{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:13.655458", "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": "2016-Sep-18_to_2016-Sep-22_47.0_33.5"}, "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": 2016090000483}, "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 18 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 22 2016"}, "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": 69798.28546675095}, "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": ["Iran", "Iraq"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": 33.5}, "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": 47.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "47.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 43.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 48.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 31.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 34.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-09-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.47, 33.53], [43.82, 33.68], [43.85, 33.75], [43.75, 34.0], 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32.25], [46.0, 32.46], [45.68, 32.32], [45.65, 32.25], [45.75, 32.0], [45.53, 31.47], [45.0, 31.25], [44.75, 31.35], [44.5, 31.25], [44.25, 31.35], [44.0, 31.25], [43.47, 31.47], [43.25, 32.0], [43.46, 32.5], [43.25, 33.0], [43.47, 33.53]]]]}, "2016-09-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[46.47, 34.53], [47.0, 34.75], [47.53, 34.53], [47.68, 34.18], [48.03, 34.03], [48.25, 33.5], [48.13, 33.2], [48.53, 33.03], [48.75, 32.5], [48.53, 31.97], [48.0, 31.75], [47.47, 31.97], [47.25, 32.5], [47.38, 32.8], [47.25, 32.85], [47.0, 32.75], [46.47, 32.97], [46.25, 33.5], [46.35, 33.75], [46.25, 34.0], [46.47, 34.53]]]]}, "2016-09-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[47.0, 34.25], [47.53, 34.03], [47.75, 33.5], [47.53, 32.97], [47.0, 32.75], [46.47, 32.97], [46.25, 33.5], [46.47, 34.03], [47.0, 34.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 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