{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:31.275267", "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": "2013-Jun-04_to_2013-Jun-07_39.5_3.5"}, "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": 2013060000274}, "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 04 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 07 2013"}, "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": 74082.55692462232}, "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": ["Ethiopia", "Kenya"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Eastern-Africa", "S.Eastern-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": 3.5}, "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": 39.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "39.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 36.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 40.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 1.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 4.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.35, 3.75], [36.25, 4.0], [36.47, 4.53], [37.0, 4.75], [37.25, 4.65], [37.5, 4.75], [37.75, 4.65], [38.0, 4.75], [38.53, 4.53], [38.75, 4.0], [38.65, 3.75], [38.68, 3.68], [38.75, 3.65], [38.82, 3.68], [38.97, 4.03], [39.5, 4.25], [40.03, 4.03], [40.18, 3.68], [40.53, 3.53], [40.75, 3.0], [40.65, 2.75], [40.75, 2.5], [40.65, 2.25], [40.75, 2.0], [40.53, 1.47], [40.0, 1.25], [39.75, 1.35], [39.5, 1.25], [39.25, 1.35], [39.0, 1.25], [38.75, 1.35], [38.5, 1.25], [37.97, 1.47], [37.82, 1.82], [37.47, 1.97], [37.32, 2.32], [37.25, 2.35], [37.0, 2.25], [36.47, 2.47], [36.25, 3.0], [36.35, 3.25], [36.25, 3.5], [36.35, 3.75]]]]}, "2013-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.35, 3.75], [36.25, 4.0], [36.47, 4.53], [37.0, 4.75], [37.25, 4.65], [37.5, 4.75], [37.75, 4.65], [38.0, 4.75], [38.53, 4.53], [38.75, 4.0], [38.65, 3.75], [38.68, 3.68], [38.75, 3.65], [38.82, 3.68], [38.97, 4.03], [39.5, 4.25], [39.75, 4.15], [40.0, 4.25], [40.53, 4.03], [40.75, 3.5], [40.65, 3.25], [40.75, 3.0], [40.65, 2.75], [40.75, 2.5], [40.65, 2.25], [40.75, 2.0], [40.53, 1.47], [40.0, 1.25], [39.75, 1.35], [39.5, 1.25], [39.25, 1.35], [39.0, 1.25], [38.75, 1.35], [38.5, 1.25], [37.97, 1.47], [37.82, 1.82], [37.47, 1.97], [37.32, 2.32], [37.25, 2.35], [37.0, 2.25], [36.47, 2.47], [36.25, 3.0], [36.35, 3.25], [36.25, 3.5], [36.35, 3.75]]]]}, "2013-06-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[36.35, 3.75], [36.25, 4.0], [36.47, 4.53], [37.0, 4.75], [37.25, 4.65], [37.5, 4.75], [37.75, 4.65], [38.0, 4.75], [38.53, 4.53], [38.75, 4.0], [38.65, 3.75], [38.68, 3.68], [38.75, 3.65], [38.82, 3.68], [38.97, 4.03], [39.5, 4.25], [39.75, 4.15], [40.0, 4.25], [40.53, 4.03], [40.75, 3.5], [40.65, 3.25], [40.75, 3.0], [40.65, 2.75], [40.75, 2.5], [40.65, 2.25], [40.75, 2.0], [40.53, 1.47], [40.0, 1.25], [39.75, 1.35], [39.5, 1.25], [39.25, 1.35], [39.0, 1.25], [38.75, 1.35], [38.5, 1.25], [37.97, 1.47], [37.82, 1.82], [37.47, 1.97], [37.32, 2.32], [37.25, 2.35], [37.0, 2.25], [36.47, 2.47], [36.25, 3.0], [36.35, 3.25], [36.25, 3.5], [36.35, 3.75]]]]}, "2013-06-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[38.97, 2.97], [38.75, 3.5], [38.97, 4.03], [39.5, 4.25], [39.75, 4.15], [40.0, 4.25], [40.53, 4.03], [40.75, 3.5], [40.53, 2.97], [40.0, 2.75], [39.75, 2.85], [39.5, 2.75], [38.97, 2.97]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.395874155988963}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.4289559684889315}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.822368957797494, 25.54498945826441, 25.358409513555728, 22.324106822819317]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.290921081741317, 21.12543675140529, 20.963127180404342, 21.238934397630942]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.2690100482220492, -1.433777544543344, -1.5998666714937475, -1.1595467028473365]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.4467649946290635, -1.9895545095209854, -2.395874155988963, -1.1712609550260709]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.3772578490020428, -1.5105789714795839, -1.6769376576813162, -1.2618591747404109]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.768833400452338, -1.987118540882819, -2.43041603496625, -1.3369014449909469]}}