{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:52.122607", "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-Jun-11_to_2019-Jun-13_2.5_41.0"}, "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": 2019060000396}, "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 11 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 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": 114190.9788636069}, "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": ["France", "Spain"]}, "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": ["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": ["Balearic (Iberian Sea)", "Mediterranean Sea - Western Basin"]}, "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": 41.0}, "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": 2.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "2.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": -1.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 5.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 38.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 43.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-06-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.53, 38.97], [-1.75, 39.5], [-1.53, 40.03], [-1.0, 40.25], [-0.75, 40.15], [-0.5, 40.25], [-0.25, 40.15], [-0.18, 40.18], [-0.15, 40.25], [-0.25, 40.5], [-0.15, 40.75], [-0.25, 41.0], [-0.03, 41.53], [0.5, 41.75], [0.75, 41.65], [1.0, 41.75], [1.25, 41.65], [1.5, 41.75], [1.75, 41.65], [1.82, 41.68], [1.97, 42.03], [2.38, 42.2], [2.25, 42.5], [2.47, 43.03], [2.82, 43.18], [2.85, 43.25], [2.75, 43.5], [2.97, 44.03], [3.5, 44.25], [3.75, 44.15], [4.0, 44.25], [4.25, 44.15], [4.5, 44.25], [5.03, 44.03], [5.25, 43.5], [5.15, 43.25], [5.25, 43.0], [5.15, 42.75], [5.18, 42.68], [5.25, 42.65], [5.5, 42.75], [6.03, 42.53], [6.25, 42.0], [6.03, 41.47], [5.68, 41.32], [5.53, 40.97], [5.18, 40.82], [5.03, 40.47], [4.5, 40.25], [4.25, 40.35], [4.0, 40.25], [3.75, 40.35], [3.5, 40.25], [3.25, 40.35], [3.18, 40.32], [3.03, 39.97], [2.68, 39.82], [2.53, 39.47], [2.0, 39.25], [1.75, 39.35], [1.68, 39.32], [1.65, 39.25], [1.75, 39.0], [1.53, 38.47], [1.18, 38.32], [1.03, 37.97], [0.5, 37.75], [0.25, 37.85], [0.0, 37.75], [-0.53, 37.97], [-0.75, 38.5], [-0.65, 38.75], [-0.68, 38.82], [-0.75, 38.85], [-1.0, 38.75], [-1.53, 38.97]]]]}, "2019-06-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.53, 38.97], [-1.75, 39.5], [-1.53, 40.03], [-1.0, 40.25], [-0.75, 40.15], [-0.5, 40.25], [-0.25, 40.15], [-0.18, 40.18], [-0.15, 40.25], [-0.25, 40.5], [-0.15, 40.75], [-0.25, 41.0], [-0.03, 41.53], [0.5, 41.75], [0.75, 41.65], [1.0, 41.75], [1.25, 41.65], [1.5, 41.75], [1.75, 41.65], [1.82, 41.68], [1.97, 42.03], [2.38, 42.2], [2.25, 42.5], [2.47, 43.03], [2.82, 43.18], [2.85, 43.25], [2.75, 43.5], [2.97, 44.03], [3.5, 44.25], [3.75, 44.15], [4.0, 44.25], [4.25, 44.15], [4.5, 44.25], [5.03, 44.03], [5.25, 43.5], [5.15, 43.25], [5.25, 43.0], [5.15, 42.75], [5.18, 42.68], [5.25, 42.65], [5.5, 42.75], [6.03, 42.53], [6.25, 42.0], [6.03, 41.47], [5.68, 41.32], [5.53, 40.97], [5.18, 40.82], [5.03, 40.47], [4.5, 40.25], [4.25, 40.35], [4.0, 40.25], [3.75, 40.35], [3.5, 40.25], [3.25, 40.35], [3.18, 40.32], [3.03, 39.97], [2.68, 39.82], [2.53, 39.47], [2.0, 39.25], [1.75, 39.35], [1.68, 39.32], [1.65, 39.25], [1.75, 39.0], [1.53, 38.47], [1.18, 38.32], [1.03, 37.97], [0.5, 37.75], [0.25, 37.85], [0.0, 37.75], [-0.53, 37.97], [-0.75, 38.5], [-0.65, 38.75], [-0.68, 38.82], [-0.75, 38.85], [-1.0, 38.75], [-1.53, 38.97]]]]}, "2019-06-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.53, 38.97], [-1.75, 39.5], [-1.53, 40.03], [-1.0, 40.25], [-0.75, 40.15], [-0.5, 40.25], [-0.25, 40.15], [-0.18, 40.18], [-0.15, 40.25], [-0.25, 40.5], [-0.15, 40.75], [-0.25, 41.0], [-0.03, 41.53], [0.5, 41.75], [0.75, 41.65], [1.0, 41.75], [1.25, 41.65], [1.5, 41.75], [1.75, 41.65], [1.82, 41.68], [1.97, 42.03], [2.38, 42.2], [2.25, 42.5], [2.47, 43.03], [2.82, 43.18], [2.85, 43.25], [2.75, 43.5], [2.97, 44.03], [3.5, 44.25], [3.75, 44.15], [4.0, 44.25], [4.25, 44.15], [4.5, 44.25], [5.03, 44.03], [5.25, 43.5], [5.15, 43.25], [5.25, 43.0], [5.15, 42.75], [5.18, 42.68], [5.25, 42.65], [5.5, 42.75], [6.03, 42.53], [6.25, 42.0], [6.03, 41.47], [5.68, 41.32], [5.53, 40.97], [5.18, 40.82], [5.03, 40.47], [4.5, 40.25], [4.25, 40.35], [4.0, 40.25], [3.75, 40.35], [3.5, 40.25], [3.25, 40.35], [3.18, 40.32], [3.03, 39.97], [2.68, 39.82], [2.53, 39.47], [2.0, 39.25], [1.75, 39.35], [1.68, 39.32], [1.65, 39.25], [1.75, 39.0], [1.53, 38.47], [1.18, 38.32], [1.03, 37.97], [0.5, 37.75], [0.25, 37.85], [0.0, 37.75], [-0.53, 37.97], [-0.75, 38.5], [-0.65, 38.75], [-0.68, 38.82], [-0.75, 38.85], [-1.0, 38.75], [-1.53, 38.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.710430601175062}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.9787596158160947}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.12424705792654, 17.018857904391268, 18.099245444027076]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.80530814193736, 15.395925951600077, 16.611850874283448]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.1201352278587597, -3.371961060400759, -2.444182559188766]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.710430601175062, -5.324156521178509, -3.912682720488931]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.9261034131944, -2.053496217555885, -1.4741756726269122]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.4808158472716015, -2.348850150925051, -1.740816054585726]}}