{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:39.567589", "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-Jun-14_to_2012-Jun-19_44.0_12.0"}, "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": 2012060000685}, "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": "June 14 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 19 2012"}, "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": 54376.149645046215}, "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": ["Yemen"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Arabian-Peninsula", "N.Eastern-Africa"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "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": ["Gulf of Aden"]}, "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": 12.0}, "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": 44.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "44.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 43.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 46.75}, "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": {"2012-06-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.47, 13.03], [44.0, 13.25], [44.25, 13.15], [44.5, 13.25], [44.75, 13.15], [45.0, 13.25], [45.3, 13.13], [45.47, 13.53], [46.0, 13.75], [46.25, 13.65], [46.5, 13.75], [47.03, 13.53], [47.25, 13.0], [47.15, 12.75], [47.25, 12.5], [47.03, 11.97], [46.5, 11.75], [46.25, 11.85], [46.18, 11.82], [46.15, 11.75], [46.25, 11.5], [46.03, 10.97], [45.5, 10.75], [44.97, 10.97], [44.82, 11.32], [44.75, 11.35], [44.68, 11.32], [44.53, 10.97], [44.0, 10.75], [43.47, 10.97], [43.25, 11.5], [43.46, 12.0], [43.25, 12.5], [43.47, 13.03]]]]}, "2012-06-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[43.35, 12.25], [43.25, 12.5], [43.47, 13.03], [44.0, 13.25], [44.25, 13.15], [44.5, 13.25], [44.75, 13.15], [45.0, 13.25], [45.3, 13.13], [45.47, 13.53], [46.0, 13.75], [46.25, 13.65], [46.5, 13.75], [47.03, 13.53], [47.25, 13.0], [47.15, 12.75], [47.25, 12.5], [47.03, 11.97], [46.5, 11.75], [46.25, 11.85], [46.18, 11.82], [46.15, 11.75], [46.25, 11.5], [46.03, 10.97], [45.5, 10.75], [45.0, 10.96], [44.5, 10.75], [44.25, 10.85], [44.0, 10.75], [43.47, 10.97], [43.25, 11.5], [43.35, 11.75], [43.25, 12.0], [43.35, 12.25]]]]}, "2012-06-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, 12.25], [42.75, 12.5], [42.97, 13.03], [43.5, 13.25], [43.75, 13.15], [44.0, 13.25], [44.25, 13.15], [44.5, 13.25], [44.75, 13.15], [45.0, 13.25], [45.3, 13.13], [45.47, 13.53], [46.0, 13.75], [46.25, 13.65], [46.5, 13.75], [47.03, 13.53], [47.25, 13.0], [47.15, 12.75], [47.25, 12.5], [47.03, 11.97], [46.5, 11.75], [46.25, 11.85], [46.18, 11.82], [46.15, 11.75], [46.25, 11.5], [46.03, 10.97], [45.5, 10.75], [45.0, 10.96], [44.5, 10.75], [44.25, 10.85], [44.0, 10.75], [43.75, 10.85], [43.5, 10.75], [42.97, 10.97], [42.75, 11.5], [42.85, 11.75], [42.75, 12.0], [42.85, 12.25]]]]}, "2012-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, 12.25], [42.75, 12.5], [42.97, 13.03], [43.5, 13.25], [43.75, 13.15], [44.0, 13.25], [44.25, 13.15], [44.32, 13.18], [44.47, 13.53], [45.0, 13.75], [45.53, 13.53], [45.75, 13.0], [45.63, 12.7], [46.03, 12.53], [46.25, 12.0], [46.03, 11.47], [45.5, 11.25], [45.25, 11.35], [45.18, 11.32], [45.03, 10.97], [44.5, 10.75], [44.25, 10.85], [44.0, 10.75], [43.75, 10.85], [43.5, 10.75], [42.97, 10.97], [42.75, 11.5], [42.85, 11.75], [42.75, 12.0], [42.85, 12.25]]]]}, "2012-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, 12.25], [42.75, 12.5], [42.97, 13.03], [43.5, 13.25], [44.0, 13.04], [44.32, 13.18], [44.47, 13.53], [45.0, 13.75], [45.53, 13.53], [45.75, 13.0], [45.53, 12.47], [45.18, 12.32], [45.15, 12.25], [45.25, 12.0], [45.03, 11.47], [44.68, 11.32], [44.53, 10.97], [44.0, 10.75], [43.75, 10.85], [43.5, 10.75], [42.97, 10.97], [42.75, 11.5], [42.85, 11.75], [42.75, 12.0], [42.85, 12.25]]]]}, "2012-06-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[42.85, 12.25], [42.75, 12.5], [42.97, 13.03], [43.5, 13.25], [44.0, 13.04], [44.32, 13.18], [44.47, 13.53], [45.0, 13.75], [45.53, 13.53], [45.75, 13.0], [45.53, 12.47], [45.18, 12.32], [45.15, 12.25], [45.25, 12.0], [45.03, 11.47], [44.68, 11.32], [44.53, 10.97], [44.0, 10.75], [43.75, 10.85], [43.5, 10.75], [42.97, 10.97], [42.75, 11.5], [42.85, 11.75], [42.75, 12.0], [42.85, 12.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.0849551348625823}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.117842698966042}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [30.48057110146567, 30.481032635241377, 30.4863680331257, 30.426879997749154, 30.47919440649855, 30.454299749015775]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.665962010662952, 29.71934180144723, 29.99346321539673, 29.99338019861466, 30.03306222037969, 30.067514184882782]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-0.9249237679404416, -0.9497172529106754, -1.036554363356415, -1.2821298218762915, -1.3477812370384328, -1.3978091168340256]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.182173563459969, -1.3168574174961805, -1.5781496770455874, -1.827299804354709, -1.991036553619665, -2.0849551348625823]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.578214107101614, -1.5892641081971877, -1.6093114035601315, -1.8599361899575353, -1.7586646099139267, -1.7624216981556466]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.0880678480541026, -1.9456066532815992, -2.1082543183419515, -2.563956727372909, -2.285801944158231, -2.322776891865528]}}