{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:53:38.154736", "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": "2026-Jun-10_to_2026-Jun-12_15.0_48.5"}, "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": 2026060000382}, "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 10 2026"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 12 2026"}, "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": 75207.87294963925}, "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", "Poland"]}, "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": 48.5}, "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": 15.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "15.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 12.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 17.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 47.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 50.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2026-06-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.0, 49.75], [13.25, 49.65], [13.5, 49.75], [13.75, 49.65], [13.82, 49.68], [13.97, 50.03], [14.5, 50.25], [14.75, 50.15], [14.88, 50.2], [14.75, 50.5], [14.97, 51.03], [15.5, 51.25], [15.75, 51.15], [16.0, 51.25], [16.25, 51.15], [16.5, 51.25], [17.03, 51.03], [17.18, 50.68], [17.53, 50.53], [17.75, 50.0], [17.65, 49.75], [17.75, 49.5], [17.65, 49.25], [17.75, 49.0], [17.53, 48.47], [17.0, 48.25], [16.75, 48.35], [16.5, 48.25], [16.25, 48.35], [16.18, 48.32], [16.15, 48.25], [16.25, 48.0], [16.15, 47.75], [16.25, 47.5], [16.03, 46.97], [15.5, 46.75], [15.25, 46.85], [15.0, 46.75], [14.75, 46.85], [14.5, 46.75], [14.25, 46.85], [14.0, 46.75], [13.75, 46.85], [13.5, 46.75], [12.97, 46.97], [12.75, 47.5], [12.88, 47.8], [12.75, 47.85], [12.5, 47.75], [11.97, 47.97], [11.75, 48.5], [11.97, 49.03], [12.32, 49.18], [12.47, 49.53], [13.0, 49.75]]]]}, "2026-06-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.0, 49.75], [13.25, 49.65], [13.5, 49.75], [13.75, 49.65], [13.82, 49.68], [13.97, 50.03], [14.5, 50.25], [14.75, 50.15], [14.88, 50.2], [14.75, 50.5], [14.97, 51.03], [15.5, 51.25], [15.75, 51.15], [16.0, 51.25], [16.25, 51.15], [16.5, 51.25], [17.03, 51.03], [17.18, 50.68], [17.53, 50.53], [17.75, 50.0], [17.65, 49.75], [17.75, 49.5], [17.65, 49.25], [17.75, 49.0], [17.53, 48.47], [17.0, 48.25], [16.75, 48.35], [16.5, 48.25], [16.25, 48.35], [16.18, 48.32], [16.15, 48.25], [16.25, 48.0], [16.15, 47.75], [16.25, 47.5], [16.03, 46.97], [15.5, 46.75], [15.25, 46.85], [15.0, 46.75], [14.75, 46.85], [14.5, 46.75], [14.25, 46.85], [14.0, 46.75], [13.75, 46.85], [13.5, 46.75], [12.97, 46.97], [12.75, 47.5], [12.88, 47.8], [12.75, 47.85], [12.5, 47.75], [11.97, 47.97], [11.75, 48.5], [11.97, 49.03], [12.32, 49.18], [12.47, 49.53], [13.0, 49.75]]]]}, "2026-06-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.0, 49.75], [13.25, 49.65], [13.5, 49.75], [13.75, 49.65], [13.82, 49.68], [13.97, 50.03], [14.5, 50.25], [14.75, 50.15], [14.88, 50.2], [14.75, 50.5], [14.97, 51.03], [15.5, 51.25], [15.75, 51.15], [16.0, 51.25], [16.25, 51.15], [16.5, 51.25], [17.03, 51.03], [17.18, 50.68], [17.53, 50.53], [17.75, 50.0], [17.65, 49.75], [17.75, 49.5], [17.65, 49.25], [17.75, 49.0], [17.53, 48.47], [17.0, 48.25], [16.75, 48.35], [16.5, 48.25], [16.25, 48.35], [16.18, 48.32], [16.15, 48.25], [16.25, 48.0], [16.15, 47.75], [16.25, 47.5], [16.03, 46.97], [15.5, 46.75], [15.25, 46.85], [15.0, 46.75], [14.75, 46.85], [14.5, 46.75], [14.25, 46.85], [14.0, 46.75], [13.75, 46.85], [13.5, 46.75], [12.97, 46.97], [12.75, 47.5], [12.88, 47.8], [12.75, 47.85], [12.5, 47.75], [11.97, 47.97], [11.75, 48.5], [11.97, 49.03], [12.32, 49.18], [12.47, 49.53], [13.0, 49.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.584175052141347}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.221586647351884}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.007548028069607, 10.57186836036476, 11.522587248656123]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.217190043131552, 5.286780293782556, 7.111089324951195]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.226200562924806, -5.679613375999793, -4.758946003131054]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.878598979914386, -6.584175052141347, -5.743428697890806]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.433723149716303, -1.5694830568764622, -1.3276298699396836]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.552650589420342, -1.7066784454967916, -1.522133300827449]}}