{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:12:42.835528", "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": "2018-May-28_to_2018-May-31_32.5_-6.0"}, "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": 2018050001116}, "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": "May 28 2018"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 31 2018"}, "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": 64585.97132492967}, "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": ["Tanzania"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["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": -6.0}, "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": 32.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "32.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 30.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 33.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -7.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -3.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2018-05-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[30.75, -5.5], [30.97, -4.97], [31.32, -4.82], [31.35, -4.75], [31.25, -4.5], [31.46, -4.0], [31.25, -3.5], [31.47, -2.97], [32.0, -2.75], [32.53, -2.97], [32.75, -3.5], [32.54, -4.0], [32.68, -4.32], [33.03, -4.47], [33.25, -5.0], [33.15, -5.25], [33.18, -5.32], [33.53, -5.47], [33.75, -6.0], [33.53, -6.53], [33.18, -6.68], [33.03, -7.03], [32.5, -7.25], [31.97, -7.03], [31.82, -6.68], [31.47, -6.53], [31.32, -6.18], [30.97, -6.03], [30.75, -5.5]]]]}, "2018-05-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.75, -5.0], [29.97, -4.47], [30.5, -4.25], [31.0, -4.46], [31.32, -4.32], [31.35, -4.25], [31.25, -4.0], [31.35, -3.75], [31.25, -3.5], [31.47, -2.97], [32.0, -2.75], [32.53, -2.97], [32.75, -3.5], [32.65, -3.75], [32.75, -4.0], [32.65, -4.25], [32.68, -4.32], [33.03, -4.47], [33.25, -5.0], [33.15, -5.25], [33.18, -5.32], [33.53, -5.47], [33.75, -6.0], [33.65, -6.25], [33.75, -6.5], [33.53, -7.03], [33.18, -7.18], [33.03, -7.53], [32.5, -7.75], [32.25, -7.65], [32.18, -7.68], [32.03, -8.03], [31.5, -8.25], [30.97, -8.03], [30.75, -7.5], [30.97, -6.97], [31.32, -6.82], [31.35, -6.75], [31.32, -6.68], [30.97, -6.53], [30.82, -6.18], [30.47, -6.03], [30.32, -5.68], [29.97, -5.53], [29.75, -5.0]]]]}, "2018-05-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.75, -5.0], [29.97, -4.47], [30.5, -4.25], [31.0, -4.46], [31.32, -4.32], [31.35, -4.25], [31.25, -4.0], [31.35, -3.75], [31.25, -3.5], [31.47, -2.97], [32.0, -2.75], [32.53, -2.97], [32.75, -3.5], [32.65, -3.75], [32.75, -4.0], [32.65, -4.25], [32.68, -4.32], [33.03, -4.47], [33.25, -5.0], [33.15, -5.25], [33.18, -5.32], [33.53, -5.47], [33.75, -6.0], [33.65, -6.25], [33.75, -6.5], [33.53, -7.03], [33.18, -7.18], [33.03, -7.53], [32.5, -7.75], [32.25, -7.65], [32.18, -7.68], [32.03, -8.03], [31.5, -8.25], [30.97, -8.03], [30.75, -7.5], [30.97, -6.97], [31.32, -6.82], [31.35, -6.75], [31.32, -6.68], [30.97, -6.53], [30.82, -6.18], [30.47, -6.03], [30.32, -5.68], [29.97, -5.53], [29.75, -5.0]]]]}, "2018-05-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.75, -5.0], [29.97, -4.47], [30.5, -4.25], [31.0, -4.46], [31.32, -4.32], [31.35, -4.25], [31.25, -4.0], [31.47, -3.47], [32.0, -3.25], [32.53, -3.47], [32.75, -4.0], [32.65, -4.25], [32.68, -4.32], [33.03, -4.47], [33.25, -5.0], [33.15, -5.25], [33.18, -5.32], [33.53, -5.47], [33.75, -6.0], [33.65, -6.25], [33.75, -6.5], [33.53, -7.03], [33.18, -7.18], [33.03, -7.53], [32.5, -7.75], [32.25, -7.65], [32.18, -7.68], [32.03, -8.03], [31.5, -8.25], [30.97, -8.03], [30.75, -7.5], [30.97, -6.97], [31.32, -6.82], [31.35, -6.75], [31.32, -6.68], [30.97, -6.53], [30.82, -6.18], [30.47, -6.03], [30.32, -5.68], [29.97, -5.53], [29.75, -5.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.243242102644899}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.877398955902274}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [22.083093202194334, 20.576683279327654, 20.946855424931243, 21.730996895790156]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.42330901645613, 19.558016209223126, 19.926759770212186, 20.545426897842447]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.2891783369170702, -2.5175076741876707, -2.111455641707304, -1.2830466220491872]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.902146431951735, -3.243242102644899, -2.9790912959952607, -2.027231147000805]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.4586702206611641, -3.0906151982093197, -2.6018156770101535, -1.5722223392015675]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.964830990441179, -3.5943245077162134, -3.3573330641270873, -2.313314987105933]}}