{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:05:22.807366", "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-May-15_to_2016-May-17_11.0_49.0"}, "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": 2016050000452}, "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 15 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 17 2016"}, "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": 54670.97078288656}, "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": ["Austria", "Czech Republic", "Germany"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["West&Central-Europe"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe"]}, "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": 49.0}, "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": 11.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "11.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 9.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 14.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 48.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 50.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-05-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.97, 48.47], [8.75, 49.0], [8.97, 49.53], [9.5, 49.75], [9.75, 49.65], [10.0, 49.75], [10.25, 49.65], [10.32, 49.68], [10.47, 50.03], [10.82, 50.18], [10.97, 50.53], [11.5, 50.75], [11.75, 50.65], [12.0, 50.75], [12.53, 50.53], [12.68, 50.18], [12.75, 50.15], [13.0, 50.25], [13.25, 50.15], [13.5, 50.25], [14.0, 50.04], [14.5, 50.25], [15.03, 50.03], [15.25, 49.5], [15.15, 49.25], [15.25, 49.0], [15.15, 48.75], [15.25, 48.5], [15.03, 47.97], [14.5, 47.75], [14.25, 47.85], [14.0, 47.75], [13.75, 47.85], [13.5, 47.75], [13.25, 47.85], [13.0, 47.75], [12.75, 47.85], [12.5, 47.75], [12.25, 47.85], [12.0, 47.75], [11.5, 47.96], [11.0, 47.75], [10.47, 47.97], [10.32, 48.32], [10.25, 48.35], [10.0, 48.25], [9.75, 48.35], [9.5, 48.25], [8.97, 48.47]]]]}, "2016-05-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.97, 48.47], [8.75, 49.0], [8.97, 49.53], [9.5, 49.75], [9.75, 49.65], [10.0, 49.75], [10.25, 49.65], [10.32, 49.68], [10.47, 50.03], [10.82, 50.18], [10.97, 50.53], [11.5, 50.75], [11.75, 50.65], [12.0, 50.75], [12.53, 50.53], [12.68, 50.18], [12.75, 50.15], [13.0, 50.25], [13.25, 50.15], [13.5, 50.25], [14.0, 50.04], [14.5, 50.25], [15.03, 50.03], [15.25, 49.5], [15.15, 49.25], [15.25, 49.0], [15.15, 48.75], [15.25, 48.5], [15.03, 47.97], [14.5, 47.75], [14.25, 47.85], [14.0, 47.75], [13.75, 47.85], [13.5, 47.75], [13.25, 47.85], [13.0, 47.75], [12.75, 47.85], [12.5, 47.75], [12.25, 47.85], [12.0, 47.75], [11.5, 47.96], [11.0, 47.75], [10.47, 47.97], [10.32, 48.32], [10.25, 48.35], [10.0, 48.25], [9.75, 48.35], [9.5, 48.25], [8.97, 48.47]]]]}, "2016-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[8.97, 48.47], [8.75, 49.0], [8.97, 49.53], [9.5, 49.75], [9.75, 49.65], [10.0, 49.75], [10.25, 49.65], [10.32, 49.68], [10.47, 50.03], [10.82, 50.18], [10.97, 50.53], [11.5, 50.75], [11.75, 50.65], [12.0, 50.75], [12.53, 50.53], [12.68, 50.18], [12.75, 50.15], [13.0, 50.25], [13.25, 50.15], [13.5, 50.25], [14.0, 50.04], [14.5, 50.25], [15.03, 50.03], [15.25, 49.5], [15.15, 49.25], [15.25, 49.0], [15.15, 48.75], [15.25, 48.5], [15.03, 47.97], [14.5, 47.75], [14.25, 47.85], [14.0, 47.75], [13.75, 47.85], [13.5, 47.75], [13.25, 47.85], [13.0, 47.75], [12.75, 47.85], [12.5, 47.75], [12.25, 47.85], [12.0, 47.75], [11.5, 47.96], [11.0, 47.75], [10.47, 47.97], [10.32, 48.32], [10.25, 48.35], [10.0, 48.25], [9.75, 48.35], [9.5, 48.25], [8.97, 48.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -7.6181400219229545}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.115611369251452}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [6.528526207661741, 6.10038590020207, 7.91525833255298]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [4.145073483763952, 3.618954456098379, 5.197866684285202]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.292234244208007, -6.832757945333033, -5.2218419182133164]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.803204615967047, -7.6181400219229545, -5.967695737513054]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.7351909880767618, -1.9011163230306631, -1.4823827966271432]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.872953733160108, -2.088748246476827, -1.6301981229291491]}}