{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:47:40.556564", "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": "2011-Jun-11_to_2011-Jun-16_43.0_37.0"}, "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": 2011060000617}, "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 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 16 2011"}, "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": 996800.3147083436}, "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", "Jordan", "Kuwait", "Saudi Arabia", "Syria", "Turkiye"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula", "Mediterranean", "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": ["Persian Gulf"]}, "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": 37.0}, "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": 43.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "43.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 36.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 49.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 26.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 40.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-06-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.97, 37.97], [37.75, 38.5], [37.97, 39.03], [38.5, 39.25], [39.03, 39.03], [39.2, 38.63], [39.5, 38.75], [40.03, 38.53], [40.25, 38.0], [40.03, 37.47], [39.5, 37.25], [38.97, 37.47], [38.8, 37.88], [38.5, 37.75], [37.97, 37.97]]]]}, "2011-06-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.97, 29.53], [36.32, 29.68], [36.35, 29.75], [36.25, 30.0], [36.47, 30.53], [37.0, 30.75], [37.25, 30.65], [37.32, 30.68], [37.35, 30.75], [37.25, 31.0], [37.35, 31.25], [37.32, 31.32], [36.97, 31.47], [36.75, 32.0], [36.85, 32.25], [36.75, 32.5], [36.97, 33.03], [37.32, 33.18], [37.47, 33.53], [38.0, 33.75], [38.25, 33.65], [38.5, 33.75], [39.03, 33.53], [39.18, 33.18], [39.25, 33.15], [39.5, 33.25], [39.75, 33.15], [40.0, 33.25], [40.25, 33.15], [40.32, 33.18], [40.35, 33.25], [40.25, 33.5], [40.47, 34.03], [40.82, 34.18], [40.97, 34.53], [41.5, 34.75], [41.75, 34.65], [41.82, 34.68], [41.85, 34.75], [41.75, 35.0], [41.97, 35.53], [42.32, 35.68], [42.38, 35.8], [41.97, 35.97], [41.75, 36.5], [41.85, 36.75], [41.82, 36.82], [41.5, 36.96], [41.0, 36.75], [40.75, 36.85], [40.5, 36.75], [39.97, 36.97], [39.82, 37.32], [39.75, 37.35], [39.5, 37.25], [38.97, 37.47], [38.82, 37.82], [38.75, 37.85], [38.5, 37.75], [37.97, 37.97], [37.75, 38.5], [37.97, 39.03], [38.5, 39.25], [38.75, 39.15], [38.82, 39.18], [38.97, 39.53], [39.5, 39.75], [39.75, 39.65], [39.82, 39.68], [39.97, 40.03], [40.5, 40.25], [40.75, 40.15], [41.0, 40.25], [41.25, 40.15], [41.5, 40.25], [41.75, 40.15], [42.0, 40.25], [42.25, 40.15], [42.5, 40.25], [42.75, 40.15], [42.82, 40.18], [42.97, 40.53], [43.5, 40.75], [43.75, 40.65], [44.0, 40.75], [44.53, 40.53], [44.75, 40.0], [44.53, 39.47], [44.18, 39.32], [44.15, 39.25], [44.18, 39.18], [44.53, 39.03], [44.75, 38.5], [44.53, 37.97], [44.18, 37.82], [44.15, 37.75], [44.2, 37.63], [44.5, 37.75], [45.03, 37.53], [45.25, 37.0], [45.04, 36.5], [45.25, 36.0], [45.15, 35.75], [45.25, 35.5], [45.03, 34.97], [44.63, 34.8], [44.68, 34.68], [45.03, 34.53], [45.18, 34.18], [45.53, 34.03], [45.68, 33.68], [46.03, 33.53], [46.25, 33.0], [46.15, 32.75], [46.18, 32.68], [46.53, 32.53], [46.68, 32.18], [47.03, 32.03], [47.25, 31.5], [47.15, 31.25], [47.25, 31.0], [47.03, 30.47], [46.5, 30.25], [46.25, 30.35], [46.18, 30.32], [46.03, 29.97], [45.68, 29.82], [45.53, 29.47], [45.0, 29.25], [44.75, 29.35], [44.5, 29.25], [44.25, 29.35], [44.0, 29.25], [43.75, 29.35], [43.68, 29.32], [43.53, 28.97], [43.0, 28.75], [42.75, 28.85], [42.5, 28.75], [42.25, 28.85], [42.18, 28.82], [42.03, 28.47], [41.5, 28.25], [41.25, 28.35], [41.18, 28.32], [41.03, 27.97], [40.5, 27.75], [40.25, 27.85], [40.18, 27.82], [40.03, 27.47], [39.5, 27.25], [39.25, 27.35], [39.0, 27.25], [38.47, 27.47], [38.32, 27.82], [38.25, 27.85], [38.0, 27.75], [37.5, 27.96], [37.0, 27.75], [36.75, 27.85], [36.5, 27.75], [35.97, 27.97], [35.75, 28.5], [35.85, 28.75], [35.75, 29.0], [35.97, 29.53]], [[43.68, 35.68], [43.8, 35.63], [43.85, 35.75], [43.82, 35.82], [43.75, 35.85], [43.63, 35.8], [43.68, 35.68]]]]}, "2011-06-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.97, 29.53], [36.32, 29.68], [36.35, 29.75], [36.25, 30.0], [36.47, 30.53], [37.0, 30.75], [37.25, 30.65], [37.32, 30.68], [37.35, 30.75], [37.25, 31.0], [37.35, 31.25], [37.32, 31.32], [36.97, 31.47], [36.75, 32.0], [36.85, 32.25], [36.75, 32.5], [36.97, 33.03], [37.32, 33.18], [37.47, 33.53], [38.0, 33.75], [38.25, 33.65], [38.32, 33.68], [38.38, 33.8], [37.97, 33.97], [37.75, 34.5], [37.97, 35.03], [38.5, 35.25], [38.75, 35.15], [38.82, 35.18], [38.97, 35.53], [39.5, 35.75], [39.75, 35.65], [40.0, 35.75], [40.25, 35.65], [40.32, 35.68], [40.35, 35.75], [40.25, 36.0], [40.35, 36.25], [40.3, 36.38], [40.0, 36.25], [39.47, 36.47], [39.25, 37.0], [39.35, 37.25], [39.32, 37.32], [39.25, 37.35], [39.0, 37.25], [38.75, 37.35], [38.5, 37.25], [37.97, 37.47], [37.75, 38.0], [37.85, 38.25], [37.75, 38.5], [37.97, 39.03], [38.5, 39.25], [38.75, 39.15], [38.82, 39.18], [38.97, 39.53], [39.5, 39.75], [39.75, 39.65], [39.82, 39.68], [39.97, 40.03], [40.5, 40.25], [40.75, 40.15], [41.0, 40.25], [41.25, 40.15], [41.5, 40.25], [41.75, 40.15], [42.0, 40.25], [42.25, 40.15], [42.5, 40.25], [42.75, 40.15], [42.82, 40.18], [42.97, 40.53], [43.5, 40.75], [43.75, 40.65], [44.0, 40.75], [44.53, 40.53], [44.75, 40.0], [44.53, 39.47], [44.18, 39.32], [44.15, 39.25], [44.18, 39.18], [44.53, 39.03], [44.75, 38.5], [44.53, 37.97], [44.18, 37.82], [44.15, 37.75], [44.18, 37.68], [44.25, 37.65], [44.5, 37.75], [45.03, 37.53], [45.18, 37.18], [45.53, 37.03], [45.68, 36.68], [46.03, 36.53], [46.25, 36.0], [46.15, 35.75], [46.2, 35.63], [46.5, 35.75], [47.03, 35.53], [47.25, 35.0], [47.15, 34.75], [47.18, 34.68], [47.25, 34.65], [47.5, 34.75], [48.03, 34.53], [48.2, 34.13], [48.5, 34.25], [49.03, 34.03], [49.25, 33.5], [49.13, 33.2], [49.53, 33.03], [49.75, 32.5], [49.53, 31.97], [49.13, 31.8], [49.25, 31.5], [49.15, 31.25], [49.25, 31.0], [49.15, 30.75], [49.25, 30.5], [49.03, 29.97], [48.68, 29.82], [48.54, 29.5], [48.75, 29.0], [48.65, 28.75], [48.75, 28.5], [48.53, 27.97], [48.18, 27.82], [48.03, 27.47], [47.5, 27.25], [46.97, 27.47], [46.82, 27.82], [46.47, 27.97], [46.32, 28.32], [46.25, 28.35], [46.0, 28.25], [45.75, 28.35], [45.68, 28.32], [45.53, 27.97], [45.18, 27.82], [45.03, 27.47], [44.5, 27.25], [44.25, 27.35], [44.0, 27.25], [43.75, 27.35], [43.5, 27.25], [42.97, 27.47], [42.82, 27.82], [42.75, 27.85], [42.5, 27.75], [41.97, 27.97], [41.82, 28.32], [41.75, 28.35], [41.5, 28.25], [41.25, 28.35], [41.18, 28.32], [41.03, 27.97], [40.5, 27.75], [40.25, 27.85], [40.18, 27.82], [40.03, 27.47], [39.5, 27.25], [39.25, 27.35], [39.0, 27.25], [38.47, 27.47], [38.32, 27.82], [38.25, 27.85], [38.0, 27.75], [37.5, 27.96], [37.0, 27.75], [36.75, 27.85], [36.5, 27.75], [35.97, 27.97], [35.75, 28.5], [35.85, 28.75], [35.75, 29.0], [35.97, 29.53]]]]}, "2011-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[35.97, 29.53], [36.32, 29.68], [36.35, 29.75], [36.25, 30.0], [36.47, 30.53], [37.0, 30.75], [37.25, 30.65], [37.32, 30.68], [37.35, 30.75], [37.25, 31.0], [37.35, 31.25], [37.32, 31.32], [36.97, 31.47], [36.75, 32.0], [36.85, 32.25], [36.75, 32.5], [36.97, 33.03], [37.32, 33.18], [37.47, 33.53], [38.0, 33.75], [38.25, 33.65], [38.32, 33.68], [38.38, 33.8], [37.97, 33.97], [37.75, 34.5], [37.97, 35.03], [38.5, 35.25], [38.75, 35.15], [38.82, 35.18], [38.97, 35.53], [39.5, 35.75], [39.75, 35.65], [40.0, 35.75], [40.25, 35.65], [40.32, 35.68], [40.35, 35.75], [40.25, 36.0], [40.35, 36.25], [40.3, 36.38], [40.0, 36.25], [39.47, 36.47], [39.25, 37.0], [39.35, 37.25], [39.32, 37.32], [39.25, 37.35], [39.0, 37.25], [38.75, 37.35], [38.5, 37.25], [37.97, 37.47], [37.75, 38.0], [37.85, 38.25], [37.75, 38.5], [37.97, 39.03], [38.5, 39.25], [38.75, 39.15], [38.82, 39.18], [38.97, 39.53], [39.5, 39.75], [39.75, 39.65], [39.82, 39.68], [39.97, 40.03], [40.5, 40.25], [40.75, 40.15], [41.0, 40.25], [41.25, 40.15], [41.5, 40.25], [41.75, 40.15], [42.0, 40.25], [42.25, 40.15], [42.5, 40.25], [42.75, 40.15], [42.82, 40.18], [42.97, 40.53], [43.5, 40.75], [43.75, 40.65], [44.0, 40.75], [44.53, 40.53], [44.75, 40.0], [44.53, 39.47], [44.18, 39.32], [44.15, 39.25], [44.18, 39.18], [44.53, 39.03], [44.75, 38.5], [44.53, 37.97], [44.18, 37.82], [44.15, 37.75], [44.18, 37.68], [44.25, 37.65], [44.5, 37.75], [45.03, 37.53], [45.18, 37.18], [45.53, 37.03], [45.68, 36.68], [46.03, 36.53], [46.25, 36.0], [46.15, 35.75], [46.2, 35.63], [46.5, 35.75], [47.03, 35.53], [47.25, 35.0], [47.15, 34.75], [47.18, 34.68], [47.25, 34.65], [47.5, 34.75], [48.03, 34.53], [48.2, 34.13], [48.5, 34.25], [49.03, 34.03], [49.25, 33.5], [49.13, 33.2], [49.53, 33.03], [49.75, 32.5], [49.53, 31.97], [49.13, 31.8], [49.25, 31.5], [49.15, 31.25], [49.25, 31.0], [49.15, 30.75], [49.25, 30.5], [49.03, 29.97], [48.68, 29.82], [48.54, 29.5], [48.75, 29.0], [48.65, 28.75], [48.75, 28.5], [48.53, 27.97], [48.18, 27.82], [48.03, 27.47], [47.5, 27.25], [46.97, 27.47], [46.82, 27.82], [46.7, 27.88], [46.65, 27.75], [46.75, 27.5], [46.65, 27.25], [46.75, 27.0], [46.53, 26.47], [46.0, 26.25], [45.75, 26.35], [45.5, 26.25], [44.97, 26.47], [44.82, 26.82], [44.47, 26.97], [44.32, 27.32], [44.25, 27.35], [44.0, 27.25], [43.75, 27.35], [43.5, 27.25], [42.97, 27.47], [42.82, 27.82], [42.75, 27.85], [42.5, 27.75], [41.97, 27.97], [41.82, 28.32], [41.75, 28.35], [41.5, 28.25], [41.25, 28.35], [41.18, 28.32], [41.03, 27.97], [40.5, 27.75], [40.25, 27.85], [40.18, 27.82], [40.03, 27.47], [39.5, 27.25], [39.25, 27.35], [39.0, 27.25], [38.47, 27.47], [38.32, 27.82], [38.25, 27.85], [38.0, 27.75], [37.5, 27.96], [37.0, 27.75], [36.75, 27.85], [36.5, 27.75], [35.97, 27.97], [35.75, 28.5], [35.85, 28.75], [35.75, 29.0], [35.97, 29.53]]]]}, "2011-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[37.75, 34.5], [37.97, 35.03], [38.5, 35.25], [38.75, 35.15], [38.82, 35.18], [38.97, 35.53], [39.5, 35.75], [39.75, 35.65], [40.0, 35.75], [40.25, 35.65], [40.32, 35.68], [40.35, 35.75], [40.25, 36.0], [40.35, 36.25], [40.3, 36.38], [40.0, 36.25], [39.47, 36.47], [39.25, 37.0], [39.35, 37.25], [39.3, 37.38], [39.0, 37.25], [38.75, 37.35], [38.5, 37.25], [37.97, 37.47], [37.75, 38.0], [37.97, 38.53], [38.5, 38.75], [38.75, 38.65], [38.88, 38.7], [38.75, 39.0], [38.97, 39.53], [39.5, 39.75], [40.03, 39.53], [40.18, 39.18], [40.25, 39.15], [40.5, 39.25], [40.75, 39.15], [41.0, 39.25], [41.53, 39.03], [41.68, 38.68], [41.75, 38.65], [42.0, 38.75], [42.25, 38.65], [42.5, 38.75], [43.03, 38.53], [43.18, 38.18], [43.53, 38.03], [43.68, 37.68], [43.75, 37.65], [44.0, 37.75], [44.25, 37.65], [44.5, 37.75], [45.03, 37.53], [45.18, 37.18], [45.53, 37.03], [45.68, 36.68], [46.03, 36.53], [46.25, 36.0], [46.15, 35.75], [46.2, 35.63], [46.5, 35.75], [47.03, 35.53], [47.25, 35.0], [47.15, 34.75], [47.18, 34.68], [47.25, 34.65], [47.5, 34.75], [48.03, 34.53], [48.2, 34.13], [48.5, 34.25], [49.03, 34.03], [49.25, 33.5], [49.13, 33.2], [49.53, 33.03], [49.75, 32.5], [49.53, 31.97], [49.13, 31.8], [49.25, 31.5], [49.15, 31.25], [49.25, 31.0], [49.15, 30.75], [49.25, 30.5], [49.03, 29.97], [48.68, 29.82], [48.54, 29.5], [48.75, 29.0], [48.65, 28.75], [48.75, 28.5], [48.53, 27.97], [48.18, 27.82], [48.03, 27.47], [47.5, 27.25], [46.97, 27.47], [46.82, 27.82], [46.7, 27.88], [46.65, 27.75], [46.75, 27.5], [46.65, 27.25], [46.75, 27.0], [46.53, 26.47], [46.0, 26.25], [45.75, 26.35], [45.5, 26.25], [44.97, 26.47], [44.82, 26.82], [44.47, 26.97], [44.32, 27.32], [44.25, 27.35], [44.0, 27.25], [43.75, 27.35], [43.5, 27.25], [42.97, 27.47], [42.82, 27.82], [42.75, 27.85], [42.5, 27.75], [41.97, 27.97], [41.82, 28.32], [41.47, 28.47], [41.32, 28.82], [41.25, 28.85], [41.0, 28.75], [40.47, 28.97], [40.32, 29.32], [39.97, 29.47], [39.75, 30.0], [39.85, 30.25], [39.82, 30.32], [39.47, 30.47], [39.25, 31.0], [39.47, 31.53], [39.82, 31.68], [39.85, 31.75], [39.82, 31.82], [39.47, 31.97], [39.25, 32.5], [39.35, 32.75], [39.32, 32.82], [39.25, 32.85], [39.0, 32.75], [38.47, 32.97], [38.25, 33.5], [38.38, 33.8], [37.97, 33.97], [37.75, 34.5]], [[43.82, 34.18], [43.85, 34.25], [43.82, 34.32], [43.75, 34.35], [43.68, 34.32], [43.65, 34.25], [43.68, 34.18], [43.75, 34.15], [43.82, 34.18]], [[40.88, 37.2], [40.82, 37.32], [40.75, 37.35], [40.68, 37.32], [40.65, 37.25], [40.7, 37.13], [40.88, 37.2]]]]}, "2011-06-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.47, 29.53], [44.0, 29.75], [44.53, 29.53], [44.68, 29.18], [44.75, 29.15], [45.0, 29.25], [45.25, 29.15], [45.32, 29.18], [45.47, 29.53], [45.82, 29.68], [45.97, 30.03], [46.5, 30.25], [47.03, 30.03], [47.18, 29.68], [47.25, 29.65], [47.5, 29.75], [48.03, 29.53], [48.25, 29.0], [48.15, 28.75], [48.25, 28.5], [48.03, 27.97], [47.5, 27.75], [46.97, 27.97], [46.82, 28.32], [46.75, 28.35], [46.63, 28.3], [46.75, 28.0], [46.65, 27.75], [46.75, 27.5], [46.65, 27.25], [46.75, 27.0], [46.53, 26.47], [46.0, 26.25], [45.75, 26.35], [45.5, 26.25], [44.97, 26.47], [44.82, 26.82], [44.47, 26.97], [44.32, 27.32], [43.97, 27.47], [43.82, 27.82], [43.47, 27.97], [43.25, 28.5], [43.35, 28.75], [43.25, 29.0], [43.47, 29.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.0273482806948095}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.577534045210962}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.90466097203148, 26.21915302126706, 27.015618891423628, 26.54393347233821, 29.175806240007944, 32.743242410917674]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.941198544742917, 8.958559081544479, 7.626056892702707, 8.515388180150069, 14.978330824186571, 31.677188141870545]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.1057534223933203, -3.035952778859433, -3.527446792001146, -4.186055166376314, -3.341842904049664, -2.4399468400755637]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.3362224438670296, -4.2702813281254635, -5.620168364495669, -6.0273482806948095, -4.264841037421377, -2.641389284550087]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.344908066614818, -1.5742878607063902, -1.892603434086246, -2.2274891083470956, -1.76699743138496, -1.3113300111843893]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3734773537289842, -1.9781613110330265, -2.829339085531005, -2.856536117973023, -2.49312006934697, -1.3973475501309953]}}