{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:05.204177", "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-Aug-22_to_2014-Aug-25_27.0_-27.0"}, "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": 2014080000952}, "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": "August 22 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 25 2014"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 54728.62858303357}, "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": ["Lesotho", "South Africa"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.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": -27.0}, "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": 27.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "27.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 25.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 29.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -29.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -26.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-08-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.47, -26.97], [25.82, -26.82], [25.85, -26.75], [25.75, 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[28.0, -25.75], [28.53, -25.97], [28.75, -26.5], [28.65, -26.75], [28.75, -27.0], [28.53, -27.53], [28.13, -27.7], [28.25, -28.0], [28.15, -28.25], [28.18, -28.32], [28.53, -28.47], [28.68, -28.82], [28.75, -28.85], [29.0, -28.75], [29.53, -28.97], [29.75, -29.5], [29.53, -30.03], [29.0, -30.25], [28.75, -30.15], [28.5, -30.25], [27.97, -30.03], [27.82, -29.68], [27.75, -29.65], [27.5, -29.75], [26.97, -29.53], [26.75, -29.0], [26.85, -28.75], [26.82, -28.68], [26.75, -28.65], [26.5, -28.75], [26.25, -28.65], [26.0, -28.75], [25.47, -28.53], [25.25, -28.0], [25.35, -27.75], [25.25, -27.5], [25.47, -26.97]]]]}, "2014-08-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[25.47, -26.97], [25.82, -26.82], [25.85, -26.75], [25.75, -26.5], [25.97, -25.97], [26.5, -25.75], [26.75, -25.85], [27.0, -25.75], [27.25, -25.85], [27.5, -25.75], [27.75, -25.85], [28.0, -25.75], [28.53, -25.97], [28.75, -26.5], [28.65, -26.75], [28.75, -27.0], [28.53, -27.53], [28.13, -27.7], [28.25, 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-5.302424182300326}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [6.752201133234507, 6.9642229939152, 7.628796791170942, 9.708502251890252]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-0.2315805117904688, 0.4900736356574953, 1.243447966513088, 9.708502251890252]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-5.448446276008786, -5.487842239464425, -4.993919121358405, -4.843722383687577]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-6.0352397328462075, -6.34666741353243, -5.709431694405566, -4.843722383687577]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.6300803725526674, -1.596371453780952, -1.5052288374267069, -1.4623177392935347]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7547539238375192, -1.7743209681564558, -1.6507872638766938, -1.4623177392935347]}}