{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:52.079775", "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": "2019-Jun-11_to_2019-Jun-13_61.5_30.0"}, "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": 2019060000386}, "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 11 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 13 2019"}, "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": 101931.46140186749}, "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": ["Afghanistan", "Iran", "Pakistan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.Asia", "W.C.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": []}, "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": 30.0}, "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": 61.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "61.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 60.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 65.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 27.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 32.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-06-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[60.47, 31.03], [61.0, 31.25], [61.25, 31.15], [61.32, 31.18], 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"coordinates": [[[[60.47, 31.03], [61.0, 31.25], [61.25, 31.15], [61.32, 31.18], [61.47, 31.53], [61.82, 31.68], [61.85, 31.75], [61.75, 32.0], [61.97, 32.53], [62.5, 32.75], [63.03, 32.53], [63.18, 32.18], [63.53, 32.03], [63.68, 31.68], [64.03, 31.53], [64.18, 31.18], [64.25, 31.15], [64.5, 31.25], [65.03, 31.03], [65.18, 30.68], [65.53, 30.53], [65.75, 30.0], [65.53, 29.47], [65.0, 29.25], [64.75, 29.35], [64.5, 29.25], [64.0, 29.46], [63.68, 29.32], [63.53, 28.97], [63.18, 28.82], [63.15, 28.75], [63.18, 28.68], [63.25, 28.65], [63.5, 28.75], [63.75, 28.65], [64.0, 28.75], [64.53, 28.53], [64.75, 28.0], [64.65, 27.75], [64.75, 27.5], [64.53, 26.97], [64.0, 26.75], [63.75, 26.85], [63.5, 26.75], [63.25, 26.85], [63.0, 26.75], [62.47, 26.97], [62.25, 27.5], [62.35, 27.75], [62.32, 27.82], [62.25, 27.85], [62.0, 27.75], [61.47, 27.97], [61.32, 28.32], [60.97, 28.47], [60.75, 29.0], [60.85, 29.25], [60.82, 29.32], [60.47, 29.47], [60.25, 30.0], [60.35, 30.25], [60.25, 30.5], [60.47, 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