{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:45:09.835040", "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": "2010-Jul-22_to_2010-Jul-24_359.5_12.5"}, "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": 2010070000925}, "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": "July 22 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 24 2010"}, "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": 51364.06614787376}, "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": ["Burkina Faso"]}, "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": 12.5}, "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": -0.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "359.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": -1.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 1.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 11.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 13.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.65, 12.25], [-1.75, 12.5], [-1.65, 12.75], [-1.75, 13.0], [-1.53, 13.53], [-1.0, 13.75], [-0.75, 13.65], [-0.5, 13.75], [-0.25, 13.65], [0.0, 13.75], [0.53, 13.53], [0.68, 13.18], [1.03, 13.03], [1.18, 12.68], [1.25, 12.65], [1.5, 12.75], [2.03, 12.53], [2.25, 12.0], [2.03, 11.47], [1.5, 11.25], [1.25, 11.35], [1.18, 11.32], [1.03, 10.97], [0.5, 10.75], [0.25, 10.85], [0.0, 10.75], [-0.25, 10.85], [-0.5, 10.75], [-0.75, 10.85], [-1.0, 10.75], [-1.53, 10.97], [-1.75, 11.5], [-1.65, 11.75], [-1.75, 12.0], [-1.65, 12.25]]]]}, "2010-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.65, 12.25], [-1.75, 12.5], [-1.65, 12.75], [-1.75, 13.0], [-1.53, 13.53], [-1.0, 13.75], [-0.75, 13.65], [-0.5, 13.75], [-0.25, 13.65], [0.0, 13.75], [0.53, 13.53], [0.68, 13.18], [1.03, 13.03], [1.18, 12.68], [1.25, 12.65], [1.5, 12.75], [2.03, 12.53], [2.25, 12.0], [2.03, 11.47], [1.5, 11.25], [1.25, 11.35], [1.18, 11.32], [1.03, 10.97], [0.5, 10.75], [0.25, 10.85], [0.0, 10.75], [-0.25, 10.85], [-0.5, 10.75], [-0.75, 10.85], [-1.0, 10.75], [-1.53, 10.97], [-1.75, 11.5], [-1.65, 11.75], [-1.75, 12.0], [-1.65, 12.25]]]]}, "2010-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-1.65, 12.25], [-1.75, 12.5], [-1.65, 12.75], [-1.75, 13.0], [-1.53, 13.53], [-1.0, 13.75], [-0.75, 13.65], [-0.5, 13.75], [-0.25, 13.65], [0.0, 13.75], [0.53, 13.53], [0.68, 13.18], [1.03, 13.03], [1.18, 12.68], [1.25, 12.65], [1.5, 12.75], [2.03, 12.53], [2.25, 12.0], [2.03, 11.47], [1.5, 11.25], [1.25, 11.35], [1.18, 11.32], [1.03, 10.97], [0.5, 10.75], [0.25, 10.85], [0.0, 10.75], [-0.25, 10.85], [-0.5, 10.75], [-0.75, 10.85], [-1.0, 10.75], [-1.53, 10.97], [-1.75, 11.5], [-1.65, 11.75], [-1.75, 12.0], [-1.65, 12.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.07953351344463}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.508426956343035}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.0208403753968, 24.4045951954177, 25.201334366829315]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.37648575116424, 23.45737677983908, 24.607817593287052]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.1025432508504243, -2.6008870658943226, -1.8218505522843582]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.07953351344463, -2.924621928873762, -2.1937764847627363]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-2.391446994569938, -2.034902535999864, -1.467253003141012]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-3.031961929411025, -2.461939272678223, -1.7799571082493488]}}