{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:07.317647", "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-Aug-11_to_2011-Aug-13_28.5_40.0"}, "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": 2011080000645}, "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": "August 11 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 13 2011"}, "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": 88099.39558784959}, "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": ["Turkiye"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean"]}, "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": ["Black Sea", "Sea of Marmara"]}, "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": 40.0}, "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": 28.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "28.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 27.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 31.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 41.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-08-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.75, 38.5], [26.97, 39.03], [27.32, 39.18], [27.35, 39.25], [27.25, 39.5], [27.35, 39.75], [27.25, 40.0], [27.47, 40.53], [27.82, 40.68], [27.97, 41.03], [28.32, 41.18], [28.35, 41.25], [28.25, 41.5], [28.47, 42.03], [29.0, 42.25], [29.25, 42.15], [29.5, 42.25], [29.75, 42.15], [30.0, 42.25], [30.53, 42.03], [30.75, 41.5], [30.65, 41.25], [30.68, 41.18], [31.03, 41.03], [31.18, 40.68], [31.53, 40.53], [31.68, 40.18], [32.03, 40.03], [32.25, 39.5], [32.03, 38.97], [31.5, 38.75], [31.25, 38.85], [31.0, 38.75], [30.75, 38.85], [30.5, 38.75], [30.25, 38.85], [30.18, 38.82], [30.15, 38.75], [30.25, 38.5], [30.15, 38.25], [30.25, 38.0], [30.03, 37.47], [29.5, 37.25], [29.25, 37.35], [29.0, 37.25], [28.75, 37.35], [28.5, 37.25], [28.25, 37.35], [28.0, 37.25], [27.47, 37.47], [27.32, 37.82], [26.97, 37.97], [26.75, 38.5]]]]}, "2011-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.75, 38.5], [26.97, 39.03], [27.32, 39.18], [27.35, 39.25], [27.25, 39.5], [27.35, 39.75], [27.25, 40.0], [27.47, 40.53], [27.82, 40.68], [27.97, 41.03], [28.32, 41.18], [28.35, 41.25], [28.25, 41.5], [28.47, 42.03], [29.0, 42.25], [29.25, 42.15], [29.5, 42.25], [29.75, 42.15], [30.0, 42.25], [30.53, 42.03], [30.75, 41.5], [30.65, 41.25], [30.68, 41.18], [31.03, 41.03], [31.18, 40.68], [31.53, 40.53], [31.68, 40.18], [32.03, 40.03], [32.25, 39.5], [32.03, 38.97], [31.5, 38.75], [31.25, 38.85], [31.0, 38.75], [30.75, 38.85], [30.5, 38.75], [30.25, 38.85], [30.18, 38.82], [30.15, 38.75], [30.25, 38.5], [30.15, 38.25], [30.25, 38.0], [30.03, 37.47], [29.5, 37.25], [29.25, 37.35], [29.0, 37.25], [28.75, 37.35], [28.5, 37.25], [28.25, 37.35], [28.0, 37.25], [27.47, 37.47], [27.32, 37.82], [26.97, 37.97], [26.75, 38.5]]]]}, "2011-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[26.75, 38.5], [26.97, 39.03], [27.32, 39.18], [27.35, 39.25], [27.25, 39.5], [27.35, 39.75], [27.25, 40.0], [27.47, 40.53], [27.82, 40.68], [27.97, 41.03], [28.32, 41.18], [28.35, 41.25], [28.25, 41.5], [28.47, 42.03], [29.0, 42.25], [29.25, 42.15], [29.5, 42.25], [29.75, 42.15], [30.0, 42.25], [30.53, 42.03], [30.75, 41.5], [30.65, 41.25], [30.68, 41.18], [31.03, 41.03], [31.18, 40.68], [31.53, 40.53], [31.68, 40.18], [32.03, 40.03], [32.25, 39.5], [32.03, 38.97], [31.5, 38.75], [31.25, 38.85], [31.0, 38.75], [30.75, 38.85], [30.5, 38.75], [30.25, 38.85], [30.18, 38.82], [30.15, 38.75], [30.25, 38.5], [30.15, 38.25], [30.25, 38.0], [30.03, 37.47], [29.5, 37.25], [29.25, 37.35], [29.0, 37.25], [28.75, 37.35], [28.5, 37.25], [28.25, 37.35], [28.0, 37.25], [27.47, 37.47], [27.32, 37.82], [26.97, 37.97], [26.75, 38.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.8184630602819425}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.45471451650509}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.234027906230835, 18.93670916035842, 21.13752788265407]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.127896436396043, 14.580752979377678, 16.927135876720797]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.369278193109786, -5.624369914061956, -3.3704954423435294]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.959957988760436, -7.8184630602819425, -4.300375259487566]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.101249500051581, -2.591448027114819, -1.543076088640938]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.96198499426461, -3.1756169474704006, -1.9151600290941746]}}