{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:35.586782", "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": "2012-Oct-16_to_2012-Oct-18_0.5_16.5"}, "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": 2012100000655}, "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": "October 16 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 18 2012"}, "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": 74010.83901901709}, "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": ["Mali"]}, "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": 16.5}, "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": 360.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "0.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 357.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 361.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 15.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 18.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-10-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.75, 16.5], [-2.53, 17.03], [-2.0, 17.25], [-1.75, 17.15], [-1.68, 17.18], [-1.53, 17.53], [-1.18, 17.68], [-1.03, 18.03], [-0.68, 18.18], [-0.53, 18.53], [-0.18, 18.68], [-0.03, 19.03], [0.5, 19.25], [1.03, 19.03], [1.25, 18.5], [1.15, 18.25], [1.25, 18.0], [1.15, 17.75], [1.25, 17.5], [1.15, 17.25], [1.18, 17.18], [1.25, 17.15], [1.5, 17.25], [2.03, 17.03], [2.25, 16.5], [2.15, 16.25], [2.25, 16.0], [2.03, 15.47], [1.5, 15.25], [1.25, 15.35], [1.0, 15.25], [0.75, 15.35], [0.5, 15.25], [0.25, 15.35], [0.0, 15.25], [-0.25, 15.35], [-0.32, 15.32], [-0.47, 14.97], [-1.0, 14.75], [-1.25, 14.85], [-1.5, 14.75], [-2.03, 14.97], [-2.25, 15.5], [-2.15, 15.75], [-2.18, 15.82], [-2.53, 15.97], [-2.75, 16.5]]]]}, "2012-10-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.75, 16.5], [-2.53, 17.03], [-2.0, 17.25], [-1.75, 17.15], [-1.68, 17.18], [-1.53, 17.53], [-1.18, 17.68], [-1.03, 18.03], [-0.68, 18.18], [-0.53, 18.53], [-0.18, 18.68], [-0.03, 19.03], [0.5, 19.25], [1.03, 19.03], [1.25, 18.5], [1.15, 18.25], [1.25, 18.0], [1.15, 17.75], [1.25, 17.5], [1.15, 17.25], [1.18, 17.18], [1.25, 17.15], [1.5, 17.25], [2.03, 17.03], [2.25, 16.5], [2.15, 16.25], [2.25, 16.0], [2.03, 15.47], [1.5, 15.25], [1.25, 15.35], [1.0, 15.25], [0.75, 15.35], [0.5, 15.25], [0.25, 15.35], [0.0, 15.25], [-0.25, 15.35], [-0.32, 15.32], [-0.47, 14.97], [-1.0, 14.75], [-1.25, 14.85], [-1.5, 14.75], [-2.03, 14.97], [-2.25, 15.5], [-2.15, 15.75], [-2.18, 15.82], [-2.53, 15.97], [-2.75, 16.5]]]]}, "2012-10-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-2.75, 16.5], [-2.53, 17.03], [-2.0, 17.25], [-1.75, 17.15], [-1.68, 17.18], [-1.53, 17.53], [-1.18, 17.68], [-1.03, 18.03], [-0.68, 18.18], [-0.53, 18.53], [-0.18, 18.68], [-0.03, 19.03], [0.5, 19.25], [1.03, 19.03], [1.25, 18.5], [1.15, 18.25], [1.25, 18.0], [1.15, 17.75], [1.25, 17.5], [1.15, 17.25], [1.18, 17.18], [1.25, 17.15], [1.5, 17.25], [2.03, 17.03], [2.25, 16.5], [2.15, 16.25], [2.25, 16.0], [2.03, 15.47], [1.5, 15.25], [1.25, 15.35], [1.0, 15.25], [0.75, 15.35], [0.5, 15.25], [0.25, 15.35], [0.0, 15.25], [-0.25, 15.35], [-0.32, 15.32], [-0.47, 14.97], [-1.0, 14.75], [-1.25, 14.85], [-1.5, 14.75], [-2.03, 14.97], [-2.25, 15.5], [-2.15, 15.75], [-2.18, 15.82], [-2.53, 15.97], [-2.75, 16.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -6.761086109864323}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -4.557713851234798}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.877478222346838, 27.1105386593282, 29.62168033674851]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.156523230296102, 26.24492314923185, 28.140083095894795]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.62176398730825, -5.3121426259231885, -2.7392349404729543]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.761086109864323, -6.755583805000981, -4.027123045179792]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-4.087139177188009, -3.8720246936486418, -1.944334572333365]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-5.029743590525214, -5.062404671640252, -2.9454029387672396]}}