{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:19:51.079545", "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": "2019-Jun-02_to_2019-Jun-05_29.0_-7.5"}, "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": 2019060000147}, "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 02 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 05 2019"}, "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": 54986.583698025126}, "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": ["Congo DRC", "Zambia"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Southern-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": -7.5}, "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": 29.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "29.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 28.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 30.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -10.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -6.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-06-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[28.97, -11.03], [28.75, -10.5], [28.97, -9.97], [29.5, -9.75], [29.75, -9.85], [30.0, -9.75], [30.53, -9.97], [30.75, -10.5], [30.53, -11.03], [30.0, -11.25], [29.75, -11.15], [29.5, -11.25], [28.97, -11.03]]]]}, "2019-06-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.96, -8.5], [27.75, -8.0], [27.85, -7.75], [27.75, -7.5], [27.85, -7.25], [27.75, -7.0], [27.97, -6.47], [28.5, -6.25], [29.03, -6.47], [29.18, -6.82], [29.25, -6.85], [29.5, -6.75], [30.03, -6.97], [30.18, -7.32], [30.53, -7.47], [30.75, -8.0], [30.53, -8.53], [30.0, -8.75], [30.53, -8.97], [30.75, -9.5], [30.54, -10.0], [30.75, -10.5], [30.53, -11.03], [30.0, -11.25], [29.75, -11.15], [29.5, -11.25], [28.97, -11.03], [28.75, -10.5], [28.85, -10.25], [28.82, -10.18], [28.75, -10.15], [28.5, -10.25], [27.97, -10.03], [27.75, -9.5], [27.85, -9.25], [27.75, -9.0], [27.96, -8.5]], [[29.75, -8.65], [29.68, -8.68], [29.65, -8.75], [29.68, -8.82], [29.75, -8.85], [30.0, -8.75], [29.75, -8.65]]]]}, "2019-06-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.96, -8.5], [27.75, -8.0], [27.85, -7.75], [27.75, -7.5], [27.85, -7.25], [27.75, -7.0], [27.97, -6.47], [28.5, -6.25], [29.03, -6.47], [29.18, -6.82], [29.25, -6.85], [29.5, -6.75], [30.03, -6.97], [30.18, -7.32], [30.53, -7.47], [30.75, -8.0], [30.53, -8.53], [30.0, -8.75], [30.53, -8.97], [30.75, -9.5], [30.54, -10.0], [30.75, -10.5], [30.53, -11.03], [30.0, -11.25], [29.75, -11.15], [29.5, -11.25], [28.97, -11.03], [28.75, -10.5], [28.85, -10.25], [28.82, -10.18], [28.75, -10.15], [28.5, -10.25], [27.97, -10.03], [27.75, -9.5], [27.85, -9.25], [27.75, -9.0], [27.96, -8.5]], [[29.75, -8.65], [29.68, -8.68], [29.65, -8.75], [29.68, -8.82], [29.75, -8.85], [30.0, -8.75], [29.75, -8.65]]]]}, "2019-06-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[27.96, -8.5], [27.75, -8.0], [27.85, -7.75], [27.75, -7.5], [27.85, -7.25], [27.75, -7.0], [27.97, -6.47], [28.5, -6.25], [29.03, -6.47], [29.18, -6.82], [29.25, -6.85], [29.5, -6.75], [30.03, -6.97], [30.18, -7.32], [30.53, -7.47], [30.75, -8.0], [30.53, -8.53], [30.0, -8.75], [30.53, -8.97], [30.75, -9.5], [30.53, -10.03], [30.18, -10.18], [30.03, -10.53], [29.5, -10.75], [28.97, -10.53], [28.82, -10.18], [28.75, -10.15], [28.5, -10.25], [27.97, -10.03], [27.75, -9.5], [27.85, -9.25], [27.75, -9.0], [27.96, -8.5]], [[29.75, -8.65], [29.68, -8.68], [29.65, -8.75], [29.68, -8.82], [29.75, -8.85], [30.0, -8.75], [29.75, -8.65]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.3733718866676554}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.8846541423483023}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.261708850137893, 19.729650382547447, 19.511711586152558, 19.672600557794226]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [17.095995273904123, 16.668237503330317, 16.4612927616742, 16.729357619645953]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.8948196474640042, -1.7844676444535519, -1.9132266614931206, -1.9639491803025138]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.9673752580596897, -2.3733718866676554, -2.2524329653304562, -2.3511356082543102]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.5080344346541363, -1.6760524387816556, -1.7936004493210587, -1.8891707491945657]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.5493953113918826, -2.199148033222507, -2.2245619699758548, -2.258429704728912]}}