{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:30:59.534645", "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": "2022-May-27_to_2022-May-31_75.0_43.0"}, "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": 2022050000988}, "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": "May 27 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 31 2022"}, "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": 165018.8948107834}, "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": ["Kazakhstan", "Kyrgyzstan", "Tajikistan", "Uzbekistan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.C.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": 43.0}, "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": 75.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "75.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 67.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 75.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 39.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 44.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-05-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[68.0, 40.75], [68.53, 40.53], [68.75, 40.0], [68.53, 39.47], [68.0, 39.25], [67.47, 39.47], [67.25, 40.0], [67.47, 40.53], [68.0, 40.75]]]]}, "2022-05-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[67.25, 40.0], [67.47, 40.53], [68.0, 40.75], [68.25, 40.65], [68.5, 40.75], [68.75, 40.65], [68.88, 40.7], [68.75, 41.0], [68.85, 41.25], [68.75, 41.5], [68.85, 41.75], [68.75, 42.0], [68.97, 42.53], [69.32, 42.68], [69.47, 43.03], [69.82, 43.18], [69.85, 43.25], [69.75, 43.5], [69.97, 44.03], [70.32, 44.18], [70.47, 44.53], [71.0, 44.75], [71.25, 44.65], [71.32, 44.68], [71.47, 45.03], [72.0, 45.25], [72.25, 45.15], [72.5, 45.25], [72.75, 45.15], [73.0, 45.25], [73.53, 45.03], [73.68, 44.68], [74.03, 44.53], [74.18, 44.18], [74.25, 44.15], [74.5, 44.25], [74.75, 44.15], [75.0, 44.25], [75.53, 44.03], [75.68, 43.68], [76.03, 43.53], [76.25, 43.0], [76.03, 42.47], [75.5, 42.25], [75.25, 42.35], [75.0, 42.25], [74.75, 42.35], [74.5, 42.25], [74.25, 42.35], [74.0, 42.25], [74.53, 42.03], [74.75, 41.5], [74.65, 41.25], [74.75, 41.0], [74.53, 40.47], [74.18, 40.32], [74.03, 39.97], [73.5, 39.75], [73.25, 39.85], [73.0, 39.75], [72.75, 39.85], [72.68, 39.82], [72.53, 39.47], [72.0, 39.25], [71.75, 39.35], [71.5, 39.25], [71.0, 39.46], [70.5, 39.25], [70.25, 39.35], [70.0, 39.25], [69.75, 39.35], [69.5, 39.25], [69.25, 39.35], [69.18, 39.32], [69.03, 38.97], [68.5, 38.75], [67.97, 38.97], [67.82, 39.32], [67.47, 39.47], [67.25, 40.0]], [[73.75, 42.35], [73.5, 42.25], [73.75, 42.15], [74.0, 42.25], [73.75, 42.35]], [[73.25, 42.35], [73.18, 42.32], [73.15, 42.25], [73.18, 42.18], [73.25, 42.15], [73.5, 42.25], [73.25, 42.35]], [[70.82, 41.68], [70.88, 41.8], [70.75, 41.85], [70.68, 41.82], [70.65, 41.75], [70.68, 41.68], [70.75, 41.65], [70.82, 41.68]]]]}, "2022-05-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[67.25, 40.0], [67.47, 40.53], [68.0, 40.75], [68.25, 40.65], [68.5, 40.75], [68.75, 40.65], [68.88, 40.7], [68.75, 41.0], [68.85, 41.25], [68.75, 41.5], [68.85, 41.75], [68.75, 42.0], [68.97, 42.53], [69.32, 42.68], [69.47, 43.03], [69.82, 43.18], [69.85, 43.25], [69.75, 43.5], [69.97, 44.03], [70.32, 44.18], [70.47, 44.53], [71.0, 44.75], [71.25, 44.65], [71.32, 44.68], [71.47, 45.03], [72.0, 45.25], [72.25, 45.15], [72.5, 45.25], [72.75, 45.15], [73.0, 45.25], [73.53, 45.03], [73.68, 44.68], [74.03, 44.53], [74.18, 44.18], [74.25, 44.15], [74.5, 44.25], [74.75, 44.15], [75.0, 44.25], [75.53, 44.03], [75.68, 43.68], [76.03, 43.53], [76.25, 43.0], [76.03, 42.47], [75.5, 42.25], [75.25, 42.35], [75.0, 42.25], [74.75, 42.35], [74.5, 42.25], [74.25, 42.35], [74.0, 42.25], [74.53, 42.03], [74.75, 41.5], [74.65, 41.25], [74.75, 41.0], [74.53, 40.47], [74.18, 40.32], [74.03, 39.97], [73.5, 39.75], [73.25, 39.85], [73.0, 39.75], [72.75, 39.85], [72.68, 39.82], [72.53, 39.47], [72.0, 39.25], [71.75, 39.35], [71.5, 39.25], [71.0, 39.46], [70.5, 39.25], [70.25, 39.35], [70.0, 39.25], [69.75, 39.35], [69.5, 39.25], [69.25, 39.35], [69.18, 39.32], [69.03, 38.97], [68.5, 38.75], [67.97, 38.97], [67.82, 39.32], [67.47, 39.47], [67.25, 40.0]], [[73.75, 42.35], [73.63, 42.3], [73.68, 42.18], [73.75, 42.15], [74.0, 42.25], [73.75, 42.35]], [[70.82, 41.68], [70.88, 41.8], [70.75, 41.85], [70.68, 41.82], [70.65, 41.75], [70.68, 41.68], [70.75, 41.65], [70.82, 41.68]]]]}, "2022-05-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[67.25, 40.0], [67.47, 40.53], [68.0, 40.75], [68.25, 40.65], [68.5, 40.75], [68.75, 40.65], [68.88, 40.7], [68.75, 41.0], [68.85, 41.25], [68.75, 41.5], [68.85, 41.75], [68.75, 42.0], [68.97, 42.53], [69.32, 42.68], [69.47, 43.03], [69.82, 43.18], [69.85, 43.25], [69.75, 43.5], [69.97, 44.03], [70.32, 44.18], [70.47, 44.53], [71.0, 44.75], [71.25, 44.65], [71.32, 44.68], [71.47, 45.03], [72.0, 45.25], [72.25, 45.15], [72.5, 45.25], [72.75, 45.15], [73.0, 45.25], [73.53, 45.03], [73.68, 44.68], [74.03, 44.53], [74.18, 44.18], [74.25, 44.15], [74.5, 44.25], [74.75, 44.15], [75.0, 44.25], [75.53, 44.03], [75.68, 43.68], [76.03, 43.53], [76.25, 43.0], [76.03, 42.47], [75.5, 42.25], [75.25, 42.35], [75.0, 42.25], [74.75, 42.35], [74.5, 42.25], [74.25, 42.35], [74.0, 42.25], [74.53, 42.03], [74.75, 41.5], [74.65, 41.25], [74.75, 41.0], [74.53, 40.47], [74.18, 40.32], [74.03, 39.97], [73.5, 39.75], [73.25, 39.85], [73.0, 39.75], [72.75, 39.85], [72.68, 39.82], [72.53, 39.47], [72.0, 39.25], [71.75, 39.35], [71.5, 39.25], [71.0, 39.46], [70.5, 39.25], [70.25, 39.35], [70.0, 39.25], [69.75, 39.35], [69.5, 39.25], [69.25, 39.35], [69.18, 39.32], [69.03, 38.97], [68.5, 38.75], [67.97, 38.97], [67.82, 39.32], [67.47, 39.47], [67.25, 40.0]], [[73.75, 42.35], [73.63, 42.3], [73.68, 42.18], [73.75, 42.15], [74.0, 42.25], [73.75, 42.35]], [[70.82, 41.68], [70.88, 41.8], [70.75, 41.85], [70.68, 41.82], [70.65, 41.75], [70.68, 41.68], [70.75, 41.65], [70.82, 41.68]]]]}, "2022-05-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[72.47, 41.47], [72.25, 42.0], [72.47, 42.53], [73.0, 42.75], [73.53, 42.53], [73.75, 42.0], [73.53, 41.47], [73.0, 41.25], [72.47, 41.47]]], [[[73.97, 44.03], [74.5, 44.25], [75.03, 44.03], [75.18, 43.68], [75.25, 43.65], [75.5, 43.75], [76.03, 43.53], [76.25, 43.0], [76.03, 42.47], [75.5, 42.25], [75.25, 42.35], [75.0, 42.25], [74.47, 42.47], [74.32, 42.82], [73.97, 42.97], [73.75, 43.5], [73.97, 44.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.90937273736489}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.21662619857725}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.991580257481985, 12.611046779465028, 12.878673228626269, 13.52688821225803, 11.835100602700322]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.991580257481985, 3.1867449199129965, 2.7148849786099163, 2.286885358714869, 8.246908594166541]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.120952813661177, -5.466590081283673, -5.338759380721938, -4.923843890689263, -4.125369890146459]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.120952813661177, -7.412473299214014, -7.90937273736489, -6.341452363173232, -5.017267931078891]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5259549366384726, -1.888369479264456, -1.8508649822017114, -1.732033367300306, -1.4309498650852595]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5259549366384726, -2.369834443933311, -2.47750399085361, -2.134620680133874, -1.4763624847794845]}}