{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:52.644608", "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": "2016-Mar-07_to_2016-Mar-09_348.0_24.5"}, "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": 2016030000187}, "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": "March 07 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 09 2016"}, "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": 62176.435744770715}, "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": 24.5}, "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": 348.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "348.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 346.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 349.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 22.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 25.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-03-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.15, 24.25], [-14.25, 24.5], [-14.15, 24.75], [-14.25, 25.0], [-14.03, 25.53], [-13.5, 25.75], [-12.97, 25.53], [-12.82, 25.18], [-12.75, 25.15], [-12.5, 25.25], [-12.25, 25.15], [-12.0, 25.25], [-11.75, 25.15], [-11.5, 25.25], [-10.97, 25.03], [-10.82, 24.68], [-10.75, 24.65], [-10.5, 24.75], [-9.97, 24.53], [-9.75, 24.0], [-9.97, 23.47], [-10.32, 23.32], [-10.47, 22.97], [-10.82, 22.82], [-10.97, 22.47], [-11.5, 22.25], [-11.75, 22.35], [-12.0, 22.25], [-12.5, 22.46], [-13.0, 22.25], [-13.53, 22.47], [-13.68, 22.82], [-14.03, 22.97], [-14.25, 23.5], [-14.15, 23.75], [-14.25, 24.0], [-14.15, 24.25]]]]}, "2016-03-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.15, 24.25], [-14.25, 24.5], [-14.15, 24.75], [-14.25, 25.0], [-14.03, 25.53], [-13.5, 25.75], [-12.97, 25.53], [-12.82, 25.18], [-12.75, 25.15], [-12.5, 25.25], [-12.25, 25.15], [-12.0, 25.25], [-11.75, 25.15], [-11.5, 25.25], [-10.97, 25.03], [-10.82, 24.68], [-10.75, 24.65], [-10.5, 24.75], [-9.97, 24.53], [-9.75, 24.0], [-9.97, 23.47], [-10.32, 23.32], [-10.47, 22.97], [-10.82, 22.82], [-10.97, 22.47], [-11.5, 22.25], [-11.75, 22.35], [-12.0, 22.25], [-12.5, 22.46], [-13.0, 22.25], [-13.53, 22.47], [-13.68, 22.82], [-14.03, 22.97], [-14.25, 23.5], [-14.15, 23.75], [-14.25, 24.0], [-14.15, 24.25]]]]}, "2016-03-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-14.15, 24.25], [-14.25, 24.5], [-14.15, 24.75], [-14.25, 25.0], [-14.03, 25.53], [-13.5, 25.75], [-12.97, 25.53], [-12.82, 25.18], [-12.75, 25.15], [-12.5, 25.25], [-12.25, 25.15], [-12.0, 25.25], [-11.75, 25.15], [-11.5, 25.25], [-10.97, 25.03], [-10.82, 24.68], [-10.75, 24.65], [-10.5, 24.75], [-9.97, 24.53], [-9.75, 24.0], [-9.97, 23.47], [-10.32, 23.32], [-10.47, 22.97], [-10.82, 22.82], [-10.97, 22.47], [-11.5, 22.25], [-11.75, 22.35], [-12.0, 22.25], [-12.5, 22.46], [-13.0, 22.25], [-13.53, 22.47], [-13.68, 22.82], [-14.03, 22.97], [-14.25, 23.5], [-14.15, 23.75], [-14.25, 24.0], [-14.15, 24.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.802018501875978}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.237817376701494}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.657108555061598, 16.661285128866098, 17.005049542733673]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [15.154363662405501, 15.245048160407578, 15.434668020580489]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-4.233868219987908, -4.390371701977082, -4.089212208139491]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.557148134561885, -4.769187706358025, -4.802018501875978]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4064953594760965, -1.4894394273557885, -1.4272911155639574]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5289310318554656, -1.635130060799662, -1.650360380981275]}}