68, 26.18], [68.03, 26.03], [68.18, 25.68], [68.53, 25.53], [68.75, 25.0], [68.53, 24.47], [68.18, 24.32], [68.03, 23.97], [67.5, 23.75], [66.97, 23.97], [66.82, 24.32], [66.47, 24.47], [66.32, 24.82], [66.25, 24.85], [66.0, 24.75], [65.75, 24.85], [65.5, 24.75], [65.25, 24.85], [65.0, 24.75], [64.75, 24.85], [64.5, 24.75], [63.97, 24.97], [63.75, 25.5], [63.85, 25.75], [63.75, 26.0], [63.97, 26.53]]]]}, "2010-02-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[63.97, 26.53], [64.32, 26.68], [64.47, 27.03], [65.0, 27.25], [65.25, 27.15], [65.5, 27.25], [65.75, 27.15], [65.82, 27.18], [65.97, 27.53], [66.32, 27.68], [66.47, 28.03], [67.0, 28.25], [67.53, 28.03], [67.68, 27.68], [68.03, 27.53], [68.25, 27.0], [68.03, 26.47], [67.68, 26.32], [67.65, 26.25], [67.68, 26.18], [68.03, 26.03], [68.18, 25.68], [68.53, 25.53], [68.75, 25.0], [68.53, 24.47], [68.18, 24.32], [68.03, 23.97], [67.5, 23.75], [66.97, 23.97], [66.82, 24.32], [66.47, 24.47], [66.32, 24.82], [66.25, 24.85], [66.0, 24.75], [65.75, 24.85], [65.5, 24.75], [65.25, 24.85], [65.0, 24.75], [64.75, 24.85], [64.5, 24.75], [63.97, 24.97], [63.75, 25.5], [63.85, 25.75], [63.75, 26.0], [63.97, 26.53]]]]}, "2010-02-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[67.0, 25.75], [67.53, 25.53], [67.75, 25.0], [67.53, 24.47], [67.0, 24.25], [66.47, 24.47], [66.25, 25.0], [66.47, 25.53], [67.0, 25.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.193556966273775}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.465353840292355}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.510401961414289, 13.926747052794212, 14.552716701994086, 17.891836530489343]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [7.599985249154258, 8.253037732337248, 9.517010280433453, 17.891836530489343]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.805456336441245, -4.542677135738837, -4.101624070312607, -3.069257278286159]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-7.193556966273775, -5.7920367841991265, -4.887459771402405, -3.069257278286159]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8828682823165983, -1.869059334109772, -1.7670200933737588, -1.6956204511016164]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.481233887326956, -2.5458050908639085, -2.183737900520965, -1.6956204511016164]}}