{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:17.344497", "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": "2019-Aug-11_to_2019-Aug-13_352.0_44.0"}, "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": 2019080000391}, "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 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 13 2019"}, "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": 64155.27827153861}, "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": ["Spain"]}, "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": ["Bay of Biscay", "North Atlantic Ocean"]}, "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": 44.0}, "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": 352.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "352.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 350.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 354.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 42.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 45.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-08-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.18, 45.18], [-9.03, 45.53], [-8.68, 45.68], [-8.53, 46.03], [-8.0, 46.25], [-7.75, 46.15], [-7.5, 46.25], [-7.25, 46.15], [-7.0, 46.25], [-6.75, 46.15], [-6.5, 46.25], [-6.25, 46.15], [-6.0, 46.25], [-5.47, 46.03], [-5.25, 45.5], [-5.47, 44.97], [-5.82, 44.82], [-5.85, 44.75], [-5.75, 44.5], [-5.97, 43.97], [-6.32, 43.82], [-6.47, 43.47], [-7.0, 43.25], [-7.25, 43.35], [-7.32, 43.32], [-7.35, 43.25], [-7.25, 43.0], [-7.35, 42.75], [-7.25, 42.5], [-7.47, 41.97], [-8.0, 41.75], [-8.25, 41.85], [-8.5, 41.75], [-9.03, 41.97], [-9.18, 42.32], [-9.53, 42.47], [-9.75, 43.0], [-9.62, 43.3], [-10.03, 43.47], [-10.25, 44.0], [-10.03, 44.53], [-9.68, 44.68], [-9.53, 45.03], [-9.18, 45.18]]]]}, "2019-08-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.18, 45.18], [-9.03, 45.53], [-8.68, 45.68], [-8.53, 46.03], [-8.0, 46.25], [-7.75, 46.15], [-7.5, 46.25], [-7.25, 46.15], [-7.0, 46.25], [-6.75, 46.15], [-6.5, 46.25], [-6.25, 46.15], [-6.0, 46.25], [-5.47, 46.03], [-5.25, 45.5], [-5.47, 44.97], [-5.82, 44.82], [-5.85, 44.75], [-5.75, 44.5], [-5.97, 43.97], [-6.32, 43.82], [-6.47, 43.47], [-7.0, 43.25], [-7.25, 43.35], [-7.32, 43.32], [-7.35, 43.25], [-7.25, 43.0], [-7.35, 42.75], [-7.25, 42.5], [-7.47, 41.97], [-8.0, 41.75], [-8.25, 41.85], [-8.5, 41.75], [-9.03, 41.97], [-9.18, 42.32], [-9.53, 42.47], [-9.75, 43.0], [-9.62, 43.3], [-10.03, 43.47], [-10.25, 44.0], [-10.03, 44.53], [-9.68, 44.68], [-9.53, 45.03], [-9.18, 45.18]]]]}, "2019-08-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-9.18, 45.18], [-9.03, 45.53], [-8.68, 45.68], [-8.53, 46.03], [-8.0, 46.25], [-7.75, 46.15], [-7.5, 46.25], [-7.25, 46.15], [-7.0, 46.25], [-6.75, 46.15], [-6.5, 46.25], [-6.25, 46.15], [-6.0, 46.25], [-5.47, 46.03], [-5.25, 45.5], [-5.47, 44.97], [-5.82, 44.82], [-5.85, 44.75], [-5.75, 44.5], [-5.97, 43.97], [-6.32, 43.82], [-6.47, 43.47], [-7.0, 43.25], [-7.25, 43.35], [-7.32, 43.32], [-7.35, 43.25], [-7.25, 43.0], [-7.35, 42.75], [-7.25, 42.5], [-7.47, 41.97], [-8.0, 41.75], [-8.25, 41.85], [-8.5, 41.75], [-9.03, 41.97], [-9.18, 42.32], [-9.53, 42.47], [-9.75, 43.0], [-9.62, 43.3], [-10.03, 43.47], [-10.25, 44.0], [-10.03, 44.53], [-9.68, 44.68], [-9.53, 45.03], [-9.18, 45.18]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.256130825202149}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.7654039383334197}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.107702080530373, 16.984856132493803, 17.3188612050281]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [14.439710011835302, 14.211714584224637, 14.955235778131907]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.8054477630550914, -1.9150035048140397, -1.575760547131128]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.256130825202149, -3.9935277678499688, -3.3320385970504276]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6265552383415416, -1.8196916418270488, -1.5166891453070048]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0492086812336514, -1.97221213779104, -1.7297281889293525]}}