{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:19:31.616764", "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": "2020-Apr-30_to_2020-May-02_36.0_3.0"}, "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": 2020040000748}, "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": "April 30 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 02 2020"}, "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": 55570.56567257905}, "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": ["Kenya", "Uganda"]}, "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": 3.0}, "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": 36.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "36.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 34.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 36.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 1.25}, "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": {"2020-04-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.85, 3.75], [33.75, 4.0], [33.97, 4.53], [34.5, 4.75], [34.75, 4.65], [35.0, 4.75], [35.53, 4.53], [35.68, 4.18], [36.03, 4.03], [36.18, 3.68], [36.53, 3.53], [36.68, 3.18], [37.03, 3.03], [37.25, 2.5], [37.15, 2.25], [37.25, 2.0], [37.15, 1.75], [37.25, 1.5], [37.03, 0.97], [36.5, 0.75], [36.25, 0.85], [36.0, 0.75], [35.47, 0.97], [35.32, 1.32], [34.97, 1.47], [34.82, 1.82], [34.47, 1.97], [34.32, 2.32], [33.97, 2.47], [33.75, 3.0], [33.85, 3.25], [33.75, 3.5], [33.85, 3.75]]]]}, "2020-05-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.85, 3.75], [33.75, 4.0], [33.97, 4.53], [34.5, 4.75], [34.75, 4.65], [35.0, 4.75], [35.53, 4.53], [35.68, 4.18], [36.03, 4.03], [36.18, 3.68], [36.53, 3.53], [36.68, 3.18], [37.03, 3.03], [37.25, 2.5], [37.15, 2.25], [37.25, 2.0], [37.15, 1.75], [37.25, 1.5], [37.03, 0.97], [36.5, 0.75], [36.25, 0.85], [36.0, 0.75], [35.47, 0.97], [35.32, 1.32], [34.97, 1.47], [34.82, 1.82], [34.47, 1.97], [34.32, 2.32], [33.97, 2.47], [33.75, 3.0], [33.85, 3.25], [33.75, 3.5], [33.85, 3.75]]]]}, "2020-05-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[33.85, 3.75], [33.75, 4.0], [33.97, 4.53], [34.5, 4.75], [34.75, 4.65], [35.0, 4.75], [35.53, 4.53], [35.68, 4.18], [36.03, 4.03], [36.18, 3.68], [36.53, 3.53], [36.68, 3.18], [37.03, 3.03], [37.25, 2.5], [37.15, 2.25], [37.25, 2.0], [37.15, 1.75], [37.25, 1.5], [37.03, 0.97], [36.5, 0.75], [36.25, 0.85], [36.0, 0.75], [35.47, 0.97], [35.32, 1.32], [34.97, 1.47], [34.82, 1.82], [34.47, 1.97], [34.32, 2.32], [33.97, 2.47], [33.75, 3.0], [33.85, 3.25], [33.75, 3.5], [33.85, 3.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.396347161189965}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -3.1562191474270693}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.169960089076028, 24.48393420838812, 24.401061886389527]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.330521399745464, 21.947981143791708, 21.411322303827774]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-3.353666550821657, -3.023665357671155, -3.0913255337883956]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-4.396347161189965, -3.77615504454036, -3.4681937605218423]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.748589209412038, -1.5733333245662413, -1.6287564996830217]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.081859760904725, -1.8343781872332205, -2.0395549522140315]}}