{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:23.752155", "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-May-17_to_2014-May-19_349.0_10.5"}, "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": 2014050000724}, "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": "May 17 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 19 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": 57755.242741262104}, "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": ["Guinea", "Mali"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Western-Africa"]}, "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": 10.5}, "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": 349.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "349.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 348.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 352.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 9.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 11.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.25, 10.5], [-12.03, 11.03], [-11.5, 11.25], [-11.25, 11.15], [-11.0, 11.25], [-10.75, 11.15], [-10.5, 11.25], [-10.25, 11.15], [-10.18, 11.18], [-10.03, 11.53], [-9.5, 11.75], [-9.25, 11.65], [-9.0, 11.75], [-8.75, 11.65], [-8.5, 11.75], [-8.25, 11.65], [-8.0, 11.75], [-7.75, 11.65], [-7.5, 11.75], [-6.97, 11.53], [-6.75, 11.0], [-6.97, 10.47], [-7.32, 10.32], [-7.47, 9.97], [-8.0, 9.75], [-8.25, 9.85], [-8.32, 9.82], [-8.47, 9.47], [-9.0, 9.25], [-9.25, 9.35], [-9.5, 9.25], [-9.75, 9.35], [-9.82, 9.32], [-9.97, 8.97], [-10.5, 8.75], [-11.03, 8.97], [-11.18, 9.32], [-11.53, 9.47], [-11.68, 9.82], [-12.03, 9.97], [-12.25, 10.5]]]]}, "2014-05-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.25, 10.5], [-12.03, 11.03], [-11.5, 11.25], [-11.25, 11.15], [-11.0, 11.25], [-10.75, 11.15], [-10.5, 11.25], [-10.25, 11.15], [-10.18, 11.18], [-10.03, 11.53], [-9.5, 11.75], [-9.25, 11.65], [-9.0, 11.75], [-8.75, 11.65], [-8.5, 11.75], [-8.25, 11.65], [-8.0, 11.75], [-7.75, 11.65], [-7.5, 11.75], [-6.97, 11.53], [-6.75, 11.0], [-6.97, 10.47], [-7.32, 10.32], [-7.47, 9.97], [-8.0, 9.75], [-8.25, 9.85], [-8.32, 9.82], [-8.47, 9.47], [-9.0, 9.25], [-9.25, 9.35], [-9.5, 9.25], [-9.75, 9.35], [-9.82, 9.32], [-9.97, 8.97], [-10.5, 8.75], [-11.03, 8.97], [-11.18, 9.32], [-11.53, 9.47], [-11.68, 9.82], [-12.03, 9.97], [-12.25, 10.5]]]]}, "2014-05-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-12.25, 10.5], [-12.03, 11.03], [-11.5, 11.25], [-11.25, 11.15], [-11.0, 11.25], [-10.75, 11.15], [-10.5, 11.25], [-10.25, 11.15], [-10.18, 11.18], [-10.03, 11.53], [-9.5, 11.75], [-9.25, 11.65], [-9.0, 11.75], [-8.75, 11.65], [-8.5, 11.75], [-8.25, 11.65], [-8.0, 11.75], [-7.75, 11.65], [-7.5, 11.75], [-6.97, 11.53], [-6.75, 11.0], [-6.97, 10.47], [-7.32, 10.32], [-7.47, 9.97], [-8.0, 9.75], [-8.25, 9.85], [-8.32, 9.82], [-8.47, 9.47], [-9.0, 9.25], [-9.25, 9.35], [-9.5, 9.25], [-9.75, 9.35], [-9.82, 9.32], [-9.97, 8.97], [-10.5, 8.75], [-11.03, 8.97], [-11.18, 9.32], [-11.53, 9.47], [-11.68, 9.82], [-12.03, 9.97], [-12.25, 10.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.372075688118741}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.483103366762146}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.808868232652458, 24.527497747019083, 25.113636262543707]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.75958249121385, 21.883447515289106, 23.159718002360364]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.9484560469907108, -3.0648411053358497, -2.4360129479598767]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.402800620806545, -4.372075688118741, -3.2697351649463826]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5965893197102219, -2.5107487508842117, -1.9654176122821028]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.9854556129017171, -3.394723098560032, -2.3081640227796103]}}