{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:03:11.064960", "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": "2015-Jun-24_to_2015-Jun-26_20.5_44.5"}, "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": 2015060000917}, "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 24 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 26 2015"}, "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": 83847.32586719052}, "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": ["Bosnia and Herzegovina", "Montenegro", "Romania", "Serbia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Mediterranean", "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": 44.5}, "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": 20.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "20.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 17.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 22.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 43.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 46.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-06-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.82, 44.68], [17.97, 45.03], [18.5, 45.25], [18.75, 45.15], [18.82, 45.18], [18.97, 45.53], [19.32, 45.68], [19.47, 46.03], [20.0, 46.25], [20.25, 46.15], [20.5, 46.25], [20.75, 46.15], [21.0, 46.25], [21.25, 46.15], [21.32, 46.18], [21.47, 46.53], [22.0, 46.75], [22.25, 46.65], [22.5, 46.75], [23.03, 46.53], [23.25, 46.0], [23.03, 45.47], [22.68, 45.32], [22.65, 45.25], [22.75, 45.0], [22.65, 44.75], [22.75, 44.5], [22.53, 43.97], [22.18, 43.82], [22.15, 43.75], [22.25, 43.5], [22.03, 42.97], [21.5, 42.75], [21.25, 42.85], [21.0, 42.75], [20.75, 42.85], [20.5, 42.75], [20.25, 42.85], [20.0, 42.75], [19.75, 42.85], [19.5, 42.75], [19.25, 42.85], [19.0, 42.75], [18.75, 42.85], [18.5, 42.75], [18.25, 42.85], [18.0, 42.75], [17.75, 42.85], [17.5, 42.75], [16.97, 42.97], [16.75, 43.5], [16.97, 44.03], [17.32, 44.18], [17.47, 44.53], [17.82, 44.68]]]]}, "2015-06-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.82, 44.68], [17.97, 45.03], [18.5, 45.25], [18.75, 45.15], [18.82, 45.18], [18.97, 45.53], [19.32, 45.68], [19.47, 46.03], [20.0, 46.25], [20.25, 46.15], [20.5, 46.25], [20.75, 46.15], [21.0, 46.25], [21.25, 46.15], [21.32, 46.18], [21.47, 46.53], [22.0, 46.75], [22.25, 46.65], [22.5, 46.75], [23.03, 46.53], [23.25, 46.0], [23.03, 45.47], [22.68, 45.32], [22.65, 45.25], [22.75, 45.0], [22.65, 44.75], [22.75, 44.5], [22.53, 43.97], [22.18, 43.82], [22.15, 43.75], [22.25, 43.5], [22.03, 42.97], [21.5, 42.75], [21.25, 42.85], [21.0, 42.75], [20.75, 42.85], [20.5, 42.75], [20.25, 42.85], [20.0, 42.75], [19.75, 42.85], [19.5, 42.75], [19.25, 42.85], [19.0, 42.75], [18.75, 42.85], [18.5, 42.75], [18.25, 42.85], [18.0, 42.75], [17.75, 42.85], [17.5, 42.75], [16.97, 42.97], [16.75, 43.5], [16.97, 44.03], [17.32, 44.18], [17.47, 44.53], [17.82, 44.68]]]]}, "2015-06-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.82, 44.68], [17.97, 45.03], [18.5, 45.25], [18.75, 45.15], [18.82, 45.18], [18.97, 45.53], [19.32, 45.68], [19.47, 46.03], [20.0, 46.25], [20.25, 46.15], [20.5, 46.25], [20.75, 46.15], [21.0, 46.25], [21.25, 46.15], [21.32, 46.18], [21.47, 46.53], [22.0, 46.75], [22.25, 46.65], [22.5, 46.75], [23.03, 46.53], [23.25, 46.0], [23.03, 45.47], [22.68, 45.32], [22.65, 45.25], [22.75, 45.0], [22.65, 44.75], [22.75, 44.5], [22.53, 43.97], [22.18, 43.82], [22.15, 43.75], [22.25, 43.5], [22.03, 42.97], [21.5, 42.75], [21.25, 42.85], [21.0, 42.75], [20.75, 42.85], [20.5, 42.75], [20.25, 42.85], [20.0, 42.75], [19.75, 42.85], [19.5, 42.75], [19.25, 42.85], [19.0, 42.75], [18.75, 42.85], [18.5, 42.75], [18.25, 42.85], [18.0, 42.75], [17.75, 42.85], [17.5, 42.75], [16.97, 42.97], [16.75, 43.5], [16.97, 44.03], [17.32, 44.18], [17.47, 44.53], [17.82, 44.68]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -9.186031011334535}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -6.285168902455174}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [13.47086014700642, 14.016024399750165, 14.155499806610123]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.566266294402055, 10.960046859153806, 10.135833183464229]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-6.733196885497608, -6.175943179926149, -5.946366641941776]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-9.186031011334535, -6.859588892968759, -7.192556753625581]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8525734700947347, -1.7087377420016623, -1.660041998822035]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.3726674151248623, -2.0017312894042734, -1.9427924626032596]}}