{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:11.497348", "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": "2017-Jun-01_to_2017-Jun-03_46.5_32.0"}, "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": 2017060000045}, "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 01 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 03 2017"}, "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": 128384.43764103742}, "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": 32.0}, "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": 46.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "46.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 42.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 47.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 30.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 34.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-06-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.47, 30.97], [42.25, 31.5], [42.47, 32.03], [43.0, 32.25], [43.25, 32.15], [43.32, 32.18], [43.47, 32.53], [43.82, 32.68], [43.97, 33.03], [44.32, 33.18], [44.47, 33.53], [44.82, 33.68], [44.97, 34.03], [45.32, 34.18], [45.47, 34.53], [46.0, 34.75], [46.25, 34.65], [46.5, 34.75], [46.75, 34.65], [47.0, 34.75], [47.53, 34.53], [47.68, 34.18], [48.03, 34.03], [48.25, 33.5], [48.03, 32.97], [47.68, 32.82], [47.65, 32.75], [47.68, 32.68], [48.03, 32.53], [48.25, 32.0], [48.04, 31.5], [48.25, 31.0], [48.03, 30.47], [47.68, 30.32], [47.53, 29.97], [47.0, 29.75], [46.75, 29.85], [46.5, 29.75], [46.25, 29.85], [46.0, 29.75], [45.75, 29.85], [45.5, 29.75], [45.25, 29.85], [45.0, 29.75], [44.47, 29.97], [44.32, 30.32], [44.25, 30.35], [44.0, 30.25], [43.47, 30.47], [43.32, 30.82], [43.25, 30.85], [43.0, 30.75], [42.47, 30.97]]]]}, "2017-06-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.47, 30.97], [42.25, 31.5], [42.47, 32.03], [43.0, 32.25], [43.25, 32.15], [43.32, 32.18], [43.47, 32.53], [43.82, 32.68], [43.97, 33.03], [44.32, 33.18], [44.47, 33.53], [44.82, 33.68], [44.97, 34.03], [45.32, 34.18], [45.47, 34.53], [46.0, 34.75], [46.25, 34.65], [46.5, 34.75], [46.75, 34.65], [47.0, 34.75], [47.53, 34.53], [47.68, 34.18], [48.03, 34.03], [48.25, 33.5], [48.03, 32.97], [47.68, 32.82], [47.65, 32.75], [47.68, 32.68], [48.03, 32.53], [48.25, 32.0], [48.04, 31.5], [48.25, 31.0], [48.03, 30.47], [47.68, 30.32], [47.53, 29.97], [47.0, 29.75], [46.75, 29.85], [46.5, 29.75], [46.25, 29.85], [46.0, 29.75], [45.75, 29.85], [45.5, 29.75], [45.25, 29.85], [45.0, 29.75], [44.47, 29.97], [44.32, 30.32], [44.25, 30.35], [44.0, 30.25], [43.47, 30.47], [43.32, 30.82], [43.25, 30.85], [43.0, 30.75], [42.47, 30.97]]]]}, "2017-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.47, 30.97], [42.25, 31.5], [42.47, 32.03], [43.0, 32.25], [43.25, 32.15], [43.32, 32.18], [43.47, 32.53], [43.82, 32.68], [43.97, 33.03], [44.32, 33.18], [44.47, 33.53], [44.82, 33.68], [44.97, 34.03], [45.32, 34.18], [45.47, 34.53], [46.0, 34.75], [46.25, 34.65], [46.5, 34.75], [46.75, 34.65], [47.0, 34.75], [47.53, 34.53], [47.68, 34.18], [48.03, 34.03], [48.25, 33.5], [48.03, 32.97], [47.68, 32.82], [47.65, 32.75], [47.68, 32.68], [48.03, 32.53], [48.25, 32.0], [48.04, 31.5], [48.25, 31.0], [48.03, 30.47], [47.68, 30.32], [47.53, 29.97], [47.0, 29.75], [46.75, 29.85], [46.5, 29.75], [46.25, 29.85], [46.0, 29.75], [45.75, 29.85], [45.5, 29.75], [45.25, 29.85], [45.0, 29.75], [44.47, 29.97], [44.32, 30.32], [44.25, 30.35], [44.0, 30.25], [43.47, 30.47], [43.32, 30.82], [43.25, 30.85], [43.0, 30.75], [42.47, 30.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.18958162155792}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.9781925462952916}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [29.629309645774413, 29.09892324159904, 30.008243795890394]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.33836300199772, 16.731038125696102, 18.416389864608334]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.8093399137259105, -4.439955309841484, -3.685282415318483]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.758957380122695, -5.18958162155792, -4.290987381434775]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.624309486970593, -1.9122495463548126, -1.6150922229490088]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9827085885018838, -2.19681762405842, -1.961683624259899]}}