{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:06:00.813800", "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": "2016-Aug-18_to_2016-Aug-20_34.0_19.0"}, "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": 2016080000530}, "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 18 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 20 2016"}, "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": 61077.74572319224}, "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": ["Sudan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "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": 19.0}, "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": 34.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "34.0\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": 34.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 18.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 21.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-08-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.97, 19.47], [29.75, 20.0], [29.97, 20.53], [30.5, 20.75], [30.75, 20.65], [31.0, 20.75], [31.25, 20.65], [31.5, 20.75], [31.75, 20.65], [32.0, 20.75], [32.25, 20.65], [32.5, 20.75], [32.75, 20.65], [33.0, 20.75], [33.25, 20.65], [33.32, 20.68], [33.47, 21.03], [33.82, 21.18], [33.97, 21.53], [34.5, 21.75], [35.03, 21.53], [35.25, 21.0], [35.15, 20.75], [35.25, 20.5], [35.15, 20.25], [35.25, 20.0], [35.15, 19.75], [35.25, 19.5], [35.03, 18.97], [34.68, 18.82], [34.53, 18.47], [34.18, 18.32], [34.03, 17.97], [33.5, 17.75], [32.97, 17.97], [32.75, 18.5], [32.85, 18.75], [32.8, 18.88], [32.5, 18.75], [32.25, 18.85], [32.0, 18.75], [31.75, 18.85], [31.5, 18.75], [30.97, 18.97], [30.82, 19.32], [30.75, 19.35], [30.5, 19.25], [29.97, 19.47]]]]}, "2016-08-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.97, 19.47], [29.75, 20.0], [29.97, 20.53], [30.5, 20.75], [30.75, 20.65], [31.0, 20.75], [31.25, 20.65], [31.5, 20.75], [31.75, 20.65], [32.0, 20.75], [32.25, 20.65], [32.5, 20.75], [32.75, 20.65], [33.0, 20.75], [33.25, 20.65], [33.32, 20.68], [33.47, 21.03], [33.82, 21.18], [33.97, 21.53], [34.5, 21.75], [35.03, 21.53], [35.25, 21.0], [35.15, 20.75], [35.25, 20.5], [35.15, 20.25], [35.25, 20.0], [35.15, 19.75], [35.25, 19.5], [35.03, 18.97], [34.68, 18.82], [34.53, 18.47], [34.18, 18.32], [34.03, 17.97], [33.5, 17.75], [32.97, 17.97], [32.75, 18.5], [32.85, 18.75], [32.8, 18.88], [32.5, 18.75], [32.25, 18.85], [32.0, 18.75], [31.75, 18.85], [31.5, 18.75], [30.97, 18.97], [30.82, 19.32], [30.75, 19.35], [30.5, 19.25], [29.97, 19.47]]]]}, "2016-08-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[29.97, 19.47], [29.75, 20.0], [29.97, 20.53], [30.5, 20.75], [30.75, 20.65], [31.0, 20.75], [31.25, 20.65], [31.5, 20.75], [31.75, 20.65], [32.0, 20.75], [32.25, 20.65], [32.5, 20.75], [32.75, 20.65], [33.0, 20.75], [33.25, 20.65], [33.32, 20.68], [33.47, 21.03], [33.82, 21.18], [33.97, 21.53], [34.5, 21.75], [35.03, 21.53], [35.25, 21.0], [35.15, 20.75], [35.25, 20.5], [35.15, 20.25], [35.25, 20.0], [35.15, 19.75], [35.25, 19.5], [35.03, 18.97], [34.68, 18.82], [34.53, 18.47], [34.18, 18.32], [34.03, 17.97], [33.5, 17.75], [32.97, 17.97], [32.75, 18.5], [32.85, 18.75], [32.8, 18.88], [32.5, 18.75], [32.25, 18.85], [32.0, 18.75], [31.75, 18.85], [31.5, 18.75], [30.97, 18.97], [30.82, 19.32], [30.75, 19.35], [30.5, 19.25], [29.97, 19.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.350503292366625}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.3228147742303342}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [32.98045471692052, 32.60057049549033, 32.87862144180252]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [31.888548715797413, 31.177858440133832, 32.239434462979204]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.185699339639181, -2.54353645959648, -2.2392085234553423]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.617568100906851, -3.350503292366625, -2.68688562950922]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5053199922987701, -1.6917956056059726, -1.481250906164736]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.7277551550276697, -1.9444721273145869, -1.858343389886568]}}