{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:48.471395", "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": "2014-Jul-07_to_2014-Jul-11_7.5_46.5"}, "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": 2014070000420}, "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": "July 07 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 11 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 167611.51889431156}, "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", "Italy", "Switzerland"]}, "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": ["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": 46.5}, "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": 7.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "7.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 1.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 10.25}, "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": 48.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-07-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.32, 44.68], [2.47, 45.03], [3.0, 45.25], [3.25, 45.15], [3.5, 45.25], [3.75, 45.15], [4.0, 45.25], [4.25, 45.15], [4.5, 45.25], [5.03, 45.03], [5.18, 44.68], [5.53, 44.53], [5.68, 44.18], [6.03, 44.03], [6.25, 43.5], [6.03, 42.97], [5.5, 42.75], [5.25, 42.85], [5.0, 42.75], [4.47, 42.97], [4.32, 43.32], [4.25, 43.35], [4.0, 43.25], [3.5, 43.46], [3.18, 43.32], [3.03, 42.97], [2.5, 42.75], [2.25, 42.85], [2.0, 42.75], [1.47, 42.97], [1.25, 43.5], [1.47, 44.03], [1.82, 44.18], [1.97, 44.53], [2.32, 44.68]]]]}, "2014-07-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[1.75, 45.0], [1.97, 45.53], [2.5, 45.75], [2.75, 45.65], [3.0, 45.75], [3.53, 45.53], [3.68, 45.18], [3.75, 45.15], [4.0, 45.25], [4.25, 45.15], [4.32, 45.18], [4.35, 45.25], [4.25, 45.5], [4.47, 46.03], [4.82, 46.18], [4.85, 46.25], [4.82, 46.32], [4.47, 46.47], [4.32, 46.82], [3.97, 46.97], [3.82, 47.32], [3.75, 47.35], [3.5, 47.25], [3.25, 47.35], [3.0, 47.25], [2.47, 47.47], [2.32, 47.82], [1.97, 47.97], [1.75, 48.5], [1.97, 49.03], [2.5, 49.25], [2.75, 49.15], [3.0, 49.25], [3.25, 49.15], [3.5, 49.25], [4.03, 49.03], [4.18, 48.68], [4.25, 48.65], [4.5, 48.75], [5.03, 48.53], [5.18, 48.18], [5.25, 48.15], [5.5, 48.25], [5.75, 48.15], [6.0, 48.25], [6.25, 48.15], [6.5, 48.25], [6.75, 48.15], [7.0, 48.25], [7.53, 48.03], [7.68, 47.68], [8.0, 47.54], [8.5, 47.75], [8.75, 47.65], [9.0, 47.75], [9.53, 47.53], [9.68, 47.18], [9.75, 47.15], [10.0, 47.25], [10.53, 47.03], [10.75, 46.5], [10.53, 45.97], [10.0, 45.75], [9.75, 45.85], [9.5, 45.75], [9.25, 45.85], [9.0, 45.75], [8.75, 45.85], [8.68, 45.82], [8.53, 45.47], [8.18, 45.32], [8.03, 44.97], [7.68, 44.82], [7.53, 44.47], [7.18, 44.32], [7.03, 43.97], [6.62, 43.8], [6.75, 43.5], [6.53, 42.97], [6.0, 42.75], [5.75, 42.85], [5.5, 42.75], [5.25, 42.85], [5.0, 42.75], [4.47, 42.97], [4.32, 43.32], [4.25, 43.35], [4.0, 43.25], [3.5, 43.46], [3.18, 43.32], [3.03, 42.97], [2.5, 42.75], [2.25, 42.85], [2.0, 42.75], [1.47, 42.97], [1.25, 43.5], [1.47, 44.03], [1.82, 44.18], [1.96, 44.5], [1.75, 45.0]]]]}, "2014-07-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[1.75, 45.0], [1.97, 45.53], [2.5, 45.75], [2.75, 45.65], [3.0, 45.75], [3.43, 45.57], [3.25, 46.0], [3.35, 46.25], [3.25, 46.5], [3.35, 46.75], [3.32, 46.82], [2.97, 46.97], [2.82, 47.32], [2.47, 47.47], [2.32, 47.82], [1.97, 47.97], [1.75, 48.5], [1.97, 49.03], [2.5, 49.25], [2.75, 49.15], [3.0, 49.25], [3.25, 49.15], [3.5, 49.25], [4.03, 49.03], [4.18, 48.68], [4.25, 48.65], [4.5, 48.75], [5.03, 48.53], [5.18, 48.18], [5.25, 48.15], [5.5, 48.25], [5.75, 48.15], [6.0, 48.25], [6.25, 48.15], [6.5, 48.25], [6.75, 48.15], [7.0, 48.25], [7.53, 48.03], [7.68, 47.68], [8.0, 47.54], [8.5, 47.75], [8.75, 47.65], [9.0, 47.75], [9.53, 47.53], [9.68, 47.18], [9.75, 47.15], [10.0, 47.25], [10.53, 47.03], [10.75, 46.5], [10.53, 45.97], [10.0, 45.75], [9.75, 45.85], [9.5, 45.75], [9.25, 45.85], [9.0, 45.75], [8.75, 45.85], [8.68, 45.82], [8.53, 45.47], [8.18, 45.32], [8.03, 44.97], [7.68, 44.82], [7.53, 44.47], [7.18, 44.32], [7.03, 43.97], [6.62, 43.8], [6.75, 43.5], [6.53, 42.97], [6.0, 42.75], [5.75, 42.85], [5.5, 42.75], [5.25, 42.85], [5.0, 42.75], [4.47, 42.97], [4.32, 43.32], [4.25, 43.35], [4.0, 43.25], [3.5, 43.46], [3.18, 43.32], [3.03, 42.97], [2.5, 42.75], [2.25, 42.85], [2.0, 42.75], [1.47, 42.97], [1.25, 43.5], [1.47, 44.03], [1.82, 44.18], [1.96, 44.5], [1.75, 45.0]], [[3.75, 45.15], [3.88, 45.2], [3.82, 45.32], [3.57, 45.43], [3.68, 45.18], [3.75, 45.15]]]]}, "2014-07-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[1.75, 45.0], [1.97, 45.53], [2.5, 45.75], [2.75, 45.65], [3.0, 45.75], [3.43, 45.57], [3.25, 46.0], [3.35, 46.25], [3.25, 46.5], [3.35, 46.75], [3.32, 46.82], [2.97, 46.97], [2.82, 47.32], [2.47, 47.47], [2.32, 47.82], [1.97, 47.97], [1.75, 48.5], [1.97, 49.03], [2.5, 49.25], [2.75, 49.15], [3.0, 49.25], [3.25, 49.15], [3.5, 49.25], [4.03, 49.03], [4.18, 48.68], [4.25, 48.65], [4.5, 48.75], [5.03, 48.53], [5.18, 48.18], [5.25, 48.15], [5.5, 48.25], [5.75, 48.15], [6.0, 48.25], [6.25, 48.15], [6.5, 48.25], [6.75, 48.15], [7.0, 48.25], [7.53, 48.03], [7.68, 47.68], [8.0, 47.54], [8.5, 47.75], [8.75, 47.65], [9.0, 47.75], [9.53, 47.53], [9.68, 47.18], [9.75, 47.15], [10.0, 47.25], [10.53, 47.03], [10.75, 46.5], [10.53, 45.97], [10.0, 45.75], [9.75, 45.85], [9.5, 45.75], [9.25, 45.85], [9.0, 45.75], [8.75, 45.85], [8.68, 45.82], [8.53, 45.47], [8.18, 45.32], [8.03, 44.97], [7.68, 44.82], [7.53, 44.47], [7.18, 44.32], [7.03, 43.97], [6.62, 43.8], [6.75, 43.5], [6.53, 42.97], [6.0, 42.75], [5.75, 42.85], [5.5, 42.75], [5.25, 42.85], [5.0, 42.75], [4.47, 42.97], [4.32, 43.32], [4.25, 43.35], [4.0, 43.25], [3.5, 43.46], [3.0, 43.25], [2.47, 43.47], [2.25, 44.0], [2.35, 44.25], [2.32, 44.32], [1.97, 44.47], [1.75, 45.0]], [[3.82, 45.32], [3.57, 45.43], [3.68, 45.18], [3.75, 45.15], [3.88, 45.2], [3.82, 45.32]]]]}, "2014-07-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[2.97, 48.03], [3.5, 48.25], [3.75, 48.15], [4.0, 48.25], [4.53, 48.03], [4.75, 47.5], [4.65, 47.25], [4.68, 47.18], [5.03, 47.03], [5.18, 46.68], [5.53, 46.53], [5.68, 46.18], [6.03, 46.03], [6.25, 45.5], [6.03, 44.97], [5.68, 44.82], [5.65, 44.75], [5.75, 44.5], [5.53, 43.97], [5.0, 43.75], [4.47, 43.97], [4.25, 44.5], [4.35, 44.75], [4.32, 44.82], [3.97, 44.97], [3.82, 45.32], [3.47, 45.47], [3.25, 46.0], [3.35, 46.25], [3.25, 46.5], [3.35, 46.75], [3.32, 46.82], [2.97, 46.97], [2.75, 47.5], [2.97, 48.03]]], [[[8.03, 47.03], [8.25, 46.5], [8.03, 45.97], [7.68, 45.82], [7.53, 45.47], [7.0, 45.25], [6.47, 45.47], [6.25, 46.0], [6.47, 46.53], [6.82, 46.68], [6.97, 47.03], [7.5, 47.25], [8.03, 47.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -8.685265944474622}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -5.478186331917122}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.239290534182032, 12.392890103200216, 11.692341738647656, 11.460238582748389, 14.028858077450082]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [11.848282961915913, 0.4710252989841024, 0.03159651420475029, 0.23332064550419318, 6.069494604384147]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.566083412277106, -4.8187771244695465, -5.837390880796556, -5.987344850692968, -4.844341021315176]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-5.4463172011651295, -8.194338726361025, -8.632765279439184, -8.685265944474622, -5.606033674552066]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6983430979467502, -1.573777888279525, -1.868981231113059, -1.879154375963611, -1.431369721794723]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.1564271957082295, -2.316567486045731, -2.4752778732366947, -2.4452284725375795, -1.5940151422539184]}}