{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:38.917463", "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-Jun-25_to_2014-Jun-27_346.5_22.0"}, "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": 2014060000979}, "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 25 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 27 2014"}, "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": 51126.394853334954}, "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": ["Mauritania", "Morocco"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": 22.0}, "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": 346.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "346.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 345.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 348.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 21.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 24.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-06-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.53, 25.03], [-14.0, 25.25], [-13.75, 25.15], [-13.5, 25.25], [-12.97, 25.03], [-12.82, 24.68], [-12.75, 24.65], [-12.5, 24.75], [-11.97, 24.53], [-11.75, 24.0], [-11.85, 23.75], [-11.75, 23.5], [-11.85, 23.25], [-11.75, 23.0], [-11.85, 22.75], [-11.82, 22.68], [-11.47, 22.53], [-11.25, 22.0], [-11.47, 21.47], [-12.0, 21.25], [-12.25, 21.35], [-12.5, 21.25], [-13.0, 21.46], [-13.5, 21.25], [-14.03, 21.47], [-14.25, 22.0], [-14.15, 22.25], [-14.25, 22.5], [-14.15, 22.75], [-14.25, 23.0], [-14.15, 23.25], [-14.18, 23.32], [-14.53, 23.47], [-14.75, 24.0], [-14.65, 24.25], [-14.75, 24.5], [-14.53, 25.03]]]]}, "2014-06-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.53, 25.03], [-14.0, 25.25], [-13.75, 25.15], [-13.5, 25.25], [-12.97, 25.03], [-12.82, 24.68], [-12.75, 24.65], [-12.5, 24.75], [-11.97, 24.53], [-11.75, 24.0], [-11.85, 23.75], [-11.75, 23.5], [-11.85, 23.25], [-11.75, 23.0], [-11.85, 22.75], [-11.82, 22.68], [-11.47, 22.53], [-11.25, 22.0], [-11.47, 21.47], [-12.0, 21.25], [-12.25, 21.35], [-12.5, 21.25], [-13.0, 21.46], [-13.5, 21.25], [-14.03, 21.47], [-14.25, 22.0], [-14.15, 22.25], [-14.25, 22.5], [-14.15, 22.75], [-14.25, 23.0], [-14.15, 23.25], [-14.18, 23.32], [-14.53, 23.47], [-14.75, 24.0], [-14.65, 24.25], [-14.75, 24.5], [-14.53, 25.03]]]]}, "2014-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.53, 25.03], [-14.0, 25.25], [-13.75, 25.15], [-13.5, 25.25], [-12.97, 25.03], [-12.82, 24.68], [-12.75, 24.65], [-12.5, 24.75], [-11.97, 24.53], [-11.75, 24.0], [-11.85, 23.75], [-11.75, 23.5], [-11.85, 23.25], [-11.75, 23.0], [-11.85, 22.75], [-11.82, 22.68], [-11.47, 22.53], [-11.25, 22.0], [-11.47, 21.47], [-12.0, 21.25], [-12.25, 21.35], [-12.5, 21.25], [-13.0, 21.46], [-13.5, 21.25], [-14.03, 21.47], [-14.25, 22.0], [-14.15, 22.25], [-14.25, 22.5], [-14.15, 22.75], [-14.25, 23.0], [-14.15, 23.25], [-14.18, 23.32], [-14.53, 23.47], [-14.75, 24.0], [-14.65, 24.25], [-14.75, 24.5], [-14.53, 25.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -5.638425544477343}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.558410484611424}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.083405821838255, 25.3218632469285, 26.335319209119177]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.537863701694164, 22.224612400182934, 22.79170391146863]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.223825850096028, -5.170565690916173, -4.280839912822071]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.835108569898125, -5.638425544477343, -4.6973961020050865]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.211280300597412, -1.5393241698386846, -1.3035305242141482]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.3275853084500575, -1.8526224176772768, -1.498430148066397]}}