{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:56.115237", "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-Mar-29_to_2014-Apr-03_23.0_-13.5"}, "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": 2014030001100}, "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 29 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 03 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 72430.99429133265}, "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": ["Angola", "Congo DRC", "Zambia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.Southern-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": -13.5}, "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": 23.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "23.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 20.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 24.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -13.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -10.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-03-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.46, -12.5], [20.25, -12.0], [20.47, -11.47], [21.0, -11.25], 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-13.0], [20.46, -12.5]]]]}, "2014-03-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.46, -12.5], [20.25, -12.0], [20.47, -11.47], [21.0, -11.25], [21.53, -11.47], [21.68, -11.82], [21.75, -11.85], [22.0, -11.75], [22.25, -11.85], [22.5, -11.75], [23.03, -11.97], [23.18, -12.32], [23.53, -12.47], [23.75, -13.0], [23.65, -13.25], [23.75, -13.5], [23.53, -14.03], [23.0, -14.25], [22.75, -14.15], [22.5, -14.25], [22.25, -14.15], [22.0, -14.25], [21.75, -14.15], [21.5, -14.25], [21.25, -14.15], [21.0, -14.25], [20.47, -14.03], [20.25, -13.5], [20.35, -13.25], [20.25, -13.0], [20.46, -12.5]]]]}, "2014-04-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[20.25, -13.0], [20.47, -12.47], [20.82, -12.32], [20.97, -11.97], [21.5, -11.75], [21.75, -11.85], [22.0, -11.75], [22.25, -11.85], [22.38, -11.8], [22.25, -11.5], [22.47, -10.97], [22.82, -10.82], [22.85, -10.75], [22.75, -10.5], [22.97, -9.97], [23.5, -9.75], [24.03, -9.97], [24.18, -10.32], [24.53, 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mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.505179625241283, 20.069262776115465, 20.166272362381562, 19.420636811880797, 19.87717953360726, 19.67111416704472]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.43880499580166, 19.581620346263037, 19.588074429363303, 17.63424707346104, 18.727688228391855, 18.975899293357088]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.2779670605231719, -1.7491104289749362, -1.6480402008918378, -2.1483739464765184, -1.5757301782831479, -1.54474488137314]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.588994011412865, -2.1469892095454384, -2.3564266517390706, -2.87814002961926, -1.9572159296664609, -1.7595280852387987]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3985727229163556, -1.8638297602743232, -1.7120066147777993, -2.149923678873071, -1.5596960783098262, -1.5509992006706688]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.6372098616518214, -2.2877104460135436, -2.5272372999970067, -2.811097846882167, -1.841935326982958, -1.7797763566303104]}}